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2.
J Cancer Surviv ; 2023 Oct 16.
Artigo em Inglês | MEDLINE | ID: mdl-37843659

RESUMO

PURPOSE: The purpose of this phenomenological study was to gain an understanding of the intersection of continued treatment and quality of life in women living with metastatic breast cancer (MBC). METHODS: This was a qualitative study in which women with MBC were interviewed about their perceptions how MBC affected their physical, emotional, and role functioning. RESULTS: Participants (n = 16) were mostly Caucasian (86.7%) and non-Hispanic (93.3%). The mean age was 55.62 years. Most women were on their third or greater line of treatment (68.5%). Themes identified from analysis of the transcripts revealed the following: (1) shock and devastation of the initial diagnosis; (2) feeling as if the sharks are circling; (3) cancer is a rollercoaster with never-ending treatments; (4) individual definitions of quality of life; and (5) you are not the person you once were. CONCLUSIONS: Symptoms, ongoing treatments, treatment changes, and disease progression negatively influence physical, emotional, and role function. Women with MBC define quality of life in different ways, and while symptoms and functional limitations are present, the cancer experience causes some to reevaluate their lives and focus on their individual priorities and values. IMPLICATIONS FOR CANCER SURVIVORS: Although newly developed treatments increase survival among women with MBC, the symptoms, concerns, and issues surrounding QOL remain unresolved. The relatively high price of continuous treatment and disease exacerbation is indicative of the need for multi-pronged intervention strategies that address physical, mental, and emotional aspects of living with MBC.

3.
Front Oncol ; 13: 1139347, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37305569

RESUMO

Background: The cardiotoxic effects of doxorubicin, trastuzumab, and other anticancer agents are well known, but molecular genetic testing is lacking for the early identification of patients at risk for therapy-related cardiac toxicity. Methods: Using the Agena Bioscience MassARRAY system, we genotyped TRPC6 rs77679196, BRINP1 rs62568637, LDB2 rs55756123, RAB22A rs707557, intergenic rs4305714, LINC01060 rs7698718, and CBR3 rs1056892 (V244M) (previously associated with either doxorubicin or trastuzumab-related cardiotoxicity in the NCCTG N9831 trial of anthracycline-based chemotherapy ± trastuzumab) in 993 patients with HER2+ early breast cancer from the NSABP B-31 trial of adjuvant anthracycline-based chemotherapy ± trastuzumab. Association analyses were performed with outcomes of congestive heart failure (N = 29) and maximum decline in left ventricular ejection fraction (LVEF) using logistic and linear regression models, respectively, under an additive model with age, baseline LVEF, and previous use of hypertensive medications as covariates. Results: Associations of maximum decline in LVEF in the NCCTG N9831 patients did not replicate in the NSABP B-31 patients. However, TRPC6 rs77679196 and CBR3 rs1056892 were significantly associated with congestive heart failure, p < 0.05, with stronger associations observed in patients treated with chemotherapy only (no trastuzumab) or in the combined analysis of all patients relative to those patients treated with chemotherapy + trastuzumab. Conclusions: TRPC6 rs77679196 and CBR3 rs1056892 (V244M) are associated with doxorubicin-induced cardiac events in both NCCTG N9831 and NSABP B-31. Other variants previously associated with trastuzumab-related decline in LVEF failed to replicate between these studies.

4.
Eur J Radiol ; 162: 110788, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-36948059

RESUMO

PURPOSE: Examine MRI phenotypes of breast cancers arising in patients with various pathogenic variants, to assess for imaging trends and associations. METHOD: Multisite retrospective review evaluated 410 patients from 2001 to 2020 with breast cancer and a predisposing pathogenic variant who underwent breast MRI at time of cancer diagnosis. Dominant malignant lesion features were reported, including lesion type (mass versus non-mass enhancement), size, shape, margin, internal enhancement pattern, plus other features. Kruskal-Wallis test, Fisher's exact test, and pairwise comparisons performed comparing imaging manifestations for the most frequent genetic results. RESULTS: BRCA1 (29.5 %) and BRCA2 (25.9 %) variants were most common, followed by CHEK2 (16.6 %), ATM (8.0 %), and PALB2 (6.3 %), with significant associated differences in race/ethnicity (p = 0.040), age at cancer diagnosis (p = 0.005), tumor shapes (p = 0.001), margins (p < 0.001), grade (p < 0.001), internal enhancement pattern (rim enhancement) (p < 0.001), kinetics (washout) (p < 0.001), and presence of necrosis (p < 0.001). CHEK2 and ATM tumors were often lower grade with spiculated margins (CHEK2: 47.1 %, ATM: 45.5 %), rarely exhibiting washout or tumor necrosis (p < 0.001), and were mostly comprised of luminal molecular subtypes (CHEK2: 88.2 %, ATM: 90.9 %). BRCA1 tumors had the highest proportions with round shape (31.4 %), circumscribed margins (24.0 %), rim enhancement (24.0 %), washout (58.7 %), and necrosis (19.8 %), with 47.9 % comprised of triple negative subtype. Bilateral mastectomy was performed in higher proportions of patients with BRCA1 (84.3 %) and BRCA2 (75.5 %) variants compared to others. CONCLUSIONS: Genetic and molecular profiles of breast cancers demonstrate reproducible MRI phenotypes.


Assuntos
Mastectomia , Neoplasias , Humanos , Estudos Retrospectivos , Fenótipo , Imageamento por Ressonância Magnética , Predisposição Genética para Doença
5.
Am Surg ; 89(12): 5414-5420, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36788122

RESUMO

INTRODUCTION: Contiguous non-mass enhancement (NME) often coexists with a solid tumor component on MRI, but it can be challenging to predict whether NME represents invasive breast cancer, ductal carcinoma in situ (DCIS), benign disease, or biopsy site reaction. The purpose of this study was to determine the association between the size/extent of NME and the presence of invasive cancer and/or DCIS on final pathology. METHODS: This was a single institution retrospective analysis of a prospectively maintained breast cancer registry (2010-2020). Female patients who underwent surgical resection were included if they had a diagnosis of invasive breast cancer (with or without DCIS) and had an MRI showing both a solid mass and contiguous NME. The size of NME on MRI was compared with the size of invasive cancer and/or DCIS on the final pathology. RESULTS: From a total of 3443 patients, 225 patients were included. 86.2% had invasive ductal carcinoma (IDC), and 12.0% had invasive lobular carcinoma 76.9% were ER+, 16.4% were HER2+, and 13.3% were triple negative breast cancer (TNBC). 18.7% received neoadjuvant chemotherapy (NCT) of whom 31% achieved a complete radiographic/pathologic response. Pearson correlation coefficients (r) between the size of NME and invasive cancer/DCIS showed a strong and positive correlation of MRI NME with DCIS on pathology in patients without NCT. Subgroup analysis showed the strongest correlations for NME and DCIS among non-white (r = .70) and HER2 + patients (r = .74) who did not receive NCT. CONCLUSIONS: Strong correlations between NME and DCIS were found for HER2 + disease and non-white patients, but only modest correlations were found for other patient/disease characteristics. These correlations may impact decisions in surgical approach.


Assuntos
Neoplasias da Mama , Carcinoma Ductal de Mama , Carcinoma Intraductal não Infiltrante , Neoplasias de Mama Triplo Negativas , Humanos , Feminino , Carcinoma Intraductal não Infiltrante/cirurgia , Estudos Retrospectivos , Neoplasias da Mama/cirurgia , Mama , Correlação de Dados , Resposta Patológica Completa , Carcinoma Ductal de Mama/cirurgia
6.
J Palliat Med ; 25(10): 1563-1570, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35960820

RESUMO

Background: Thirty-six states, including Florida, have legalized marijuana for medical and/or recreational use, yet how it is used and perceived by persons with cancer is not well understood. Objectives: The purpose of this study was to identify patterns of use, perceived benefits, and side effects of medical marijuana (MMJ) among cancer patients in Florida. Methods: For this descriptive, cross-sectional study, anyone residing within the state of Florida who was diagnosed or treated for a malignancy within the last five years and had used MMJ was eligible. An online survey containing questions about dosing, side effects, perceived benefits, and barriers to use was used. Descriptive statistics including frequencies, percentages, means, and standard deviations were used to analyze quantitative data. Responses to open-ended questions were coded and categorized. Results: Sleep (n = 112), pain (n = 96), and anxiety (n = 82) were the most common symptoms participants used MMJ to relieve and overall felt it was highly effective. MMJ was well tolerated with a minority (10.3%) reporting any adverse effects. Cost was the most frequent barrier reported by participants (42.8%). A variety of legal, bureaucratic, and system-related barriers were described. Conclusion: Participants perceived MMJ to be helpful in alleviating cancer symptoms. They held negative perceptions of the way MMJ is implemented and integrated into their oncology treatment plan. Enhanced communication and patient/provider education on MMJ are needed to inform patient decision making.


Assuntos
Maconha Medicinal , Neoplasias , Ansiedade , Estudos Transversais , Humanos , Maconha Medicinal/uso terapêutico , Neoplasias/tratamento farmacológico , Inquéritos e Questionários
7.
Cancers (Basel) ; 14(12)2022 Jun 18.
Artigo em Inglês | MEDLINE | ID: mdl-35740674

RESUMO

BNCT is a high LET radiation therapy modality that allows for biologically targeted radiation delivery to tumors while reducing normal tissue impacts. Although the clinical use of BNCT has largely been limited to phase I/II trials and has primarily focused on difficult-to-treat malignancies such as recurrent head and neck cancer and recurrent gliomas, recently there has been a renewed interest in expanding the use of BNCT to other disease sites, including breast cancer. Given its high LET characteristics, its biologically targeted and tumor specific nature, as well as its potential for use in complex treatment settings including reirradiation and widespread metastatic disease, BNCT offers several unique advantages over traditional external beam radiation therapy. The two main boron compounds investigated to date in BNCT clinical trials are BSH and BPA. Of these, BPA in particular shows promise in breast cancer given that is taken up by the LAT-1 amino acid transporter that is highly overexpressed in breast cancer cells. As the efficacy of BNCT is directly dependent on the extent of boron accumulation in tumors, extensive preclinical efforts to develop novel boron delivery agents have been undertaken in recent years. Preclinical studies have shown promise in antibody linked boron compounds targeting ER/HER2 receptors, boron encapsulating liposomes, and nanoparticle-based boron delivery systems. This review aims to summarize the physical and biological basis of BNCT, the preclinical and limited clinical data available to date, and discuss its potential to be utilized for the successful treatment of various breast cancer disease states.

8.
Support Care Cancer ; 30(8): 6807-6815, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35527287

RESUMO

BACKGROUND/SIGNIFICANCE: Over 168,000 women are living with metastatic breast cancer (MBC) in the USA. More efficacious treatments have lengthened overall survival, but these treatments often result in a myriad of symptoms and financial burden that may negatively impact perceptions of cancer treatment and medication-taking behavior. PURPOSE: To explore cancer treatment-specific medication beliefs among women undergoing cancer treatment for MBC. METHODS: A qualitative study was conducted using semi-structured interviews that were audio recorded and transcribed verbatim. A thematic analysis was conducted using ATLAS.ti 8.0 software. Inter-rater reliability was set at a threshold of 0.80. Participants were recruited from a National Cancer Institute-designated comprehensive care center. Eligibility included ≥18 years old, English speaking, confirmed MBC diagnosis, and able/willing to complete interviews via telephone or Zoom. RESULTS: Participants (n = 16) were largely Caucasian (86.7%) and non-Hispanic (93.3%). Mean age was 55.62 years. Three major themes were revealed, with corresponding subthemes: (1) positive cancer treatment-specific medication beliefs highlighting the benefit of treatment (relief of cancer-related symptoms and medication efficacy: delayed disease progression/extended survival); (2) negative cancer treatment-specific medication beliefs that caused concern for cancer treatment (medication symptoms, side effects and drug-drug interactions, financial toxicity, lack of guarantee medication would work); and (3) dialectical cancer treatment-specific medication beliefs indicating the benefits of cancer treatment outweigh the risks. CONCLUSION: Overall, participants noted that the benefits of cancer treatment outweighed the risks in the context of metastatic disease. Participants understood their prognosis and that they depended on their cancer treatment for survival. Oncology providers should continue to assess and address medication beliefs over the treatment trajectory and assist MBC patients with the decisional balance between the risk and benefit of continued cancer treatment.


Assuntos
Neoplasias da Mama , Adolescente , Neoplasias da Mama/tratamento farmacológico , Feminino , Humanos , Pessoa de Meia-Idade , Pesquisa Qualitativa , Reprodutibilidade dos Testes
9.
J Clin Med ; 11(2)2022 Jan 12.
Artigo em Inglês | MEDLINE | ID: mdl-35054049

RESUMO

Chemotherapy induced peripheral neuropathy (CIPN) is a dose-limiting side effect of chemotherapy for which no prevention or cure exists. Cancer and cancer treatments can adversely affect nutritional status. Nutrition may play a role in development of CIPN, yet the relationship between nutrition and CIPN is not well understood. Common laboratory values measuring various aspects of nutrition (hemoglobin/hematocrit, vitamin B12, calcium, and magnesium) may be associated with CIPN. The aim of this systematic review is to evaluate the empirical evidence surrounding the relationship between laboratory measures of nutrition and CIPN among persons with cancer who received neurotoxic chemotherapy drugs. We conducted an extensive review of the literature to identify articles that evaluated relationships between laboratory measures of nutrition and CIPN. A total of eleven articles satisfied the inclusion/exclusion criteria. Participants in the studies had breast or colorectal cancer, lymphoma or multiple myeloma and were receiving a variety of neurotoxic drugs. Hemoglobin/hematocrit, vitamin D, albumin, and magnesium were associated with CIPN. The quality of the studies ranges from fair to good. Evidence suggests that low levels of the above-mentioned tests could be associated with CIPN but additional research is needed.

10.
Acad Radiol ; 29(10): 1480-1485, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-35090829

RESUMO

RATIONALE AND OBJECTIVES: Reported incidence of vaccine-induced adenopathy varies widely, with higher estimates in early reports and small series. Objective was to evaluate a large sample of vaccinated patients undergoing screening mammography, to determine callback rates associated with vaccine-induced adenopathy and their outcomes. MATERIALS AND METHODS: Single-institution retrospective review of patients who received at least 1 dose of a COVID-19 vaccine prior to presentation for screening mammography from January 15 through May 31, 2021. Patient-related vaccination information (dose, brand, arm, date) was obtained by mammography technologists and available for interpreting radiologists. Patients recalled for axillary adenopathy were included; other causes for recall were excluded. Follow-up imaging and outcomes were tracked. Wilcoxon rank-sum test, Fisher exact test, multivariable logistic regression modeling, and receiver operating characteristic curve analyses were utilized. All tests were two-sided; p < 0.05 considered statistically significant. RESULTS: Total of 2304 vaccinated patients underwent screening mammography; 24 (1.0%) recalled for ipsilateral adenopathy. There was no significant difference in presence of adenopathy associated with patient age, dose, or brand of vaccine. Presence of adenopathy significantly decreased as days from vaccination increased (p < 0.001). Receiver operating characteristic curve suggested 28.5 days as the best cutoff point to distinguish presence or absence of adenopathy on mammogram. Of 24 callbacks, 13 (54.2%) had benign results, 2 (8.3%) are still undergoing surveillance, and 9 (37.5%) are overdue for subsequent follow-ups. No cases resulted in biopsy or malignancy. CONCLUSION: Low recall rates related to vaccine-induced adenopathy are achievable and can limit unnecessary workups, improve access, and promote flexible timing of vaccinations and screening exams.


Assuntos
Neoplasias da Mama , COVID-19 , Linfadenopatia , Neoplasias da Mama/diagnóstico por imagem , Vacinas contra COVID-19 , Detecção Precoce de Câncer/métodos , Feminino , Humanos , Linfadenopatia/induzido quimicamente , Linfadenopatia/diagnóstico por imagem , Mamografia/métodos , Programas de Rastreamento/métodos
11.
Breast Dis ; 41(1): 75-80, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34487016

RESUMO

INTRODUCTION: Disparities in access to reconstructive surgery after breast cancer have been reported. We aim to evaluate demographic and socioeconomic factors influencing type of autologous breast reconstruction in Florida. METHODS: We queried the Florida Inpatient Discharge Dataset to evaluate disparities in type of autologous breast reconstructive surgery between January 1, 2013, and September 30, 2017. Patients 18 years of age or older were included. Women younger than 65 years old on Medicare were excluded. Patients were categorized into three groups according to type of autologous reconstruction: latissimus dorsi pedicled flap (pedicled flap), free flap, or pedicled flap with implant (combined flap). Demographic and socioeconomic variables were evaluated. 𝜒2 and Mann-Whitney tests were used to estimate statistical significance. A multivariate logistic regression was performed to find independent associations. RESULTS: Our results showed higher odds of reconstruction with free flap in Hispanic patients (odds ratio (OR), 1.66; 95% CI, 1.32-2.09; P < 0.0001) and patients with comorbidities (OR, 1.45; 95% CI, 1.23-1.71; P < 0.0001). However, patients treated in Central and South Florida were less likely to undergo free flap than combined and pedicled flap reconstructions compared with those treated in North Florida (P < 0.05). Patients insured by Medicaid and Medicare were less likely to undergo free flap than combined or pedicled flap reconstruction compared to patients with private insurance (P < 0.05). CONCLUSIONS: Our study identified that race, region, insurance, and comorbidity are factors associated with type of autologous breast reconstruction in Florida.


Assuntos
Disparidades em Assistência à Saúde/estatística & dados numéricos , Mamoplastia/normas , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias da Mama/cirurgia , Feminino , Florida , Disparidades em Assistência à Saúde/etnologia , Disparidades em Assistência à Saúde/normas , Humanos , Mamoplastia/estatística & dados numéricos , Pessoa de Meia-Idade , Complicações Pós-Operatórias , Estudos Retrospectivos , Adulto Jovem
12.
J Oncol Pharm Pract ; 28(2): 425-433, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33719723

RESUMO

OBJECTIVE: Outcomes in multiple myeloma (MM) have significantly improved necessitating focus on survivorship. METHODS: We undertook a web-based survey in collaboration with International Myeloma Foundation (IMF) to explore patient awareness and psycho-physical impacts of MM. The survey was viewed on the IMF website by 1,324 individuals from 32 countries. RESULTS: The survey responses were available from 959 individuals, with 62% who completed the survey. Treating doctors were the most frequent source of MM-related information. Only 56% patients admitted full compliance with treatment. Treatment side effects bothered 86% responders, including >50% admitting to pain, peripheral neuropathy and asthenia. Majority (57%) reported some degree of depression, 82% had discontent with their quality of life and only 35% reported being satisfied with their coping mechanisms. Patients ≥65 years of age reported more peripheral neuropathy (p = 0.007) and difficulty with ability to work (p = 0.015). CONCLUSIONS: We report the prevalence of psychologic, social and physical domains as well as patient-physician relationship dynamics. This knowledge can help improve MM survivorship.Introduction.


Assuntos
Mieloma Múltiplo , Humanos , Internet , Mieloma Múltiplo/terapia , Estudos Prospectivos , Qualidade de Vida , Inquéritos e Questionários
13.
Mayo Clin Proc Innov Qual Outcomes ; 6(2): 120-125, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-34926993

RESUMO

OBJECTIVE: To evaluate the magnitude of humoral response to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) messenger RNA (mRNA) vaccines in patients with cancer receiving active therapies. PATIENTS AND METHODS: Patients 18 years or older in whom SARS-CoV-2 spike antibody (anti-S Ab) levels were measured after 2 doses of SARS-CoV-2 mRNA vaccines were included. Patients with prior coronavirus disease 2019 (COVID-19) infection or receiving other immunosuppressive therapy were excluded. RESULTS: Among 201 patients who met the criteria, 61 were immunocompetent, 91 had a hematologic malignancy, and 49 had a solid malignancy while receiving treatments associated with cytopenia, including chemotherapy or cyclin-dependent kinase 4 and 6 inhibitors. A significantly greater proportion of immunocompetent patients (96.7% [59 of 61]) had anti-S Ab titers of 500 U/mL or greater compared to patients with hematologic (7.7% [7 of 91) and solid (55.1% [27 of 49]) malignancy (P<.001). Despite 2 doses of SARS-CoV-2 mRNA vaccines, 52.7% of patients with hematologic malignancy (48 of 91) and 8.2% of those with solid malignancy (4 of 49) receiving cytopenic therapy had no seroconversion (spike antibody titers <0.8 U/mL). Two patients subsequently had development of breakthrough COVID-19 infection after full vaccination. CONCLUSION: A substantial proportion of patients with hematologic and solid malignancies receiving chemotherapies and CDK4/6i had poor humoral responses after SARS-CoV-2 mRNA vaccination. Our study adds to a growing body of literature suggesting that immunosuppressed patients have a suboptimal humoral response to COVID-19 vaccination. Our study also underscores the importance of assessing antibody response after COVID-19 vaccines in these vulnerable patients.

14.
J Clin Med ; 10(18)2021 Sep 09.
Artigo em Inglês | MEDLINE | ID: mdl-34575190

RESUMO

Anthracyclines are one of the most widely used and effective chemotherapies in oncology, but their most important side effect is the cumulative, dose-related cardiotoxicity leading to congestive heart failure in ~5% of individuals. Methodology and pharmacogenetic studies for predicting which individuals are at high risk and subsequently the development of targeted and individualized cardioprotective plans are beginning to make progress. Here, we review current putative risk genes and variants, the strength of evidence for each genetic association and the interaction between risk genes, in the context of known clinical risk factors and potential novel cardioprotective strategies.

15.
Front Oncol ; 11: 726785, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34504802

RESUMO

Alpelisib is a PIK3a inhibitor approved for the treatment of metastatic ER+ breast cancer in combination with fulvestrant. Although rash is a common side effect of this medication, we present the first case of drug reaction with eosinophilia and systemic symptoms (DRESS) upon initial exposure to alpelisib. Here we describe the clinical-pathological findings and management of our patient with alpelisib-induced life-threatening DRESS syndrome. The goal of this case report is to highlight association of alpelisib with DRESS syndrome, in clinical practice, so that alpelisib can be immediately stopped and treatment for this serious condition promptly initiated.

16.
Ann Nucl Med ; 35(11): 1264-1269, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34463888

RESUMO

BACKGROUND: mRNA COVID-19 vaccines are known to provide an immune response seen on FDG PET studies. However, the time course of this metabolic response is unknown. We here present a temporal metabolic response to mRNA COVID-19 vaccination in oncology patients undergoing standard of care FDG PET. METHODS: 262 oncology patients undergoing standard of care FDG PET were included in the analysis. 231 patients had at least one dose of mRNA COVID-19 vaccine while 31 patients had not been vaccinated. The SUVmax of the lymph nodes ipsilateral to the vaccination was compared to the contralateral to obtain an absolute change in SUVmax (ΔSUVmax). RESULTS: ΔSUVmax was more significant at shorter times between FDG PET imaging and COVID-19 mRNA vaccination, with a median ΔSUVmax of 2.6 (0-7 days), 0.8 (8-14 days), and 0.3 (> 14 days), respectively. CONCLUSION: Consideration should be given to performing FDG PET at least 2 weeks after the COVID-19 vaccine.


Assuntos
Vacinas contra COVID-19/imunologia , Neoplasias/imunologia , Neoplasias/metabolismo , Vacinas Sintéticas/imunologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Axila , COVID-19/prevenção & controle , Vacinas contra COVID-19/administração & dosagem , Feminino , Fluordesoxiglucose F18/metabolismo , Humanos , Linfonodos/diagnóstico por imagem , Linfonodos/imunologia , Linfonodos/metabolismo , Masculino , Pessoa de Meia-Idade , Músculos Peitorais , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Fatores de Tempo , Vacinas Sintéticas/administração & dosagem , Vacinas de mRNA
18.
Front Cardiovasc Med ; 7: 142, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32903434

RESUMO

Background: Our previous GWAS identified genetic variants at six novel loci that were associated with a decline in left ventricular ejection fraction (LVEF), p < 1 × 10-5 in 1,191 early breast cancer patients from the N9831 clinical trial of chemotherapy plus trastuzumab. In this study we sought replication of these loci. Methods: We tested the top loci from the GWAS for association with chemotherapy-related heart failure (CRHF) using 26 CRHF cases from N9831 and 984 patients from the Mayo Clinic Biobank which included CRHF cases (N = 12) and control groups of patients treated with anthracycline +/- trastuzumab without HF (N = 282) and patients with HF that were never treated with anthracycline or trastuzumab (N = 690). We further examined associated loci in the context of gene expression and rare coding variants using a TWAS approach in heart left ventricle and Sanger sequencing, respectively. Doxorubicin-induced apoptosis and cardiomyopathy was modeled in human iPSC-derived cardiomyocytes and endothelial cells and a mouse model, respectively, that were pre-treated with GsMTx-4, an inhibitor of TRPC6. Results: TRPC6 5' flanking variant rs57242572-T was significantly more frequent in cases compared to controls, p = 0.031, and rs61918162-T showed a trend for association, p = 0.065. The rs61918162 T-allele was associated with higher TRPC6 expression in the heart left ventricle. We identified a single TRPC6 rare missense variant (rs767086724, N338S, prevalence 0.0025% in GnomAD) in one of 38 patients (2.6%) with CRHF. Pre-treatment of cardiomyocytes and endothelial cells with GsMTx4 significantly reduced doxorubicin-induced apoptosis. Similarly, mice treated with GsMTx4 had significantly improved doxorubicin-induced cardiac dysfunction. Conclusions: Genetic variants that are associated with increased TRPC6 expression in the heart and rare TRPC6 missense variants may be clinically useful as risk factors for CRHF. GsMTx-4 may be a cardioprotective agent in patients with TRPC6 risk variants. Replication of the genetic associations in larger well-characterized samples and functional studies are required.

19.
Breast Dis ; 39(3-4): 119-126, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32390594

RESUMO

BACKGROUND: Paget's disease of the breast is rare. The National Cancer Database (NCDB) is one of the largest tumor databases in the United States. METHODS: We queried the NCDB to identify male and female patients with Paget's disease of the breast who were treated from January 1, 2004, through December 31, 2015. No age limitations were applied. Descriptive statistical analysis and survival analysis were performed. RESULTS: We analyzed the demographic, disease, and treatment characteristics of 7,191 patients with Paget's disease of the breast. The median (range) age was 64 (20-90) years. Only 2.1% of patients were men, and 85.4% were white. The most common treatment was complete mastectomy (65.3%), followed by partial mastectomy (30.3%). Tumor destruction was performed in 0.1% of patients, and 4.3% of patients did not undergo any surgery. We examined survival in the subset of 6,864 patients who were treated surgically with complete mastectomy or partial mastectomy. The 5-year survival rate after surgery was 82.5% (95% CI, 81.1%-83.9%). Factors associated with shorter survival were older age, black race/ethnicity, higher tumor grade, regional lymph node metastasis, higher cancer stage, metastatic cancer, and larger tumor size. CONCLUSIONS: Paget's disease of the breast usually affects patients older than 60 years, and the most common treatment is complete mastectomy. The 5-year overall survival rate of patients with Paget's disease of the breast is greater than 80% but is lower among older and black people.


Assuntos
Neoplasias da Mama/epidemiologia , Doença de Paget Mamária/epidemiologia , Doença de Paget Mamária/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias da Mama/classificação , Neoplasias da Mama/cirurgia , Neoplasias da Mama Masculina/classificação , Neoplasias da Mama Masculina/epidemiologia , Neoplasias da Mama Masculina/cirurgia , Feminino , Humanos , Masculino , Mastectomia , Pessoa de Meia-Idade , Neoplasias , Doença de Paget Mamária/mortalidade , Doença de Paget Mamária/terapia , Estudos Retrospectivos , Taxa de Sobrevida , Estados Unidos/epidemiologia , Adulto Jovem
20.
Hematol Oncol Stem Cell Ther ; 12(4): 179-188, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31158330

RESUMO

Waldenström's macroglobulinemia (WM) is a rare, incurable hematologic disorder with a relatively indolent course in a majority of the patients. Despite this, a significant proportion of patients require treatment because of hypersecretion of immunoglobulin M and the invasion of bone marrow and peripheral organs by neoplastic lymphoplasmacytic lymphoma cells. Historically, there has been a dearth of research and therapeutic advancements in the field of WM, with most understanding based on other, related B-cell lymphoid malignancies, including multiple myeloma, chronic lymphocytic leukemia, and non-Hodgkin lymphoma. Recently, there has been an increase in dedicated work to better explain the pathobiology of WM, which has identified several clinical and genetic markers that serve to prognosticate disease course and patient outcomes. Furthermore, this has led to dedicated clinical trials and the development of novel drugs/regimens including the first Food and Drug Administration-approved agent for this diagnosis, ibrutinib. This review aims to document some of the recent advancements with respect to prognostic markers and therapeutic options for patients with WM, as well as certain selected novel treatments with unique mechanisms of action, that are currently under development.


Assuntos
Leucemia Linfocítica Crônica de Células B , Linfoma não Hodgkin , Pirazóis/uso terapêutico , Pirimidinas/uso terapêutico , Macroglobulinemia de Waldenstrom , Adenina/análogos & derivados , Medula Óssea/metabolismo , Medula Óssea/patologia , Humanos , Leucemia Linfocítica Crônica de Células B/tratamento farmacológico , Leucemia Linfocítica Crônica de Células B/metabolismo , Leucemia Linfocítica Crônica de Células B/patologia , Linfoma não Hodgkin/diagnóstico , Linfoma não Hodgkin/tratamento farmacológico , Linfoma não Hodgkin/metabolismo , Linfoma não Hodgkin/patologia , Piperidinas , Prognóstico , Macroglobulinemia de Waldenstrom/diagnóstico , Macroglobulinemia de Waldenstrom/tratamento farmacológico , Macroglobulinemia de Waldenstrom/metabolismo , Macroglobulinemia de Waldenstrom/patologia
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