Genetics of Tissue Repair
Tissue repair involves sequential phases of haemostasis, inflammation, proliferation, and remodelling following injury or infection. Genetic variants in growth factor signalling, extracellular matrix remodelling, and immune resolution pathways influence tissue repair quality and speed.
This page is for educational and informational purposes only. Not a diagnostic tool. Always consult a qualified healthcare provider.
What is Tissue Repair?
After tissue injury — whether from infection, inflammation, or physical damage — the body initiates a coordinated repair response. Dysregulated tissue repair contributes to fibrosis (excessive scarring), impaired healing, and chronic inflammation. In Long COVID, impaired resolution of lung inflammation, persistent endothelial damage, and abnormal tissue remodelling may reflect dysregulated repair processes. Genetic variants in TGF-beta signalling, growth factor receptors, matrix metalloproteinases, and pro-resolution mediator pathways may modify individual tissue repair capacity.
Biological pathways commonly discussed in relation to Tissue Repair
Research into Tissue Repair and Wound Healing has highlighted several biological pathways that may be relevant. Genetic variants within these pathways may influence individual susceptibility, symptom severity, or the trajectory of the condition.
Growth Factor Signalling
Growth factors (TGF-beta, EGF, FGF2, VEGF) drive cell proliferation and differentiation during repair. Variants in growth factor genes and their receptors influence repair signal intensity.
Matrix Remodelling
MMPs (MMP2, MMP9) and their inhibitors (TIMPs) balance extracellular matrix degradation and synthesis during tissue remodelling. Imbalance may lead to either fibrosis or impaired structural repair.
Pro Resolution Mediators
Specialised pro-resolving mediators (SPMs) including lipoxins, resolvins, and protectins actively terminate inflammation and promote tissue repair. Variants in ALOX5, ALOX15, and COX2 influence these pathways.
Angiogenesis
New blood vessel formation is essential for tissue repair. VEGFA variants influence angiogenic capacity and may affect tissue revascularisation following ischaemic or inflammatory injury.
Key genes studied in relation to Tissue Repair
The following genes have been studied in relation to Tissue Repair and Wound Healing. These genes span the biological pathways most commonly discussed in this area of research.
12 genes total studied in relation to Tissue Repair across the ChronicDNA dataset.
Genetic variants commonly discussed
The following genetic variants (SNPs) are found in genes that have been studied in relation to Tissue Repair. Each variant represents a position in the genome where individuals may carry different alleles.
22 variants total across genes studied in relation to Tissue Repair.
How personal DNA data may provide educational insights
Consumer DNA files from 23andMe, AncestryDNA, and MyHeritage contain raw SNP data. When you upload your file to ChronicDNA, the analysis engine checks your genotype against a curated panel of 80+ genes selected for their relevance to Long COVID, ME/CFS, and connected biological pathways - some of which may relate to areas such as Tissue Repair.
This is not a diagnostic service. Genetic variants do not determine whether you have Tissue Repair, nor do they predict your clinical outcomes. The report is educational - it explains which variants you carry, what the research says about them, and how they fit into the biological pathways most relevant to chronic illness. All results should be discussed with a qualified healthcare provider.
Related conditions and pathways
Tissue Repair shares biological pathways and genetic associations with the following related conditions and areas of research.
Frequently asked questions
Why does tissue repair matter in Long COVID?
Impaired resolution of inflammation and tissue damage after acute COVID-19 may contribute to ongoing organ dysfunction in Long COVID. Genetic factors influencing the switch from inflammation to repair may affect how completely tissues recover after SARS-CoV-2 infection.
Which genes are studied in relation to tissue repair?
Key genes include TGFB1, SMAD3, VEGFA, FGF2, MMP2, MMP9, TIMP1, COL1A1, and ALOX5. These cover growth factor signalling, matrix remodelling, and pro-resolution pathways.
What are pro-resolving mediators?
Specialised pro-resolving mediators (SPMs) including lipoxins, resolvins, and protectins are lipid mediators that actively terminate inflammation, promote phagocytosis of cellular debris, and facilitate tissue repair. Impaired SPM production may contribute to chronic, non-resolving inflammation.
How does angiogenesis relate to Long COVID?
New blood vessel formation is essential for restoring blood flow and nutrient delivery to damaged tissues. Variants in VEGFA and related angiogenic genes may influence the regeneration of microvascular beds damaged by COVID-19 infection.
Explore DNA insights
If you already have DNA data from 23andMe, AncestryDNA, or MyHeritage, upload your raw file to ChronicDNA and receive a personalised educational report covering genes studied in relation to Tissue Repair and connected biological pathways.
Get Your Personalised DNA ReportInformational and educational only · Not a diagnostic tool · GDPR compliant
12 genes · 22 variants analysed in relation to Tissue Repair