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Keloid Pathogenesis And Fibroblast Activation Study (KPS)

Mechanisms Of Keloid Fibroblast Activation And Potential Therapeutic Targets: A Tissue-Based Translational Study

Keloids are benign fibroproliferative skin disorders characterized by excessive fibroblast activation and extracellular matrix deposition. The molecular mechanisms underlying keloid formation remain incompletely understood. This prospective observational study aims to investigate the biological characteristics of keloid tissue by comparing surgically resected keloid specimens with adjacent normal skin obtained from the same patients. Histological and molecular analyses, including histopathology, polymerase chain reaction (PCR), Western blotting, and related laboratory assays, will be performed to identify signaling pathways and key regulatory factors associated with fibroblast activation. The findings may improve the understanding of keloid pathogenesis and identify potential therapeutic targets for future treatment.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Background

Keloids are fibroproliferative disorders resulting from abnormal wound healing and are characterized by excessive fibroblast proliferation and abnormal collagen deposition. Although several signaling pathways, including transforming growth factor-beta (TGF-β), have been implicated in keloid development, the underlying molecular mechanisms remain incompletely understood.

Objectives

The primary objective of this study is to investigate the molecular mechanisms associated with abnormal fibroblast activation in keloids and to identify potential therapeutic targets by comparing keloid tissue with adjacent normal skin tissue.

Study Design

This is a prospective, single-center, observational study conducted at The Fourth Affiliated Hospital, Zhejiang University School of Medicine. Adult patients diagnosed with keloids and scheduled for surgical excision will be invited to participate after providing written informed consent.

Study Procedures

Residual surgical specimens, including keloid tissue and adjacent normal skin routinely removed during surgery, will be collected without any additional surgical procedures. Samples will be de-identified before laboratory analysis. Histological examination, gene expression analysis, protein expression analysis, and signaling pathway evaluation will be performed using standard laboratory techniques, including histopathology, PCR, and Western blotting.

Outcome Measures

The primary outcome is the differential expression of fibrosis-related signaling molecules and fibroblast activation markers between keloid tissue and normal skin. Secondary outcomes include histopathological differences, collagen deposition characteristics, and identification of potential molecular therapeutic targets.

Significance

This study is expected to improve understanding of the biological mechanisms underlying keloid formation and provide a scientific basis for the development of future targeted therapies.

Undersøgelsestype

Observationel

Tilmelding (Anslået)

20

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

      • Jinhua, Kina
        • Rekruttering
        • The Fourth Affiliated Hospital of Zhejiang University School of Medicine
        • Kontakt:

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ja

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Adult patients with clinically diagnosed keloids who are scheduled to undergo surgical excision at The Fourth Affiliated Hospital, Zhejiang University School of Medicine. Residual keloid tissue and adjacent normal skin tissue obtained during routine surgery will be used for laboratory analysis after written informed consent.

Beskrivelse

Inclusion Criteria:

  • Clinically diagnosed with keloid.
  • Age 18 years or older.
  • Scheduled to undergo surgical treatment at the study hospital.
  • Able and willing to provide written informed consent.

Exclusion Criteria:

  • Severe systemic disease.
  • History of neurologic disease, alcoholism, postherpetic neuralgia, HIV infection, hypothyroidism, diabetes mellitus, or prior cancer chemotherapy.
  • Other skin diseases within 5 cm of the keloid lesion, such as eczema.
  • Systemic treatment within 7 days before enrollment or keloid-specific treatment within 6 weeks before enrollment, including intralesional corticosteroid injection, cryotherapy, topical medication, or silicone gel sheeting.
  • Hormone or immunosuppressive therapy within 3 months before enrollment.
  • Pregnancy or breastfeeding.
  • Considered unsuitable for participation by the investigator.
  • Refusal to participate in the study.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
Intervention / Behandling
Keloid Tissue Group
Tissue samples obtained from keloid lesions excised during surgery from enrolled patients.
Surgical tissue collection only, no intervention
Adjacent Normal Skin Group
Normal skin tissue obtained from the same patients during surgical procedures, used as internal control.
Surgical tissue collection only, no intervention

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Expression Levels Of Fibrosis-Related Markers
Tidsramme: Up to 2028
Comparison of expression levels of fibrosis-related and fibroblast activation markers (including TGF-β, α-SMA, collagen I, and related signaling molecules) between keloid tissue and adjacent normal skin using PCR, Western blot, and histological analysis.
Up to 2028

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Histopathological Differences Between Keloid And Normal Skin
Tidsramme: 2026-2028
Evaluation of histological differences between keloid tissue and adjacent normal skin, including collagen deposition, fibroblast density, and tissue structure changes using hematoxylin and eosin staining.
2026-2028

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

10. maj 2025

Primær færdiggørelse (Anslået)

10. maj 2028

Studieafslutning (Anslået)

30. maj 2028

Datoer for studieregistrering

Først indsendt

28. juni 2026

Først indsendt, der opfyldte QC-kriterier

28. juni 2026

Først opslået (Faktiske)

6. juli 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

6. juli 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

28. juni 2026

Sidst verificeret

1. juni 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • KY-2026-115 (Anden identifikator: The Fourth Affiliated Hospital, Zhejiang University School of Medicine)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

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