230 results match your criteria: "MGH Cancer Center[Affiliation]"

Powerful microscopy technologies decode spatially organized cellular networks that drive response to immunotherapy in humans.

Curr Opin Immunol

December 2024

Krantz Family Center for Cancer Research, Massachusetts General Hospital (MGH) Cancer Center, Harvard Medical School (HMS), Boston, MA, USA; Broad Institute of Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA, USA; Harvard Medical School, Boston, MA, USA. Electronic address:

In tumors, immune cells organize into networks of different sizes and composition, including complex tertiary lymphoid structures and recently identified networks centered around the chemokines CXCL9/10/11 and CCL19. New commercially available highly multiplexed microscopy using cyclical RNA in situ hybridization and antibody-based approaches have the potential to establish the organization of the immune response in human tissue and serve as a foundation for future immunology research.

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  • The study revealed that melanoma only formed in zebrafish melanocytes lining internal organs, mirroring the conditions in human patients and highlighting a distinct chromatin structure compared to skin melanomas.
  • The findings indicated that zebrafish internal melanocytes share gene expression patterns with human MMs, showing characteristics linked to increased metastasis and decreased response to immunotherapy, thereby providing a valuable model for developing new treatments for MM.
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  • Scientists are trying to understand how immune cells are organized in human tumors, especially in lung cancer.
  • They found special areas called 'immunity hubs' in tumors that help attract T cells and can improve responses to a type of treatment called PD-1 blockade.
  • One important type of hub they discovered is called the 'stem-immunity hub,' which has a mix of special immune cells that work together in a way that can help fight the cancer better when patients get immunotherapy.
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Precision Oncology in Melanoma and Skin Cancer Surgery.

Surg Oncol Clin N Am

April 2024

Department of Surgery, MGH, Boston, MA, USA; Department of Surgery, Massachusetts General Hospital (MGH) Cancer Center, Harvard Medical School (HMS), Boston, MA, USA. Electronic address:

There has been perhaps no greater advance in the prognosis of solid tumors in the last decade than for patients with metastatic melanoma. This is due to significant improvements in treatment based on two key components of melanoma tumor biology (1) the identification of driver mutations with therapeutic potential and (2) the mechanistic understanding of a tumor-specific immune response. With breakthrough findings in such a relatively short period of time, the treatment of patients with metastatic melanoma has become intensely personalized.

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Background & Purpose: Radium-223 (Ra223) improves survival in metastatic prostate cancer (mPC), but its impact on systemic immunity is unclear, and biomarkers of response are lacking. We examined markers of immunomodulatory activity during standard clinical Ra223 and studied the impact of Ra223 on response to immune checkpoint inhibition (ICI) in preclinical models.

Materials & Methods: We conducted a single-arm biomarker study of Ra223 in 22 bone mPC patients.

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Paroxysmal nocturnal hemoglobinuria (PNH) is a rare, acquired hematologic disorder commonly treated with complement inhibitors such as eculizumab, ravulizumab, and pegcetacoplan. This study aims to describe treatment patterns, healthcare resource utilization, and cost for newly diagnosed PNH patients in 2 large, health insurance claims databases: MarketScan and Optum. Among the 271 patients meeting the inclusion criteria in MarketScan, 57.

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Central nervous system (CNS) radiotoxicity remains a challenge in neuro-oncology. Dose distribution advantages of protons over photons have prompted increased use of brain-directed proton therapy. While well-recognized among pediatric populations, the benefit of proton therapy among adults with CNS malignancies remains controversial.

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Leptomeningeal disease (LMD) remains a major challenge in the clinical management of metastatic melanoma patients. Outcomes for patient remain poor, and patients with LMD continue to be excluded from almost all clinical trials. However, recent trials have demonstrated the feasibility of conducting prospective clinical trials in these patients.

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  • Researchers wanted to compare two treatments for bladder cancer: one is surgery (radical cystectomy), and the other is a combination of surgery, chemotherapy, and radiation (trimodality therapy).
  • They studied 722 patients with similar cancer stages from different hospitals in the USA and Canada to see which treatment worked better.
  • The main goal was to see which treatment helped patients live longer without their cancer spreading, and they used complex methods (like matching patients) to ensure fair comparisons.
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Introduction: Cancer treatment planning in older adults is complex and requires careful balancing of survival, quality of life benefits, and risk of treatment-related morbidity and toxicity. As a result, treatment selection in this cohort tends to differ from that for younger patients. However, there are very few studies describing cancer treatment patterns in older cohorts.

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CAR-T cell therapy is an effective cancer therapy for multiple refractory/relapsed hematologic malignancies but is associated with substantial toxicity, including Immune Effector Cell Associated Neurotoxicity Syndrome (ICANS). Improved detection and assessment of ICANS could improve management and allow greater utilization of CAR-T cell therapy, however, an objective, specific biomarker has not been identified. We hypothesized that the severity of ICANS can be quantified based on patterns of abnormal brain activity seen in electroencephalography (EEG) signals.

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  • * A total of 107 patients were analyzed, revealing that most were former smokers and had adenocarcinoma, with many showing low programmed death-ligand 1 expression and various co-mutations.
  • * Results indicated that patients with co-mutations experienced significantly shorter progression-free and overall survival rates compared to those without, highlighting the importance of these mutations in therapy response.
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  • - Brain metastases (MBM) are the most common type of brain cancer, and recent studies highlight advances in understanding and treating them, particularly from the Melanoma Research Foundation's annual meeting.
  • - Historically, patients with symptomatic MBM were often excluded from immunotherapy trials; however, new efforts have led to more inclusive clinical trials and discussions about effective treatments, including checkpoint inhibitors, steroids, radiotherapy, and targeted therapy.
  • - Advances in scientific techniques, like single-cell omics and multiplex imaging, are revealing new insights into the MBM environment, potentially leading to innovative treatments and improved outcomes for patients.
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  • * Researchers identified two specific genetic variants in an African population that increase mRNA expression, leading to more effective peptide loading by enhancing transcription factor binding and blocking microRNA interaction.
  • * These genetic variants are linked to lower levels of malaria infections and severity, suggesting that they improve immune response through better antigen presentation, which is crucial for developing effective vaccines.
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Cardiovascular Disease in Adult Cancer Survivors: a Review of Current Evidence, Strategies for Prevention and Management, and Future Directions for Cardio-oncology.

Curr Oncol Rep

November 2022

Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC, 3004, Australia.

Purpose Of Review: Cardiovascular disease is long-term complication of both cancer and anti-cancer treatment and can have significant ramifications for health-related quality of life and mortality. This narrative review explores the current evidence linking cardiovascular disease and cancer, as well as exploring strategies for the prevention and management of cardiovascular disease, and outlines future opportunities in the field of cardio-oncology.

Recent Findings: Cancer confers risk for various cardiovascular diseases including heart failure, cardiomyopathy, arrhythmia, coronary heart disease, stroke, venous thromboembolism, and valvular heart disease.

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Treatment with checkpoint inhibitors can be extraordinarily effective in a fraction of patients, particularly those whose tumors are pre-infiltrated by T cells. In others, efficacy is considerably lower, which has led to interest in developing strategies for sensitization to immunotherapy. Using various colorectal cancer mouse models, it is shown that the use of Traf2 and Nck-interacting protein kinase inhibitors (TNIKi) unexpectedly increases tumor infiltration by PD-1 CD8 T cells, thus contributing to tumor control.

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Mutant IL7R collaborates with MYC to induce T-cell acute lymphoblastic leukemia.

Leukemia

June 2022

Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.

T-cell acute lymphoblastic leukemia (T-ALL) is an aggressive pediatric cancer. Amongst the wide array of driver mutations, 10% of T-ALL patients display gain-of-function mutations in the IL-7 receptor α chain (IL-7Rα, encoded by IL7R), which occur in different molecular subtypes of this disease. However, it is still unclear whether IL-7R mutational activation is sufficient to transform T-cell precursors.

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Unlabelled: Although aspirin has been considered a promising agent for prevention of colorectal cancer, recent data suggest a lack of benefit among older individuals. Whether some individuals with higher risk of colorectal cancer may benefit from aspirin remains unknown. We used a 95-variant colorectal cancer polygenic risk score (PRS) to explore the association between genetic susceptibility to colorectal cancer and aspirin use in a prospective study of 12,609 individuals of European descent ages ≥70 years, enrolled in the ASPirin in Reducing Events in the Elderly (ASPREE) double-blinded, placebo-controlled randomized trial (randomized controlled trial; RCT).

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Functional Decline in the Cancer Patient: A Review.

Cancers (Basel)

March 2022

Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC 3004, Australia.

A decline in functional status, an individual's ability to perform the normal activities required to maintain adequate health and meet basic needs, is part of normal ageing. Functional decline, however, appears to be accelerated in older patients with cancer. Such decline can occur as a result of a cancer itself, cancer treatment-related factors, or a combination of the two.

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Purpose: Little is known about non-tobacco substance use (SU) and its treatment in cancer patients. National guidelines address tobacco only, and assessment of SU in cancer patients is not standardized. It is not clear how oncology clinicians assess, document, and follow-up on SU.

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Low NCOR2 levels in multiple myeloma patients drive multidrug resistance via MYC upregulation.

Blood Cancer J

December 2021

Center for Multiple Myeloma, Division of Hematology and Oncology, MGH Cancer Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA.

MYC upregulation is associated with multidrug refractory disease in patients with multiple myeloma (MM). We, isolated patient-derived MM cells with high MYC expression and discovered that NCOR2 was down-regulated in these cells. NCOR2 is a transcriptional coregulatory protein and its role in MM remains unknown.

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Saponins are potent and safe vaccine adjuvants, but their mechanisms of action remain incompletely understood. Here, we explored the properties of several saponin formulations, including immune-stimulatory complexes (ISCOMs) formed by the self-assembly of saponin and phospholipids in the absence or presence of the Toll-like receptor 4 agonist monophosphoryl lipid A (MPLA). We found that MPLA self-assembles with saponins to form particles physically resembling ISCOMs, which we termed saponin/MPLA nanoparticles (SMNP).

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