TLDR Angiogenin helps hair grow by stimulating cell growth and blood vessel formation.
The study demonstrated that angiogenin, an angiogenic factor expressed in human dermal papilla cells (DPCs), significantly stimulated hair growth both in vivo and in vitro. Techniques such as RT-PCR, western blotting, immunofluorescence, and ELISA confirmed angiogenin's presence in DPCs, with peak expression during the late anagen phase. Local injections of angiogenin in mice promoted skin angiogenesis and induced anagen VI, while in vitro studies showed enhanced hair follicle elongation and DPC proliferation. These findings suggested that angiogenin could be a potential therapeutic target for promoting hair growth by stimulating cell proliferation and inducing local vascularization.
91 citations,
May 2003 in “American Journal of Pathology” Prolactin affects hair growth cycles and can cause early hair follicle regression.
520 citations,
February 2001 in “Journal of Clinical Investigation” VEGF helps hair grow and determines follicle size by increasing blood vessel growth.
109 citations,
December 1998 in “The Journal of Dermatology” Manipulating the catagen and telogen phases of hair growth could lead to treatments for hair disorders.
9 citations,
July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Sex hormones and antiandrogens can either stimulate or inhibit human hair follicle cell growth depending on the dose.
January 2022 in “Journal of St. Marianna University” Substances from human hair cells can affect hair loss-related genes, potentially leading to new treatments for baldness.
15 citations,
April 2014 in “Experimental Dermatology” Scientists developed a system to study human hair growth using skin cells, which could help understand hair development and improve skin substitutes for medical use.
321 citations,
December 2009 in “Journal of Dermatological Science” Dermal cells are key in controlling hair growth and could potentially be used in hair loss treatments, but more research is needed to improve hair regeneration methods.
January 2003 in “Chinese Journal of Reparative and Reconstructive Surgery” Dermal papilla cells can help form hair follicles and produce hair.
66 citations,
August 2001 in “Experimental Dermatology” Human hair follicle cells can grow hair when put into mouse skin if they stay in contact with mouse cells.
57 citations,
November 1998 in “Wound Repair and Regeneration” Hair papilla cells can create and regenerate hair bulbs under the right conditions.