Background: Vitiligo represents a commonly diagnosed autoimmune disease caused by the depletion of epidermal melanocytes. Many subsets of T cells contribute to vitiligo pathogenesis, including resident and circulating memory T cells.
Objectives: To analyze the amounts of CD4 and CD8 memory T-cell subsets in peripheral blood specimens from vitiligo patients and alterations caused by narrowband ultraviolet B (NB-UVB) phototherapy.
Methods: Circulating CD4 and CD8 central memory T (T ) and effector memory T (T ) cell frequencies in 33 patients with non-segmental vitiligo and 16 healthy donors were evaluated by flow cytometry. Related chemokine levels were also detected.
Results: Peripheral blood CD4 T and CD8 T counts were markedly reduced in vitiligo cases while they were higher in active vitiligo compared with stable vitiligo cases. Circulating CD8 T frequency in vitiligo was closely related to disease duration. Interestingly, CD4 T and CD8 T frequencies, alongside CXCL9 and CXCL10 amounts in peripheral blood of patients with vitiligo, were significantly decreased after NB-UVB phototherapy.
Conclusions: Decreased frequencies of circulating CD4 T and CD8 T by NB-UVB suggest a possible immunosuppressive effect of phototherapy. The chemokines CXCL9 and CXCL10 are the bridge between circulating and skin resident memory T cells. NB-UVB blocks the homing of circulating memory T cells into vitiligo lesions by down-regulating CXCL9 and CXCL10. Targeting the above proteins could provide novel, durable treatment options to cure and prevent flares of this disease.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9292791 | PMC |
| http://dx.doi.org/10.1111/phpp.12719 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Shenqi injection plus probiotics improves nutritional status in patients with gastric cancer after partial gastrectomy.
Pak J Pharm Sci
January 2025
Department of Gastroenterology, Yulin First Hospital, Yulin, Shaanxi, China.
In recent years, the incidence of gastric cancer (GC) has been on the rise, surgical procedures usually require the removal of part of gastric tissue connected with the tumor lesion, which leads to poor postoperative health and adverse prognosis in patients. Probiotics, as an active microorganism, play an important role in improving gastrointestinal function and enhancing immunity. In this study, we randomized 135 GC patients into a control group, a probiotic group and a combination group.
View Article and Find Full Text PDF[Characteristics of immune response induced by mucosal immunization with recombinant adenovirus of Mycobacterium tuberculosis phosphodiesterase].
Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi
January 2025
Department of Microbiology and Pathogenic Biology, Air Force Military Medical University, Xi'an 710032, China. *Corresponding authors, E-mail:
Objective The prevalence of drug-resistant Mycobacterium tuberculosis (Mtb) strains is exacerbating the global burden of tuberculosis (TB), highlighting the urgent need for new treatment strategies for TB. Methods The recombinant adenovirus vaccine expressing cyclic di-adenosine monophosphate (c-di-AMP) phosphodiesterase B (CnpB) (rAd-CnpB), was administered to normal mice via mucosal immunization, either alone or in combination with drug therapy, to treat Mtb respiratory infections in mice.Enzyme-linked immunosorbent assay (ELISA) was used to detect the levels of antibodies in serum and bronchoalveolar lavage fluid (BALF).
View Article and Find Full Text PDFPreliminary exploration of the association of CXCR6T lymphocytes in T2D.
Int Immunopharmacol
January 2025
State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Diseases Research, Beijing, China; National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China; Department of Gastroenterology, The Second Medical Center, Chinese PLA General Hospital, Beijing, China. Electronic address:
Type 2 diabetes (T2D) is a metabolic disease, in which inflammation is a key factor. It has been well established that T cells play important role in antigen-driven immune disorders or immune defense, but were less discussed in inflammatory metabolic diseases. However, accumulating evidences suggest that CD186 (also known as CXCR6)-positive tissue infiltrating T cells might play a key role in inflammatory metabolic diseases.
View Article and Find Full Text PDFCirculating T cell subpopulations in dairy calves infected with Bovine viral diarrhea virus 2 and Bovine herpes virus 1 following modified-live virus booster vaccination: Effects of the administration route and trace mineral supplementation.
Vet Immunol Immunopathol
January 2025
Group for Reproduction in Animals, Vaccinology & Infectious Diseases (GRAVID™), College of Veterinary Medicine, University of Georgia, Athens, GA 30602-2771, United States.
Article Synopsis
- The study aimed to assess how different routes of vaccine administration and the use of injectable trace minerals (ITM) affect immune responses in dairy calves infected with BVDV2 and BHV1.
- A total of 60 calves were vaccinated and monitored for immune cell counts, revealing that unvaccinated calves showed significantly lower leukocyte levels compared to vaccinated ones.
- Results indicated that calves receiving subcutaneous vaccinations had better immune response, particularly in CD4 T cells, and those in the ITM-IN group had the highest CD8 T cell counts, highlighting the importance of both the vaccination method and ITM usage in immune system effectiveness.
A transcriptomic analysis of the interplay of ferroptosis and immune filtration in endometriosis and identification of novel therapeutic targets.
Comput Biol Chem
January 2025
Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow Campus, Lucknow, Uttar Pradesh, India. Electronic address:
Endometriosis is an inflammatory disease, involving immune cell infiltration and production of inflammatory mediators. Ferroptosis has recently been recognized as a mode of controlled cell death and the iron overload and peroxidative environment prevailing in the ectopic endometrium facilitates the occurrence of ferroptosis. In the current investigation, gene expression data was obtained from the dataset GSE7305.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!