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Circulating Podocalyxin, Tumstatin/Col-IVα3 and Chitinase 1: New Culprits in Vitiligo Occurrence
1Department of Dermatology, Gozde Academy Hospitals, Malatya, Turkey.
Introduction:
The roles of anti-adhesive podocalyxin (PODXL), anti-angiogenetic tumstatin/ Col-IVα3 and neuro-inflammation and innate immunity modulator Chitinase 1 (CHIT-1) in the etiology of vitiligo have not been studied yet.
Objectives:
This study was planned to detect changes in serum PODXL, tumstatin/Col-IVα3 and CHIT1 levels in vitiligo patients.
Methods:
This case-controlled study was performed on a total of 50 patients, 25 with vitiligo and 25 healthy controls. Participants in the vitiligo and control groups were matched in pairs for age and sex. At least 8-10 hours of overnight fasting, venous blood samples were taken from the participants in both groups and serum levels of podocalyxin, tumstatin/Col-IVα3 and CHIT 1 levels were measured by sandwich enzyme immunoassay.
Results:
In the classification made according to the vitiligo European Task Force evaluation criteria, 18 of 25 vitiligo patients were in the slowly progressive phase and 7 patients were in the active progressive phase. Serum podocalyxin levels increased significantly in the vitiligo group compared to the controls (7.03±2.09 ng/ml vs. 4.99±1.20 ng/ml, p<0.02). However, serum tumstatin levels in vitiligo patients showed a significantly lower course compared to controls (4.88±1.76 ng/ml vs. 6.05±2.19 ng/nl, p<0.03). Serum CHIT-1 levels of vitiligo patients (42.4±7.22 ng/ml) were found to be significantly higher than the serum levels of the control group (34.5±5.33 ng/ml) (p<0.01).
Conclusion:
High podocalyxin and CHIT1versus low tumstatin levels are new biomarkers that support the role of anti-adhesive, anti-angiogenic and neuroinflammatory pathways in the formation of vitiligo.
Insights
Vitiligo patients show elevated serum podocalyxin (PODXL) and chitinase 1 (CHIT-1) levels, alongside decreased tumstatin. These findings highlight potential roles for anti-adhesive, anti-angiogenic, and neuroinflammatory pathways in vitiligo development.
Area of Science:
- Dermatology
- Immunology
- Biochemistry
Background:
- The roles of podocalyxin (PODXL), tumstatin/Col-IVα3, and Chitinase 1 (CHIT-1) in vitiligo etiology remain uninvestigated.
- PODXL acts as an anti-adhesive molecule, tumstatin as an anti-angiogenetic factor, and CHIT-1 modulates neuro-inflammation and innate immunity.
Purpose of the Study:
- To investigate serum levels of PODXL, tumstatin/Col-IVα3, and CHIT1 in vitiligo patients.
- To identify potential biomarkers associated with vitiligo pathogenesis.
Main Methods:
- A case-controlled study involving 25 vitiligo patients and 25 age- and sex-matched healthy controls.
- Serum samples were collected after overnight fasting.
- Sandwich enzyme immunoassay was used to quantify serum levels of PODXL, tumstatin/Col-IVα3, and CHIT1.
Main Results:
- Vitiligo patients exhibited significantly higher serum PODXL levels compared to controls (p<0.02).
- Serum tumstatin levels were significantly lower in vitiligo patients than in controls (p<0.03).
- Serum CHIT-1 levels were significantly elevated in vitiligo patients compared to controls (p<0.01).
Conclusions:
- Elevated serum PODXL and CHIT1, with decreased tumstatin, suggest novel biomarkers for vitiligo.
- These findings support the involvement of anti-adhesive, anti-angiogenic, and neuroinflammatory pathways in vitiligo formation.
