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This study found that type III collagen was significantly more abundant in the recovering traumatic skin of guinea pigs compared to normal skin, indicating it may play a role in tissue repair.

Collagen XVIII is crucial for maintaining tissue structure and function in the brain, kidneys, and hair.

This study demonstrates that collagen XVII is crucial for normal glomerular development, is present in normal colon epithelia, and plays a role in carcinogenesis in colorectal and squamous cell cancers.

In this study, recombinant type III collagen was found to promote fibroblast proliferation and migration, suggesting potential anti-aging and repairing effects, although it was only effective in significantly inhibiting IL-6, not TNF-α, secretion.

This review explores the physiological roles of collagen XVII in the epidermis, its involvement in stem cell maintenance, and its connections with signaling pathways, but it reports no new results.

This study observed that Fraser’s dolphins exhibit remarkable skin healing abilities, with type I collagen prevalent in normal skin and type III collagen emerging during early wound healing before returning to normal configuration, suggesting insights for human clinical wound management.

This study observed that cutaneous microwounds created by fractional photothermolysis heal differently from typical wounds, displaying rapid re-epithelialization and limited inflammation, which may help reduce scar formation by delaying collagen remodeling and minimizing myofibroblast activation.

This study observed that mink dermal collagen fibrils undergo structural changes during the hair cycle, with increased fiber thickness and bundle density as minks grow.

In this study, researchers conducted additional IHC staining on equine skin sections and found that collagen type III primarily labels the extracellular matrix, while anti-PDGFR-antibody staining highlights cells with long-shaped processes mainly arranged around hair follicles.

This study presents a method using polarization-sensitive optical coherence tomography to accurately assess the depth of burn wound damage in the dermal collagen matrix, potentially improving diagnosis beyond traditional visual methods.

In this study, researchers identified a collagen fragment, sample-1707, expressed in E. coli, which forms nanofibers and promotes blood clotting, osteoblast differentiation, and skin cell regeneration, making it a promising biomaterial for skin care, with a large-scale production yield of 600 mg/L.

This animal study found that transparent porcine-derived Type I atelocollagen increases skin thickness and regenerates elastic fibers in aged mice, suggesting its potential as a skin booster for rejuvenation.

This chapter discusses various aspects of collagen, proposing "extended collagen carential disease" as a new concept tied to nutritional deficiencies, notably Vitamin C's role in maintaining collagen health.

This study investigated various animal tissues from adult mice and embryonic chicks, finding that tissue stiffness follows a sub-linear power law relationship with Collagen-I levels, consistent with cellularized collagen gels but not acellular ones.

This study observed that 67 kDa keratin was expressed homogeneously only in epidermis derived from hair follicle explants, differing from other culture methods where expression was delayed and patchy.

This report describes common skin CT features of rosacea identified using a reflective confocal microscope, facilitating more objective diagnosis but highlights the need for further clinical exploration.

This study found that type XVII collagen is crucial for regulating epidermal cells' proliferation in mice and may be a promising target for anti-aging skin treatments.

This study found that type XVII collagen (COL17) regulates interfollicular epidermis proliferation in both neonatal and aged mice through Wnt signaling, suggesting its potential as a target for anti-aging skin strategies.

This review discusses the role of collagen XVII in maintaining stem cell niches and its impact on skin aging and wound repair, without reporting new clinical results.

This study used a novel fluorescent tagging method in mice to observe collagen IV dynamics during hair follicle development, revealing that alterations in basement membrane turnover can influence epithelial progenitor cell behavior and organ morphology by affecting cell proliferation and movement.

Type XII and XIV collagens help maintain hair follicle structure in bovine skin.

This laboratory study found that collagen matrices with high-sulfated hyaluronan may enhance the cultivation of human keratinocytes and melanocytes from hair follicles for epidermal graft development.

This study reported that connective tissue nevi show distinctive dermoscopic and RCM features, with RCM being particularly helpful for diagnosing lesions of less than one year in duration.

This review highlights that collagen XVIIα1's role in maintaining dermal-epidermal junction integrity and hair follicle stem cell maintenance is compromised with age due to reduced levels and increased processing, potentially affecting skin and hair aging.

Macrophages help break down collagen around hair follicles during hair growth.

This study found that COL17 deficiency in neonatal mice causes abnormal skin cell proliferation due to disrupted Wnt signaling, while replenishing or overexpressing COL17 can reverse this effect in both neonatal and aged skin.

This review suggests that although hydrolyzed collagen peptides with certain supplements may improve skin elasticity and joint function, evidence for collagen's anti-aging and regenerative benefits remains inconsistent.