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We have previously discussed Dr. Angela Christiano‘s work on hair loss genetics with her team at Columbia University in New York. A review of the 16th annual meeting of the European Hair Research Society; held recently in Barcelona, Spain; brings to our attention new research being conducted by a very astute scientist, Dr. Claire Higgins, who works at Dr. Christiano’s laboratory.

With tissue supplied by Bernstein Medical, Dr. Higgins is studying the inductive properties of the dermal papilla (DP), a group of cells that forms the structure directly below each hair follicle. As outlined in our Hair Cloning Methods page, the dermal papilla is of great interest to hair restoration physicians. Ideally, research of this kind will lead to a breakthrough in hair cloning or hair multiplication which will allow physicians to effectively “cure” hair loss by developing a limitless supply of donor hair that can be used in hair restoration procedures.

A description of Dr. Higgins’ work is provided by the Hair Transplant Forum International:

“After isolating [dermal papilla] from human hair follicles, they grow the human DP cells in spheroid cultures in order to retain their inductive potential. Then they place the dermal papilla spheres between the epidermis and dermis of neonatal foreskin and graft it onto the back of mice. Human [hair follicle] neogenesis can be observed after 6 weeks.”

In essence, the scientists were able to capitalize on the potential of dermal papilla cells to induce the growth of a hair follicle by enclosing the DP cells in a small sphere. When implanted, the DP cells maintained their properties of inducing the development of follicles, and, indeed, follicles did grow.

It is another example of how far our understanding of the biology of hair has come in the last 10 years. And it is another example of scientists closing in on the elusive “hair loss cure.”

Read up on the latest Hair Cloning Research

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RepliCel Life Sciences; a company out of Vancouver, Canada; is studying the use of hair cloning techniques to treat male pattern baldness and hair loss in women.

The study is in progress, but analysis of the 6-month interim results of the first phases has been published. The preliminary results at 6 months show that almost two-thirds of subjects (10 out of 16, or 63%) received a greater than 5% increase in hair density at the injection site. Of that group of 10 subjects, seven of them saw hair density improve by more than 10%. In one subject vellus hair density increased 24.9%, terminal hair density increased 14.5%, overall hair density increased by 19.2%, and cumulative thickness per area increased by 15.4%. There were no significant adverse safety events reported in the first 6 months of the trial.

Phase I/IIa of the RepliCel study involved injecting male and female subjects with their own (autologous) dermal sheath cup cells (DSCC), which were replicated or cloned using RepliCel’s laboratory technology. A preliminary analysis of the safety of the injections, as well as a preliminary analysis of the efficacy of the treatment in growing hair, was announced in May 2012 and presented to the European Hair Research Society in June 2012. Subjects in this part of the study will continue to be monitored for any adverse physical reactions and to assess hair growth at 12 months and 24 months after treatment.

Phase IIb of the study is designed to help the RepliCel researchers formulate the optimal treatment for hair growth. Some of the treatment regimens that will be tested include the use of different concentrations of cells and different treatment schedules, plus the effects of single injections versus repeat injections. The final protocols for Phase IIb are currently being worked out, with the clinical trial expected to begin in late 2012.

Reference:

Lortkipanidze, N. Safety and Efficacy Study of Human Autologous Hair Follicle Cells to Treat Androgenetic Alopecia. In Clinicaltrials.gov. Retrieved July 26, 2012, from http://clinicaltrials.gov/ct2/show/NCT01286649.

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