Scientists report that an unlikely molecule has emerged as an attractive target for development of therapeutics aimed at a diverse spectrum of tumors, including some malignancies that are resistant to conventional therapies. Two studies published online in Cancer Cell demonstrate that the insulin-like growth factor 1 receptor (IGF-1R) is required for the survival of tumor cells and provide direct evidence that inhibition of IGF-R1 using selective small molecules represents a novel potential anticancer treatment.
Extensive studies have suggested that IGF-1R plays a role in the development of human cancers. IGF-1R is present in a broad range of tumor types including multiple myeloma, lymphoma, leukemia, and breast, lung, prostate, and colon cancers. However, IGF-1R has not been viewed as a likely target for cancer therapeutics because many normal cells also contain the protein. Research scientists from Dana-Farber Cancer Institute in Boston and Novartis Institutes for Biomedical Research Basel demonstrate that IGF-1R inhibition using a variety of methods had potent antitumor effects against many types of cancer cells grown in the laboratory, including cells that are resistant to conventional cancer therapeutics.
Molecular analyses demonstrated that IGF-1R inhibition impacts multiple intracellular signals related to cell proliferation or tumor development and provides possible mechanisms to explain how IGF-1R inhibition can make tumor cells more sensitive to conventional chemotherapy or other anticancer agents. Perhaps most significantly, IGF-1R suppresses tumor growth, prolongs survival, and enhances the antitumor effect of chemotherapy in clinically relevant mouse models of multiple myeloma and other hematological malignancies. The researchers also identify two small molecules that are selective inhibitors of IGF-1R and are active anticancer agents against tumors that contain IGF-1R. These small molecules represent highly attractive potential therapeutics.
Heidi Hardman | EurekAlert!
Correct antibiotic dosing could preserve lung microbial diversity in cystic fibrosis
22.02.2019 | Children's National Health System
Researchers find trigger that turns strep infections into flesh-eating disease
19.02.2019 | Houston Methodist
An international research team including astronomers from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has combined radio telescopes from five continents to prove the existence of a narrow stream of material, a so-called jet, emerging from the only gravitational wave event involving two neutron stars observed so far. With its high sensitivity and excellent performance, the 100-m radio telescope in Effelsberg played an important role in the observations.
In August 2017, two neutron stars were observed colliding, producing gravitational waves that were detected by the American LIGO and European Virgo detectors....
Up to now, OLEDs have been used exclusively as a novel lighting technology for use in luminaires and lamps. However, flexible organic technology can offer much more: as an active lighting surface, it can be combined with a wide variety of materials, not just to modify but to revolutionize the functionality and design of countless existing products. To exemplify this, the Fraunhofer FEP together with the company EMDE development of light GmbH will be presenting hybrid flexible OLEDs integrated into textile designs within the EU-funded project PI-SCALE for the first time at LOPEC (March 19-21, 2019 in Munich, Germany) as examples of some of the many possible applications.
The Fraunhofer FEP, a provider of research and development services in the field of organic electronics, has long been involved in the development of...
For the first time, an international team of scientists based in Regensburg, Germany, has recorded the orbitals of single molecules in different charge states in a novel type of microscopy. The research findings are published under the title “Mapping orbital changes upon electron transfer with tunneling microscopy on insulators” in the prestigious journal “Nature”.
The building blocks of matter surrounding us are atoms and molecules. The properties of that matter, however, are often not set by these building blocks...
Scientists at the University of Konstanz identify fierce competition between the human immune system and bacterial pathogens
Cell biologists from the University of Konstanz shed light on a recent evolutionary process in the human immune system and publish their findings in the...
Laser physicists have taken snapshots of carbon molecules C₆₀ showing how they transform in intense infrared light
When carbon molecules C₆₀ are exposed to an intense infrared light, they change their ball-like structure to a more elongated version. This has now been...
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