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Related Experiment Video

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Visualizing Scar Development Using SCAD Assay - An Ex-situ Skin Scarring Assay

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Skin Microbiota and Pathological Scars: A Bidirectional Two-Sample Mendelian Randomization Study.

Ying Huang¹, Qinghua Yang¹

¹Department of General Plastic Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China.

Journal of Cosmetic Dermatology

|December 10, 2024

Summary

This summary is machine-generated.

Certain skin microbes may protect against pathological scars like hypertrophic scars and keloids. This research explores the causal links between skin microbiota and scar development, offering new insights for treatment.

Keywords:

Mendelian randomization hypertrophic scars keloid skin microbiota

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Area of Science:

Dermatology
Microbiology
Genetics

Background:

Pathological scars (PSs) arise from abnormal skin repair, inflammation, and fibrosis, impacting millions globally.
The role of skin microbiota (SM) in skin inflammation and healing is recognized, but its specific connection to PSs is not well understood.

Purpose of the Study:

To investigate potential causal relationships between skin microbiota (SM) and two common types of pathological scars: hypertrophic scars (HSs) and keloids.

Main Methods:

A bidirectional two-sample Mendelian randomization (MR) analysis was performed using genetic data for SM, HSs, and keloids.
The inverse variance weighted (IVW) method served as the primary analysis, supplemented by other MR techniques.
False discovery rate (FDR) correction was applied to manage multiple testing.

Main Results:

The family Moraxellaceae and order Pseudomonadales showed a significant protective effect against keloids.
The class Betaproteobacteria and genus Bacteroides suggested a protective role for HSs and keloids, respectively.
Limited evidence indicated that the order Actinomycetales may increase keloid risk, while keloids might negatively impact the class Gammaproteobacteria.

Conclusions:

This study provides evidence supporting causal links between specific components of the skin microbiota and the development of pathological scars.
These findings lay the groundwork for future research into microorganism-skin interactions and potential clinical applications for scar management.