Kisspeptin: A new drug to treat liver disease?
Rutgers researchers discover hormone has therapeutic effects on non-
alcoholic fatty liver disease in mouse study

Date:
April 7, 2022
Source:
Rutgers University
Summary:
A hormone that triggers puberty and controls fertility in humans
might be developed as a treatment for non-alcoholic fatty liver
disease, according to new Rutgers research.



FULL STORY ==========================================================================
A hormone that triggers puberty and controls fertility in humans might
be developed as a treatment for non-alcoholic fatty liver disease,
according to new Rutgers research.


==========================================================================
The study, appearing in the Journal of Clinical Investigation, provides powerful evidence that a modified version of the naturally occurring
hormone kisspeptin can be used to treat non-alcoholic fatty liver disease (NAFLD).

Globally, NAFLD is the most common form of chronic liver disease that
affects children and adults and is linked to the rise in obesity and
Type 2 diabetes.

NAFLD is known as a "silent" disease because it starts off with few
or no symptoms. It begins with the accumulation of fat in the liver,
resulting in a condition known as 'fatty liver'. As the disease worsens,
the liver becomes inflamed resulting in non-alcoholic steatohepatitis
(NASH). This is followed by fibrosis and cirrhosis, where the liver
becomes scarred and irreversibly damaged. A subset of NASH patients
with cirrhosis will also develop liver cancer. Currently, there are no
approved therapeutics to treat NASH.

Study lead investigator, Moshmi Bhattacharya, an associate professor
in the Department of Medicine at the Rutgers Robert Wood Johnson
Medical School, has spent over 15 years studying kisspeptin in health
and disease. Kisspeptin, encoded by the KISS1 gene, was discovered in
Hershey, Pa. and named for the iconic Hershey chocolate "kisses." In
addition to playing key roles in pubertal development and maintaining reproductive function, kisspeptin has also been linked to appetite and
sexual attraction.

Bhattacharya along with co-author Andy Babwah, an associate professor in pediatrics at Rutgers Robert Wood Johnson Medical School, initiated this
study to decipher the roles of kisspeptin in the liver, under healthy
and obese conditions. The study's first author, Stephania Guzman, is a
Ph.D. candidate in Rutgers Molecular Biosciences Graduate Program. This collaborative study also included researchers led by Waljit Dhillo at
the Imperial College London, U.K.

The researchers fed mice a high-fat, high-sugar 'Western' diet to induce obesity and NAFLD. The study showed that kisspeptin given to these mice protected them from the development of fatty liver, NASH and fibrosis.

Kisspeptin works by binding its receptor, a protein called KISS1R. The
study also showed that when KISS1R is deleted from liver cells, kisspeptin cannot function and mice on western diet develop fatty liver. These
experiments uncover a powerful relationship between kisspeptin and the reduction of liver fat and fibrosis.

The study found:
* Kisspeptin helps reduce fat deposited in the liver and reverse more
advanced disease.

* The mechanism by which kisspeptin functions in the liver is now
understood.

* Blood kisspeptin levels change in human NAFLD patients and in
a mouse
model of NAFLD.

"This work shows the kisspeptin receptor signaling pathway has a
potential therapeutic role in NAFLD," said co-author, Vinod K Rustgi,
director of hepatology and a Distinguished Professor of Medicine at the
Rutgers Robert Wood Johnson Medical School. "It does this by protecting
against the development of fat in the liver and reducing inflammation
and fibrosis. As such, it has the potential to favorably impact the
health and lives of millions of patients around the globe."

========================================================================== Story Source: Materials provided by Rutgers_University. Note: Content
may be edited for style and length.


========================================================================== Journal Reference:
1. Stephania Guzman, Magdalena Dragan, Hyokjoon Kwon, Vanessa de
Oliveira,
Shivani Rao, Vrushank Bhatt, Katarzyna M. Kalemba, Ankit Shah,
Vinod K.

Rustgi, He Wang, Paul R. Bech, Ali Abbara, Chioma Izzi-Engbeaya,
Pinelopi Manousou, Jessie Yanxiang Guo, Grace L. Guo, Sally
Radovick, Waljit S.

Dhillo, Fredric E. Wondisford, Andy V. Babwah, Moshmi Bhattacharya.

Targeting hepatic kisspeptin receptor ameliorates non-alcoholic
fatty liver disease in a mouse model. Journal of Clinical
Investigation, 2022; DOI: 10.1172/JCI145889 ==========================================================================

Link to news story: https://www.sciencedaily.com/releases/2022/04/220407161952.htm

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