Navigation Links
Mapping of protein inhibitors facilitates development of tailor-made anticancer agents

A team of researchers at Karolinska Institutet in Sweden has generated a map over the effects of small drug-like molecules on PARP1 and other similar proteins in the body. This map may explain the mechanism behind putative side effects of the so-called PARP inhibitors, and can play an important role in the development of novel tailor-made cancer drugs. The study is presented in the journal Nature Biotechnology, and will hopefully contribute to new cancer therapies with fewer detrimental side effects.

PARP1 is a protein with enzymatic activity that governs repair of DNA damage in our cells. In the past decade, PARP1 has been in the focus for a large number of industrial drug development projects, primarily targeting breast and ovarian cancers. More than 50 clinical studies have been initiated around the world.

In the current study, the researchers at Karolinska Institutet have tested the effects of small drug-like molecules inhibitors on PARP1 and other enzymes of the same class. The effects of 180 substances on 13 different human PARP enzymes were studied. Many of the drugs that are currently being tested in clinical studies were part of the survey.

"Our results give us a map over the effects of a number of known but also less well characterized drug-like compounds on different PARP enzymes", says Herwig Schler, who headed the study at the Department of Medical Biochemistry and Biophysics. "Studying the cross-reactivity of less well characterized compounds on different PARP enzymes is especially interesting, since it can give clues to the interpretation of clinical side effects."

The chemical interaction map was complemented with high-resolution structural information, showing at atomic detail how inhibitors bind to these PARP enzymes. Together, the results give unique insights into specificity and cross-reactivity of PARP inhibitors. This in turn will be an important hallmark toward development of selective PARP inhibitors tailor-made substances that can inhibit one PARP enzyme while leaving the others unaffected.

This project builds upon a long-standing industry collaboration that Karolinska Institutet has participated in within the Structural Genomics Consortium 2005-2010. The study published in Nature Biotechnology is the result of collaboration between the research group at KI, the University of Perugia (Italy), Actar AB, and GE Healthcare.


Contact: Katarina Sternudd
Karolinska Institutet

Related medicine news :

1. CSHL team introduces automated imaging to greatly speed whole-brain mapping efforts
2. Fast new method for mapping blood vessels may aid cancer research
3. Blood vessel mapping reveals 4 new ZIP codes
4. Gene Mapping Reveals Clues to Bedbugs Pesticide Resistance
5. Roadmap published for dynamic mapping of estrogen signaling in breast cancer
6. Mapping faculty social networks helps female faculty move ahead at NJIT
7. Mapping a brain atlas
8. ELLKAY Introduces Revolutionary Live Insurance Mapping Solution for Diagnostic Laboratories
9. A single protein helps the body keep watch over the Epstein-Barr virus
10. CD97 gene expression and function correlate with WT1 protein expression and glioma invasiveness
11. Protein structures give disease clues
Post Your Comments:
(Date:11/27/2015)... ... November 27, 2015 , ... ... software Q-Suite, announces the incorporation of Asterisk 11 LTS (Long Term Support) into ... Asterisk 11 LTS brings Q-Suite 5.10 up-to-date with a version of Asterisk that ...
(Date:11/26/2015)... ... , ... Inevitably when people think Thanksgiving, they also think Holiday sales and ... Friday and Cyber Monday massage chair sales to receive the best pricing ... to find the best massage chair deals, they can see all of the coupons ...
(Date:11/26/2015)... Ashburn, VA (PRWEB) , ... November 26, 2015 ... ... Planners, an American Express Travel Representative. As a franchise owner, Somu now offers ... range of cruise, destination wedding packages, private cruise sales, as well as, cabin ...
(Date:11/26/2015)... ... 26, 2015 , ... Jobs in hospital medical laboratories and in the imaging ... staffing agency Aureus Medical Group . These fields, as well as ... searching for healthcare jobs through the company’s website, , The leading ...
(Date:11/26/2015)... ... 26, 2015 , ... WorldCare International, Inc., the first company ... Employee Benefits Conference. The Employee Benefits Conference was hosted by the International Foundation ... 11th, 2015. The conference was held at the Hawaii Convention Center in Honolulu, ...
Breaking Medicine News(10 mins):
(Date:11/26/2015)... DUBLIN , Nov. 26, 2015 ... the addition of the "2016 Future Horizons ... Monitoring (TDM) Market: Supplier Shares, Country Segment Forecasts, ... offering. --> ... comprehensive analysis of the Japanese therapeutic drug monitoring ...
(Date:11/26/2015)... , November 26, 2015 ... of the "2016 Future Horizons and ... Abuse Testing Market: Supplier Shares, Country Segment ... to their offering. --> ... "2016 Future Horizons and Growth Strategies ...
(Date:11/26/2015)... DUBLIN , November 26, 2015 ... has announced the addition of the  ... in the European Therapeutic Drug Monitoring ... Forecasts, Competitive Intelligence, Emerging Opportunities"  report ... ) has announced the addition ...
Breaking Medicine Technology: