- science news Lectin-Modified Magnetic Nano-PLGA for Photodynamic Therapy In Vivo
The extreme aggressiveness and lethality of many cancer types appeal to the problem of the development of new-generation treatment strategies based on smart materials. The targeted delivery of nanoparticles to specific cancer cell receptors is believed to be such a strategy; however, there are no targeted nano-drugs that have successfully completed clinical trials to date. To meet the challenge, the team of the Laboratory of Molecular Immunology of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, the Laboratory for Biochemical Research of Carcinogenesis of the Moscow Institute of Physics and Technology, and the Department of Nanobiomedicine of the Sirius University, have developed an alternative method of oncotherapy.
- science news RALF peptides modulate immune response in the moss Physcomitrium patens
Plants utilize small secreted peptides as important mediators of many processes, from growth and development to response to stress conditions. One of such regulators is the conservative 5 kDa cysteine-rich RALF (Rapid Alkalinization Factor) peptide family, which is widely present in terrestrial plants. RAPID ALKALINIZATION FACTOR (RALFs) are peptides that regulate multiple physiological processes in plants. This peptide family has considerably expanded during land plant evolution, but the role of ancient RALFs in modulating stress responses is unknown
- science news Antibody fragment-drug conjugates selectively eliminate GD2-expressing tumor cells
Employing antibody fragments instead of full-length antibodies in antibody-drug conjugates can facilitate accumulation of the therapeutics in the tumor and reduce their side effects. Scientists from the Laboratory of molecular immunology together with colleagues from the Laboratory of cell interactions, the Laboratory of molecular diagnostics at IBCh RAS, and other Russian Institutes have for the first time developed GD2-specific antibody fragment-drug conjugates. Minibody and scFv fragment conjugates with the tubulin-inhibiting drugs MMAE and MMAF manifested strong cytotoxic and cytostatic effects in GD2-positive neuroblastoma and melanoma cell lines.
- science news 5-(Perylen-3-ylethynyl)uracil as an antiviral scaffold: Potent suppression of enveloped virus reproduction by 3-methyl derivatives in vitro
A group of scientists from the Laboratory of Molecular Design and Synthesis, the Protein Growth and Differentiation Factor Expression Group of the Institute of Bioorganic Chemistry, Russian Academy of Sciences, the Institute of Poliomyelitis and other institutes synthesized a series of compounds based on 5-(perylene-3-ylethynyl)uracil and studied their antiviral properties and mechanism of action. Previous studies of this class of compounds have suggested controversial types of mechanisms of action. Nonetheless providing comparable high activity. The present study showed that, upon irradiation with light, amphiphilic compounds accumulated in cell and viral membranes inhibit the entry of enveloped viruses into the cell.
- science news Prophage-derived regions in Curtobacterium genomes: good things, small packages
Curtobacterium is a genus of Gram-positive bacteria within the order Actinomycetales. Some Curtobacterium species are harmful pathogens of agricultural crops such as soybean, dry beans, peas, sugar beet and beetroot, which occur throughout the world. About 200 publicly available genomes of Curtobacterium species, including environmental metagenomic sequences, were inspected for the presence of sequences of possible prophage origin using bioinformatic methods.
- science news Use of an Integrated Approach Involving AlphaFold Predictions for the Evolutionary Taxonomy of Duplodnaviria Viruses
One of the challenging tasks of Duplodnaviria taxonomy is the classification of high-ranked taxa, including families and orders. In this study, the team of scientists from the Laboratory of molecular bioengineering IBCh RAS in collaboration with the colleagues from the Limnological Institute analized the evolutionary relationships of conserved viral proteins, representing different viruses, including all classified Duplodnaviria families, using AlphaFold modelling.
- science news Chemogenetic emulation of intraneuronal oxidative stress affects synaptic plasticity
The members of the redox biology group and the Laboratory of molecular technologies from the Department of Metabolism and Redox Biology, IBCH RAS, in the collaboration with colleagues from Federal Center of Brain Research and Neurotechnologies, Federal Medical Biological Agency, and Pirogov Russian National Research Medical University, using a well-established model of long-term potentiation, revealed that neuronal oxidative stress affects synaptic plasticity.
- science news Study of aging of contrast nanoparticles for MRI
December 22, 2022
A group of scientists from the Laboratory of Molecular Immunology of the IBCh RAS, GPI RAS and a several other scientific Institutes investigated biotransformation of magnetic nanoparticles in the body and the effect of this process both on the metabolism of the iron and on reducing the contrast properties of nanoparticles during imaging. For a long time, it remained unclear what happens in the long term with nanoparticle contrasts for MRI after their distribution in tissues. In addition, magnetic particle biodegradation is accompanied by abundant release of iron ions, which can cause toxic effects. A recent study published in the high-ranking Journal of Nanobiotechnology clarified these issues.
- science news New Type of Interaction of Snake Three-Finger α-Neurotoxins with Nicotinic Acetylcholine Receptors
December 14, 2022
Nicotinic acetylcholine receptor of α7 type (α7-nAChR) presented in the nervous and immune systems and epithelium is a promising therapeutic target for cognitive disfunctions and cancer treatment. Weak toxin from venom of cobra Naja kaouthia (WTX) is a non-conventional three-finger α-neurotoxin from Naja kaouthia venom, targeting α7-nAChR with weak affinity. There were no data on interaction mode of non-conventional neurotoxins with α7-nAChR.
- science news Identification of HLA-B*27-bound peptides recognized by TCRs associated with ankylosing spondylitis
December 13, 2022
Ankylosing spondylitis is an autoimmune rheumatological disease, where aberrant immune response against self-antigens is considered as a main trigger of the pathology. Up to date identification of antigen epitopes recognized by specific T cell receptors (TCRs), especially self-epitopes, remains tricky challenge and there is the very limited list of TCRs with characterized antigen specificity.
- science news "Molecular Brain" seminar, Epilepsy and channelopathies: from molecular mechanisms to the clinic and back
September 22, 2022 (This event is over)
The seminar will take place on September 22 at 16:00 in the Minor hall. Three presentations will focus on the current understanding of epilepsy and channelopathies and will consider various aspects: molecular and physiological mechanisms, as well as approaches to therapy. Everyone is cordially invited!
- science news Seminar “Molecular brain”: Allan Kalueff
May 12, 2022 (This event is over)Комментарии: 1
Seminar “Molecular brain” resumes its work after the long delay caused by pandemic of new coronavirus infection. However, all the people who are liking to listen lectures on-line, can participate via zoom-translation (link). The seminar will be held on the 12th of May at 3 pm in the Small lecture hall (3rd floor, BON, IBCh). Everyone is welcome!
- science news Gene therapy 2.0: AAV beyond monogenic gene correction
February 4–5, 2022 (This event is over)
Founding and managing partner of 4BIO Capital - Dmitry Kuzmin - will make a presentation in conference room 04 Februry 2022 at 15:00
- science news Lipids 2021 Conference
October 11–13, 2021 (This event is over)
Lipids 2021 Conference, October 11-13, 2021, IBCH RAS, Moscow
- science news "Molecular Brain" seminar dedicated to Eugene Grishin’s 75th anniversary
April 27, 2021 (This event is over)
The open seminar of the Department of Molecular Neurobiology will take place on April 27 at 11:00 in the Great Assembly Hall. The program includes presentations by colleagues, students, friends and associates of Eugene Grishin. We cordially invite everyone interested in modern work in the field of toxins, ion channels and neurobiology! Live broadcast in Zoom.
- conferences International School "Molecular mechanisms of neurodegenerative diseases"
November 26, 2020 (This event is over)
Moscow Institute of Physics and Technology (MIPT) invites you to take part in the International school for young scientists "Molecular mechanisms of neurodegenerative diseases", which will be held on November 26, 2020 online.
- science news Lecture by Director-General of the ICGEB Lawrence Banks «Human Papillomaviruses: From Infectious Entry to Malignancy»
January 27, 2020 (This event is over)
ICGEB Director-General Group Leader Lawrence Banks will deliver a lecture entitled «Human Papillomaviruses: From Infectious Entry to Malignancy». Date and time: Mon 27 January 2020 14:00. Location: Small conference hall at 3rd floor BON IBCh.
- science news LIGHTS ON: Molecular Imaging of disease dynamics in vivo
September 27 October 11, 2019 (This event is over)
Abhijit De PhD Scientific Officer ‘F’ and Principal Investigator Head, Molecular Functional Imaging Lab Advanced Centre of Training Research and Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai, India.
- science news Seminar "Molecular Brain": Anton Maximov
October 8, 2019 (This event is over)
The seminar will be held on the 8th of October at 3 pm in the Small lecture hall (3rd floor, BON, IBCh). Everyone is welcome!
- conferences II Joint Life Sciences Forum: VI Russian Congress on Biochemistry and IX Russian Symposium «Proteins and Peptides»
October 1–6, 2019 (This event is over)
Dear Colleagues! We are pleasure to invite you to participate the VI Russian Congress on Biochemistry, which will be held in Sochi, Russia (Dagomys Hotel) on October 1-6, 2019.