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1.
Eur J Case Rep Intern Med ; 11(5): 004370, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38715877

RESUMO

Background: Autoimmune diseases are not contraindications for immune checkpoint inhibitors (ICI) therapy in patients with cancer. However, immune-related adverse events (irAEs) are frequently observed in patients receiving ICIs including dermatitis, thyroiditis, colitis, and pneumonitis. Thrombocytopenic purpura, aplasia, and haemophagocytic lymphohistiocytosis (HLH) are rarely observed during ICIs. Case description: We report the case of a male patient with pre-existing untreated HLA B27 and ankylosing spondylitis with gastric cancer and liver metastases. The 79-year-old man was treated with anti-HER2 trastuzumab and anti-PD-1 nivolumab. Seventeen days after the seventh cycle of treatment, he presented at the emergency department with acute fever, confusion, and hypotension. Laboratory results showed pancytopenia, and elevation of ferritin and triglyceride. No infections were detected. Although not seen in a bone marrow biopsy, clinical presentation, and absence of infection, together with an H-score of 263, indicated HLH. The patient was treated with dexamethasone for four days and discharged on a tapering dose of steroids. At the two-month follow-up, clinical presentation was normal and blood test almost normalised. At 8 months, no liver metastases were observed. Conclusions: In a patient with a pre-existing autoimmune condition, immunotherapy led to the development of HLH, which was controlled by glucocorticoid. Absence of the feature of haemophagocytosis in the bone marrow biopsy did not exclude the diagnosis, as HLH can occur in the spleen or in the liver. Glucocorticoid therapy did not prevent the anti-cancer effect of ICIs, and liver metastases disappeared 8 months post-HLH. This case warrants further research on the interplay between autoimmunity and ICI response, as well as ICI-induced irAEs. LEARNING POINTS: Haemophagocytic lymphohistiocytosis (HLH) post seventh cycle of trastuzumab (anti-HER2) and nivolumab (anti-PD-1) was controlled with glucocorticoid.Breach of tolerance was due to immunotherapy-induced HLH in a patient with pre-existing autoimmune condition (HLA B27- positive ankylosing spondylitis).There was a complete disappearance of liver metastases 8 months post-HLH.

2.
J Cutan Pathol ; 2024 Apr 03.
Artigo em Inglês | MEDLINE | ID: mdl-38570926

RESUMO

BACKGROUND: Despite the integral contribution of dermatopathologists in diagnosing skin lesions, their role often remains unclear to patients, likely due to little face-to-face interaction. More healthcare systems have begun introducing patient-pathologist consultation programs that allow patients to discuss results with a pathologist and view tissue under a microscope. To our knowledge, only one study has been published exploring patient perspectives of these programs and no studies exist regarding interest in dermatopathology. METHODS: An anonymous survey was distributed via online support groups for various dermatologic diagnoses. RESULTS: Patients demonstrated a high level of interest in the dermatopathologist-patient consultation program, with 81.3% expressing at least moderate interest in discussing their diagnosis with a dermatopathologist and 79.2% expressing at least moderate interest in examining their tissue under the microscope with a dermatopathologist. The rationale for interest included various themes: (1) knowledge/understanding, (2) empowerment, (3) emotional support, (4) general interest, and (5) improved trust. CONCLUSIONS: Patients with cancerous and non-cancerous dermatologic diagnoses demonstrate high interest in a dermatopathologist-patient consultation program. Efforts to pilot this type of program can build upon the infrastructure of current pathologist consultation programs. Future efforts should be taken by hospital leadership, clinicians, and dermatopathologists to determine physician interest and address logistical challenges to the implementation of these programs.

3.
BMJ Case Rep ; 17(4)2024 Apr 02.
Artigo em Inglês | MEDLINE | ID: mdl-38569728

RESUMO

We report a young pregnant woman with large midline thoracic mass and markedly elevated serum alpha-fetoprotein (AFP) levels. Initially suspected as a germ cell tumour (GCT) due to age, site, and high AFP levels, a biopsy unveiled a high-grade malignant tumour characterised by undifferentiated monotonous cells. Although tumour cells exhibited positive AFP, the overall immunoprofile did not provide additional evidence to support GCT. Further work-up showed positive for NUT (nuclear protein in testis) immunostaining and the presence of BRD4-NUT1 fusion, confirming the diagnosis of NUT carcinoma. On radiology, there were extensive metastases to lungs, liver, vertebrae, and placenta. Despite aggressive chemotherapy, radiotherapy and immunotherapy, she did not respond to the therapies. Fortunately, her child was not affected by the carcinoma. This is the first case highlighting that thoracic lung primary NUT carcinoma can spread to the placenta and manifest with elevated serum AFP levels, potentially leading to misdiagnosis as GCT both clinically and pathologically.


Assuntos
Carcinoma , alfa-Fetoproteínas , Feminino , Humanos , Gravidez , alfa-Fetoproteínas/metabolismo , Proteínas que Contêm Bromodomínio , Carcinoma/patologia , Proteínas de Ciclo Celular , Proteínas Nucleares , Placenta/patologia , Fatores de Transcrição
4.
Diabetes Ther ; 15(4): 833-842, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38407774

RESUMO

BACKGROUND: Anti-vascular endothelial growth factor (anti-VEGF) therapy is commonly used intravitreally for diabetic proliferative retinopathy, but when used systemically for treating cancers, an excess of cardiovascular disease (CVD) events has been noted. The latter is of concern for people with diabetes, who are at higher risk of CVD. This study aims to explore the relationship between incident CVD and intravitreal anti-VEGF therapy in patients with diabetes, compared to other therapies, using a large real-world global federated dataset. METHODS: Data were analysed using TriNetX, a global electronic medical real-world ecosystem. The study included adults with diabetes and excluded those with a history of CVD prior to the time window of data extraction. Patients were categorised into two cohorts: anti-VEGF therapy or control cohort (laser or steroid therapies). The cohorts were 1:1 propensity score-matched for age, sex, ethnicity, body mass index, systolic blood pressure, HbA1c, and cardiovascular medications. Outcomes analysed at 1, 6 and 12 months were: (1) mortality; (2) acute myocardial infarction (MI); (3) cerebral infarction; and (4) heart failure. Relative risk analyses were performed using the built-in R statistical computing platform on TriNetX. RESULTS: In patients with diabetes (n = 2205; mean age 58.8 ± 15.8, Std diff 0.05; 56% male), anti-VEGF therapy was associated with a numerical but non-statistically significant increased CVD risk over 1, 6, and 12 months: Mortality over 1 month (RR 1; 95% CI 0.42, 2.40), 6 months (RR 1.46; 95% CI 0.72, 2.95) and 12 months (RR 1.41; 95% CI 0.88, 2.27). There was no excess of acute MI over 1 (RR n/a: not applicable; 0/0: 0 events in the anti-VEGF group/0 events in the control group), 6 and 12 months (RR n/a; 0/10 events); cerebral infarction over 1, 6 months (RR n/a; 0/0 events), and 12 months (RR n/a; 0/10); and heart failure over 1 month (RR n/a; 0/0 events), 6 months (RR 1; 95% CI 0.42, 2.40) and 12 months (RR 1; 95% CI 0.42, 2.34). CONCLUSIONS: There was no statistically significant risk of cardiovascular-related events in the short or medium term in patients with diabetes who received intravitreal anti-VEGF therapy, despite a small increase in the number of CVD events. Our study supports the real-world safety of intravitreal anti-VEGF therapy in patients with diabetes free of baseline CVD.

5.
Dermatol Surg ; 50(1): 28-34, 2024 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-37962110

RESUMO

BACKGROUND: Delays or failure to complete a dermatologic referral may affect health care outcomes. Factors associated with these delays remain understudied. OBJECTIVE: This study investigated socioeconomic and demographic factors associated with delays or failure to complete dermatology referrals and potential impact on surgical outcomes. METHODS: A retrospective chart review was performed for 400 patients internally referred to an academic dermatology center from 19 primary-care clinics from July 2018 to June 2019. Only patients referred after an in-person primary-care visit in which the provider documented a specific concerning lesion were included. Multivariate analyses were performed to explore variables associated with delays or failure to complete dermatology referrals. RESULTS: Patients were more likely to complete their referral if they had a personal history (adjusted odds ratio [aOR] = 7.843, 95% CI 1.383-14.304) or family history (aOR = 11.307, 95% CI 2.344-20.27) of skin cancer. Patients were more likely to delay referral completion past 30 days if they were ages 18 to 34 (aOR = 6.665, 95% CI 1.285-12.044) and less likely to delay referral past 30 days if they had a previous history of skin cancer (aOR = 0.531, 95% CI 0.181-0.882). LIMITATIONS: Single institution, retrospective study, limited surgical patients. CONCLUSION: Understanding factors associated with delays in dermatology referral completion can help identify at-risk patient populations.


Assuntos
Dermatologia , Neoplasias Cutâneas , Humanos , Estudos Retrospectivos , Neoplasias Cutâneas/cirurgia , Fatores de Risco , Encaminhamento e Consulta
6.
Br J Sports Med ; 58(2): 97-109, 2024 Jan 03.
Artigo em Inglês | MEDLINE | ID: mdl-37989539

RESUMO

OBJECTIVE: To assess the effect of participating in an exercise intervention compared with no exercise during cancer treatment on the duration and frequency of hospital admissions. DESIGN: Systematic review and meta-analysis. DATA SOURCES: MEDLINE, EMBASE, PEDro and Cochrane Central Registry of Randomized Controlled Trials. ELIGIBILITY CRITERIA FOR SELECTING STUDIES: Randomised studies published until August 2023 evaluating exercise interventions during chemotherapy, radiotherapy or stem cell transplant regimens, compared with usual care, and which assessed hospital admissions (length of stay and/or frequency of admissions). STUDY APPRAISAL AND SYNTHESIS: Study quality was assessed using the Cochrane Risk-of-Bias tool and Grading of Recommendations Assessment, Development and Evaluation assessment. Meta-analyses were conducted by pooling the data using random-effects models. RESULTS: Of 3918 screened abstracts, 20 studies met inclusion criteria, including 2635 participants (1383 intervention and 1252 control). Twelve studies were conducted during haematopoietic stem cell transplantation regimens. There was a small effect size in a pooled analysis that found exercise during treatment reduced hospital length of stay by 1.40 days (95% CI: -2.26 to -0.54 days; low-quality evidence) and lowered the rate of hospital admission by 8% (difference in proportions=-0.08, 95% CI: -0.13 to -0.03, low-quality evidence) compared with usual care. CONCLUSION: Exercise during cancer treatment can decrease hospital length of stay and admissions, although a small effect size and high heterogeneity limits the certainty. While exercise is factored into some multidisciplinary care plans, it could be included as standard practice for patients as cancer care pathways evolve.


Assuntos
Neoplasias , Qualidade de Vida , Humanos , Tempo de Internação , Hospitalização , Neoplasias/terapia , Terapia por Exercício , Hospitais
7.
J Immunother Cancer ; 11(12)2023 12 14.
Artigo em Inglês | MEDLINE | ID: mdl-38101862

RESUMO

Systemic treatment options for patients with locally advanced or metastatic basal cell carcinoma (BCC) are limited, particularly when tumors are refractory to anti-programmed cell death protein-1 (PD-1). A better understanding of immune checkpoint expression within the BCC tumor microenvironment may inform combinatorial treatment strategies to optimize response rates. CD3, PD-1, programmed death ligand-1 (PD-L1), lymphocyte activation gene 3 (LAG-3), and T-cell immunoglobulin domain and mucin domain 3 (TIM-3)+ cell densities within the tumor microenvironment of 34 archival, histologically aggressive BCCs were assessed. Tumor infiltrating lymphocyte (TIL) expression of PD-1, PD-L1, and LAG-3, and to a lesser degree TIM-3, correlated with increasing CD3+ T-cell densities (Pearson's r=0.89, 0.72, 0.87, and 0.63, respectively). 100% of BCCs (34/34) demonstrated LAG-3 and PD-1 expression in >1% TIL; and the correlation between PD-1 and LAG-3 densities was high (Pearson's r=0.89). LAG-3 was expressed at ~50% of the level of PD-1. Additionally, we present a patient with locally-advanced BCC who experienced stable disease during and after 45 weeks of first-line anti-PD-1 (nivolumab), followed by a partial response after the addition of anti-LAG-3 (relatlimab). Longitudinal biopsies throughout the treatment course showed a graduated increase in LAG-3 expression after anti-PD-1 therapy, lending support for coordinated immunosuppression and suggesting LAG-3 as a co-target for combination therapy to augment the clinical impact of anti-PD-(L)1.


Assuntos
Carcinoma Basocelular , Neoplasias Cutâneas , Humanos , Antígeno B7-H1 , Receptor Celular 2 do Vírus da Hepatite A , Receptor de Morte Celular Programada 1 , Carcinoma Basocelular/tratamento farmacológico , Neoplasias Cutâneas/tratamento farmacológico , Microambiente Tumoral
8.
Medicines (Basel) ; 10(10)2023 Oct 12.
Artigo em Inglês | MEDLINE | ID: mdl-37887264

RESUMO

Background: Sarcoidosis is a multisystem granulomatous disease with a wide variety of presentations and clinical courses. Cutaneous manifestations and comorbidities associated with sarcoid prognosis remain understudied. Methods: An EPIC query was run for patients age 18+ at the Johns Hopkins Hospital with a diagnosis of sarcoidosis of the skin according to the ICD-10-CM code D86.3. Data were obtained from a population-based sample of 240 patients from 2015 to 2020. Results: A total of 240 patients were included in the cohort study. The mean (SD) age was 43.76 (11.72) years, and 30% of participants were male; 76.25% of patients identified as black, 19.58% as white, and 4.17% as other. The average age of onset in remissive patients was significantly higher than progressive (47 ± 12 vs. 40 ± 10, p = 0.0005); 49% of black patients experienced progressive sarcoid compared to 32.6% of white patients (p = 0.028). Progressive disease was associated with the presence of lupus pernio (aOR = 3.29, 95% CI, 1.60-6.77) and at least one autoimmune comorbidity (aOR 6.831, 95% CI 1.819-11.843). Conclusions: When controlling for patient demographics, lupus pernio and the presence of at least one autoimmune condition were associated with progressive cutaneous sarcoidosis.

9.
Cureus ; 15(7): e42274, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37605659

RESUMO

Cytokine release syndrome (CRS) is a systemic inflammatory response characterized by fever, constitutional symptoms, and multiorgan dysfunction. While most commonly associated with immunotherapy, CRS can also be incited by infections or drugs. This case details the presentation and evaluation of a 71-year-old woman with a history of primary myelofibrosis and breast cancer who presented with acute onset of altered mental status. Initial vital signs were notable for severe hypertension, tachycardia, and fever. The patient was alert and oriented only to self, with little verbal output, and spontaneously moving all extremities. The patient had a submandibular gland abscess that had been diagnosed prior to presentation via a computed tomography scan of the neck. A comprehensive analysis, including blood tests, cerebrospinal fluid (CSF) analysis, electroencephalogram (EEG), and neuroimaging, was performed. Severe leukocytosis was noted and brain MRI demonstrated scattered areas of diffusion restriction and diffuse T2 white matter hyperintensities. Serial imaging demonstrated the progression of T2 hyperintensities. Ultimately, CRS was the most likely diagnosis. In this case, the inciting event was likely an infectious etiology, suspected to be the submandibular gland abscess that was present at the time of admission. It is vital to have a high index of suspicion for CRS in patients with recent infection, drug exposure, or immune dysregulation.

10.
J Am Acad Dermatol ; 89(5): 992-1000, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37422015

RESUMO

BACKGROUND: Despite the importance of patient satisfaction in ensuring high-quality care, studies investigating patient satisfaction in Mohs micrographic surgery (MMS) are limited. OBJECTIVE: We investigated the factors associated with patient satisfaction in MMS for nonmelanoma skin cancer and how patient satisfaction changes in the postoperative period. METHODS: In this prospective cohort study including 100 patients, patient satisfaction surveys were administered at the time of surgery and at 3 months postsurgery. Sociodemographic characteristics, medical history, and surgical parameters were collected by chart review. Univariate linear and logistic regression models were created to examine these relationships. RESULTS: Decreased satisfaction was observed in patients requiring 3 or more MMS stages both at the time of surgery (P = .047) and at 3 months post-surgery (P = .0244). Patients with morning procedures ending after 1:00 pm had decreased satisfaction at the time of surgery (P = .019). A decrease in patient satisfaction between the time of surgery and 3 months postsurgery was observed in patients with surgical sites on the extremities (P = .036), larger preoperative lesion sizes (P = .012), and larger defect sizes (P = .033). LIMITATIONS: Single-institution data, self-selection bias, and recall bias. CONCLUSION: Patient satisfaction with MMS is impacted by numerous factors and remains dynamic over time.


Assuntos
Carcinoma Basocelular , Neoplasias Cutâneas , Humanos , Cirurgia de Mohs/métodos , Satisfação do Paciente , Estudos Prospectivos , Neoplasias Cutâneas/cirurgia , Neoplasias Cutâneas/patologia , Inquéritos e Questionários , Estudos Retrospectivos , Carcinoma Basocelular/cirurgia
11.
Lab Invest ; 103(8): 100175, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37196983

RESUMO

Multiplex immunohistochemistry/immunofluorescence (mIHC/mIF) is a developing technology that facilitates the evaluation of multiple, simultaneous protein expressions at single-cell resolution while preserving tissue architecture. These approaches have shown great potential for biomarker discovery, yet many challenges remain. Importantly, streamlined cross-registration of multiplex immunofluorescence images with additional imaging modalities and immunohistochemistry (IHC) can help increase the plex and/or improve the quality of the data generated by potentiating downstream processes such as cell segmentation. To address this problem, a fully automated process was designed to perform a hierarchical, parallelizable, and deformable registration of multiplexed digital whole-slide images (WSIs). We generalized the calculation of mutual information as a registration criterion to an arbitrary number of dimensions, making it well suited for multiplexed imaging. We also used the self-information of a given IF channel as a criterion to select the optimal channels to use for registration. Additionally, as precise labeling of cellular membranes in situ is essential for robust cell segmentation, a pan-membrane immunohistochemical staining method was developed for incorporation into mIF panels or for use as an IHC followed by cross-registration. In this study, we demonstrate this process by registering whole-slide 6-plex/7-color mIF images with whole-slide brightfield mIHC images, including a CD3 and a pan-membrane stain. Our algorithm, WSI, mutual information registration (WSIMIR), performed highly accurate registration allowing the retrospective generation of an 8-plex/9-color, WSI, and outperformed 2 alternative automated methods for cross-registration by Jaccard index and Dice similarity coefficient (WSIMIR vs automated WARPY, P < .01 and P < .01, respectively, vs HALO + transformix, P = .083 and P = .049, respectively). Furthermore, the addition of a pan-membrane IHC stain cross-registered to an mIF panel facilitated improved automated cell segmentation across mIF WSIs, as measured by significantly increased correct detections, Jaccard index (0.78 vs 0.65), and Dice similarity coefficient (0.88 vs 0.79).


Assuntos
Corantes , Diagnóstico por Imagem , Imuno-Histoquímica , Estudos Retrospectivos , Imunofluorescência , Membrana Celular
12.
Am J Dermatopathol ; 44(12): 943-947, 2022 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-36395450

RESUMO

ABSTRACT: The seminal case report of plexiform melanocytic schwannoma, published a decade ago, indicated that this is a rare variant of schwannoma demonstrating immunohistochemical expression of melanocytic markers, electron microscopic evidence of melanosome formation, and genetic features of a benign schwannoma. We report herein, a second example of this entity. Of added interest, our case showed pseudoglandular features, as previously recorded in other variants of schwannoma. A 66-year-old man presented with a cutaneous papule on the abdomen. Histopathologically, a vertically oriented, exoendophytic, folliculocentric, dermal tumor with a plexiform architecture was observed. This was composed of nodules and diverging fascicles of bland spindle-shaped cells. Notable interstitial mucin deposition conveyed a pseudoglandular appearance to the lesion. The spindled cells co-expressed S100, SOX10, and HMB45. A minority of cells expressed Melan-A and MiTF. EMA and claudin-1 stained capsular and perifascicular perineurial cells. Melanin was absent. Plexiform melanocytic schwannoma represents one of several nerve sheath tumors that peculiarly display evidence of melanocytic differentiation. These include melanocytoneuroma, pigmented neurofibroma (or melanocytic neurofibroma), and malignant melanotic schwannian tumor. Of importance, these proliferations can be mistaken for melanocytic tumors, including melanoma. In expanding the literature on this topic, we discuss steps required to distinguish plexiform melanocytic schwannoma from melanoma and other nerve sheath tumors with melanocytic differentiation. The possible pathogenesis of these unusual neoplasms is also addressed.


Assuntos
Melanoma , Neoplasias de Bainha Neural , Neurilemoma , Neurofibroma , Lesões Pré-Cancerosas , Masculino , Humanos , Idoso , Neurilemoma/patologia , Melanoma/patologia , Neoplasias de Bainha Neural/patologia , Melanócitos/patologia
13.
Ear Nose Throat J ; : 1455613221119067, 2022 Aug 25.
Artigo em Inglês | MEDLINE | ID: mdl-36007169

RESUMO

Prostate cancer metastases involving the orbit and/or paranasal sinuses represent a rare oncological presentation. Patients can have a myriad of symptoms such as proptosis, periorbital swelling, blurry vision, rhinorrhea, epistaxis, anosmia, or others depending on the structures involved. The differential diagnosis of paranasal sinus masses on imaging studies is broad and can include inflammatory, congenital, or neoplastic masses; leading to the requirement of biopsy for definitive diagnosis. Tissue sample is usually obtained via an endoscopic approach. The prognosis of such a presentation is not well described in the literature, but it is usually guarded due to the advanced stage of the disease and generally a poorly differentiated primary tumor. Treatments usually aim to reduce the burden of disease and debulk the tumor mass for palliative purposes. We present a case of a 71-year-old male presenting with unilateral proptosis and periorbital swelling secondary to prostatic metastasis.

14.
Cell Chem Biol ; 29(5): 811-823.e7, 2022 05 19.
Artigo em Inglês | MEDLINE | ID: mdl-35231399

RESUMO

Zika virus (ZIKV) is a flavivirus that can cause severe disease, but there are no approved treatments or vaccines. A complication for flavivirus vaccine development is the potential of immunogens to enhance infection via antibody-dependent enhancement (ADE), a process mediated by poorly neutralizing and cross-reactive antibodies. Thus, there is a great need to develop immunogens that minimize the potential to elicit enhancing antibodies. Here we utilized structure-based protein engineering to develop "resurfaced" (rs) ZIKV immunogens based on E glycoprotein domain III (ZDIIIs), in which epitopes bound by variably neutralizing antibodies were masked by combinatorial mutagenesis. We identified one resurfaced ZDIII immunogen (rsZDIII-2.39) that elicited a protective but immune-focused response. Compared to wild type ZDIII, immunization with resurfaced rsZDIII-2.39 protein nanoparticles produced fewer numbers of ZIKV EDIII antigen-reactive B cells and elicited serum that had a lower magnitude of induced ADE against dengue virus serotype 1 (DENV1) Our findings enhance our understanding of the structural and functional determinants of antibody protection against ZIKV.


Assuntos
Vírus da Dengue , Nanopartículas , Infecção por Zika virus , Zika virus , Anticorpos Neutralizantes , Anticorpos Antivirais , Vírus da Dengue/química , Humanos , Proteínas do Envelope Viral/química , Proteínas do Envelope Viral/genética , Infecção por Zika virus/prevenção & controle
15.
Ear Nose Throat J ; : 1455613211065512, 2021 Dec 13.
Artigo em Inglês | MEDLINE | ID: mdl-34903079

RESUMO

Metastatic renal cell carcinoma to the thyroid is a rare yet aggressive histopathologic diagnosis, which may often be omitted from the initial clinical differential. This is in part due to the long latency period between the initial renal primary and appearance of metastatic disease, coupled with the diagnostic limitations of fine-needle aspiration biopsies. We herein present an interesting case of a metastatic clear-cell renal-cell carcinoma mimicking an aggressive primary thyroid neoplasm, 10 years after a nephrectomy for a renal primary, highlighting key diagnostic and management considerations.

16.
Cancer Med ; 10(24): 8883-8890, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34850580

RESUMO

BACKGROUND: Malignant vascular tumors (MVTs) are rare and often misdiagnosed due to wide range of clinical presentations, varied histology, and exquisite imagining features. We aim to characterize two different types of MVTs of the liver: hepatic angiosarcomas (HA) and hepatic epithelioid hemangioendotheliomas (HEHE). METHODS: Data on HA and HEHE between 1975 and 2016 were extracted from the SEER database and analyzed. RESULTS: A total of 366 patients with HA were identified where 64.2% were male and 79% of White race. The median age at diagnosis was 64 ± 16.2 years. Distant metastasis was found in 24% of patients, regional disease in 22.1%, and localized disease in 21.3%. The median overall survival for HA was 2 months. For HEHE, 120 cases were identified, 32.5% were male and 80% of White race. The median age of diagnosis was 51 ± 16.8 years. Distant metastasis was found in 37.5% of patients, regional disease in 27.5%, and localized disease in 20%. The median overall survival was 182 months. CONCLUSION: Patients' demographics such as race, age, and gender may assist in elucidating distinct subtypes of MVTs. HA is an aggressive tumor despite intervention. Patients with HEHE tumors have significantly better survival compared to patients with HA. Further studies are needed to deepen our knowledge about the histopathology of these tumors, the outcomes of liver transplantation as a therapeutic alternative, and available molecular targets for MVTs.


Assuntos
Hemangioendotelioma Epitelioide/epidemiologia , Hemangiossarcoma/epidemiologia , Neoplasias Hepáticas/epidemiologia , Neoplasias Vasculares/epidemiologia , Feminino , Hemangioendotelioma Epitelioide/patologia , Hemangiossarcoma/patologia , Humanos , Neoplasias Hepáticas/patologia , Masculino , Pessoa de Meia-Idade , Sistema de Registros , Neoplasias Vasculares/patologia
17.
Front Immunol ; 12: 729851, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34721393

RESUMO

Multiple agents in the family Filoviridae (filoviruses) are associated with sporadic human outbreaks of highly lethal disease, while others, including several recently identified agents, possess strong zoonotic potential. Although viral glycoprotein (GP)-specific monoclonal antibodies have demonstrated therapeutic utility against filovirus disease, currently FDA-approved molecules lack antiviral breadth. The development of broadly neutralizing antibodies has been challenged by the high sequence divergence among filovirus GPs and the complex GP proteolytic cleavage cascade that accompanies filovirus entry. Despite this variability in the antigenic surface of GP, all filoviruses share a site of vulnerability-the binding site for the universal filovirus entry receptor, Niemann-Pick C1 (NPC1). Unfortunately, this site is shielded in extracellular GP and only uncovered by proteolytic cleavage by host proteases in late endosomes and lysosomes, which are generally inaccessible to antibodies. To overcome this obstacle, we previously developed a 'Trojan horse' therapeutic approach in which engineered bispecific antibodies (bsAbs) coopt viral particles to deliver GP:NPC1 interaction-blocking antibodies to their endo/lysosomal sites of action. This approach afforded broad protection against members of the genus Ebolavirus but could not neutralize more divergent filoviruses. Here, we describe next-generation Trojan horse bsAbs that target the endo/lysosomal GP:NPC1 interface with pan-filovirus breadth by exploiting the conserved and widely expressed host cation-independent mannose-6-phosphate receptor for intracellular delivery. Our work highlights a new avenue for the development of single therapeutics protecting against all known and newly emerging filoviruses.


Assuntos
Anticorpos Biespecíficos/farmacologia , Antivirais/farmacologia , Anticorpos Amplamente Neutralizantes/farmacologia , Ebolavirus/efeitos dos fármacos , Doença pelo Vírus Ebola/tratamento farmacológico , Lisossomos/efeitos dos fármacos , Proteína C1 de Niemann-Pick/antagonistas & inibidores , Proteínas do Envelope Viral/antagonistas & inibidores , Internalização do Vírus/efeitos dos fármacos , Anticorpos Biespecíficos/genética , Anticorpos Amplamente Neutralizantes/genética , Ebolavirus/imunologia , Ebolavirus/patogenicidade , Epitopos , Doença pelo Vírus Ebola/imunologia , Doença pelo Vírus Ebola/metabolismo , Doença pelo Vírus Ebola/virologia , Interações Hospedeiro-Patógeno , Humanos , Ligantes , Lisossomos/imunologia , Lisossomos/metabolismo , Lisossomos/virologia , Proteína C1 de Niemann-Pick/genética , Proteína C1 de Niemann-Pick/imunologia , Proteína C1 de Niemann-Pick/metabolismo , Engenharia de Proteínas , Receptor IGF Tipo 2/genética , Receptor IGF Tipo 2/metabolismo , Células THP-1 , Proteínas de Transporte Vesicular/genética , Proteínas de Transporte Vesicular/metabolismo , Proteínas do Envelope Viral/genética , Proteínas do Envelope Viral/imunologia , Proteínas do Envelope Viral/metabolismo
18.
Aging Med (Milton) ; 4(2): 120-127, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34250430

RESUMO

BACKGROUND: Malnutrition is an under recognized, but common issue in elderly patients. This study aimed to investigate the prevalence of poor nutritional status and identify comprehensive geriatric assessment-based clinical factors associated with increased malnutrition risk to assessing malnutrition risk in hospitalized elderly patients in China. METHODS: A total of 365 elderly hospitalized patients (178 women, 76.37 ± 7.74 years) undertook a comprehensive geriatric assessment (CGA), and have their nutritional status assessed using the short-form mini-nutritional assessment. RESULTS: Among 365 patients, 32 (8.77%) were malnourished and 112 (30.68%) were at risk of malnutrition. A logistic regression analysis showed that age (odds ratio [OR], 1.59; 95% confidence interval [CI], 1.13-2.23), alcohol consumption (OR, 2.04; 95% CI, 1.19-3.48), presence or history of cancer or heart failure (OR, 3.48 and 2.86; 95% CI, 1.49-8.13 and 1.12-7.27), depression (OR, 2.86; 95% CI, 1.97-4.17), body mass index (OR, 5.62; 95% CI, 3.62-8.71), being dependent in activity of daily living (OR, 3.81; 95% CI, 2.61-5.57), a lower score in instrumental activities of daily living (OR, 3.01; 95% CI, 2.09-4.33), recent fall(s) (OR, 2.22; 95% CI, 1.37-2.91), cognitive impairment (OR, 1.81; 95% CI, 1.30-2.53), insomnia (OR, 1.49; 95% CI, 1.07-2.06), hemoglobin and albumin level (OR, 1.72 and 2.86; 95% CI, 1.17-2.50 and 1.53-5.36) were independent correlates of malnutrition in older patients. CONCLUSION: Our study demonstrated that age, alcohol consumption, chronic diseases (cancer and heart failure), depression, body mass index, function status, recent fall(s), cognitive impairment, insomnia, and low hemoglobin and albumin levels were independently associated with malnutrition in these patients. Comprehensive geriatric assessment can provide detailed information of older patients and can be a useful tool for assessing malnutrition risk-associated factors.

19.
J Clin Gastroenterol ; 55(6): 534-541, 2021 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-33464029

RESUMO

BACKGROUND: The incidence of colorectal cancer is increasing among young adults in the United States. We aim to investigate the incidence rate, the effect of multimodal therapy, and survival outcomes of rectal cancer in patients under 45 years of age. PATIENTS AND METHODS: Data on young-onset (under 45 y) rectal cancer between 2000 and 2016 was extracted from the Surveillance, Epidemiology, and End Results Registry (SEER). RESULTS: A total of 10,375 patients with young-onset rectal cancer were identified where 54.7% were male. The median age at diagnosis was 40±5.7 years. The overall age-adjusted incidence of rectal cancer between 2000 and 2016 was 1.24 per 100,000 per year. Incidence increased with age, with the highest incidence occurring in the 40- to 44-year age group. Over the 16-year study period, rectal cancer increased by ∼2.29%. Most tumors on presentation were moderately differentiated (30.8%) while the most common stage at presentation was stage 4 (48.3%). One- and 5-year cause-specific survival for rectal cancer was 93% and 72%, respectively. According to Cox proportional hazard models, chemotherapy was associated with increased mortality in patients with localized cancer [hazard ratio (HR)=2.88, 95% confidence interval (CI): 2.04-4.08, P<0.001], did not significantly improve mortality outcomes in patients with regional cancer (HR=0.89, 95% CI: 0.70-1.04, P=0.116), but reduced mortality in patients with distant cancer (HR=0.62, 95% CI: 0.56-0.70, P<0.001), though this effect was largely seen in patients 35 years and older. Surgery was associated with improved survival across all cancer stages. CONCLUSIONS: The incidence of regional and distant rectal cancer is increasing in young patients. While patient age is an important prognostic indicator of survival, chemotherapy does not appear to improve survival in younger patients with localized and regional disease.


Assuntos
Neoplasias Retais , Estudos de Coortes , Humanos , Incidência , Masculino , Estadiamento de Neoplasias , Neoplasias Retais/epidemiologia , Neoplasias Retais/terapia , Programa de SEER , Taxa de Sobrevida , Estados Unidos/epidemiologia , Adulto Jovem
20.
Pancreatology ; 21(1): 124-129, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33334692

RESUMO

BACKGROUND: Pancreatic cancer is projected to become the second leading cause of cancer related death in the US. We aim to investigate the demographics, clinical outcomes and survival outcomes of patients diagnosed with early-onset (<40 years) and late-onset (>40 years) pancreatic adenocarcinoma (PAC). METHODS: Data on PAC between 1975 and 2016 were extracted from the Surveillance, Epidemiology, and End Results Registry. RESULTS: Within the study period, 136,100 patients were identified which included 1181 patients with early-onset PAC and 134,919 patients with late-onset PAC. Both cohorts tend to present with distant metastasis (70.3% vs 57.9%). Both groups also showed an exponential rise in incidence (early-onset 3.69% annual change vs late-onset 6.25% annual change). When stratified by anatomical location, there was a trend of increasing cancer in the head of the pancreas for patients <40 years (3.63% annual change). While late PAC showed increasing cancer in all anatomical locations, the largest increase was observed in the tail of the pancreas (8.62% annual change). Overall, there was a mild difference in survival for early- and late-onset PAC (7 months vs 6 months, respectively, log rank p = 0.004). Both age groups showed the worse prognosis when cancer occurred in the tail of the pancreas (6 months vs 4 months, respectively). On cox proportion analysis, patients with late-onset PAC had twice the risk of mortality compared to early-onset PAC (HR 2.06, CI: 1.788-2.370, P = 0.001). CONCLUSIONS: Our study showed that both early- and late-onset PAC are increasing and while prognosis remains poor. Tumor anatomy showed a growing incidence of early-onset PAC in the head of the pancreas while late-onset PAC showed a rising incidence in the body and tail of the pancreas.


Assuntos
Adenocarcinoma/patologia , Envelhecimento , Neoplasias Pancreáticas/patologia , Adenocarcinoma/epidemiologia , Adulto , Estudos de Coortes , Humanos , Incidência , Neoplasias Pancreáticas/epidemiologia , Estudos Retrospectivos , Fatores de Tempo
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