Tissue-resident Memory T Cells Expression in Melasma

NCT05698342 | Completed

• 1 other identifier: 81-21
• Study Type: observational
• Target: 20
• Locations: 1 country
• Sites: 1

Brief Summary

The treatment of melasma and the maintenance of depigmentation represent a challenge due to its frequent recurrences. Pathophysiological mechanisms and factors have been linked to melasma such as inflammation, sun exposure, increased CD4+ T lymphocytic infiltrate and IL-17 in damaged skin. Tissue-resident memory T cells (Trm), derived from naïve T lymphocytes, are associated with the recurrence of lesions at the same sites but they have not been described in melasma. This a Cross-sectional, prospective analytical study. 20 female patients, 18 to 55 years of age, with diagnosis of melasma and mMASI score of at least 7, at least 1-year duration, lesional and perilesional skin biopsies were taken for PCR and DIF. The objective is to determine the transcription factors of Trm cells in malar melasma.

Conditions

Melasma

Keywords

blimp-1; runx-3; transcription factors; tissue-resident memory T cells

Outcome Measures

Primary Outcomes (1)

• Tissue-resident memory T cells

  To determine the difference in the levels of transcription factors of TRM cells in lesional skin and perilesional skin of patients with melasma

  up to 1 year

Study Arms (1)

Melasma mMASI 7

Female patients with melasma mMASI at least 7

Eligibility Criteria

• Sex: female
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

female patients with malar melasma, healthy volunteers 18 years of age and older, without previous treatment or photoprotection measures within the previous 4 weeks, who had at least 7 Modified Melasma Activity and Severity Index (mMASI) score

You may qualify if:

• female patients with malar melasma, healthy volunteers 18 years of age and older, without previous treatment or photoprotection measures within the previous 4 weeks, who had at least 7 Modified Melasma Activity and Severity Index (mMASI) score

Sponsors & Collaborators

• Universidad Autonoma de San Luis Potosí: lead

Study Sites (1)

Dermatology Department. Hospital Central "Dr. Ignacio Morones Prieto"

San Luis Potosí City, 78290, Mexico

Location

Related Publications (9)

• Filoni A, Mariano M, Cameli N. Melasma: How hormones can modulate skin pigmentation. J Cosmet Dermatol. 2019 Apr;18(2):458-463. doi: 10.1111/jocd.12877. Epub 2019 Feb 18.

  PMID: 30779300 RESULT

• Hernandez-Barrera R, Torres-Alvarez B, Castanedo-Cazares JP, Oros-Ovalle C, Moncada B. Solar elastosis and presence of mast cells as key features in the pathogenesis of melasma. Clin Exp Dermatol. 2008 May;33(3):305-8. doi: 10.1111/j.1365-2230.2008.02724.x.

  PMID: 18419607 RESULT

• Rodriguez-Arambula A, Torres-Alvarez B, Cortes-Garcia D, Fuentes-Ahumada C, Castanedo-Cazares JP. CD4, IL-17, and COX-2 Are Associated With Subclinical Inflammation in Malar Melasma. Am J Dermatopathol. 2015 Oct;37(10):761-6. doi: 10.1097/DAD.0000000000000378.

  PMID: 26381025 RESULT

• Lee HC, Thng TG, Goh CL. Oral tranexamic acid (TA) in the treatment of melasma: A retrospective analysis. J Am Acad Dermatol. 2016 Aug;75(2):385-92. doi: 10.1016/j.jaad.2016.03.001. Epub 2016 May 17.

  PMID: 27206758 RESULT

• Tokura Y, Phadungsaksawasdi P, Kurihara K, Fujiyama T, Honda T. Pathophysiology of Skin Resident Memory T Cells. Front Immunol. 2021 Feb 3;11:618897. doi: 10.3389/fimmu.2020.618897. eCollection 2020.

  PMID: 33633737 RESULT

• Watanabe R, Gehad A, Yang C, Scott LL, Teague JE, Schlapbach C, Elco CP, Huang V, Matos TR, Kupper TS, Clark RA. Human skin is protected by four functionally and phenotypically discrete populations of resident and recirculating memory T cells. Sci Transl Med. 2015 Mar 18;7(279):279ra39. doi: 10.1126/scitranslmed.3010302.

  PMID: 25787765 RESULT

• Zou Y, Yuan H, Zhou S, Zhou Y, Zheng J, Zhu H, Pan M. The Pathogenic Role of CD4+ Tissue-Resident Memory T Cells Bearing T Follicular Helper-Like Phenotype in Pemphigus Lesions. J Invest Dermatol. 2021 Sep;141(9):2141-2150. doi: 10.1016/j.jid.2021.01.030. Epub 2021 Mar 16.

  PMID: 33741391 RESULT

• Fraczek A, Owczarczyk-Saczonek A, Placek W. The Role of TRM Cells in the Pathogenesis of Vitiligo-A Review of the Current State-Of-The-Art. Int J Mol Sci. 2020 May 18;21(10):3552. doi: 10.3390/ijms21103552.

  PMID: 32443482 RESULT

• Adachi T, Kobayashi T, Sugihara E, Yamada T, Ikuta K, Pittaluga S, Saya H, Amagai M, Nagao K. Hair follicle-derived IL-7 and IL-15 mediate skin-resident memory T cell homeostasis and lymphoma. Nat Med. 2015 Nov;21(11):1272-9. doi: 10.1038/nm.3962. Epub 2015 Oct 19.

  PMID: 26479922 RESULT

Biospecimen

Retention: SAMPLES WITH DNA

two- 3 mm punch skin biopsies from each patient

MeSH Terms

Conditions

Melanosis

Condition Hierarchy (Ancestors)

Hyperpigmentation; Pigmentation Disorders; Skin Diseases; Skin and Connective Tissue Diseases

Study Design

• Study Type: observational
• Observational Model: CASE ONLY
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Clinical and research professor in Dermatology

Study Record Dates

• First Submitted: January 15, 2023
• First Posted: January 26, 2023
• Study Start: July 1, 2021
• Primary Completion: July 30, 2022
• Study Completion: December 20, 2022
• Last Updated: January 26, 2023

Record last verified: 2023-01

Data Sharing

• IPD Sharing: Will not share

Locations

ME (1)