This enzyme can appear even when the cancer has not yet developed and lesions are precancerous. Thus this molecule would serve as a good marker in the diagnosis and prognosis of the disease. Moreover, its activity could play a relevant role in the development of lung cancer, which makes the research of great interest for potential future therapeutical applications as well.
According to researchers, both the experiments using test tubes and cell cultures revealed that the enzyme lowers the levels of the most active form of vitamin A (retinoic acid), a strong anticancerous agent. This is achieved by its strong retinal reductase activity, which favours chemical reduction transformation, thus causing retinal, the precursor of retinoic acid, to transform into its least active form, retinol.
Retinoic acid is present in several biological processes - from fetus development to cell proliferation and differentiation - by controlling the expression of certain genes. The reduction of this acid within cells, which is precisely the effect produced by the enzyme under study, is linked directly to the lack of cell differentiation and therefore favours the development of the cancer. In order to discover why the enzyme acts this way, scientists obtained and studied its three-dimensional structure and located the elements responsible for its role in the onset of cancer among smokers. The identification of these structural elements makes it possible to create a specific design for drugs that can treat this disease. In fact, researchers were able to observe how the substance tolrestat, used as an inhibitor of the enzyme AKR1B1, or aldose reductase, responsible for many secondary complications of diabetes, also worked to inhibit the activity of the enzyme AKR1B10. Since both enzymes contain similar structures, research was carried out on its possible applications in the treatment of diabetes.
Octavi López Coronado | alfa
Climate Impact Research in Hannover: Small Plants against Large Waves
17.08.2018 | Leibniz Universität Hannover
First transcription atlas of all wheat genes expands prospects for research and cultivation
17.08.2018 | Leibniz-Institut für Pflanzengenetik und Kulturpflanzenforschung
New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference
Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...
Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...
Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.
When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...
Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.
Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....
Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.
Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...
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17.08.2018 | Physics and Astronomy
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17.08.2018 | Life Sciences