Abstract
Researchers at the University of Central Florida are
developing a topical treatment to promote hair growth. The active compound is a
heterocyclic pyrimidine known as NBI-18. The researchers previously found that
NBI-18 stimulated the proliferation of neural stem cells. They hypothesized
that NBI-18 could restore hair growth by increasing cell proliferation of
endogenous stem cells within the hair follicle. They found that topical
application of NBI-18 induced visible hair regrowth on treated areas in shaved
mice. Toxicity studies suggested no adverse effects on the mice.
Technical
Details
This technology is a treatment for promoting hair growth by
topical application of the compound NBI-18. To test for hair regrowth, the
researchers shaved mice at four specific lateral/dorsal regions in a circular
pattern. NBI-18 was suspended in 50% ethanol (ETOH) at concentrations of 0.75,
1.5, and 3.0 mg/ml and applied to the shaved areas for five consecutive days.
On days four and five, Bromodeoxyuridine (BrdU) (100 mg/kg) was intraperitoneal
injected (i.p.) to detect cell proliferation. NBI-18 treatment resulted in
predominant hair regrowth on the treated areas with a similar growth to the
original length within seven days. Immunohistochemistry showed an increase in
BrdU positive cells in all NBI-18 treated regions compared to ETOH controls.
To test for acute toxicity, NBI-18 was injected for seven
days at 0, 100, 300, and 1000 mg/kg/day (i.p.). Behavioral testing was
performed with rotarod and open field tests to examine the balance and
coordination of the mice before, during, and after NBI-18 injection.
Additionally, postural reflex and forelimb placing tests were performed to
evaluate neurological functions. The postmortem brains were also processed for
immunohistochemistry. The animals demonstrated no immediate behavioral or
neurological changes and no symptoms of toxicity from NBI-18 throughout the
studies.
Also, a third-party laboratory performed an Ames test, and
the results suggested no mutagenesis or toxicity.
Partnering Opportunity
The research team is seeking partners for licensing and/or
research collaboration.
Stage of Development
The compounds have been tested in mice.
Benefit
NBI-18 is stable and easily manufacturedTreatment may not require continual use due to potentially increasing endogenous stem cells in the hair folliclesMarket Application
Hair loss treatment
Brochure