{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T15:44:29Z","timestamp":1790178269267,"version":"4.1.0"},"reference-count":49,"publisher":"Oxford University Press (OUP)","issue":"10","license":[{"start":{"date-parts":[[2023,2,23]],"date-time":"2023-02-23T00:00:00Z","timestamp":1677110400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"funder":[{"name":"Indian Council of Medical Research-Rajendra Memorial Research Institute of Medical Sciences","award":["INT-160-BAS\/2019"],"award-info":[{"award-number":["INT-160-BAS\/2019"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2023,5,12]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:sec>\n                  <jats:title>Background<\/jats:title>\n                  <jats:p>Post\u2013kala-azar dermal leishmaniasis (PKDL), a dermal form of the disease, occurs in some visceral leishmaniasis (VL) patients following treatment. The PKDL disease mechanism is not yet clearly understood. Here we have studied the role of dermal fibroblasts in VL and PKDL disease mechanism.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods<\/jats:title>\n                  <jats:p>Dermal fibroblasts were grown from skin biopsy explants collected from individual VL and PKDL patients and healthy controls. Fibroblasts from the third passage were subjected to RNA sequencing to analyze differentially expressed genes (DEGs). Significantly important genes were further validated by reverse transcription polymerase chain reaction (RT-PCR) and enzyme-linked immunosorbent assay (ELISA).<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>Transcriptome analysis of PKDL versus VL identified 516 DEGs (263 were overrepresented and 253 were underrepresented in PKDL). Among the top hub genes, MMP2, IL1B, CXCL8, IFIH1, NFKB1A, IL6, ISG15, and EGFR were underexpressed and ACTB, HSP90AA1, RAB7A, and RPS27A were overexpressed in PKDL compared to VL.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusions<\/jats:title>\n                  <jats:p>Our data indicate that PKDL fibroblasts may present antigens through the MHC I pathway activating CD8+ T-cell mediated response, while VL fibroblasts express nuclear factor-\u03baB (NF\u03baB)-mediated chemokines, IL1B, IL6, and IL8, resulting in the recruitment of natural killer (NK)-cells and monocytes to the site of infection, leading to the clearance of parasite from the skin and visceralization of the disease.<\/jats:p>\n               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