Background: The aim of this study was to investigate the changes of T lymphocyte subsets (Th1, Th2, Tc1, Tc2, and Th17) and memory T lymphocyte subsets (Tcm and Tem) in patients with multiple myeloma (MM) at different stages of the disease.
Methods: In total, 25 newly diagnosed patients with MM were selected as the study subjects and 30 healthy people were selected as the control group. The subsets of T lymphocytes such as Th1, Th2, Tc1, Tc2, Th17, Tcm, and Tem in the peripheral blood were detected by flow cytometry at the time of initial diagnosis, infection, and remission.
Results: Th1, Tem, and Tcm cells in MM patients showed a significant decrease compared to the control group. Th2 and Th17 cells in MM patients showed a significant increase compared to the control group. Total Th1 cells and memory Th1 cells in MM patients with bacterial infection were significantly higher than at initial diagnosis (p < 0.05). The Tcm of Th2 cells in the remission stage were significantly higher than those in MM patients with no remission.
Conclusions: MM patients have decreased Th1 cells and increased Th2 and Th17 cells. The changes in memory Th1 cells were related to bacterial infection in MM patients. The increase of Tcm of Th2 cells may be associated with disease remission. The balance of T lymphocyte subsets plays an important role in the pathogenic course of MM.
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http://dx.doi.org/10.7754/Clin.Lab.2024.240513 | DOI Listing |
J Med Virol
February 2025
Infectious Diseases Department, University Hospital Montpellier & INSERM U1175, University Montpellier, Montpellier, France.
Despite viral suppression with antiretroviral therapy, immune nonresponders (INR) among people living with HIV (PLWH) still have a higher risk of developing AIDS-related and non-AIDS-related complications. Our study aimed to investigate the phenotype and functions of Natural Killer (NK) cells in INR, to better understand underlying mechanisms of immune nonresponse. Our cross-sectional study included PLWH aged over 45 with an undetectable HIV viral load sustained for at least 2 years.
View Article and Find Full Text PDFLiver Int
February 2025
APHP, Hôpital Paul-Brousse, Centre Hépato-Biliaire, Inserm, Unité 1193, Université Paris-Saclay, FHU Hepatinov, Villejuif, France.
Over the past decade, immune checkpoint inhibitors (ICIs) have transformed the treatment of cancer, though they come with the risk of immune-related adverse (irAEs) events such as hepatotoxicity or Immune-mediated Liver Injury from Checkpoint Inhibitors (ILICI). ILICI is a serious irAE that, when severe, requires cessation of ICI and initiation of immunosuppression. Cytotoxic T Lymphocytes (CTLs) play a central role in ILICI; however, they are just part of the picture as immunotherapy broadly impacts all aspects of the immune microenvironment and can directly and indirectly activate innate and adaptive immune cells.
View Article and Find Full Text PDFFront Immunol
January 2025
Laboratorio de Pediatria Clinica (LIM36), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil.
Introduction: Chemokines and their receptors are essential for leukocyte migration to several tissues, including human milk. Here, we evaluated the homing of T and B lymphocyte subsets to breast milk in response to ongoing respiratory infections in the nursing infant.
Methods: Blood and mature milk were collected from healthy mothers of nurslings with respiratory infections (Group I) and from healthy mothers of healthy nurslings (Group C).
Front Immunol
January 2025
Team Immunity and Cancer, Cancer Research Center of Marseille (CRCM), Inserm U1068, CNRS UMR7258, Paoli-Calmettes Institute, University of Aix-Marseille UM105, Marseille, France.
Introduction: Acute myeloid leukemia (AML) is a rare haematological cancer with poor 5-years overall survival (OS) and high relapse rate. Leukemic cells are sensitive to Natural Killer (NK) cell mediated killing. However, NK cells are highly impaired in AML, which promote AML immune escape from NK cell immune surveillance.
View Article and Find Full Text PDFFront Immunol
January 2025
Acupuncture and Moxibustion College, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.
Introduction: Ulcerative colitis (UC) is a chronic inflammatory disease. Patients with UC typically exhibit disruption of the Treg/Th17 immune axis, but its exact mechanism is still unclear.
Methods: This study first analyzed RNA- seq data from public databases of humans and mice, and cytology experiments were conducted to induce or inhibit the expression of SIRT1.
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