Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

A promising target for kidney fibrosis

21.04.2017

When the kidneys - vital organs for filtering the body's entire blood supply - become injured, it can set in motion an unfortunate chain of events that leads to a decline in health. Sometimes, in response to chronic injury, the body begins an aberrant repair process known as fibrosis, in which normal fibroblast cells transform into myofibroblasts, proliferate out of control, migrate and form scar tissue. Once scar tissue begins to form, functional cells begin to die, and the scar tissue multiplies. Investigators have been looking for a way to break this cycle, and new findings indicate that a gene known as SMOC2 may point the way to a new intervention that could prevent this cascade of events.

Previous studies by investigators at Brigham and Women's Hospital had identified SMOC2 as a protein that was highly upregulated in the kidneys of mice with fibrosis. In a new study published in JCI Insights, investigators report that increasing SMOC2 in the kidney helped initiate and continue the progression of kidney fibrosis, while tamping down SMOC2 prevented it.


This is SMOC2 staining (red) in a sample from a patient with kidney fibrosis.

Credit: Vishal Vaidya, Brigham and Women's Hospital

To test this, researchers overexpressed SMOC2 in a mouse model of kidney fibrosis and performed RNA sequencing to investigate the mechanisms responsible for fibrotic development. They found that SMOC2 activated a fibroblast-to-myofibroblast transition (FMT).

The team then used two approaches to "silence" SMOC2 - a genetic approach, by using SMOC2 knockout mice, and a pharmacologic approach, by administering SMOC2 siRNA. Using these approaches, researchers were successful in tamping down the protein's production, which protected against fibrosis development.

Corresponding author Vishal Vaidya, PhD, of BWH's Renal Division, notes that one of the exciting things about SMOC2 is that it can be detected in a patient's urine. Now that a functional connection between the protein and kidney fibrosis is becoming clearer, SMOC2 is looking like an increasingly useful biomarker for detecting fibrosis. In addition, SMOC2 may be a promising therapeutic target for an unmet medical need.

"We want to be able to intervene before the tissue becomes severely fibrotic to the point of no return. Our investigation indicates that SMOC2 could be a key to protecting against kidney fibrosis initiation and progression," said Vaidya.

###

This work was made possible through funding by the Partners Innovation Discovery Grant, Outstanding New Environmental Sciences, Innovation in Regulatory Science Award from Burroughs Wellcome Fund, the Harvard Catalyst, the National Institutes of the Health, the National Institute of Environmental Health Sciences, the Harvard Medical School Laboratory of Excellence in Systems Pharmacology and the Giovanni Armenise-Harvard Foundation.

Haley Bridger | EurekAlert!

More articles from Health and Medicine:

nachricht Correct connections are crucial
26.06.2017 | Charité - Universitätsmedizin Berlin

nachricht One gene closer to regenerative therapy for muscular disorders
01.06.2017 | Cincinnati Children's Hospital Medical Center

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Can we see monkeys from space? Emerging technologies to map biodiversity

An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.

Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine

Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

New 3-D model predicts best planting practices for farmers

26.06.2017 | Agricultural and Forestry Science

New research reveals impact of seismic surveys on zooplankton

26.06.2017 | Life Sciences

Correct connections are crucial

26.06.2017 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>