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The current understanding of humoral immune response in cancer patients suggests that tumors may be infiltrated with diffuse B cells of extra-tumoral origin or may develop organized lymphoid structures, where somatic hypermutation and antigen-driven selection occur locally. These processes are believed to be significantly influenced by the tumor microenvironment through secretory factors and biased cell-cell interactions. To explore the manifestation of this influence, we used deep unbiased immunoglobulin profiling and systematically characterized the relationships between B cells in circulation, draining lymph nodes (draining LNs), and tumors in 14 patients with three human cancers.
View Article and Find Full Text PDFDisorders in pulmonary vascular integrity are a prominent feature in many lung diseases. Paracrine signaling is highly enriched in the lung and plays a crucial role in regulating vascular homeostasis. However, the specific local cell-cell crosstalk signals that maintain pulmonary microvascular stability in adult animals and humans remain largely unexplored.
View Article and Find Full Text PDFBeyond CTLA-4 and PD-1: Novel Insights into MAO-A as a Next- Generation Immune Checkpoint Modulator for Cancer Immunotherapy.
Curr Cancer Drug Targets
January 2025
Division of Pharmacology, Guru Nanak Institute of Pharmaceutical Science and Technology, Kolkata, 700114, India.
Immune checkpoint blockade (ICB) has fundamentally transformed cancer treat-ment by unlocking the potency of CD8+ T cells by targeting the suppression of the CTLA-4 and PD-1/PD-L1 pathways. Nevertheless, ICBs are associated with the risk of severe side effects and resistance in certain patients, driving the search for novel and safer immune check-point modulators. Monoamine Oxidase A (MAO-A) plays an unexpected role in the field of cancer.
View Article and Find Full Text PDFAn Unexpected Mediastinal Fibrosis Case Detected and Evaluated of Treatment Response With 18F-FDG PET/CT.
Clin Nucl Med
January 2025
From the Department of Nuclear Medicine, University of Health Sciences Turkey, Basaksehir Cam and Sakura City Hospital, Istanbul, Turkey.
IgG4-releated disease is systemic fibroinflammatory disease characterized by infiltration of IgG4-positive plasma cells in the affected tissue. Mediastinal fibrosis, which is also known as fibrosing mediastinitis, is a rare form of IgG4-releated disease. We present a case of mediastinal and retroperitoneal fibrosis in 52-year-old man who was detected with increased radiopharmaceutical uptake in 18F-FDG PET/CT imaging.
View Article and Find Full Text PDFIn vivo gene editing of T-cells in lymph nodes for enhanced cancer immunotherapy.
Nat Commun
November 2024
Department of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, China.
Immune checkpoint blockade (ICB) therapy, while promising for cancer treatment, faces challenges like unexpected side effects and limited objective responses. Here, we develop an in vivo gene-editing strategy for improving ICB cancer therapy in a lastingly effective manner. The approach uses a conductive hydrogel-based electroporation system to enable nucleofection of programmed cell death protein 1 (PD1) targeted CRISPR-Cas9 DNAs into T-cells directly within the lymph nodes, and subsequently produces PD1-deficient T-cells to combat tumor growth, metastasis and recurrence in different melanoma models in mice.
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