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1.
Am J Physiol Heart Circ Physiol ; 326(6): H1462-H1468, 2024 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-38639741

RESUMO

It is unclear whether muscle blood flow (MBF) is altered in long-term Hodgkin lymphoma (HL) survivors. We tested the hypothesis that 1) MBF response during mental stress (MS) is impaired in long-term HL survivors and 2) aerobic exercise training combined with local strength exercise (ET) restores MBF responses during MS in these survivors. Eighteen 5-year HL survivors and 10 aged-paired healthy subjects (HC) were studied. Twenty HL survivors were randomly divided into two groups: exercise-trained (HLT, n = 10) and untrained (HLUT, n = 10). Maximal aerobic capacity was evaluated by a cardiopulmonary exercise test and forearm blood flow (FBF) by venous occlusion plethysmography. MS was elicited by Stroop color and word test. ET was conducted for 4 mo, 3/wk for 60 min each session. The aerobic exercise intensity corresponded to anaerobic threshold up to 10% below the respiratory compensation point. The strength exercises consisted of two to three sets of chest press, pulley and squat exercises, 12-15 repetitions each exercise at 30-50% of the maximal voluntary contraction. Baseline was similar in HL survivors and HC, except peak oxygen consumption (peak V̇o2, P = 0.013) and FBF (P = 0.006) that were lower in the HL survivors. FBF responses during MS were lower in HL survivors (P < 0.001). ET increased peak V̇o2 (11.59 ± 3.07%, P = 0.002) and FBF at rest (33.74 ± 5.13%, P < 0.001) and during MS (24 ± 5.31%, P = 0.001). Further analysis showed correlation between the changes in peak V̇o2 and the changes in FBF during MS (r = 0.711, P = 0.001). In conclusion, long-term HL survivors have impaired MBF responses during MS. ET restores MBF responses during MS.NEW & NOTEWORTHY Long-term Hodgkin lymphoma (HL) survivors have impaired muscle blood flow responses during mental stress and decreased maximal aerobic capacity. Supervised aerobic exercise training combined with local strength exercises restores muscle blood flow responses during mental stress and maximal aerobic capacity in these survivors. These findings provide evidence of safety and effectiveness of exercise training in HL survivors. Moreover, they highlight the importance of exercise training in the treatment of this set of patients.


Assuntos
Sobreviventes de Câncer , Tolerância ao Exercício , Doença de Hodgkin , Músculo Esquelético , Consumo de Oxigênio , Fluxo Sanguíneo Regional , Treinamento Resistido , Humanos , Doença de Hodgkin/fisiopatologia , Doença de Hodgkin/terapia , Masculino , Feminino , Adulto , Músculo Esquelético/irrigação sanguínea , Músculo Esquelético/fisiopatologia , Pessoa de Meia-Idade , Exercício Físico , Fatores de Tempo , Antebraço/irrigação sanguínea , Terapia por Exercício/métodos , Aptidão Cardiorrespiratória
2.
J Assist Reprod Genet ; 37(7): 1755-1761, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32488563

RESUMO

RESEARCH QUESTION: How is ovarian reserve affected by chemotherapy in patients with Hodgkin lymphoma (HL) who undergo fertility preservation (FP)? METHODS: A retrospective study was conducted by reviewing medical records of 105 HL patients referred to the FP unit before starting adriamycin, bleomycin, vinblastine, and dacarbazine (ABVD) chemotherapy. Ovarian reserve was evaluated before chemotherapy and at the last follow-up using anti-Müllerian hormone (AMH) and antral follicle count (AFC) measurements. The decrease in AMH was compared with that expected from normograms. AMH was compared between patients who underwent cryopreservation of ovarian tissue and those who underwent cryopreservation of mature oocytes. RESULTS: After ABVD, 15% of patients required hematopoietic stem cell transplantation. At a median follow-up of 33 months, the median decrease in AMH was 0.88 ng/mL, which was significantly greater than that of the general population of this age group (p < 0.001). Of the 82 women who only had ABVD, 38 underwent FP by cryopreservation of mature oocytes and 44 underwent cryopreservation of the ovarian cortex. There was no significant difference in AMH or AFC at the last follow-up between FP techniques. CONCLUSION: Although ABVD is considered to be of low gonadotoxic risk, the decrease in AMH was greater than expected for patients' age, and 15% of patients needed more aggressive therapy during follow-up. Type of FP was not associated with decline in ovarian reserve. Reproductive-aged women with HL should have the opportunity for FP counseling before starting treatment.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Preservação da Fertilidade , Doença de Hodgkin/tratamento farmacológico , Reserva Ovariana/efeitos dos fármacos , Reserva Ovariana/fisiologia , Adulto , Fatores Etários , Hormônio Antimülleriano/sangue , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Bleomicina/efeitos adversos , Bleomicina/uso terapêutico , Dacarbazina/efeitos adversos , Dacarbazina/uso terapêutico , Doxorrubicina/efeitos adversos , Doxorrubicina/uso terapêutico , Feminino , Transplante de Células-Tronco Hematopoéticas , Doença de Hodgkin/fisiopatologia , Doença de Hodgkin/terapia , Humanos , Preservação de Órgãos , Folículo Ovariano/efeitos dos fármacos , Estudos Retrospectivos , Vimblastina/efeitos adversos , Vimblastina/uso terapêutico
3.
J Med Virol ; 91(5): 845-855, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30609049

RESUMO

The incidence of Hodgkin's lymphoma (HL) is growing due to an increase in Epstein-Barr virus (EBV)-associated HL in AIDS patients. The HL tumor microenvironment is vital for the survival of the malignant Hodgkin-Reed Sternberg (HRS) cells of HL, which express the EBV protein latent membrane protein 2A (LMP2A). While previous work shows that LMP2A mimics B-cell receptor (BCR) signaling to promote the survival of HRS cells, the ability of LMP2A to establish and maintain the tumor microenvironment through the production of chemokines remains unknown. Since BCR signaling induces the production of the chemokine macrophage inflammatory protein-1α (MIP-1α), and since LMP2A is a BCR mimic, we hypothesized that LMP2A increases MIP-1α levels. A comparison of multiple LMP2A-negative and -positive cell lines demonstrates that LMP2A increases MIP-1α. Additionally, LMP2A-mutant cell lines and pharmacologic inhibitors indicate that LMP2A activates a Syk/PI3K/NF-κB pathway to enhance MIP-1α. Finally, based on the finding that an NF-κB inhibitor decreased MIP-1α RNA/protein in LMP2A-positive cells, we are the first to demonstrate that LMP2A increases the nuclear localization of the NF-κB p65 subunit using DNA-binding assays and confocal microscopy in human B cells. These findings not only have implications for the treatment of HL, but also other LMP2A-expressing B-cell tumors that overexpress NF-κB.


Assuntos
Proteínas Adaptadoras de Transdução de Sinal/metabolismo , Doença de Hodgkin/fisiopatologia , NF-kappa B/metabolismo , Fosfatidilinositol 3-Quinase/metabolismo , Quinase Syk/metabolismo , Proteínas da Matriz Viral/metabolismo , Sobrevivência Celular , Humanos , Células de Reed-Sternberg/fisiologia
4.
Pediatr Blood Cancer ; 66(3): e27506, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30362255

RESUMO

BACKGROUND: There are limited data describing fitness and associated health-related quality of life (HRQoL) in survivors of childhood Hodgkin lymphoma (HL). PROCEDURE: Fitness was evaluated among 336 adult survivors of childhood-onset HL treated at St. Jude Children's Research Hospital and 327 controls who never had childhood cancer. The controls were frequency matched on age, sex, and race. Associations were examined between chronic disease and fitness and between fitness and HRQoL using a multivariable linear and logistic regression. RESULTS: Male survivors had lower endurance (6-min walk [6MW] distance 604.4 ± 7.9 m vs 637.0 ± 7.5 m, P < 0.01), and worse neuropathy (modified Total Neuropathy Score [mTNS] 2.7 ± 0.2 vs 1.4 ± 0.2, P < 0.01) compared to controls. Female survivors had lower endurance (6MW distance 564.5 ± 6.9 m vs 590.6 ± 7.0 m, P < 0.01), quadriceps strength (145.7 ± 4.0 vs 163.4 ± 4.0 N·m per kilogram, P < 0.01), and worse neuropathy (mTNS 3.2 ± 0.2 vs 1.4 ± 0.3, P < 0.01) compared to controls. Moderate, severe/disabling, or life-threatening (grades 2-4) neurological conditions were associated with impaired quadriceps strength (odds ratio [OR] 2.94, 99% confidence interval [CI] 1.24-6.96) and impaired endurance (OR 2.96, 99% CI 1.28-6.69). Cardiovascular (OR 2.36, 99% CI 1.00-5.61) and pulmonary (OR 2.78, 99% CI 1.30-5.94) conditions were associated with impaired endurance. Quadriceps strength (ß -6.44 ± 2.01, P < 0.01), endurance (ß -4.63 ± 1.54, P < 0.01), and neuropathy (ß -4.98 ± 1.14, P < 0.01) were associated with a lower physical component summary on the HRQoL. CONCLUSION: Survivors of childhood HL, particularly those with neurological, cardiac, and pulmonary chronic conditions, are at risk for impaired fitness and HRQoL.


Assuntos
Exercício Físico , Cardiopatias/fisiopatologia , Doença de Hodgkin/complicações , Pneumopatias/fisiopatologia , Debilidade Muscular/fisiopatologia , Doenças do Sistema Nervoso Periférico/fisiopatologia , Qualidade de Vida , Adolescente , Adulto , Estudos de Coortes , Feminino , Seguimentos , Doença de Hodgkin/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Sobreviventes , Adulto Jovem
5.
J Pak Med Assoc ; 69(7): 1059, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31983750

RESUMO

Hodgkin lymphoma is a high grade lymphoma which is usually confined to the lymphnodes. Extranodal involvement of the Hodgkin lymphoma is uncommon but any organ can be involved.. Extramedullary haematopoiesis is the production of red cells outside the medullary cavity in response to failure of erythrogenesis in bone marrow which can occur due to many diseases with thalassaemia and myelofibrosis being most common. We present a case of a 21 year old patient who underwent PET-CT scan for the staging of Hodgkin lymphoma and revealed co-existing extramedullary haematopoiesis secondary to known thalassaemia.


Assuntos
Hematopoese Extramedular/fisiologia , Doença de Hodgkin , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Talassemia beta , Adulto , Doença de Hodgkin/diagnóstico por imagem , Doença de Hodgkin/fisiopatologia , Humanos , Masculino , Tronco/diagnóstico por imagem , Adulto Jovem , Talassemia beta/diagnóstico por imagem , Talassemia beta/fisiopatologia
6.
J Transl Med ; 16(1): 295, 2018 10 25.
Artigo em Inglês | MEDLINE | ID: mdl-30359253

RESUMO

BACKGROUND: Doxorubicin (DOX)-based chemotherapy for Hodgkin lymphoma (HL) yields excellent disease-free survival, but poses a substantial risk of subsequent left ventricular (LV) dysfunction and heart failure, typically with delayed onset. At the cellular level, this cardiotoxicity includes deranged cardiac glucose metabolism. METHODS: By reviewing the hospital records from January 2008 through December 2016, we selected HL patients meeting the following criteria: ≥ 18 year-old; first-line DOX-containing chemotherapy; no diabetes and apparent cardiovascular disease; 18-fluoro-deoxyglucose positron emission tomography (18FDG-PET) scans before treatment (PETSTAGING), after 2 cycles (PETINTERIM) and at the end of treatment (PETEOT); at least one echocardiography ≥ 6 months after chemotherapy completion (ECHOPOST). We then evaluated the changes in LV 18FDG standardized uptake values (SUV) during the course of DOX therapy, and the relationship between LV-SUV and LV ejection fraction (LVEF), as calculated from the LV diameters in the echocardiography reports with the Teicholz formula. RESULTS: Forty-three patients (35 ± 13 year-old, 58% males) were included in the study, with 26 (60%) also having a baseline echocardiography available (ECHOPRE). LV-SUV gradually increased from PETSTAGING (log-transformed mean 0.20 ± 0.27) to PETINTERIM (0.27 ± 0.35) to PETEOT (0.30 ± 0.41; P for trend < 0.001). ECHOPOST was performed 22 ± 17 months after DOX chemotherapy. Mean LVEF was normal (68.8 ± 10.3%) and only three subjects (7%) faced a drop below the upper normal limit of 53%. However, when patients were categorized by median LV-SUV, LVEF at ECHOPOST resulted significantly lower in those with LV-SUV above than below the median value at both PETINTERIM (65.5 ± 11.8% vs. 71.9 ± 7.8%, P = 0.04) and PETEOT (65.6 ± 12.2% vs. 72.2 ± 7.0%, P = 0.04). This was also the case when only patients with ECHOPRE and ECHOPOST were considered (LVEF at ECHOPOST 64.7 ± 8.9% vs. 73.4 ± 7.6%, P = 0.01 and 64.6 ± 9.3% vs. 73.5 ± 7.0%, P = 0.01 for those with LV-SUV above vs. below the median at PETINTERIM and PETEOT, respectively). Furthermore, the difference between LVEF at ECHOPRE and ECHOPOST was inversely correlated with LV-SUV at PETEOT (P < 0.01, R2 = - 0.30). CONCLUSIONS: DOX-containing chemotherapy causes an increase in cardiac 18FDG uptake, which is associated with a decline in LVEF. Future studies are warranted to understand the molecular basis and the potential clinical implications of this observation.


Assuntos
Antraciclinas/uso terapêutico , Doença de Hodgkin/tratamento farmacológico , Doença de Hodgkin/fisiopatologia , Miocárdio/metabolismo , Volume Sistólico , Adulto , Antraciclinas/farmacologia , Doxorrubicina/farmacologia , Doxorrubicina/uso terapêutico , Feminino , Fluordesoxiglucose F18/metabolismo , Seguimentos , Doença de Hodgkin/diagnóstico por imagem , Humanos , Masculino , Músculos/efeitos dos fármacos , Músculos/metabolismo , Tomografia por Emissão de Pósitrons
7.
Curr Opin Oncol ; 29(4): 229-234, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28463858

RESUMO

PURPOSE OF REVIEW: After the important advances in the treatment of germ cell tumors (GCTs) leading to high cure rates, physical long-term side-effects represent an important cause of death in these young adult survivors. Highlighting these physical long-term side-effects, their monitoring and their prevention modalities is necessary for a better management of these cancer survivors. RECENT FINDINGS: Impaired fertility, increased risk of developing a second cancer, cardiac, pulmonary, renal and neural toxicity, hearing and vision impairment are the major physical side-effects in young adult cancer survivors. Long-term cardiac toxicity, next to second malignancies, represents life-threatening conditions in testicular cancer survivors. The long-term nephrotoxity in testicular GCTs survivors is most frequently associated to the treatment either in those treated with cisplatin-based chemotherapy, mainly Bleomycine, Etoposide, Cisplatin, or those receiving infradiaphragmatic radiation therapy, whereas pulmonary toxicity is mainly attributed to bleomycin related toxicities. SUMMARY: There are no clear and comprehensive data concerning the monitoring and prevention of long-term side-effects in testicular cancer survivors. Physical activity and interventions in modifiable cardiovascular risk factors and lifestyles may reduce the incidence of long-term side-effects in these cancer survivors.


Assuntos
Doença de Hodgkin/fisiopatologia , Neoplasias Embrionárias de Células Germinativas/fisiopatologia , Sobreviventes , Adulto , Doença de Hodgkin/mortalidade , Humanos , Neoplasias Embrionárias de Células Germinativas/mortalidade , Segunda Neoplasia Primária/fisiopatologia , Qualidade de Vida , Adulto Jovem
8.
Biomed Eng Online ; 16(1): 48, 2017 Apr 20.
Artigo em Inglês | MEDLINE | ID: mdl-28427408

RESUMO

BACKGROUND: Gravity is omnipresent on Earth; however, humans in space, such as astronauts at the International Space Station, experience microgravity. Long-term exposure to microgravity is considered to elicit physiological changes, such as muscle atrophy, in the human body. In addition, certain types of cancer cells demonstrate inhibited proliferation under condition of time-averaged simulated microgravity (taSMG). However, the response of human Hodgkin's lymphoma cancer cells to reduced gravity, and the associated physiological changes in these cells, have not been elucidated. METHODS: In this study, the proliferation of human Hodgkin's lymphoma cancer cells (L-540 and HDLM-2) under taSMG condition (<10-3 G, 1 G is defined as 9.8 m/s2) was studied using a 3D clinostat. Normal human dermal fibroblast (HDF) was proliferated in the same condition as a control group. For the development of 3D clinostat, two motors were used to actuate the frames. Electrical wires for power supply and communication were connected via slip ring. For symmetrical path of gravitational vector, optimal angular velocities of the motors were found using simulation results. Under the condition of taSMG implemented by the 3D clinostat, proliferation of the cells was observed for 3 days. RESULTS: The results indicated that proliferation of these cancer cells was significantly (p < 0.0005) inhibited under taSMG, whereas proliferation of normal HDF cells was not affected. CONCLUSIONS: Findings in this study could be significantly valuable in developing novel strategies for selective killing of cancer cells such as lymphoma.


Assuntos
Proliferação de Células , Doença de Hodgkin/patologia , Doença de Hodgkin/fisiopatologia , Simulação de Ausência de Peso/instrumentação , Simulação de Ausência de Peso/métodos , Ausência de Peso , Apoptose , Reatores Biológicos , Linhagem Celular Tumoral , Desenho de Equipamento , Análise de Falha de Equipamento , Humanos , Rotação
9.
Br J Cancer ; 115(2): 178-87, 2016 07 12.
Artigo em Inglês | MEDLINE | ID: mdl-27351215

RESUMO

BACKGROUND: Cardiorespiratory fitness as measured by peak oxygen consumption (VO2peak) is a strong predictor of longevity and may be compromised by anticancer therapy, inactivity, and smoking. We compared VO2peak among lymphoma survivors (LSs) with reference data from healthy sedentary subjects, after a 10.2-year (mean) follow-up post high-dose chemotherapy with autologous stem cell transplantation (HDT-ASCT). We further examined the association between VO2peak and treatment, physical activity, smoking, pulmonary, and cardiac function. METHODS: Lymphoma survivors treated with HDT-ASCT in Norway 1987-2008 were eligible. VO2peak was assessed by cardiopulmonary exercise testing. Pulmonary function testing and echocardiography were also conducted. Data on treatment, physical activity, and smoking were collected from hospital records and questionnaires. VO2peak was compared with age-sex predicted reference data. Linear regression was used to associate clinical factors with VO2peak cross-sectionally. RESULTS: A total of 194 LSs without heart failure were studied. Mean VO2peak was 4.5% and 7.7% below norms in females and males, respectively. Twenty-two percent had impaired (<80% predicted) VO2peak. Decreasing VO2peak was associated with impaired diffusion capacity and current smoking, while physical activity level and VO2peak were positively associated. CONCLUSION: We suggest increased attention towards physical activity counseling and smoking cessation advice to preserve cardiorespiratory fitness in LSs after HDT-ASCT. Patients with impaired diffusion capacity may benefit from subsequent monitoring to detect pulmonary vascular diseases.


Assuntos
Antineoplásicos/administração & dosagem , Aptidão Cardiorrespiratória , Transplante de Células-Tronco Hematopoéticas , Doença de Hodgkin/terapia , Linfoma não Hodgkin/terapia , Sobreviventes , Adulto , Relação Dose-Resposta a Droga , Feminino , Doença de Hodgkin/tratamento farmacológico , Doença de Hodgkin/fisiopatologia , Humanos , Linfoma não Hodgkin/tratamento farmacológico , Linfoma não Hodgkin/fisiopatologia , Masculino , Pessoa de Meia-Idade
10.
Clin Exp Immunol ; 183(2): 206-20, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26422112

RESUMO

In 40% of cases of classical Hodgkin lymphoma (cHL), Epstein-Barr virus (EBV) latency-II antigens [EBV nuclear antigen 1 (EBNA1)/latent membrane protein (LMP)1/LMP2A] are present (EBV(+) cHL) in the malignant cells and antigen presentation is intact. Previous studies have shown consistently that HLA-A*02 is protective in EBV(+) cHL, yet its role in disease pathogenesis is unknown. To explore the basis for this observation, gene expression was assessed in 33 cHL nodes. Interestingly, CD8 and LMP2A expression were correlated strongly and, for a given LMP2A level, CD8 was elevated markedly in HLA-A*02(-) versus HLA-A*02(+) EBV(+) cHL patients, suggesting that LMP2A-specific CD8(+) T cell anti-tumoral immunity may be relatively ineffective in HLA-A*02(-) EBV(+) cHL. To ascertain the impact of HLA class I on EBV latency antigen-specific immunodominance, we used a stepwise functional T cell approach. In newly diagnosed EBV(+) cHL, the magnitude of ex-vivo LMP1/2A-specific CD8(+) T cell responses was elevated in HLA-A*02(+) patients. Furthermore, in a controlled in-vitro assay, LMP2A-specific CD8(+) T cells from healthy HLA-A*02 heterozygotes expanded to a greater extent with HLA-A*02-restricted compared to non-HLA-A*02-restricted cell lines. In an extensive analysis of HLA class I-restricted immunity, immunodominant EBNA3A/3B/3C-specific CD8(+) T cell responses were stimulated by numerous HLA class I molecules, whereas the subdominant LMP1/2A-specific responses were confined largely to HLA-A*02. Our results demonstrate that HLA-A*02 mediates a modest, but none the less stronger, EBV-specific CD8(+) T cell response than non-HLA-A*02 alleles, an effect confined to EBV latency-II antigens. Thus, the protective effect of HLA-A*02 against EBV(+) cHL is not a surrogate association, but reflects the impact of HLA class I on EBV latency-II antigen-specific CD8(+) T cell hierarchies.


Assuntos
Linfócitos T CD8-Positivos/imunologia , Antígeno HLA-A2/imunologia , Herpesvirus Humano 4/imunologia , Herpesvirus Humano 4/isolamento & purificação , Doença de Hodgkin/imunologia , Doença de Hodgkin/virologia , Proteínas da Matriz Viral/imunologia , Adolescente , Adulto , Idoso , Apresentação de Antígeno , Linfócitos T CD8-Positivos/virologia , Feminino , Genes MHC Classe I , Antígeno HLA-A2/genética , Herpesvirus Humano 4/genética , Doença de Hodgkin/genética , Doença de Hodgkin/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Proteínas da Matriz Viral/genética , Adulto Jovem
11.
Cell Immunol ; 302: 41-49, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26877250

RESUMO

Spontaneously occurring lymphomas in SJL mice have many pathological features similar to Hodgkin's lymphoma in humans. The malignant growth of the tumor cells is dependent on the support of host FoxP3(+)CD4(+) regulatory T cells (Tregs). In this study, we report that the ablation of golli protein, a negative regulator of CRAC (calcium release activated calcium) channel, in SJL mice results in an accelerated progression of Hodgkin's-like lymphoma which is accompanied by a facilitated conversion of FoxP3(+) Treg cells. Our results suggest that golli protein might affect the progression of Hodgkin's-like lymphomas through regulating the induction of Treg cells.


Assuntos
Doença de Hodgkin/fisiopatologia , Linfócitos T Reguladores/citologia , Animais , Canais de Cálcio/genética , Canais de Cálcio/metabolismo , Progressão da Doença , Técnicas de Inativação de Genes , Doença de Hodgkin/genética , Interleucina-10/metabolismo , Camundongos , Proteína Básica da Mielina/deficiência , Proteína Básica da Mielina/genética , Linfócitos T Reguladores/metabolismo , Regulação para Cima
12.
Intern Med J ; 46(12): 1364-1369, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26929077

RESUMO

The majority of patients with Hodgkin lymphoma enjoy durable remissions following front-line treatment. This typically involves combination chemotherapy with or without radiotherapy. A significant minority of patients experience relapsed/refractory disease, of whom only approximately half can be 'salvaged' with conventional second-line treatments. Until recently, for those patients either failing or who are not fit for salvage, there have been few curative alternatives. Furthermore, there is a significant risk of delayed treatment complications to conventional therapies, including secondary malignancies and cardiac disease. However, novel targeted therapies are producing excellent results in clinical trials. They provide additional treatment options for those with relapsing/refractory disease; they may have potential in front-line therapy. The anti-CD30 antibody brentuximab vedotin (BV) has been tested as monotherapy and in combination in a variety of clinical settings, including in relapsed/refractory patients and as consolidative therapy following standard second-line therapy. Nivolumab and pembrolizumab, currently used in other malignancies that are known to utilise the programmed death pathway for survival, have shown outstanding results when used as single agents in heavily pre-treated (including BV refractory) patients. Individualising and adapting a patient's treatment course, whether augmenting or rationalising therapy, based on an interim positron emission tomography/computed tomography response is an important strategy currently under exploration to minimise toxicity while maximising response. Further work is needed to explore clinical and biological factors associated with improved outcomes. Knowledge of these factors combined with the movement of novel therapies into the front-line setting will enable individualised therapy to enhance clinical responses and minimise toxicities.


Assuntos
Antineoplásicos/uso terapêutico , Doença de Hodgkin/terapia , Imunoconjugados/administração & dosagem , Imunoterapia/métodos , Terapia de Alvo Molecular/métodos , Recidiva Local de Neoplasia/prevenção & controle , Terapia de Salvação/métodos , Anticorpos Monoclonais , Protocolos de Quimioterapia Combinada Antineoplásica , Brentuximab Vedotin , Doença de Hodgkin/imunologia , Doença de Hodgkin/fisiopatologia , Humanos , Imunoconjugados/uso terapêutico , Antígeno Ki-1 , Terapia de Alvo Molecular/tendências , Tomografia por Emissão de Pósitrons , Radioterapia Adjuvante , Indução de Remissão , Terapia de Salvação/tendências
13.
J Ayub Med Coll Abbottabad ; 28(2): 289-292, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-28718544

RESUMO

BACKGROUND: Chemotherapy consisting of Adriamycin, Bleomycin, Vinblastine, and Doxorubicin (ABVD), which is the mainstay of treatment in Hodgkin's Lymphoma (HL), is associated with both acute and long-term pulmonary toxicity primarily due to Bleomycin. Bleomycin induced pulmonary toxicity (BPT) is clinically detected using diffusing lung capacity for carbon monoxide (DLCO). The objective of this study was to evaluate changes in DLCO in HL patients before and after ABVD chemotherapy. METHODS: Medical records of all adult HL patients treated with ABVD chemotherapy at a single centre in Lahore, Pakistan during the entire calendar year 2012 were analysed. Patients with pre-existing pulmonary dysfunction, history of thoracic surgery and smokers were excluded. RESULTS: A total of 179 HL patients were identified during the study period who received ABVD chemotherapy. Out of these, 93 (51.95%) patients had undergone both a pre- and post-chemotherapy DLCO measurements. The remaining patients had only one DLCO reading available and were not included in the analysis. The mean percentage difference between pre- and post-chemotherapy values for DLCO (5.49%; 95% confidence interval [CI] 1.56-9.43%) and for Haemoglobin-adjusted DLCO (8.24%; 95% CI 3.90-12.57%) were statistically significant at p<0.01. Diffusing lung capacity for carbon (DLCO) values declined from pre-treatment to post-treatment by 1-10% in 23 (24.7%) patients, by 10-20% in 19 (20.4%) patients, by 20-30% in 10 (10.8%) patients and >30% in 10 (10.8%) patients. After adjusting for age, a 1mg/m2 increase in dose of Bleomycin was significantly associated with 0.14% (95% CI: 0.03-0.25%) decline in DLCO and 0.13% (95% CI: 0.10-0.26%) decline in haemoglobin-adjusted DLCO from pre-treatment value. CONCLUSIONS: Mild to moderate dysfunction in diffusion lung capacity is common after ABVD chemotherapy. DLCO and haemoglobin-adjusted DLCO value decreased with increasing age and increasing dose of Bleomycin.


Assuntos
Antineoplásicos/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Doença de Hodgkin , Adulto , Bleomicina/uso terapêutico , Estudos de Coortes , Dacarbazina/uso terapêutico , Doxorrubicina/uso terapêutico , Feminino , Doença de Hodgkin/tratamento farmacológico , Doença de Hodgkin/epidemiologia , Doença de Hodgkin/fisiopatologia , Humanos , Medidas de Volume Pulmonar , Masculino , Vimblastina/uso terapêutico , Adulto Jovem
14.
FASEB J ; 28(2): 524-35, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24196588

RESUMO

Autophagy represents a key mechanism of cytoprotection that can be activated by a variety of extracellular and intracellular stresses and allows the cell to sequester cytoplasmic components and damaged organelles, delivering them to lysosomes for degradation and recycling. However, the autophagy process has also been associated with the death of the cell. It has been demonstrated to be constitutive in some instances and inducible in others, and the idea that it could represent a pathogenetic determinant as well as a possible prognostic tool and a therapeutic target in a plethora of human diseases has recently been considered. Among these, cancer represents a major one. In this review, we recapitulate the critical implications of autophagy in the pathogenesis, progression, and treatment of lymphoproliferative disorders. Leukemias and lymphomas, in fact, represent paradigmatic human diseases in which advances have recently been made in this respect.


Assuntos
Autofagia/fisiologia , Transtornos Linfoproliferativos/fisiopatologia , Animais , Doença de Hodgkin/fisiopatologia , Humanos , Linfócitos/fisiologia , Linfoma não Hodgkin/fisiopatologia
15.
J Assist Reprod Genet ; 32(8): 1187-93, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25724588

RESUMO

PURPOSE: Aim of this prospective observational study was to analyze fertility status of Hodgkin lymphoma (HL) patients treated with different types of chemotherapy while receiving GnRH analogues to preserve ovarian function. METHODS: Fertility status was assessed among 108 females in reproductive age treated by curative chemotherapy for freshly diagnosed HL between 2005 and 2010 in university-based tertiary fertility and oncology center. All patients received GnRH analogues during chemotherapy to preserve their ovarian function. Their reproductive functions were assessed by follicle-stimulating hormone (FSH) measurement and pregnancy achievement. Ovarian function was determined separately in three groups with increasing gonadotoxicity of chemotherapy. RESULTS: One year following the treatment, normal ovarian function was found in 89 (82.4%) of patients. Two years after chemotherapy, 98 (90.7%) of patients retained their ovarian function, and 23 (21.3%) achieved clinical pregnancy during the follow-up period. Average FSH after chemotherapy was 11.6 ± 17.9 IU/l 1 year after the treatment resp. 9.0 ± 13.8 at the 2 years interval. There were significantly more patients with chemotherapy induced diminished ovarian reserve (chDOR) among the group receiving escalated BEACOPP chemotherapy in comparison with the other types of treatment (58.1% vs. 87.9% resp. 95.5%). CONCLUSION: The rate of chDOR is significantly higher after EB poly-chemotherapy and there is no tendency for improvement in time. The 2 + 2 chemotherapy with GnRH-a required for more advanced HL retained ovarian function significantly better after 2 years. Another important advantage of GnRH-a co-treatment is the excellent control of patient's menstrual cycle.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Preservação da Fertilidade/métodos , Hormônio Liberador de Gonadotropina/análogos & derivados , Doença de Hodgkin/tratamento farmacológico , Ovário/fisiologia , Adolescente , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Feminino , Hormônio Foliculoestimulante/sangue , Doença de Hodgkin/fisiopatologia , Humanos , Ovário/efeitos dos fármacos , Gravidez , Estudos Prospectivos , Adulto Jovem
16.
Blood ; 119(4): 990-6, 2012 Jan 26.
Artigo em Inglês | MEDLINE | ID: mdl-22147892

RESUMO

In recent decades, attention has focused on reducing long-term, treatment-related morbidity and mortality in Hodgkin lymphoma (HL). In the present study, we looked for trends in relative survival for all patients diagnosed with HL in Sweden from 1973-2009 (N = 6949; 3985 men and 2964 women; median age, 45 years) and followed up for death until the end of 2010. Patients were categorized into 6 age groups and 5 calendar periods (1973-1979, 1980-1986, 1987-1994, 1994-2000, and 2001-2009). Relative survival improved in all age groups, with the greatest improvement in patients 51-65 years of age (P < .0005). A plateau in relative survival was observed in patients below 65 years of age during the last calendar period, suggesting a reduced long-term, treatment-related mortality. The 10-year relative survival for patients diagnosed in 2000-2009 was 0.95, 0.96, 0.93, 0.80, and 0.44 for the age groups 0-18, 19-35, 36-50, 51-65, and 66-80, respectively. Therefore, despite progress, age at diagnosis remains an important prognostic factor (P < .0005). Advances in therapy for patients with limited and advanced-stage HL have contributed to an increasing cure rate. In addition, our findings support that long-term mortality of HL therapy has decreased. Elderly HL patients still do poorly, and targeted treatment options associated with fewer side effects will advance the clinical HL field.


Assuntos
Doença de Hodgkin/terapia , Adolescente , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Feminino , Seguimentos , Doença de Hodgkin/diagnóstico , Doença de Hodgkin/mortalidade , Doença de Hodgkin/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Sistema de Registros , Índice de Gravidade de Doença , Transplante de Células-Tronco/tendências , Análise de Sobrevida , Suécia , Adulto Jovem
17.
Hum Reprod ; 29(3): 525-33, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24345581

RESUMO

STUDY QUESTION: How does the successful cryopreservation of semen affect the odds of post-treatment fatherhood among Hodgkin lymphoma (HL) survivors? SUMMARY ANSWER: Among 334 survivors who wanted to have children, the availability of cryopreserved semen doubled the odds of post-treatment fatherhood. WHAT IS KNOWN ALREADY: Cryopreservation of semen is the easiest, safest and most accessible way to safeguard fertility in male patients facing cancer treatment. Little is known about what proportion of patients achieve successful semen cryopreservation. To our knowledge, neither the factors which influence the occurrence of semen cryopreservation nor the rates of fatherhood after semen has been cryopreserved have been analysed before. STUDY DESIGN, SIZE, DURATION: This is a cohort study with nested case-control analyses of consecutive Hodgkin survivors treated between 1974 and 2004 in multi-centre randomized controlled trials. A written questionnaire was developed and sent to 1849 male survivors. PARTICIPANTS/MATERIALS, SETTING, METHODS: Nine hundred and two survivors provided analysable answers. The median age at treatment was 31 years. The median follow-up after cryopreservation was 13 years (range 5-36). MAIN RESULTS AND THE ROLE OF CHANCE: Three hundred and sixty-three out of 902 men (40%) cryopreserved semen before the start of potentially gonadotoxic treatment. The likelihood of semen cryopreservation was influenced by age, treatment period, disease stage, treatment modality and education level. Seventy eight of 363 men (21%) used their cryopreserved semen. Men treated between 1994 and 2004 had significantly lower odds of cryopreserved semen use compared with those treated earlier, whereas alkylating or second-line (chemo)therapy significantly increased the odds of use; no other influencing factors were identified. We found an adjusted odds ratio of 2.03 (95% confidence interval 1.11-3.73, P = 0.02) for post-treatment fatherhood if semen cryopreservation was performed. Forty-eight out of 258 men (19%) who had children after HL treatment became a father using cryopreserved semen. LIMITATIONS, REASONS FOR CAUTION: Data came from questionnaires and so this study potentially suffers from response bias. We could not perform an analysis with correction for duration of follow-up or provide an actuarial use rate due to lack of dates of semen utilization. We do not have detailed information on either the techniques used in cryopreserved semen utilization or the number of cycles needed. STUDY FUNDING/COMPETING INTERESTS: Lance Armstrong Foundation, Dutch Cancer Foundation, René Vogels Stichting, no competing interests.


Assuntos
Criopreservação , Fertilidade , Doença de Hodgkin/terapia , Preservação do Sêmen , Sêmen , Adolescente , Adulto , Fatores Etários , Idoso , Criança , Estudos de Coortes , Doença de Hodgkin/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Sobreviventes
18.
Ann Hematol ; 93(3): 411-24, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23963412

RESUMO

Fatigue is a common and distressing symptom in cancer patients, especially in lymphoma patients. One hypothesized mechanism in the etiology of fatigue is a vicious circle between fatigue, physical inactivity, and deconditioning. However, the natural evolution of physical activity and physical fitness over the course of treatment is unknown. Therefore, the aim of this longitudinal study was to assess fatigue, physical activity, and physical fitness in lymphoma patients before, during, and after treatment. Fatigue was measured with the EORTC-QLQ-C30, physical activity with an accelerometer, and physical fitness with a maximal incremental cycle ergometer test, 6-min walking distance test, and muscle strength measurements. Differences between the three measurement moments and baseline differences between Hodgkin lymphoma and non-Hodgkin lymphoma, early and advanced disease, were analyzed. Twenty-nine patients were included. Functional exercise capacity and quadriceps force were impaired before the start of treatment (86 ± 15 and 82 ± 16 % of predicted value, respectively). Over the course of treatment, significant declines were found in hemoglobin, quadriceps force, handgrip force, and maximal oxygen uptake, while patients reported more fatigue (p values < 0.016). Fatigue was significantly correlated with hemoglobin (r = -0.49), physical activity (r = 0.81), and physical functioning (r = -0.44). Large interindividual variations were found. The present study partially confirmed the hypothesized vicious circle between fatigue, physical inactivity, and deconditioning. Further research with larger samples and longer follow-up is needed to identify factors associated with individual variation in the evolution of fatigue, physical activity, and physical fitness.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Fadiga/prevenção & controle , Doença de Hodgkin/tratamento farmacológico , Linfoma não Hodgkin/tratamento farmacológico , Atividade Motora , Aptidão Física , Acelerometria , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Teste de Esforço , Tolerância ao Exercício/efeitos dos fármacos , Fadiga/induzido quimicamente , Fadiga/etiologia , Feminino , Doença de Hodgkin/patologia , Doença de Hodgkin/fisiopatologia , Humanos , Estudos Longitudinais , Linfoma não Hodgkin/patologia , Linfoma não Hodgkin/fisiopatologia , Masculino , Pessoa de Meia-Idade , Força Muscular/efeitos dos fármacos , Estadiamento de Neoplasias , Qualidade de Vida , Inquéritos e Questionários
19.
Pediatr Blood Cancer ; 61(7): 1277-81, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24482138

RESUMO

BACKGROUND: Abnormalities in pulmonary function tests (PFT) and clinical symptoms have been reported in up to one third of patients with Hodgkin lymphoma (HL) treated with irradiation. The purpose of this study is to describe the prevalence of pulmonary complications in HL patients treated using contemporary protocols. PROCEDURES: Eligible patients at Children's Hospital Los Angeles from 1999 to 2009 were identified from the radiation oncology database. Clinical features, radiographic findings, PFT, and radiation details were retrospectively ascertained. RESULTS: The median age at diagnosis of 65 patients with HL was 13.6 years and the median follow-up was 3.7 years. The median prescribed radiation dose was 21 Gy. The prevalence of clinical symptoms was low: chronic cough (3%), dyspnea (9.2%), and supplemental oxygen requirement (1.5%). Radiological interstitial lung changes were observed in 31% of the patients. PFT results following irradiation were available in 38 patients. Forced expiratory volume in 1 second (FEV1) and forced expiratory flow 25-75% (FEF25-75%) were decreased in 13% and 11% of patients respectively. Residual volume (RV) was elevated in 21%. Total Lung capacity (TLC) was decreased in 8%. Age at irradiation (P = 0.004), maximum lung dose (P = 0.03), and volume of lung receiving >25 Gy were associated with development of adverse pulmonary outcomes on univariate analysis. On multivariate analysis, older age was associated with worse outcomes. CONCLUSION: In survivors of pediatric HL, involved field irradiation was accompanied by a low prevalence of pulmonary symptoms but substantial subclinical dysfunction. Older age at irradiation was associated with worse pulmonary outcomes.


Assuntos
Tosse , Bases de Dados Factuais , Dispneia , Doença de Hodgkin , Pneumopatias , Pulmão/fisiopatologia , Adolescente , Adulto , Fatores Etários , Criança , Pré-Escolar , Tosse/etiologia , Tosse/fisiopatologia , Dispneia/etiologia , Dispneia/fisiopatologia , Feminino , Seguimentos , Volume Expiratório Forçado , Doença de Hodgkin/fisiopatologia , Doença de Hodgkin/radioterapia , Humanos , Lactente , Recém-Nascido , Pneumopatias/etiologia , Pneumopatias/fisiopatologia , Masculino , Prevalência , Dosagem Radioterapêutica , Estudos Retrospectivos
20.
Acta Haematol ; 131(4): 227-30, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24335335

RESUMO

We report the development of hypothermia in a patient with Hodgkin lymphoma which resolved with chemotherapy administration. A review of the literature revealed 16 previous reports of hypothermia in patients with Hodgkin lymphoma. Overall prognosis seems to be unfavorable. To the best of our knowledge this is the first report of hypothermia in a patient with Hodgkin lymphoma transforming from chronic lymphocytic leukemia (Richter's syndrome). A possible pathophysiology could be paraneoplastic autonomic neuropathy. Physicians should be aware that Hodgkin lymphoma can present with hypothermia and should carefully monitor newly diagnosed patients with advanced disease for this complication. Likewise, patients with Hodgkin lymphoma who develop hypothermia should be screened for signs of autonomic neuropathy.


Assuntos
Doença de Hodgkin/fisiopatologia , Hipotermia/etiologia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Doenças do Sistema Nervoso Autônomo/etiologia , Doenças do Sistema Nervoso Autônomo/fisiopatologia , Doenças do Sistema Nervoso Autônomo/prevenção & controle , Transformação Celular Neoplásica , Evolução Fatal , Doença de Hodgkin/tratamento farmacológico , Doença de Hodgkin/etiologia , Humanos , Hipotermia/prevenção & controle , Leucemia Linfocítica Crônica de Células B/fisiopatologia , Masculino , Pessoa de Meia-Idade , Polineuropatia Paraneoplásica/etiologia , Polineuropatia Paraneoplásica/fisiopatologia , Polineuropatia Paraneoplásica/prevenção & controle
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