Navigation Links
Breakthrough by Temple researchers could lead to new treatment for heart attack
Date:11/5/2013

heart failure, which can develop in the years following heart attack. To explore the significance of that elevation, they engineered mice to overexpress TNNI3K. They also created a second set of engineered mice, in which the protein was deleted. They then measured the animals' response to heart attack.

When overexpressed, Vagnozzi and colleagues found that TNNI3K promoted the injury of heart tissue from ischemia (blockage of blood flow) and reperfusion (restoration of blood flow) during and after a heart attack. TNNI3K overexpression in heart cells encouraged the production of superoxide, a reactive molecule from mitochondria, and activated p38 mitogen-activated protein kinase (MAPK), an enzyme that responds to stress signals in cells. The combined result of those activities was impaired mitochondrial function and heart cell death, which worsened ischemia/reperfusion injury. The opposite occurred in mice in which TNNI3K had been deletedsuperoxide production and p38 activation were reduced, and injury to the heart was limited. Reductions in heart dysfunction and fibrosis (hardening of heart tissue) were also observed.

The team next collaborated with the pharmaceutical company GlaxoSmithKline (GSK) to identify compounds that were capable of blocking TNNI3K activity. Treatment of wild-type (nonengineered) mice with the compounds following heart attack produced effects that were similar to those observed in mice with TNNI3K deletion.

The new findings open the way to a large-animal study and the development of a TNNI3K inhibitor that can be used in humans. According to Force, the team is planning to move ahead with a large-animal study, which will determine whether the drugs are effective in animals other than mice and allow for the development of pharmacological and safety profiles of the compounds. "Because TNNI3K is only expressed in the heart, drugs targeting it should be reasonably safe," Force noted.

A major aim of Temple's Ce
'/>"/>

Contact: Jeremy Walter
Jeremy.Walter@tuhs.temple.edu
215-707-7882
Temple University Health System
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Breakthrough research produces brighter, more efficiently produced lighting
2. ASU, Georgia Tech create breakthrough for solar cell efficiency
3. NTU scientists make breakthrough solar technology
4. Research breakthrough: Impaired autophagy associated with age-related macular degeneration
5. Scientific breakthrough reveals how vitamin B12 is made
6. Ionic liquid breakthrough in thermal electrical energy
7. Breakthrough: Sensors monitor cells at work
8. Breakthrough research of essential molecule reveals important targets in diabetes and obesity
9. University of Toronto breakthrough allows fast, reliable pathogen identification
10. Breakthrough in how pancreatic cancer cells ingest nutrients points to new drug target
11. NREL staff recognized for breakthrough technologies
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2015)...  BellBrook Labs, a leader in high throughput screening ... a TR-FRET (time resolved Forster resonance energy transfer) ... high throughput screening assay for glycosyltransferases and other ... sensitive detection of hundreds of human and microbial ...
(Date:1/22/2015)... 2015  Analyst Report Issued by Small Cap IR. In 2011, ... planet-wide, transactions at merchants on the leading payment cards rose ... credit, debit, and prepaid cards reached 6.54 billion.  Eight million ... card usage in 2012, and credit and debit card fraud ...
(Date:1/22/2015)... Infinisource has launched its new NXG series of time ... sets a higher standard for collecting attendance and labor data ... plug-and-play installation, touch screen interface and seamless connection to cloud-based ... collection solution for the small to mid-size employer. ...
Breaking Biology News(10 mins):BellBrook Labs Launches a High Throughput Screening Assay for Glycosyltransferases with TR-FRET Readout 2$4.80 Near Term Price Target with "Buy" given by CapRock Research for NXT-ID, Inc. (NASDAQ: NXTD) issued by Small Cap IR 2Infinisource's NXG series sets new time clock standard 2
... regulate early heart development in animals, scientists have solved ... acts in concert with a related gene. Their finding ... development may go awry, resulting in congenital heart defects ... cardiothoracic surgeon at The Children,s Hospital of Philadelphia, led ...
... on the island of Reunion in the Indian Ocean and ... Kew) has used motion sensitive night cameras to capture the ... of flowering plants. Not only is this the first time ... Orthoptera order of insects who are better known for ...
... powerful, paralyzing venom ― a complex cocktail of poisonous ... of the toxins in this cocktail damage only insects, ... harnessing them to create a safe and ecologically sound ... Department of Plant Sciences has isolated the genetic sequences ...
Cached Biology News:In early heart development, genes work in tandem 2First known instance of a cricket as an orchid pollinator captured on film by Kew scientist 2A deadly scorpion provides a safe pesticide 2
(Date:1/22/2015)... , Jan. 22, 2015   Cypher Genomics, ... Sequenom, Inc. (NASDAQ: SQNM ), the ... agreement for next generation noninvasive prenatal tests (NIPT). ... interpretation technology, called Mantis™, to advance analysis of ...
(Date:1/22/2015)... , Jan. 22, 2015  Derma Sciences, Inc. (Nasdaq: ... focused on advanced wound care, announces that AMNIOEXCEL® ... have been added to the Premier, Inc. Regenerative ... opportunity for the AMNIOEXCEL® and AMNIOMATRIX® product lines, ...
(Date:12/24/2014)... , Dec. 24, 2014 PlasmaTech Biopharmaceuticals, Inc. (NASDAQ: ... areas, announced the closing of an underwritten public offering of ... to an aggregate 3,500,000 shares of common stock, at an ... The warrants have a per share exercise price of $5.00, ...
(Date:12/24/2014)... (PRWEB) December 23, 2014 “Preparative ... Gas, HPLC, Flash), Consumables (Columns, Solvents, Buffers, Valves, ... Food & Agriculture) - Forecasts to 2019” provides ... challenges, opportunities, current market trends, and strategies impacting ...
Breaking Biology Technology:Cypher Genomics and Sequenom Announce Development Agreement 2Cypher Genomics and Sequenom Announce Development Agreement 3Cypher Genomics and Sequenom Announce Development Agreement 4Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 2Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 3Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 4Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 5PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 3Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 2Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 3Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 4
... Laboratories announces the exclusive licensing of DxS Scorpions™ technology to test ... optimization and targeted control of contaminant microbes can increase profitability. ... ... -- ETS has had the exclusive license to use this technology ...
... 28, Essilor cancelled 1,600,000 shares, in line with its ... bond conversions and,the Company,s stock option plans. , ... shares acquired under the 6.9,million share buyback program authorized ... offset the dilutive impact of converting outstanding Oceane bonds,due ...
... Singapore,s Institute of Bioengineering and Nanotechnology (IBN) have uncovered ... they could play a vital role in disease prevention ... properties of IMSs was published in the Journal ... separate study published in Angewandte Chemie International Edition ...
Cached Biology Technology:ETS Laboratories Offers New Process Optimization Tools to the Fuel Ethanol Industry 2New uses for imidazolium salts in medicine and alternative energy 2New uses for imidazolium salts in medicine and alternative energy 3
... produced by a patented microwave process which ... consistent, even cell attachment, increased cell growth ... growth uunder difficult conditions, including reduced serum ... a more ecominic alternative to expensive and ...
Automated Cell Culture Flask...
... Bio-Plex suspension array system, 100-240 V, uses ... up to 100 proteins and peptides in ... composed of up to 100 color-coded bead ... with a unique reactant (enzyme substrates, receptors, ...
Cell Culture Flask, 75 cm, treated polystyrene...
Biology Products: