Inflammatory landscape in Xeroderma pigmentosum patients with cutaneous melanoma

Chikhaoui, Asma (author), Režen, Tadeja (author), Komel, Radovan (author), Yacoub-Youssef, Houda (author)

Xeroderma pigmentosum (XP) is a DNA repair disease that predisposes to early skin cancers as cutaneous melanoma. Melanoma microenvironment contains inflammatory mediators, which would be interesting biomarkers for the prognosis or for the identification of novel therapeutic targets. We used a PCR array to evaluate the transcriptional pattern of 84 inflammatory genes in melanoma tumors obtained from XP patients (XP‑Mel) and in sporadic melanoma (SP‑Mel) compared to healthy skin. Commonly expressed inflammatory genes were further explored via GTEx and GEPIA databases. The differentially expressed inflammatory genes in XP were compared to their expression in skin exposed to UVs, and evaluated on the basis of the overall survival outcomes of patients with melanoma. Monocyte subsets of patients with SP‑Mel, XP and healthy donors were also assessed. PCR array data revealed that 34 inflammatory genes were under‑expressed in XP‑Mel compared to SP‑Mel. Differentially expressed genes that were common in XP‑Mel and SP‑Mel were correlated with the transcriptomic datasets from GEPIA and GTEx and highlighted the implication of KLK1 and IL8 in the tumorigenesis. We showed also that in XP‑Mel tumors, there was an overexpression of KLK6 and KLK10 genes, which seems to be associated with a bad survival rate. As for the innate immunity, we observed a decrease of intermediate monocytes in patients with SP‑Mel and in XP. We highlight an alteration in the immune response in XP patients. We identified candidate biomarkers involved in the tumorigenesis, and in the survival of patients with melanoma. Intermediate monocyte’s in patients at risk could be a prognostic biomarker for melanoma outcome.

• Language: English
• Keywords: xeroderma pigmentosum, cutaneous melanoma, inflammatory mediators, biomarkers, melanoma, monocytes and macrophages, nucleotide excision repair
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: MF - Faculty of Medicine
• Publication status: Published
• Publication version: Version of Record
• Year: 2022
• Number of pages: 13 str.
• Numbering: Vol. 12, art. 13854
• PID: 20.500.12556/RUL-165904
• UDC: 616-006
• ISSN on article: 2045-2322
• DOI: 10.1038/s41598-022-17928-z
• COBISS.SI-ID: 121891075
• Publication date in RUL: 13.12.2024

Record is a part of a journal

• Title: Scientific reports
• Shortened title: Sci. rep.
• Publisher: Nature Publishing Group
• ISSN: 2045-2322
• COBISS.SI-ID: 18727432

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: xeroderma pigmentosum, kožni melanom, vnetni mediatorji