About My Health Careers Internship MedBlogs Contact us
Medindia LOGIN REGISTER
Advertisement

New Compound may Help Kill Pancreatic Cancer Stem Cells

by Bidita Debnath on October 29, 2017 at 11:43 PM
Font : A-A+

New Compound may Help Kill Pancreatic Cancer Stem Cells

Pancreatic cancer has been one of the deadliest of all cancers, with almost uniform lethality despite aggressive treatment. Intriguing antitumor activity is found in a very promising class of natural compounds: cyclic depsipeptides, which have a challenging structure that makes their investigation difficult.

Now, Chinese scientists have established the synthesis of a member compound, which is especially promising in killing pancreatic cancer stem cells. They describe its total synthesis and first test results in the journal Angewandte Chemie; the results point to an unprecedented activity towards one of the deadliest cancers.

Advertisement


The almost uniform and threatening lethality of pancreatic cancer originates in its stem cells. These pancreatic cancer stem cells (PCSCs) are resistant against even the most aggressive treatments, which makes the search for new and powerful drugs indispensable. A very promising compound class are naturally occurring cyclic depsipeptides, peptide rings that contain one or more ester bonds in addition to peptidic amide bonds.

Cyclic depsipeptides are found in a variety of organisms such as fungi, bacteria, and marine organisms and were shown to exert a diverse spectrum of biological activities including and anticancer performances. But how to do testing without material? The natural products are so rare they cannot be isolated in enough quantity, and their synthesis is hampered by a very complicated chemical structure. Furthermore, it is even not completely clear which parts of the molecule are the actual therapeutically active sites, least their mechanism of action.
Advertisement

A team of scientists around Liang Wang and Yue Chen from Tianjin Key Laboratory of Molecular Drug Research at Nankai University, China, has apparently made an end to that. Applying themselves to the task of total synthesis of a depsipeptide with the very technical name BE-43547A(2), which has a structure featuring different kinds of joints of the subparts, three chiral centers, and two double bonds, the scientists finally achieved its synthesis over 15 linear steps. They even produced the relatively large quantity of more than one-third of a gram of pure material--enough to perform first laboratory tests on its anticancer performance in comparison with other drugs and to investigate its structure-activity relationship.

The scientists found that the compound's anticancer activity was far better than that of several established drugs including two components that are already in clinical trial against PCSCs. BE-43547A(2) reduced the percentage of pancreatic cancer stem cells 21-fold relative to the control and abolished the tumor-initiating capability of the cells. "All of the biological assays indicate that BE-43547A(2) can selectively ablate pancreatic cancer stem cells," the scientists reported.

Furthermore, they established which sites in the molecule are the pharmacologically relevant ones since molecules synthesized with slight differences in these sites were not active. These important results directly point to the next task, which is to determine the still unknown mechanism of action. The successful synthesis of BE-43547A(2) may be a decisive step in the ongoing fight against pancreatic cancer.

Source: Eurekalert
Advertisement

Advertisement
News A-Z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Advertisement
News Category
What's New on Medindia
International Day of Persons with Disabilities 2021 - Fighting for Rights in the Post-COVID Era
Effect of Blood Group Type on COVID-19 Risk and Severity
Woman with Rare Spinal Cord Defect from Birth Sues Doctor
View all

Medindia Newsletters Subscribe to our Free Newsletters!
Terms & Conditions and Privacy Policy.

More News on:
Pancreatic Cancer Stem Cells - Cord Blood Stem Cells - Fundamentals Cancer and Homeopathy Parkinsons Disease Surgical Treatment Genetics and Stem Cells Cancer Facts Cancer Tattoos A Body Art Pancreatitis 

Recommended Reading
Novartis Announces FDA Approval for Rare Pancreatic Cancer Drug
Swiss pharmaceutical giant Novartis has announced that its cancer drug Afinitor has received ......
New Research may Help Scientists Combat Pancreatic Cancer
Understanding tumor microbiology will help researchers improve the existing chemotherapies ......
Potential Therapies For Pancreatic Cancer Found
A protein-cleaving enzyme called FAP, for fibroblast activation protein is responsible for ......
Newly Developed Genetic Test Can Detect and Treat Pancreatic Cancer
PancreaSeq® test, a highly sensitive genetic test helps in guiding physicians to test pancreatic ......
Pancreatic Cancer
Pancreatic cancer often involves its exocrine part. It grows aggressively, and often detected late. ...
Pancreatitis
Pancreatitis or inflammation of the pancreas may show up as acute pancreatitis or chronic pain. Alco...
Stem Cells - Fundamentals
Encyclopedia section of medindia gives general info about Stem Cells...
Stem Cells - Cord Blood
Encyclopedia section of medindia gives general info about Cord Blood...
Tattoos A Body Art
Tattoos are a rage among college students who sport it for the ‘cool dude’ or ‘cool babe’ look...

Disclaimer - All information and content on this site are for information and educational purposes only. The information should not be used for either diagnosis or treatment or both for any health related problem or disease. Always seek the advice of a qualified physician for medical diagnosis and treatment. Full Disclaimer

© All Rights Reserved 1997 - 2021

This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use