Mesenchymal Stem Cell (MSC) Secretome and Vitamin C Combination Additively Enhance Epidermal Keratinocyte Proliferation and Morphology: Evidence from Intrinsic and Extrinsic Rat Skin Aging Models

Olivia Belinda; Veronika M Sidharta; Komang A Wahyuningsih; Reynelda  J Sagala; Christania Christania; Vallery B Setiawan; Nadia A Sjoekri; Renata Angelia; Laurie Marcella

doi:10.28932/jmh.v8i1.13091

Authors

Olivia Belinda School of Medicine and Health Sciences, Atma Jaya Catholic University of Indonesia, Jakarta, Indonesia
Veronika M Sidharta Department of Histology, School of Medicine and Health Sciences, Atma Jaya Catholic University of Indonesia, Jakarta, Indonesia
Komang A Wahyuningsih Department of Histology, School of Medicine and Health Sciences, Atma Jaya Catholic University of Indonesia, Jakarta, Indonesia
Reynelda J Sagala Department of Pharmacy, School of Medicine and Health Sciences, Atma Jaya Catholic University of Indonesia, Jakarta, Indonesia
Christania Christania School of Medicine and Health Sciences, Atma Jaya Catholic University of Indonesia, Jakarta, Indonesia
Vallery B Setiawan School of Medicine and Health Sciences, Atma Jaya Catholic University of Indonesia, Jakarta, Indonesia
Nadia A Sjoekri School of Medicine and Health Sciences, Atma Jaya Catholic University of Indonesia, Jakarta, Indonesia
Renata Angelia School of Medicine and Health Sciences, Atma Jaya Catholic University of Indonesia, Jakarta, Indonesia
Laurie Marcella School of Medicine and Health Sciences, Atma Jaya Catholic University of Indonesia, Jakarta, Indonesia

DOI:

https://doi.org/10.28932/jmh.v8i1.13091

Keywords:

skin aging, keratinocytes, mesenchymal stem cell secretome, vitamin C, in vivo

Abstract

Skin aging, driven by intrinsic and extrinsic factors, impairs keratinocyte proliferation and morphology. Mesenchymal stem cell (MSC) secretome and vitamin C possess regenerative and anti-aging properties that may counteract these changes. This study aimed to evaluate the additive effects of MSC secretome and vitamin C on keratinocyte proliferation and morphology in intrinsic and extrinsic rat skin aging models. Thirty-two male Sprague-Dawley rats were randomly divided into eight groups: intrinsic aging control (IAC; D-galactose-induced), extrinsic aging control (EAC; UVB-induced), MSC secretome-treated (IS and ES; 0.2 mL MSC secretome), vitamin C-treated (IC and EC; 0.2 mL vitamin C at 75 μg/mL), and combination-treated (ISC and ESC; 0.1 mL of each treatment). Treatments were administered intradermally once weekly for four weeks. Histological analysis assessed keratinocyte count and size in the stratum granulosum and stratum basale. Combination treatment (ISC, ESC) produced the most pronounced and statistically significant increases in keratinocyte counts and reductions in cell size across both strata (p < 0.01 to ≤ 0.001), whereas individual treatments showed variable effects, with most failing to reach statistical significance. These findings suggest that combined MSC secretome and vitamin C treatment produces the most pronounced histological effects in keratinocyte counts and size, likely reflecting complementary actions, and supports its potential as a cell-free anti-aging therapy.

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