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Introduction: Extensive-stage small-cell lung cancer (ED-SCLC) has a poor prognosis. There are few case reports on the therapeutic effect of pembrolizumab in advanced SCLC with high tumor mutation burden (TMB-high).
Case Presentation: A 65-year-old woman was diagnosed with ED-SCLC. The initial treatment regimen included carboplatin, etoposide, and durvalumab. Following the administration of durvalumab, etoposide was discontinued due to an anaphylactic reaction immediately after its initiation. The patient was unable to continue the same regimen and was switched to cisplatin and irinotecan therapy. A FoundationOne panel test was submitted at the same time, and TMB-high was detected. After four courses of cisplatin and irinotecan therapy, pembrolizumab was introduced, and a complete response (CR) was maintained for 18 months.
Conclusion: We report a rare case of a long-term response to pembrolizumab in ED-SCLC with TMB-high, highlighting the potential for targeted immunotherapy in such cases.
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http://dx.doi.org/10.1159/000544103 | DOI Listing |
Biochem J
September 2025
Cancer Research UK Scotland Institute, Glasgow, G61 1BD, U.K.
RNA cap formation on RNA polymerase II transcripts is regulated by cellular signalling pathways during development and differentiation, adaptive and innate immune responses, during the cell cycle and in response to oncogene deregulation. Here, we discuss how the RNA cap methyltransferase, RNA guanine-7 methyltransferase (RNMT), functions to complete the 7-methyl-guanosine or m7G cap. The mechanisms by which RNMT is regulated by signalling pathways, co-factors and other enzymes are explored.
View Article and Find Full Text PDFBlood Adv
September 2025
Alfred Health and Monash University, East Melbourne, Australia.
Zanubrutinib is a next-generation covalent Bruton tyrosine kinase (BTK) inhibitor designed to provide complete and sustained BTK occupancy for efficacy across disease-relevant tissues, with fewer off-target adverse events (AEs) than other covalent BTK inhibitors. In the phase 3 ASPEN study (BGB-3111-302), comparable efficacy and a favorable safety profile versus ibrutinib were demonstrated in patients with MYD88-mutated Waldenström macroglobulinemia (WM), leading to approval of zanubrutinib for patients with WM. BGB-3111-LTE1 (LTE1) is a long-term extension study to which eligible patients, including patients from comparator treatment arms, could enroll following participation in various parent studies of zanubrutinib to treat B-cell malignancies.
View Article and Find Full Text PDFPLoS One
September 2025
The George Institute for Global Health, Imperial College London, London, United Kingdom.
Background: Tobacco use remains a major public health challenge in sub-Saharan Africa, with significant gendered dimensions. Place of residence is an important determinant, as rural and urban contexts shape exposure, access, and consumption patterns. This study investigates rural-urban disparities in tobacco use among women in sub-Saharan Africa, with a focus on quantifying the relative contributions of socioeconomic factors.
View Article and Find Full Text PDFJ Nephrol
September 2025
Institute of Nephrology, Madras Medical College, Chennai, India.
Background: IgA nephropathy is a disease with a highly variable natural history, for which there is an increasing understanding of the role of complement activation in its pathogenesis and progression. We aimed to assess the clinical and prognostic implications of C4d staining in the kidney biopsy of IgA nephropathy patients.
Methods: This was a retrospective observational study wherein the medical records of IgA nephropathy patients were reviewed and baseline characteristics, kidney biopsy findings, treatment response and follow-up data were noted.
Cancer
September 2025
Thoracic Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, New York, USA.
Background: Trials of neoadjuvant chemoimmunotherapy (chemoIO) have changed the standard of care for resectable nonsmall cell lung cancer (NSCLC). This study characterizes the outcomes of off-trial patients who received treatment with neoadjuvant chemoIO.
Methods: The authors analyzed records of patients with stage IB-III NSCLC who received neoadjuvant chemoIO with an intent to proceed to surgical resection at three US academic institutions.