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The Immunogenetics of Acne. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1367:137-154. [DOI: 10.1007/978-3-030-92616-8_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Heng AHS, Say YH, Sio YY, Ng YT, Chew FT. Gene variants associated with acne vulgaris presentation and severity: a systematic review and meta-analysis. BMC Med Genomics 2021; 14:103. [PMID: 33849530 PMCID: PMC8045239 DOI: 10.1186/s12920-021-00953-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 03/29/2021] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Multiple factors have been attributed to acne vulgaris predisposition and individual variations in the severity of skin symptoms, and genetics stood out as one of the major factors. METHODS We performed a systematic review on the genes and their variants that have been investigated for association with acne presentation and severity. A random-effect meta-analysis using the allele model (minor allele vs. major allele) was also conducted to provide an overall estimation of risk effects of frequently reported gene variants. This included a subset data of 982 acne cases and 846 controls extracted from our existing GWAS database on various allergic and skin diseases among Singapore Chinese. RESULTS Systematic review of 51 articles covering Asians and Caucasians found 60 genes/loci and their 100 variants implicated in acne; majority of them were in the intron, coding region/missense, and promoter regions. The commonly studied candidate genes/gene families include tumor necrosis factor (TNF), and the interleukin (IL) and cytochrome P450 (CYP) gene families. Our meta-analysis showed that most of the analyzed gene variants exhibited insignificant pooled odds ratio (pOR) and significant heterogeneity between studies. Nevertheless, we found that TNF rs1800629 A allele carriers and CYP17A1 rs743572 T allele carriers had significantly reduced mild acne risk [pOR: 0.60; 95% Confidence Interval (CI): 0.33-0.86] and severe acne risk (pOR: 0.59; 95% CI: 0.40-0.79), respectively, across populations. Overall, FST (follistatin) rs629725 A allele poses a significantly modest increased risk for acne presentation (pOR: 1.19, 95% CI: 1.14, 1.23), but neither TIMP2 (TIMP metallopeptidase inhibitor 2) rs8179090 nor CYP1A1 rs4646903 (pOR: 0.96, 95% CI: 0.80-1.12; pOR: 0.95, 95% CI: 0.83, 1.08), respectively. We discovered 15 novel SNPs in the 3' UTR region of the Toll-like Receptor 4 gene (TLR4) associated with acne presentation. CONCLUSIONS This systematic review and meta-analysis suggest that genes influencing inflammatory responses, specifically TNF, and genes influencing the function and activity of sebaceous glands, specifically CYP17A1 and FST, have potential risk variants for acne presentation and severity across populations. Understanding the genetic susceptibility factors and biological pathways involved in the pathogenesis of acne will help us to gain insights into developing effective acne treatments.
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Affiliation(s)
- Anna Hwee Sing Heng
- Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Department of Biological Sciences, Faculty of Science, National University of Singapore, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, Singapore, 117543, Singapore
| | - Yee-How Say
- Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Department of Biological Sciences, Faculty of Science, National University of Singapore, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, Singapore, 117543, Singapore
| | - Yang Yie Sio
- Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Department of Biological Sciences, Faculty of Science, National University of Singapore, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, Singapore, 117543, Singapore
| | - Yu Ting Ng
- Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Department of Biological Sciences, Faculty of Science, National University of Singapore, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, Singapore, 117543, Singapore
| | - Fook Tim Chew
- Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Department of Biological Sciences, Faculty of Science, National University of Singapore, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, Singapore, 117543, Singapore.
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Aktaş Karabay E, Saltık ZA, Unay Demirel Ö. Evaluation of serum
FoxO1
,
mTORC1
,
IGF
‐1,
IGFBP
‐3 levels, and metabolic syndrome components in patients with acne vulgaris: A prospective case‐control study. Dermatol Ther 2020; 33:e13887. [DOI: 10.1111/dth.13887] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/10/2020] [Accepted: 06/18/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Ezgi Aktaş Karabay
- Faculty of Medicine, Department of Dermatology and Venereology Bahçeşehir University Istanbul Turkey
| | | | - Özlem Unay Demirel
- Faculty of Medicine, Department of Clinical Biochemistry Bahçeşehir University Istanbul Turkey
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El-Tahlawi S, Ezzat Mohammad N, Mohamed El-Amir A, Sayed Mohamed H. Survivin and insulin-like growth factor-I: potential role in the pathogenesis of acne and post-acne scar. Scars Burn Heal 2019; 5:2059513118818031. [PMID: 30675395 PMCID: PMC6330724 DOI: 10.1177/2059513118818031] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUNDS/OBJECTIVES Acne is an inflammatory disease of the pilosebaceous unit (PSU). The over-expression of survivin and insulin-like growth factor (IGF)-I in some fibrotic disorders suggests a possible implication in the pathogenesis of acne and or post-acne scar. We aimed to evaluate their potential role in pathogenesis in acne and post-acne scar. METHODS Serum survivin and IGF-I levels were estimated in 30 patients with acne and post-acne scar compared to 30 controls. RESULTS There was a statistically significant difference in survivin and IGF-I levels between controls and patients (P < 0.05). However, there was no linear correlation between survivin and IGF-I. CONCLUSIONS Survivin and IGF-I could have a possible role in the pathogenesis of active acne and in post-inflammatory acne scar.
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Agamia N, Abdallah D, Sorour O, Mourad B, Younan D. Skin expression of mammalian target of rapamycin and forkhead box transcription factor O1, and serum insulin‐like growth factor‐1 in patients with acne vulgaris and their relationship with diet. Br J Dermatol 2016; 174:1299-307. [DOI: 10.1111/bjd.14409] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/15/2016] [Indexed: 01/11/2023]
Affiliation(s)
- N.F. Agamia
- Department of Dermatology, Venereology and Andrology Faculty of Medicine Alexandria University Alexandria Egypt
| | - D.M. Abdallah
- Department of Pathology Faculty of Medicine Alexandria University Alexandria Egypt
| | - O. Sorour
- Department of Dermatology, Venereology and Andrology Faculty of Medicine Alexandria University Alexandria Egypt
| | - B. Mourad
- Department of Dermatology, Venereology and Andrology Faculty of Medicine Tanta University Tanta Egypt
| | - D.N. Younan
- Department of Clinical Pathology Faculty of Medicine Alexandria University Alexandria Egypt
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