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The use of CO₂ laser in vulvar lichen sclerosus treatment - molecular evidence
Adrianna Marzec1, Anita Olejek1, Kamila Stopinska1
1Medical University of Silesia, Katowice, Poland.
Objectives:
Vulvar lichen sclerosus is chronic and difficult to treat disorder, which often is recurrent and leads to multiple complications. The limited efficacy of pharmacologic treatment directed the search for new therapies including use of CO₂ laser. The aim of the study was to provide rationale for the use of CO2 laser in treatment of vulvar lichen sclerosus.
Material And Methods:
Two patients with diagnosed LS were recruited for the study. Vulvar biopsies were taken taken before CO₂ laser application and then 3 months later. We assessed the following genes: COL1A, COL1A2, COL3A1, COL5A1, COL5A2, COL5A3, ELN, ECM1, HSPA1A, HSPA1B, SERPINH1, TLL1, TP53, BMP1. We also assessed patients' quality of life by VuAS scale before and after treatment.
Results:
In both patients we observed decreased clinical symptoms observed by an experienced gynecologist as well as significant changes in gene expression before and after laser treatment.
Conclusions:
Treatment with CO₂ laser can be alternatively considered in patients with vulvar lichen sclerosus.
Insights
Vulvar lichen sclerosus treatment with CO₂ laser therapy improved clinical symptoms and altered gene expression. This study explored collagen, elastin, heat shock proteins, and p53 in patients undergoing this novel therapy.
Area of Science:
- Dermatology and Gynecologic Oncology
- Molecular Biology and Genetics
Background:
- Vulvar lichen sclerosus is a chronic inflammatory condition with limited treatment options.
- Recurrence and complications are common, necessitating exploration of alternative therapies.
- CO₂ laser therapy is emerging as a potential treatment modality.
Purpose of the Study:
- To evaluate the efficacy of CO₂ laser therapy in treating vulvar lichen sclerosus.
- To investigate the molecular changes, specifically gene expression of collagen, elastin, heat shock proteins, and p53, following CO₂ laser treatment.
Main Methods:
- Case study involving two patients diagnosed with vulvar lichen sclerosus.
- Treatment administered: CO₂ laser therapy.
- Analysis of gene expression (collagen, elastin, heat shock proteins, p53) before and after treatment.
Main Results:
- Both patients showed a decrease in clinical symptoms of vulvar lichen sclerosus.
- Significant alterations in the gene expression of collagen, elastin, heat shock proteins, and p53 were observed post-treatment.
- The study provides preliminary evidence of molecular changes associated with CO₂ laser therapy.
Conclusions:
- CO₂ laser therapy demonstrates potential for improving clinical outcomes in vulvar lichen sclerosus.
- The observed gene expression changes suggest a molecular mechanism underlying the therapeutic effect of CO₂ laser.
- Further research with larger cohorts is warranted to confirm these findings.

