Cell Immunol
Department of Infectious Diseases, College of Veterinary Medicine University of Georgia, Athens, GA 30606, USA. Electronic address:
Published: April 2021
HIV-infected individuals on combined antiretroviral therapy (ART) with virologic suppression exhibit sustained immune dysfunction. Our recent work has highlighted that monocytic myeloid derived suppressor cells (M-MDSC) are elevated in these individuals and suppress immune responses. Factors responsible for M-MDSC expansion in vivo are unknown. Here we compared circulating frequency of M-MDSC in HIV-infected persons from the US and India where HIV subtype-B or -C predominate, respectively. We further investigated soluble mediators of residual immune activation in two cohorts and determined their correlation with M-MDSC expansion. Our findings show that M-MDSC are elevated and correlate with plasma levels of IL-6 in both cohorts. Chemokines CXCL10, CCL4 and CXCL8 were also elevated in HIV-infected individuals, but did not correlate with M-MDSC. These findings support that IL-6 is important in M-MDSC expansion which is independent of HIV subtype.
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http://dx.doi.org/10.1016/j.cellimm.2021.104304 | DOI Listing |
J Virol
January 2025
Institute for Medical Virology and Epidemiology of Viral Diseases, University Hospital Tübingen, Tübingen, Germany.
One key determinant of HIV-1 latency reversal is the activation of the viral long terminal repeat (LTR) by cellular transcription factors such as NF-κB and AP-1. Interestingly, the activity of these two transcription factors can be modulated by glucocorticoid receptors (GRs). Furthermore, the HIV-1 genome contains multiple binding sites for GRs.
View Article and Find Full Text PDFJ Infect Public Health
January 2025
Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties "G D'Alessandro," University of Palermo, Palermo, Italy; Infectious and Tropical Disease Unit and Sicilian Regional Reference Center for the fight against AIDS, AOU Policlinico "P. Giaccone", Palermo, Italy. Electronic address:
Background: HIV infection has been associated with an increased risk of cancer development and Kaposi's sarcoma, non-Hodgkin's lymphoma, and invasive cervical cancers have been a manifestation of AIDS. With the advent of antiretroviral therapy, a collateral appearance of non-AIDS defining cancers (NADC) has been observed in HIV positive patients.
Methods: From January 1997 to December 2022, we performed an observational cross-sectional study, involving HIV-infected outpatients with both AIDS-defining cancers (ADC) and NADC, followed up in a tertiary hospital in Italy.
Rev Bras Enferm
January 2025
Universidade Franciscana. Santa Maria, Rio Grande do Sul, Brazil.
Objectives: to compare the sociodemographic and clinical severity indicators of hospitalized people with HIV in relation to clinical outcomes and urgent hospital admission.
Methods: a retrospective cohort study was conducted with 102 medical records of HIV-infected individuals hospitalized in a hospital in southern Brazil. In addition to descriptive analysis, Fisher's exact test, Pearson's Chi-square, and logistic regression were used.
EBioMedicine
January 2025
State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, NHC Key Laboratory of AIDS Prevention and Treatment, National Clinical Research Center for Laboratory Medicine, The First Hospital of China Medical University, China Medical University, Shenyang, 110001, China; Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang, 110001, China; Key Laboratory of AIDS Immunology of Liaoning Province, Shenyang, 110001, China. Electronic address:
Background: Although antiretroviral therapy (ART) effectively inhibits viral replication, it does not fully mitigate the immunosenescence instigated by HIV infection. Cellular metabolism regulates cellular differentiation, survival, and senescence. Serine hydroxymethyltransferase 2 (SHMT2) is the first key enzyme for the entry of serine into the mitochondria from the de novo synthesis pathway that orchestrates its conversion glutathione (GSH), a key molecule in neutralising ROS and ensuring the stability of the immune system.
View Article and Find Full Text PDFBMC Public Health
January 2025
Department of Public Health, Woldia University, Woldia, Ethiopia.
Background: Despite advancements in Human Immunodeficiency Virus (HIV) treatment and care, undernutrition remains a significant concern, accelerating disease progression and risk of Acquired Immune Deficiency Syndrome (AIDS)-related deaths. The nutritional status of second-line antiretroviral treatment (SLART) users in Ethiopia has not been thoroughly investigated. So, this study aimed to assess the nutritional status of HIV/AIDS patients who were on SLART and its associated factors in Northern Ethiopia.
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