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Glossary Collagen Expression

process by which cells produce and release structural protein collagen

Collagen expression refers to the process by which cells produce and release collagen, a key structural protein that provides strength and elasticity to tissues like skin, hair, and connective tissues. This process is crucial for maintaining the integrity and function of these tissues, and abnormalities in collagen expression can lead to conditions such as skin aging, scarring, and hair loss.

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Effects of Food-Derived Collagen Peptides on the Expression of Keratin and Keratin-Associated Protein Genes in Mouse Skin

research Effects of Food-Derived Collagen Peptides on the Expression of Keratin and Keratin-Associated Protein Genes in the Mouse Skin

11 citations , January 2015 in “Skin pharmacology and physiology”

In this study, oral collagen peptides increased certain gene expressions related to epidermis development and the hair cycle in hairless mice skin, suggesting potential links to hair health.

research Supplementary Material for: Effects of Food-Derived Collagen Peptides on the Expression of Keratin and Keratin-Associated Protein Genes in the Mouse Skin

January 2017 in “OPAL (Open@LaTrobe) (La Trobe University)”

This study found that oral collagen peptides increased the expression of genes related to epidermal and hair cycle development in hairless mouse skin.

research Supplementary Material for: Effects of Food-Derived Collagen Peptides on the Expression of Keratin and Keratin-Associated Protein Genes in the Mouse Skin

January 2017

This study found that oral collagen peptides increased expression of genes associated with epidermis development and the hair cycle in hairless mice, providing insights into their potential skin benefits.

research Expression of Basement Membrane Proteins and Interstitial Collagens in Dermal Papillae of Human Hair Follicles

85 citations , January 1991 in “Journal of Investigative Dermatology”

Recombinant Humanized Collagen Combined With Nicotinamide Increases Expression of Rat Basement Membrane Proteins and Promotes Hair Growth

research Recombinant humanized collagen combined with nicotinamide increases the expression level of rat basement membrane proteins and promotes hair growth

June 2025 in “Frontiers in Bioengineering and Biotechnology”

In this study, the researchers observed that a recombinant human collagen complex with nicotinamide promoted hair growth in rat models, increased hair follicle stem cell survival, and enhanced key protein expression, suggesting potential benefits for hair health and loss prevention.

research Table 1_Recombinant humanized collagen combined with nicotinamide increases the expression level of rat basement membrane proteins and promotes hair growth.docx

June 2025 in “OPAL (Open@LaTrobe) (La Trobe University)”

This study investigated the effects of a recombinant human collagen complex on hair growth, finding it enhanced survival and function of hair follicle stem cells and promoted hair growth in rat models, suggesting its potential for hair loss prevention and hair health maintenance.

research Silk fibroin hydrogel with recombinant silk fibroin/NT3 protein enhances wound healing by promoting Type III collagen synthesis and hair follicle regeneration in skin injury

June 2025 in “Materials Today Bio”

In this study, a silk fibroin hydrogel containing recombinant NT3 was found to promote scar-less wound healing in a mouse skin injury model by enhancing type III collagen expression and inducing hair follicle formation.

Screening and Expression Validation of Key Proteins for Secondary Hair Follicle Growth in Cashmere Goats Based on iTRAQ Quantitative Proteomics Technology

research Screening and expression validation of key proteins for secondary hair follicle growth in cashmere goats based on iTRAQ quantitative proteomics technology

October 2024 in “Frontiers in Veterinary Science”

This study identified key proteins, FKBP10 and FBN2, that promote the growth cycle of secondary hair follicles in cashmere goats, with higher expression in the anagen phase, offering insights into mechanisms potentially enhancing cashmere yield and quality.

research The relevance of collagen XVII expression in epidermal differentiation and proliferation

September 2016 in “Journal of dermatological science”

This study found that COL17 plays a key role in regulating epidermal keratinocyte differentiation and proliferation, influencing the expression of differentiation markers and cellular growth in specific conditions.

research Expression of the Orphan Protein Plet-1 during Trichilemmal Differentiation of Anagen Hair Follicles

30 citations , February 2010 in “The journal of investigative dermatology/Journal of investigative dermatology”

This study found that the orphan protein Plet-1 is expressed in specific keratinocytes of mouse hair follicles and may regulate keratinocyte interactions with inert tissues by affecting migration and adhesion.

Bacterial Cellulose/Soybean Protein Isolate Composites with Promoted Inflammation Inhibition, Angiogenesis, and Hair Follicle Regeneration for Wound Healing

research Bacterial cellulose/soybean protein isolate composites with promoted inflammation inhibition, angiogenesis and hair follicle regeneration for wound healing

4 citations , April 2022 in “International Journal of Biological Macromolecules”

In this study, researchers reported that wound dressings made from bacterial cellulose composites modified with soybean protein (BC/7S and BC/11S) improved wound healing and reduced scarring in rat models, with BC/11S showing superior outcomes.

research Helminth protein enhances wound healing by inhibiting fibrosis and promoting tissue regeneration

August 2024 in “Life Science Alliance”

This study found that topical application of TGF-β mimic promoted enhanced wound healing and tissue regeneration in mice, suggesting its potential as a therapeutic option for improving wound healing.

research Potential mechanisms of exercise in maintaining skin homeostasis disrupted by protein deficiency (Review)

March 2024 in “World Academy of Sciences Journal”

This narrative review explores how exercise might help maintain skin homeostasis disrupted by protein deficiency, potentially by promoting processes like increased collagen synthesis and stimulating anti-inflammatory effects, though the exact mechanisms are not entirely understood.

research AP collagen peptides improve hair growth and quality by promoting human hair cell proliferation and keratin synthesis

January 2024 in “Archives of Biological Sciences (Beograd)”

This study found that AP collagen peptides can promote hair growth by supporting the health of hair follicle cells, as they stimulate cell proliferation, counteract apoptosis, and enhance antioxidant enzyme expression, suggesting potential as a treatment for hair loss.

research Expression of extracellular matrix in hair follicle mesenchyme in alopecia areata

11 citations , December 1990 in “British Journal of Dermatology”

This study observed abnormal extracellular matrix patterns in hair follicles from alopecia areata patients, particularly in the dermal papilla of large anagen follicles and in catagen follicles from lesional sites.

research Uncovering the nanoscale structure and biophysics of cutaneous fibrosis-A short review

April 2024 in “Authorea (Authorea)”

This review summarizes techniques like Raman spectroscopy, nanoindentation, and small-angle X-ray scattering to explore the biophysical interactions in collagen fibers, aiming to enhance understanding of fibroblast behavior and mechanisms involved in organ fibrosis and healing processes.

research Skin metabolism in obesity: A narrative review

September 2024 in “Wound Repair and Regeneration”

This study explored the molecular factors behind delayed wound healing in obesity, highlighting that systemic changes like inflammation and collagen deposition alterations contribute to sustained skin inflammation and reduced mechanical resistance.

research Bio-Pulsed Stimulation Effectively Improves the Production of Avian Mesenchymal Stem Cell-Derived Extracellular Vesicles That Enhance the Bioactivity of Skin Fibroblasts and Hair Follicle Cells

3 citations , November 2022 in “International journal of molecular sciences”

This study reported that bio-pulsed avian-derived mesenchymal stem cell extracellular vesicles significantly improved cell proliferation, wound healing, and gene expression in human skin fibroblasts and hair follicle cells.

research Differentiation of Mouse Induced Pluripotent Stem Cells into a Multipotent Keratinocyte Lineage

101 citations , December 2010 in “The journal of investigative dermatology/Journal of investigative dermatology”

This study reports the successful differentiation of mouse induced pluripotent stem cells into keratinocytes that can regenerate skin and its structures in an in vivo environment.

research Transcriptomic Analysis Provides Molecular Insights into Skin Development in Dezhou Donkey Foals

January 2026 in “Veterinary Sciences”

In this study, researchers found that significant transcriptomic changes occur in the skin of Dezhou donkey foals as they age from newborns to one year old, involving gene expression shifts that may enhance skin barrier function and hair follicle development, while reducing collagen synthesis.

research Regenerative medicine of the skin: Quantitative and qualitative analyses

January 2019 in “Data Archiving and Networked Services (DANS)”

This review discusses various approaches to skin tissue engineering and the evaluation of skin substitutes, highlighting the need for more objective assessments and improved understanding of skin regeneration.

research Co-opting Developmental Signaling Pathways to Promote Wound Healing

1 citations , January 2018 in “Recent clinical techniques, results, and research in wounds”

This review discusses the similarities between wound healing and embryonic development, focusing on signaling pathways and their potential for developing new wound healing strategies, and reports no new clinical results.

research Dermal niche signaling and epidermal stem cells

January 2019 in “Advances in stem cells and their niches”

This review outlines the various fibroblast subsets in the skin dermis, their origins, and their influence on epidermal stem cell behavior, highlighting the role of the local dermal niche in stem cell plasticity.

research 644 Response of distinct human dermal fibroblast lineages to visible radiation: Potential for differential light-based therapy

September 2017 in “The journal of investigative dermatology/Journal of investigative dermatology”

This study found that while 450nm blue light can inhibit collagen and induce oxidative stress in dermal fibroblasts, 850nm near-infrared light may enhance metabolic activity without causing oxidative damage, suggesting potential for tailored light therapies in skin treatments.

research A procedure for the culture of hair follicles as functionally intact organoids

5 citations , October 1988 in “Clinics in Dermatology”

A method was developed to grow hair follicles in a lab for research on hair growth and health.

Ectopic Expression of a Truncated Isoform of Hair Keratin 81 in Breast Cancer Alters Biophysical Characteristics to Promote Metastatic Propensity

research Ectopic Expression of a Truncated Isoform of Hair Keratin 81 in Breast Cancer Alters Biophysical Characteristics to Promote Metastatic Propensity

November 2023 in “Advanced Science”

A specific hair protein variant increases the spread of breast cancer and is linked to worse survival rates.

research Smooth muscle cell expression of a constitutive active form of human Profilin1 accelerates cutaneous wound repair

April 2011 in “The FASEB Journal”

This study found that profilin1 protein significantly accelerated wound healing in transgenic mice by reducing wound size and enhancing vascularization and cell migration compared to nontransgenic and 88R/L mice.

research Rice bran mineral extract increases the expression of anagen-related molecules in human dermal papilla through wnt/catenin pathway

9 citations , January 2017 in “Food & Nutrition Research”

In this study, rice bran mineral extract increased expression of anagen-related proteins and decreased inflammatory markers in human dermal papilla cells, suggesting potential for hair growth enhancement and prevention of hair loss.

research Natural Protein-Based Multifunctional Hydrogel Dressing Formed by Rapid Photocuring and Zinc Ion Coordination to Accelerate Wound Healing

7 citations , January 2025 in “ACS Applied Materials & Interfaces”

This study developed a zinc-infused egg white and GelMA hydrogel that enhanced cellular processes crucial for wound healing, including fibroblast proliferation and collagen expression, and demonstrated promising biocompatibility and bioactivity in vivo, suggesting potential effectiveness in repairing damaged tissues.

research Expression of laminin, type IV collagen and fibronectin molecules is related to embryonal skin and epidermal appendage morphogenesis.

10 citations , January 2001 in “PubMed”

In this study, researchers found that the expression of laminin, collagen type IV, and fibronectin in fetal human skin begins in hair follicle germs and extends to epidermal cells by 21 weeks gestational age.