کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5649510 | 1407126 | 2017 | 36 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Skin-Resident Effector Memory CD8+CD28- T Cells Exhibit a Profibrotic Phenotype in Patients with Systemic Sclerosis
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کلمات کلیدی
موضوعات مرتبط
علوم پزشکی و سلامت
پزشکی و دندانپزشکی
امراض پوستی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Skin-Resident Effector Memory CD8+CD28- T Cells Exhibit a Profibrotic Phenotype in Patients with Systemic Sclerosis Skin-Resident Effector Memory CD8+CD28- T Cells Exhibit a Profibrotic Phenotype in Patients with Systemic Sclerosis](/preview/png/5649510.png)
چکیده انگلیسی
Loss of CD28 expression by CD8+ T cells occurs with age and during chronic inflammatory conditions. CD8+CD28- T cells are a heterogeneous cell subpopulation whose function ranges from immunosuppressive to effector. Here we analyzed the role of CD8+CD28- T cells in the pathogenesis of systemic sclerosis (SSc), a connective tissue disorder characterized by autoimmunity, vasculopathy, and extensive cutaneous and visceral fibrosis. We show that the frequency of CD8+CD28- T cells is increased in the blood and affected skin of SSc patients, independent of patient age, and correlates with the extent of skin fibrosis. We found that most skin-tropic CD8+CD28- T cells are resident in the skin lesions of patients in the early stage of the disease, exhibit an effector memory phenotype, and present a strong cytolytic activity ex vivo. Skin-resident and circulating SSc CD8+CD28- T cells produce high levels of the profibrotic cytokine IL-13, which induces collagen production by normal and SSc dermal fibroblasts. Thus, our findings indicate that CD8+CD28- T cells represent a pathogenic T-cell subset in SSc and likely play a critical role in the early stage of SSc skin disease.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Investigative Dermatology - Volume 137, Issue 5, May 2017, Pages 1042-1050
Journal: Journal of Investigative Dermatology - Volume 137, Issue 5, May 2017, Pages 1042-1050
نویسندگان
Gang Li, Adriana T. Larregina, Robyn T. Domsic, Donna B. Stolz, Thomas A. Jr., Robert Lafyatis, Patrizia Fuschiotti,