PMID- 33605181 OWN - NLM STAT- MEDLINE DCOM- 20211021 LR - 20220107 IS - 1521-0464 (Electronic) IS - 1071-7544 (Print) IS - 1071-7544 (Linking) VI - 28 IP - 1 DP - 2021 Dec TI - Skin-specific knockdown of hyaluronan in mice by an optimized topical 4-methylumbelliferone formulation. PG - 422-432 LID - 10.1080/10717544.2021.1886376 [doi] AB - Hyaluronan (HA) is abundant in the skin; while HA can be synthesized by the synthases (HAS1-3), HAS2 is the leading contributor. Dysregulation and accumulation of HA is implicated in the pathogenesis of diseases such as keloid scarring, lymphedema and metastatic melanoma. To understand how HA synthesis contributes to skin physiology, and pathologic and fibrotic disorders, we propose the development of skin-specific HA inhibition model, which tests an optimal delivery system of topical 4-methylumbelliferone (4-MU). A design-of-experiments (DOE) approach was employed to develop an optimal 4-MU skin-delivery formulation comprising propylene glycol, ethanol, and water, topically applied to dorsal skin in male and female C57BL/6J wildtype mice to determine the effect on HAS gene expression and HA inhibition. Serum and skin samples were analyzed for HA content along with analysis of expression of HAS1-3, hyaluronidases (HYAL 1-2), and KIAA1199. Using results from DOE and response surface methodology with genetic algorithm optimization, we developed an optimal topical 4-MU formulation to result in approximately 70% reduction of HA in dorsal skin, with validation demonstrating approximately 50% reduction in HA in dorsal skin. 4-MU topical application resulted in significant decrease in skin HAS2 expression in female mice only. Histology showed thicker dermis in male mice, whereas female mice had thinner dermal layer with more adiposity; and staining for HA-binding protein showed that topical 4-MU resulted in breakdown in HA. Our data suggest a topical 4-MU formulation-based dermal HA inhibition model that would enable elucidating the skin-specific effects of HA in normal and pathologic states. FAU - Steen, Emily H AU - Steen EH AD - Department of Surgery, Division of Pediatric Surgery, Laboratory for Regenerative Tissue Repair, Texas Children's Hospital and Baylor College of Medicine, Houston, TX, USA. FAU - Short, Walker D AU - Short WD AD - Department of Surgery, Division of Pediatric Surgery, Laboratory for Regenerative Tissue Repair, Texas Children's Hospital and Baylor College of Medicine, Houston, TX, USA. FAU - Li, Hui AU - Li H AD - Department of Surgery, Division of Pediatric Surgery, Laboratory for Regenerative Tissue Repair, Texas Children's Hospital and Baylor College of Medicine, Houston, TX, USA. FAU - Parikh, Umang M AU - Parikh UM AD - Department of Surgery, Division of Pediatric Surgery, Laboratory for Regenerative Tissue Repair, Texas Children's Hospital and Baylor College of Medicine, Houston, TX, USA. FAU - Blum, Alexander AU - Blum A AD - Department of Surgery, Division of Pediatric Surgery, Laboratory for Regenerative Tissue Repair, Texas Children's Hospital and Baylor College of Medicine, Houston, TX, USA. FAU - Templeman, Natalie AU - Templeman N AD - Department of Surgery, Division of Pediatric Surgery, Laboratory for Regenerative Tissue Repair, Texas Children's Hospital and Baylor College of Medicine, Houston, TX, USA. FAU - Nagy, Nadine AU - Nagy N AD - Department of Medicine, Division of Infectious Diseases, Stanford University School of Medicine, Stanford, CA, USA. FAU - Bollyky, Paul L AU - Bollyky PL AD - Department of Medicine, Division of Infectious Diseases, Stanford University School of Medicine, Stanford, CA, USA. FAU - Keswani, Sundeep G AU - Keswani SG AD - Department of Surgery, Division of Pediatric Surgery, Laboratory for Regenerative Tissue Repair, Texas Children's Hospital and Baylor College of Medicine, Houston, TX, USA. FAU - Balaji, Swathi AU - Balaji S AD - Department of Surgery, Division of Pediatric Surgery, Laboratory for Regenerative Tissue Repair, Texas Children's Hospital and Baylor College of Medicine, Houston, TX, USA. LA - eng GR - R01 GM111808/GM/NIGMS NIH HHS/United States PT - Journal Article PL - England TA - Drug Deliv JT - Drug delivery JID - 9417471 RN - 059QF0KO0R (Water) RN - 3K9958V90M (Ethanol) RN - 3T5NG4Q468 (Hymecromone) RN - 6DC9Q167V3 (Propylene Glycol) RN - 9004-61-9 (Hyaluronic Acid) RN - EC 3.2.1.35 (Hyaluronoglucosaminidase) SB - IM MH - Administration, Cutaneous MH - Animals MH - *Drug Delivery Systems MH - Ethanol/chemistry MH - Female MH - Gene Knockdown Techniques MH - Hyaluronic Acid/*metabolism MH - Hyaluronoglucosaminidase/*genetics MH - Hymecromone/*administration & dosage/pharmacology MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Propylene Glycol/chemistry MH - Water/chemistry PMC - PMC7899664 OTO - NOTNLM OT - 4-methylumbelliferone (4-MU) OT - Hyaluronic acid OT - genetic algorithm OT - hyaluronan OT - inhibition OT - response surface methodology OT - topical COIS- No potential conflict of interest was reported by the author(s). EDAT- 2021/02/20 06:00 MHDA- 2022/01/06 06:00 PMCR- 2021/02/19 CRDT- 2021/02/19 08:38 PHST- 2021/02/19 08:38 [entrez] PHST- 2021/02/20 06:00 [pubmed] PHST- 2022/01/06 06:00 [medline] PHST- 2021/02/19 00:00 [pmc-release] AID - 1886376 [pii] AID - 10.1080/10717544.2021.1886376 [doi] PST - ppublish SO - Drug Deliv. 2021 Dec;28(1):422-432. doi: 10.1080/10717544.2021.1886376.