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Ermakova L, Kozlov S, Nagorny S, Golovchenko N, Telicheva V, Kiosova J, Zotova M, Pshenichnaya N. The first case of human invasion by Clinostomum complanatum in the European part of Russia. IJID Reg 2024; 11:100346. [PMID: 38577555 PMCID: PMC10992713 DOI: 10.1016/j.ijregi.2024.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 03/04/2024] [Accepted: 03/05/2024] [Indexed: 04/06/2024]
Abstract
The article presents a rare case of human invasion by the trematode Clinostomum complanatum in the European part of Russia. The diagnosis was established based on a parasitological study of flukes removed from the tonsils and pharynx of a 42-year-old woman, a resident of the Tambov region of Russia.
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Affiliation(s)
- Larisa Ermakova
- Rostov Research Institute of Microbiology and Parasitology, Rostov-on-Don, Russia
| | - Sergey Kozlov
- Children's Scientific and Clinical Center for Infectious Diseases" of the Federal Medical and Biological Agency, Petersburg, Russia
- St. Petersburg State Pediatric Medical University of the Ministry of Health of the Russian Federation, St. Petersburg, Russia
- S.M. Kirov Military Medical Academy of the Ministry of Defense of the Russian Federation, St. Petersburg, Russia
| | - Sergey Nagorny
- Rostov Research Institute of Microbiology and Parasitology, Rostov-on-Don, Russia
| | - Natalia Golovchenko
- Rostov Research Institute of Microbiology and Parasitology, Rostov-on-Don, Russia
| | - Victoria Telicheva
- Rostov Research Institute of Microbiology and Parasitology, Rostov-on-Don, Russia
| | - Julia Kiosova
- Rostov Research Institute of Microbiology and Parasitology, Rostov-on-Don, Russia
| | - Marina Zotova
- Center of Hygiene and Epidemiology in the Tambov region, Tambov, Russia
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2
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Kozlov S, Spirina E. Novel Modification of Integrated Optimization Method for Sensor's Communication in Wi-Fi Public Networks. Sensors (Basel) 2024; 24:1395. [PMID: 38474931 DOI: 10.3390/s24051395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 01/17/2024] [Accepted: 02/19/2024] [Indexed: 03/14/2024]
Abstract
A novel modification of IP networks integrated optimization method for heterogeneous networks, for example, the seamless Wi-Fi network serving simultaneously mobile users and wireless sensors, has been developed in this article. The mutual influence of signal reception, frequency-territorial planning, and routing procedures in heterogeneous networks have been analyzed in the case of simultaneous data transmission by both mobile users and wireless sensors. New principles for the listed procedures interaction and the basic functions for their describing are formulated. A novel modification of the integrated optimization method and its algorithm have been developed. The developed method's effectiveness has been analyzed for the IEEE 802.11ax network segment. Its result showed that the network load was decreased by an average of 20%, the data rate over the network as a whole increased for users and sensors by an average of 25% and 40%, respectively, and the sensors' lifetime increased by an average of 20% compared to the novel modification of the Collective Dynamic Routing method.
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Affiliation(s)
- Sergey Kozlov
- Radioelectronic and Telecommunication Systems Department, Kazan National Research Technical University Named after A. N. Tupolev-KAI, Kazan 420111, Russia
| | - Elena Spirina
- Radioelectronic and Telecommunication Systems Department, Kazan National Research Technical University Named after A. N. Tupolev-KAI, Kazan 420111, Russia
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3
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Liu X, Onda M, Schlomer J, Bassel L, Kozlov S, Tai CH, Zhou Q, Liu W, Tsao HE, Hassan R, Ho M, Pastan I. Tumor resistance to anti-mesothelin CAR-T cells caused by binding to shed mesothelin is overcome by targeting a juxtamembrane epitope. Proc Natl Acad Sci U S A 2024; 121:e2317283121. [PMID: 38227666 PMCID: PMC10823246 DOI: 10.1073/pnas.2317283121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 11/27/2023] [Indexed: 01/18/2024] Open
Abstract
Despite many clinical trials, CAR-T cells are not yet approved for human solid tumor therapy. One popular target is mesothelin (MSLN) which is highly expressed on the surface of about 30% of cancers including mesothelioma and cancers of the ovary, pancreas, and lung. MSLN is shed by proteases that cleave near the C terminus, leaving a short peptide attached to the cell. Most anti-MSLN antibodies bind to shed MSLN, which can prevent their binding to target cells. To overcome this limitation, we developed an antibody (15B6) that binds next to the membrane at the protease-sensitive region, does not bind to shed MSLN, and makes CAR-T cells that have much higher anti-tumor activity than a CAR-T that binds to shed MSLN. We have now humanized the Fv (h15B6), so the CAR-T can be used to treat patients and show that h15B6 CAR-T produces complete regressions in a hard-to-treat pancreatic cancer patient derived xenograft model, whereas CAR-T targeting a shed epitope (SS1) have no anti-tumor activity. In these pancreatic cancers, the h15B6 CAR-T replicates and replaces the cancer cells, whereas there are no CAR-T cells in the tumors receiving SS1 CAR-T. To determine the mechanism accounting for high activity, we used an OVCAR-8 intraperitoneal model to show that poorly active SS1-CAR-T cells are bound to shed MSLN, whereas highly active h15B6 CAR-T do not contain bound MSLN enabling them to bind to and kill cancer cells.
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Affiliation(s)
- X.F. Liu
- Laboratory of Molecular Biology, National Cancer Institute, NIH, Bethesda, MD20892
| | - M. Onda
- Laboratory of Molecular Biology, National Cancer Institute, NIH, Bethesda, MD20892
| | - J. Schlomer
- Center for Advanced Preclinical Research, Frederick National Lab for Cancer Research Center for Cancer Research, National Cancer Institute, NIH, Frederick, MD 21701
| | - L. Bassel
- Center for Advanced Preclinical Research, Frederick National Lab for Cancer Research Center for Cancer Research, National Cancer Institute, NIH, Frederick, MD 21701
| | - S. Kozlov
- Center for Advanced Preclinical Research, Frederick National Lab for Cancer Research Center for Cancer Research, National Cancer Institute, NIH, Frederick, MD 21701
| | - C.-H. Tai
- Laboratory of Molecular Biology, National Cancer Institute, NIH, Bethesda, MD20892
| | - Q. Zhou
- Laboratory of Molecular Biology, National Cancer Institute, NIH, Bethesda, MD20892
| | - W. Liu
- Laboratory of Molecular Biology, National Cancer Institute, NIH, Bethesda, MD20892
| | - H.-E. Tsao
- Laboratory of Molecular Biology, National Cancer Institute, NIH, Bethesda, MD20892
| | - R. Hassan
- Thoracic and Gastrointestinal Malignancies Branch, National Cancer Institute, NIH, Bethesda, MD20892
| | - M. Ho
- Laboratory of Molecular Biology, National Cancer Institute, NIH, Bethesda, MD20892
| | - I. Pastan
- Laboratory of Molecular Biology, National Cancer Institute, NIH, Bethesda, MD20892
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Wu J, Xiong W, Li J, Liao H, Chai J, Huang X, Lai S, Kozlov S, Chu X, Xu X. Peptide TK-HR from the Skin of Chinese Folk Medicine Frog Hoplobatrachus Rugulosus Accelerates Wound Healing via the Activation of the Neurokinin-1 Receptor. J Med Chem 2023; 66:16002-16017. [PMID: 38015459 DOI: 10.1021/acs.jmedchem.3c01434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Wound healing is a complex process and remains a considerable challenge in clinical trials due to the lack of ideal therapeutic drugs. Here, a new peptide TK-HR identified from the skin of the frog Hoplobatrachus rugulosus was tested for its ability to heal cutaneous wounds in mice. Topical application of TK-HR at doses of 50-200 μg/mL significantly accelerated wound closure without causing any adverse effects in the animals. In vitro and in vivo investigations proved the regulatory role of the peptide on neutrophils, macrophages, keratinocytes, and vein endothelial cells involved in the inflammatory, proliferative, and remodeling phases of wound healing. Notably, TK-HR activated the MAPK and TGF-β-Smad signaling pathways by acting on NK1R in RAW264.7 cells and mice. The current work has identified that TK-HR is a potent wound healing regulator that can be applied for the treatment of wounds, including diabetic foot ulcers and infected wounds, in the future.
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Affiliation(s)
- Jiena Wu
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, P. R. China
| | - Weichen Xiong
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, P. R. China
| | - Jinqiao Li
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, P. R. China
| | - Hang Liao
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, P. R. China
| | - Jinwei Chai
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, P. R. China
| | - Xiaowen Huang
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Shian Lai
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0394, Japan
| | - Sergey Kozlov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Ul. Miklukho-Maklaya 16/10, Moscow 117997, Russia
| | - Xinwei Chu
- Department of Nutrition and Food Hygiene, School of Public Health, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Xueqing Xu
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, P. R. China
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Korolkova Y, Mikov A, Lobas A, Solovyeva E, Surin A, Andreev Y, Gorshkov M, Kozlov S. Venom-gland transcriptomics and venom proteomics of the Tibellus oblongus spider. Sci Data 2023; 10:820. [PMID: 37993463 PMCID: PMC10665394 DOI: 10.1038/s41597-023-02703-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 10/31/2023] [Indexed: 11/24/2023] Open
Abstract
The Tibellus oblongus spider is an active hunter that does not spin webs and remains highly underinvestigated in terms of the venom composition. Here, we describe venom glands transcriptome and venom proteome analysis for unveiling the polypeptide composition of Tibellus oblongus spider venom. The resulting EST database includes 1733 records, including 1263 nucleotide sequences with ORFs, of these 942 have been identified as toxin-coding. The database of peptide sequences was built based on of the transcriptomics results. It contains 217 new toxins, 212 of them were detected in the T. oblongus venom by the proteomics.
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Affiliation(s)
- Yuliya Korolkova
- Department of Molecular Neurobiology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, 16/10 Miklukho-Maklay Str., 117997, Moscow, Russia.
| | - Alexander Mikov
- Scientific Research Institute for Systems Biology and Medicine, Scientific Driveway, 18, 117246, Moscow, Russia
| | - Anna Lobas
- V.L. Talrose Institute for Energy Problems of Chemical Physics, N.N. Semenov Federal Research Center for Chemical Physics, RAS, 38 Bld. 2, Leninsky Pr., 119334, Moscow, Russia
| | - Elizaveta Solovyeva
- V.L. Talrose Institute for Energy Problems of Chemical Physics, N.N. Semenov Federal Research Center for Chemical Physics, RAS, 38 Bld. 2, Leninsky Pr., 119334, Moscow, Russia
- Department of Molecular and Chemical Physics, Moscow Institute of Physics and Technology (National Research University), 9 Institutsky Per., 141700, Dolgoprudny, Russia
| | - Alexey Surin
- V.L. Talrose Institute for Energy Problems of Chemical Physics, N.N. Semenov Federal Research Center for Chemical Physics, RAS, 38 Bld. 2, Leninsky Pr., 119334, Moscow, Russia
| | - Yaroslav Andreev
- Department of Molecular Neurobiology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, 16/10 Miklukho-Maklay Str., 117997, Moscow, Russia
- Moscow Institute of Molecular Medicine, Sechenov First Moscow State Medical University, 8 Bld. 2, Trubetskaya Str., 119991, Moscow, Russia
| | - Mikhail Gorshkov
- V.L. Talrose Institute for Energy Problems of Chemical Physics, N.N. Semenov Federal Research Center for Chemical Physics, RAS, 38 Bld. 2, Leninsky Pr., 119334, Moscow, Russia
| | - Sergey Kozlov
- Department of Molecular Neurobiology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, 16/10 Miklukho-Maklay Str., 117997, Moscow, Russia
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6
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Velluire-Pellat Z, Maréchal E, Moulonguet N, Saïz G, Ménard GC, Kozlov S, Couëdo F, Amari P, Medous C, Paris J, Hostein R, Lesueur J, Feuillet-Palma C, Bergeal N. Author Correction: Hybrid quantum systems with high-T c superconducting resonators. Sci Rep 2023; 13:17407. [PMID: 37833386 PMCID: PMC10575915 DOI: 10.1038/s41598-023-44720-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2023] Open
Affiliation(s)
- Z Velluire-Pellat
- Laboratoire de Physique et d'Étude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, France
| | - E Maréchal
- Laboratoire de Physique et d'Étude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, France
| | - N Moulonguet
- Laboratoire de Physique et d'Étude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, France
| | - G Saïz
- Laboratoire de Physique et d'Étude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, France
| | - G C Ménard
- Laboratoire de Physique et d'Étude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, France
| | - S Kozlov
- Laboratoire de Physique et d'Étude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, France
| | - F Couëdo
- Laboratoire de Physique et d'Étude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, France
- Laboratoire National de Métrologie et d'Essais (LNE), 29 Avenue Roger Hennequin, 78197, Trappes, France
| | - P Amari
- Laboratoire de Physique et d'Étude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, France
| | - C Medous
- CNRS, Institut Fourier, Université Grenoble Alpes, 38000, Grenoble, France
- Université Grenoble Alpes, INRIA, 38000, Grenoble, France
| | - J Paris
- My Cryo Firm, 20 Villa des Carrières, 94120, Fontenay-sous-Bois, France
| | - R Hostein
- My Cryo Firm, 20 Villa des Carrières, 94120, Fontenay-sous-Bois, France
| | - J Lesueur
- Laboratoire de Physique et d'Étude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, France
| | - C Feuillet-Palma
- Laboratoire de Physique et d'Étude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, France
| | - N Bergeal
- Laboratoire de Physique et d'Étude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, France.
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7
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Tsetlin V, Shelukhina I, Kozlov S, Kasheverov I. Fifty Years of Animal Toxin Research at the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS. Int J Mol Sci 2023; 24:13884. [PMID: 37762187 PMCID: PMC10530976 DOI: 10.3390/ijms241813884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/04/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
This review covers briefly the work carried out at our institute (IBCh), in many cases in collaboration with other Russian and foreign laboratories, for the last 50 years. It discusses the discoveries and studies of various animal toxins, including protein and peptide neurotoxins acting on the nicotinic acetylcholine receptors (nAChRs) and on other ion channels. Among the achievements are the determination of the primary structures of the α-bungarotoxin-like three-finger toxins (TFTs), covalently bound dimeric TFTs, glycosylated cytotoxin, inhibitory cystine knot toxins (ICK), modular ICKs, and such giant molecules as latrotoxins and peptide neurotoxins from the snake, as well as from other animal venoms. For a number of toxins, spatial structures were determined, mostly by 1H-NMR spectroscopy. Using this method in combination with molecular modeling, the molecular mechanisms of the interactions of several toxins with lipid membranes were established. In more detail are presented the results of recent years, among which are the discovery of α-bungarotoxin analogs distinguishing the two binding sites in the muscle-type nAChR, long-chain α-neurotoxins interacting with α9α10 nAChRs and with GABA-A receptors, and the strong antiviral effects of dimeric phospholipases A2. A summary of the toxins obtained from arthropod venoms includes only highly cited works describing the molecules' success story, which is associated with IBCh. In marine animals, versatile toxins in terms of structure and molecular targets were discovered, and careful work on α-conotoxins differing in specificity for individual nAChR subtypes gave information about their binding sites.
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Affiliation(s)
- Victor Tsetlin
- Department of Molecular Neuroimmune Signaling, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 16/10 Miklukho-Maklay Str., 117997 Moscow, Russia; (I.S.); (I.K.)
| | - Irina Shelukhina
- Department of Molecular Neuroimmune Signaling, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 16/10 Miklukho-Maklay Str., 117997 Moscow, Russia; (I.S.); (I.K.)
| | - Sergey Kozlov
- Department of Molecular Neurobiology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 16/10 Miklukho-Maklay Str., 117997 Moscow, Russia;
| | - Igor Kasheverov
- Department of Molecular Neuroimmune Signaling, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 16/10 Miklukho-Maklay Str., 117997 Moscow, Russia; (I.S.); (I.K.)
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8
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Velluire-Pellat Z, Maréchal E, Moulonguet N, Saïz G, Ménard GC, Kozlov S, Couëdo F, Amari P, Medous C, Paris J, Hostein R, Lesueur J, Feuillet-Palma C, Bergeal N. Hybrid quantum systems with high-T[Formula: see text] superconducting resonators. Sci Rep 2023; 13:14366. [PMID: 37658090 PMCID: PMC10474070 DOI: 10.1038/s41598-023-41472-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 08/27/2023] [Indexed: 09/03/2023] Open
Abstract
Superconducting microwave resonators are crucial elements of microwave circuits, offering a wide range of potential applications in modern science and technology. While conventional low-T[Formula: see text] superconductors are mainly employed, high-T[Formula: see text] cuprates could offer enhanced temperature and magnetic field operating ranges. Here, we report the realization of [Formula: see text] superconducting coplanar waveguide resonators, and demonstrate a continuous evolution from a lossy undercoupled regime, to a lossless overcoupled regime by adjusting the device geometry, in good agreement with circuit model theory. A high-quality factor resonator was then used to perform electron spin resonance measurements on a molecular spin ensemble across a temperature range spanning two decades. We observe spin-cavity hybridization indicating coherent coupling between the microwave field and the spins in a highly cooperative regime. The temperature dependence of the Rabi splitting and the spin relaxation time point toward an antiferromagnetic coupling of the spins below 2 K. Our findings indicate that high-Tc superconducting resonators hold great promise for the development of functional circuits. Additionally, they suggest novel approaches for achieving hybrid quantum systems based on high-T[Formula: see text] superconductors and for conducting electron spin resonance measurements over a wide range of magnetic fields and temperatures.
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Affiliation(s)
- Z. Velluire-Pellat
- Laboratoire de Physique et d’Étude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, France
| | - E. Maréchal
- Laboratoire de Physique et d’Étude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, France
| | - N. Moulonguet
- Laboratoire de Physique et d’Étude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, France
| | - G. Saïz
- Laboratoire de Physique et d’Étude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, France
| | - G. C. Ménard
- Laboratoire de Physique et d’Étude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, France
| | - S. Kozlov
- Laboratoire de Physique et d’Étude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, France
| | - F. Couëdo
- Laboratoire de Physique et d’Étude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, France
- Laboratoire National de Métrologie et d’Essais (LNE), 29 Avenue Roger Hennequin, 78197 Trappes, France
| | - P. Amari
- Laboratoire de Physique et d’Étude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, France
| | - C. Medous
- CNRS, Institut Fourier, Université Grenoble Alpes, 38000 Grenoble, France
- Université Grenoble Alpes, INRIA, 38000 Grenoble, France
| | - J. Paris
- My Cryo Firm, 20 Villa des Carrières, 94120 Fontenay-sous-Bois, France
| | - R. Hostein
- My Cryo Firm, 20 Villa des Carrières, 94120 Fontenay-sous-Bois, France
| | - J. Lesueur
- Laboratoire de Physique et d’Étude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, France
| | - C. Feuillet-Palma
- Laboratoire de Physique et d’Étude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, France
| | - N. Bergeal
- Laboratoire de Physique et d’Étude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, France
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9
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Okhota S, Kozlov S, Avtaeva Y, Melnikov I, Saburova O, Guria K, Matroze E, Gabbasov Z. Platelet Adhesion Mediated by von Willebrand Factor at High Shear Rates Is Associated with Premature Coronary Artery Disease. Biomedicines 2023; 11:1916. [PMID: 37509554 PMCID: PMC10377430 DOI: 10.3390/biomedicines11071916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/04/2023] [Accepted: 07/05/2023] [Indexed: 07/30/2023] Open
Abstract
This study investigated von Willebrand factor (VWF)-mediated platelet adhesion at high shear rates in patients with premature coronary artery disease (CAD). The study included 84 patients with stable premature CAD and 64 patients without CAD. Whole blood samples were perfused through a microfluidic cell over a collagen-coated surface at a shear rate of 1300 s-1. Measurements were performed before and after the inhibition of VWF-specific platelet GPIb receptors with an anti-GPIb monoclonal antibody (mAb). Platelet adhesion decreased by 77.0% (55.9; 84.7) in patients with premature CAD and by 29.6% (0.0; 59.7) in control patients after the inhibition of VWF-platelet interaction with anti-GPIb mAb (p < 0.001). After adjusting for traditional risk factors, the odds ratio for premature CAD per 1% decrease in GPIb-mediated platelet adhesion was 1.03 (95% CI, 1.02-1.05; p < 0.001). The optimal cut-off level value of GPIb-mediated platelet adhesion was 62.8%, with 70.2% sensitivity and 81.2% specificity for CAD. The plasma levels of VWF or antiplatelet therapy did not affect the GPIb-mediated component of platelet adhesion. Thus, the GPIb-mediated component of platelet adhesion was more pronounced in patients with premature CAD. This may indicate the possible role of excessive VWF-platelet interactions in the development of premature CAD.
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Affiliation(s)
- Sergey Okhota
- Department of Problems of Atherosclerosis, National Medical Research Centre of Cardiology Named after Academician E.I. Chazov of the Ministry of Health of the Russian Federation, 121552 Moscow, Russia
| | - Sergey Kozlov
- Department of Problems of Atherosclerosis, National Medical Research Centre of Cardiology Named after Academician E.I. Chazov of the Ministry of Health of the Russian Federation, 121552 Moscow, Russia
| | - Yuliya Avtaeva
- Laboratory of Cell Hemostasis, National Medical Research Centre of Cardiology Named after Academician E.I. Chazov of the Ministry of Health of the Russian Federation, 121552 Moscow, Russia
| | - Ivan Melnikov
- Laboratory of Cell Hemostasis, National Medical Research Centre of Cardiology Named after Academician E.I. Chazov of the Ministry of Health of the Russian Federation, 121552 Moscow, Russia
- Laboratory of Gas Exchange, Biomechanics and Barophysiology, State Scientific Center of the Russian Federation-The Institute of Biomedical Problems of the Russian Academy of Sciences, 123007 Moscow, Russia
| | - Olga Saburova
- Laboratory of Cell Hemostasis, National Medical Research Centre of Cardiology Named after Academician E.I. Chazov of the Ministry of Health of the Russian Federation, 121552 Moscow, Russia
| | - Konstantin Guria
- Laboratory of Cell Hemostasis, National Medical Research Centre of Cardiology Named after Academician E.I. Chazov of the Ministry of Health of the Russian Federation, 121552 Moscow, Russia
| | - Evgeny Matroze
- Laboratory of Cell Hemostasis, National Medical Research Centre of Cardiology Named after Academician E.I. Chazov of the Ministry of Health of the Russian Federation, 121552 Moscow, Russia
- Department of Innovative Pharmacy, Medical Devices and Biotechnology, Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia
| | - Zufar Gabbasov
- Laboratory of Cell Hemostasis, National Medical Research Centre of Cardiology Named after Academician E.I. Chazov of the Ministry of Health of the Russian Federation, 121552 Moscow, Russia
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Selimov R, Goncharova E, Koriakovtsev P, Gabidullina D, Karsakova J, Kozlov S, Komarov A, Engasheva E, Engashev S. Comparative pharmacokinetics of florfenicol in heifers after intramuscular and subcutaneous administration. J Vet Pharmacol Ther 2023; 46:177-184. [PMID: 36633958 DOI: 10.1111/jvp.13110] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 12/01/2022] [Accepted: 12/25/2022] [Indexed: 01/13/2023]
Abstract
Florfenicol was administered to five heifers intramuscularly at a dose rate of 20 mg/kg bwt and following wash-out period, subcutaneously at a dose rate of 40 mg/kg bwt. Blood plasma samples were collected from heifers before injection of florfenicol and up to 120 h after intramuscular (IM) injection and up to 264 h after subcutaneous (SC) injection. Florfenicol concentrations in plasma were measured by high-performance liquid chromatography with mass-spectrometric detection. Pharmacokinetics of florfenicol was estimated using non-compartment analysis. Mean maximum plasma concentration, area under the concentration-time curve and elimination half-life for florfenicol were 3.2 μg/ml, 101.5 μg × h/ml and 24.5 h, respectively, after IM injection at 20 mg/kg bwt, and 2.7 μg/ml, 194.5 μg × h/ml and 103.8 h, respectively, after SC injection at 40 mg/kg bwt. The obtained results indicated that both administration routes provided comparable bioavailability, whereas SC route was attributed with lower peak levels and markedly slower absorption of florfenicol from injection site. Both administration routes provided plasma florfenicol levels which are expected to be effective against prevalent infectious agents of cattle.
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11
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Matveeva I, Bratchenko I, Khristoforova Y, Bratchenko L, Moryatov A, Kozlov S, Kaganov O, Zakharov V. Multivariate Curve Resolution Alternating Least Squares Analysis of In Vivo Skin Raman Spectra. Sensors (Basel) 2022; 22:9588. [PMID: 36559957 PMCID: PMC9785721 DOI: 10.3390/s22249588] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 12/02/2022] [Accepted: 12/02/2022] [Indexed: 06/17/2023]
Abstract
In recent years, Raman spectroscopy has been used to study biological tissues. However, the analysis of experimental Raman spectra is still challenging, since the Raman spectra of most biological tissue components overlap significantly and it is difficult to separate individual components. New methods of analysis are needed that would allow for the decomposition of Raman spectra into components and the evaluation of their contribution. The aim of our work is to study the possibilities of the multivariate curve resolution alternating least squares (MCR-ALS) method for the analysis of skin tissues in vivo. We investigated the Raman spectra of human skin recorded using a portable conventional Raman spectroscopy setup. The MCR-ALS analysis was performed for the Raman spectra of normal skin, keratosis, basal cell carcinoma, malignant melanoma, and pigmented nevus. We obtained spectral profiles corresponding to the contribution of the optical system and skin components: melanin, proteins, lipids, water, etc. The obtained results show that the multivariate curve resolution alternating least squares analysis can provide new information on the biochemical profiles of skin tissues. Such information may be used in medical diagnostics to analyze Raman spectra with a low signal-to-noise ratio, as well as in various fields of science and industry for preprocessing Raman spectra to remove parasitic components.
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Affiliation(s)
- Irina Matveeva
- Department of Laser and Biotechnical Systems, Samara University, Samara 443086, Russia
| | - Ivan Bratchenko
- Department of Laser and Biotechnical Systems, Samara University, Samara 443086, Russia
| | - Yulia Khristoforova
- Department of Laser and Biotechnical Systems, Samara University, Samara 443086, Russia
| | - Lyudmila Bratchenko
- Department of Laser and Biotechnical Systems, Samara University, Samara 443086, Russia
| | - Alexander Moryatov
- Department of Oncology, Samara State Medical University, Samara 443099, Russia
- Department of Visual Localization Tumors, Samara Regional Clinical Oncology Dispensary, Samara 443031, Russia
| | - Sergey Kozlov
- Department of Oncology, Samara State Medical University, Samara 443099, Russia
- Department of Visual Localization Tumors, Samara Regional Clinical Oncology Dispensary, Samara 443031, Russia
| | - Oleg Kaganov
- Department of Oncology, Samara State Medical University, Samara 443099, Russia
- Department of Visual Localization Tumors, Samara Regional Clinical Oncology Dispensary, Samara 443031, Russia
| | - Valery Zakharov
- Department of Laser and Biotechnical Systems, Samara University, Samara 443086, Russia
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12
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Kozlov S, Okhota S, Avtaeva Y, Melnikov I, Matroze E, Gabbasov Z. Von Willebrand factor in diagnostics and treatment of cardiovascular disease: Recent advances and prospects. Front Cardiovasc Med 2022; 9:1038030. [PMID: 36531725 PMCID: PMC9755348 DOI: 10.3389/fcvm.2022.1038030] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 11/21/2022] [Indexed: 10/10/2023] Open
Abstract
Von Willebrand factor (VWF) is a large multimeric glycoprotein involved in hemostasis. It is essential for platelet adhesion to the subendothelium of the damaged endothelial layer at high shear rates. Such shear rates occur in small-diameter arteries, especially at stenotic sites. Moreover, VWF carries coagulation factor VIII and protects it from proteolysis in the bloodstream. Deficiency or dysfunction of VWF predisposes to bleeding. In contrast, an increase in the concentration of high molecular weight multimers (HMWM) of VWF is closely associated with arterial thrombotic events. Severe aortic stenosis (AS) or hypertrophic obstructive cardiomyopathy (HOCM) can deplete HMWM of VWF and lead to cryptogenic, gastrointestinal, subcutaneous, and mucosal bleeding. Considering that VWF facilitates primary hemostasis and a local inflammatory response at high shear rates, its dysfunction may contribute to the development of coronary artery disease (CAD) and its complications. However, current diagnostic methods do not allow for an in-depth analysis of this contribution. The development of novel diagnostic techniques, primarily microfluidic, is underway. Such methods can provide physiologically relevant assessments of VWF function at high shear rates; however, they have not been introduced into clinical practice. The development and use of agents targeting VWF interaction with the vessel wall and/or platelets may be reasonable in prevention of CAD and its complications, given the prominent role of VWF in arterial thrombosis.
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Affiliation(s)
- Sergey Kozlov
- Department of Problems of Atherosclerosis, National Medical Research Centre of Cardiology Named After Academician E.I. Chazov of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Sergey Okhota
- Department of Problems of Atherosclerosis, National Medical Research Centre of Cardiology Named After Academician E.I. Chazov of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Yuliya Avtaeva
- Laboratory of Cell Hemostasis, National Medical Research Centre of Cardiology Named After Academician E.I. Chazov of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Ivan Melnikov
- Laboratory of Cell Hemostasis, National Medical Research Centre of Cardiology Named After Academician E.I. Chazov of the Ministry of Health of the Russian Federation, Moscow, Russia
- Laboratory of Gas Exchange, Biomechanics and Barophysiology, State Scientific Center of the Russian Federation—The Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Evgeny Matroze
- Laboratory of Cell Hemostasis, National Medical Research Centre of Cardiology Named After Academician E.I. Chazov of the Ministry of Health of the Russian Federation, Moscow, Russia
- Department of Innovative Pharmacy, Medical Devices and Biotechnology, Moscow Institute of Physics and Technology, Moscow, Russia
| | - Zufar Gabbasov
- Laboratory of Cell Hemostasis, National Medical Research Centre of Cardiology Named After Academician E.I. Chazov of the Ministry of Health of the Russian Federation, Moscow, Russia
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13
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Kozlov S, Spirina E, Ashaev I, Bukharina A, Gaysin A. Novel Modification of the Collective Dynamic Routing Method for Sensors' Communication in Wi-Fi Public Networks. Sensors (Basel) 2022; 22:8602. [PMID: 36433197 PMCID: PMC9695523 DOI: 10.3390/s22228602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/03/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
The widespread use of the Internet of Things makes it relevant to use public IP networks for simultaneous access by both users and wireless sensors. To achieve this, a significant reduction in the subscriber devices' energy consumption is required. This paper analyzes the application features of the collective dynamic routing method both with and without the use of a robust method for estimating the channel data rate for sensors' communication in wireless public networks. Based on the analysis, a novel modification of the collective dynamic routing method has been developed that reduces the sensors' energy consumption while keeping a high data rate and short delivery time for users. An analysis of the network load, the total data transfer rate over the network, and the parameters affecting the sensors' energy consumption was carried out for a segment of a seamless IEEE 802.11ax network. The simulation demonstrated a high efficiency of using a novel modification of the collective dynamic routing method for access to users and wireless sensors.
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Khristoforova Y, Bratchenko I, Bratchenko L, Moryatov A, Kozlov S, Kaganov O, Zakharov V. Combination of Optical Biopsy with Patient Data for Improvement of Skin Tumor Identification. Diagnostics (Basel) 2022; 12:diagnostics12102503. [PMID: 36292192 PMCID: PMC9600416 DOI: 10.3390/diagnostics12102503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/11/2022] [Accepted: 10/12/2022] [Indexed: 11/29/2022] Open
Abstract
In this study, patient data were combined with Raman and autofluorescence spectral parameters for more accurate identification of skin tumors. The spectral and patient data of skin tumors were classified by projection on latent structures and discriminant analysis. The importance of patient risk factors was determined using statistical improvement of ROC AUCs when spectral parameters were combined with risk factors. Gender, age and tumor localization were found significant for classification of malignant versus benign neoplasms, resulting in improvement of ROC AUCs from 0.610 to 0.818 (p < 0.05). To distinguish melanoma versus pigmented skin tumors, the same factors significantly improved ROC AUCs from 0.709 to 0.810 (p < 0.05) when analyzed together according to the spectral data, but insignificantly (p > 0.05) when analyzed individually. For classification of melanoma versus seborrheic keratosis, no statistical improvement of ROC AUC was observed when the patient data were added to the spectral data. In all three classification models, additional risk factors such as occupational hazards, family history, sun exposure, size, and personal history did not statistically improve the ROC AUCs. In summary, combined analysis of spectral and patient data can be significant for certain diagnostic tasks: patient data demonstrated the distribution of skin tumor incidence in different demographic groups, whereas tumors within each group were distinguished using the spectral differences.
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Affiliation(s)
- Yulia Khristoforova
- Laser and Biotechnical Systems Department, Samara National Research University, 34 Moskovskoe Shosse, 443086 Samara, Russia
- Correspondence:
| | - Ivan Bratchenko
- Laser and Biotechnical Systems Department, Samara National Research University, 34 Moskovskoe Shosse, 443086 Samara, Russia
| | - Lyudmila Bratchenko
- Laser and Biotechnical Systems Department, Samara National Research University, 34 Moskovskoe Shosse, 443086 Samara, Russia
| | - Alexander Moryatov
- Department of Oncology, Samara State Medical University, 89 Chapaevskaya Str., 443099 Samara, Russia
| | - Sergey Kozlov
- Department of Oncology, Samara State Medical University, 89 Chapaevskaya Str., 443099 Samara, Russia
| | - Oleg Kaganov
- Department of Oncology, Samara State Medical University, 89 Chapaevskaya Str., 443099 Samara, Russia
| | - Valery Zakharov
- Laser and Biotechnical Systems Department, Samara National Research University, 34 Moskovskoe Shosse, 443086 Samara, Russia
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15
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Melnikov I, Kozlov S, Pogorelova O, Tripoten M, Khamchieva L, Balakhonova T, Saburova O, Avtaeva Y, Zvereva M, Kuznetsova T, Prokofieva L, Gabbasov Z. Correlation of monomeric C-reactive protein level with subclinical carotid atherosclerosis progression in patients with low-grade carotid stenoses and moderate score risk. Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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16
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Melnikov I, Kozlov S, Pogorelova O, Tripoten M, Khamchieva L, Saburova O, Avtaeva Y, Zvereva M, Matroze E, Kuznetsova T, Prokofieva L, Balakhonova T, Gabbasov Z. The monomeric C-reactive protein level is associated with the increase in carotid plaque number in patients with subclinical carotid atherosclerosis. Front Cardiovasc Med 2022; 9:968267. [PMID: 35935662 PMCID: PMC9353581 DOI: 10.3389/fcvm.2022.968267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 06/30/2022] [Indexed: 12/03/2022] Open
Abstract
The high-sensitivity C-reactive protein (hsCRP) assay measures the level of the pentameric form of CRP in blood. Currently, there are no available assays measuring the level of the monomeric form of CRP (mCRP), produced at sites of local inflammation. We developed an assay measuring the mCRP level in blood plasma with functional beads for flow cytometry. The assay was used to measure the mCRP level in 80 middle-aged individuals with initially moderate cardiovascular SCORE risk. By the time of the mCRP measurement, the patients have been followed up for subclinical carotid atherosclerosis progression for 7 years. Ultrasound markers of subclinical atherosclerosis, which included plaque number (PN) and total plaque height (PH), were measured at baseline and at the 7th-year follow-up survey. Inflammatory biomarkers, including mCRP, hsCRP, inteleukin-6 (IL-6) and von Willebrand factor (VWF) level, were measured at the 7th-year follow-up survey. The median level of mCRP was 5.2 (3.3; 7.1) μg/L, hsCRP 1.05 (0.7; 2.1) mg/L, IL-6 0.0 (0.0; 2.8) pg/mL, VWF 106 (77; 151) IU/dL. In the patients with the mCRP level below median vs. the patients with the median mCRP level or higher, change from baseline in PN was 0.0 (0.0; 1.0) vs. 1.0 (1.0; 2.0) and PH 0.22 (−0.24; 1.91) mm vs. 1.97 (1.14; 3.14) mm, respectively (p < 0.05). The adjusted odds ratio for the formation of new carotid atherosclerotic plaques was 4.7 (95% CI 1.7; 13.2) for the patients with the median mCRP level or higher. The higher mCRP level is associated with the more pronounced increase in PN and PH in patients with normal level of traditional inflammatory biomarkers and initially moderate cardiovascular SCORE risk.
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Affiliation(s)
- Ivan Melnikov
- Laboratory of Cell Hemostasis, National Medical Research Centre of Cardiology named after academician E.I. Chazov of the Ministry of Health of the Russian Federation, Moscow, Russia
- Laboratory of Gas Exchange, Biomechanics and Barophysiology, State Scientific Center of the Russian Federation – The Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
- *Correspondence: Ivan Melnikov
| | - Sergey Kozlov
- Laboratory of Problems of Atherosclerosis, National Medical Research Centre of Cardiology named after academician E.I. Chazov of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Olga Pogorelova
- Department of Ultrasound Diagnostics, National Medical Research Centre of Cardiology named after academician E.I. Chazov of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Maria Tripoten
- Department of Ultrasound Diagnostics, National Medical Research Centre of Cardiology named after academician E.I. Chazov of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Leyla Khamchieva
- Department of Ultrasound Diagnostics, National Medical Research Centre of Cardiology named after academician E.I. Chazov of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Olga Saburova
- Laboratory of Cell Hemostasis, National Medical Research Centre of Cardiology named after academician E.I. Chazov of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Yuliya Avtaeva
- Laboratory of Cell Hemostasis, National Medical Research Centre of Cardiology named after academician E.I. Chazov of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Maria Zvereva
- Laboratory of Cell Hemostasis, National Medical Research Centre of Cardiology named after academician E.I. Chazov of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Evgeny Matroze
- Laboratory of Cell Hemostasis, National Medical Research Centre of Cardiology named after academician E.I. Chazov of the Ministry of Health of the Russian Federation, Moscow, Russia
- Department of Innovative Pharmacy, Medical Devices and Biotechnology, Moscow Institute of Physics and Technology, Moscow, Russia
| | - Tatiana Kuznetsova
- Laboratory of Neurohormonal Regulation of Cardiovascular Diseases, National Medical Research Centre of Cardiology named after academician E.I. Chazov of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Lyudmila Prokofieva
- Laboratory of Cell Hemostasis, National Medical Research Centre of Cardiology named after academician E.I. Chazov of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Tatiana Balakhonova
- Department of Ultrasound Diagnostics, National Medical Research Centre of Cardiology named after academician E.I. Chazov of the Ministry of Health of the Russian Federation, Moscow, Russia
- Department of Cardiology, Functional and Ultrasound Diagnostics, Sechenov University, Moscow, Russia
| | - Zufar Gabbasov
- Laboratory of Cell Hemostasis, National Medical Research Centre of Cardiology named after academician E.I. Chazov of the Ministry of Health of the Russian Federation, Moscow, Russia
- Zufar Gabbasov
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17
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Kulbatskii D, Shenkarev Z, Bychkov M, Loktyushov E, Shulepko M, Koshelev S, Povarov I, Popov A, Peigneur S, Chugunov A, Kozlov S, Sharonova I, Efremov R, Skrebitsky V, Tytgat J, Kirpichnikov M, Lyukmanova E. Human Three-Finger Protein Lypd6 Is a Negative Modulator of the Cholinergic System in the Brain. Front Cell Dev Biol 2021; 9:662227. [PMID: 34631692 PMCID: PMC8494132 DOI: 10.3389/fcell.2021.662227] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 08/30/2021] [Indexed: 11/19/2022] Open
Abstract
Lypd6 is a GPI-tethered protein from the Ly-6/uPAR family expressed in the brain. Lypd6 enhances the Wnt/β-catenin signaling, although its action on nicotinic acetylcholine receptors (nAChRs) have been also proposed. To investigate a cholinergic activity of Lypd6, we studied a recombinant water-soluble variant of the human protein (ws-Lypd6) containing isolated “three-finger” LU-domain. Experiments at different nAChR subtypes expressed in Xenopus oocytes revealed the negative allosteric modulatory activity of ws-Lypd6. Ws-Lypd6 inhibited ACh-evoked currents at α3β4- and α7-nAChRs with IC50 of ∼35 and 10 μM, respectively, and the maximal amplitude of inhibition of 30–50%. EC50 of ACh at α3β4-nAChRs (∼30 μM) was not changed in the presence of 35 μM ws-Lypd6, while the maximal amplitude of ACh-evoked current was reduced by ∼20%. Ws-Lypd6 did not elicit currents through nAChRs in the absence of ACh. Application of 1 μM ws-Lypd6 significantly inhibited (up to ∼28%) choline-evoked current at α7-nAChRs in rat hippocampal slices. Similar to snake neurotoxin α-bungarotoxin, ws-Lypd6 suppressed the long-term potentiation (LTP) in mouse hippocampal slices. Colocalization of endogenous GPI-tethered Lypd6 with α3β4- and α7-nAChRs was detected in primary cortical and hippocampal neurons. Ws-Lypd6 interaction with the extracellular domain of α7-nAChR was modeled using the ensemble protein-protein docking protocol. The interaction of all three Lypd6 loops (“fingers”) with the entrance to the orthosteric ligand-binding site and the loop C of the primary receptor subunit was predicted. The results obtained allow us to consider Lypd6 as the endogenous negative modulator involved in the regulation of the cholinergic system in the brain.
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Affiliation(s)
- Dmitrii Kulbatskii
- Bioengineering Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences (RAS), Moscow, Russia
| | - Zakhar Shenkarev
- Structural Biology Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences (RAS), Moscow, Russia.,Phystech School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Moscow, Russia
| | - Maxim Bychkov
- Bioengineering Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences (RAS), Moscow, Russia
| | - Eugene Loktyushov
- Bioengineering Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences (RAS), Moscow, Russia
| | - Mikhail Shulepko
- Bioengineering Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences (RAS), Moscow, Russia
| | - Sergey Koshelev
- Department of Molecular Neurobiology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences (RAS), Moscow, Russia
| | - Igor Povarov
- Brain Research Department, Research Center of Neurology, Moscow, Russia
| | - Alexander Popov
- Department of Molecular Neurobiology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences (RAS), Moscow, Russia.,Institute of Neuroscience, Nizhny Novgorod University, Nizhny Novgorod, Russia
| | - Steve Peigneur
- Toxicology and Pharmacology, University of Leuven (KU Leuven), Leuven, Belgium
| | - Anton Chugunov
- Structural Biology Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences (RAS), Moscow, Russia.,Phystech School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Moscow, Russia.,International Laboratory for Supercomputer Atomistic Modelling and Multi-Scale Analysis, National Research University Higher School of Economics, Moscow, Russia
| | - Sergey Kozlov
- Department of Molecular Neurobiology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences (RAS), Moscow, Russia
| | - Irina Sharonova
- Brain Research Department, Research Center of Neurology, Moscow, Russia
| | - Roman Efremov
- Structural Biology Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences (RAS), Moscow, Russia.,Phystech School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Moscow, Russia.,International Laboratory for Supercomputer Atomistic Modelling and Multi-Scale Analysis, National Research University Higher School of Economics, Moscow, Russia
| | | | - Jan Tytgat
- Toxicology and Pharmacology, University of Leuven (KU Leuven), Leuven, Belgium
| | - Mikhail Kirpichnikov
- Bioengineering Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences (RAS), Moscow, Russia.,Biological Faculty, Lomonosov Moscow State University, Moscow, Russia
| | - Ekaterina Lyukmanova
- Bioengineering Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences (RAS), Moscow, Russia.,Phystech School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Moscow, Russia.,Biological Faculty, Lomonosov Moscow State University, Moscow, Russia
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18
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Melnikov I, Kozlov S, Saburova O, Avtaeva Y, Zvereva M, Kuznetsova T, Guseva O, Prokofieva L, Gabbasov Z. Monomeric C-reactive protein as a marker of residual inflammatory risk in patients with asymptomatic carotid atherosclerosis. Atherosclerosis 2021. [DOI: 10.1016/j.atherosclerosis.2021.06.607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Bratchenko I, Khristoforova Y, Bratchenko L, Moryatov A, Kozlov S, Borisova E, Zakharov V. Optical Biopsy of Amelanotic Melanoma with Raman and Autofluorescence Spectra Stimulated by 785 nm Laser Excitation. J-BPE 2021. [DOI: 10.18287/jbpe21.07.020308] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
In this work, Raman and autofluorescence spectroscopy in the near-infrared region has been used for examining amelanotic melanoma as the most dangerous type of malignant melanoma. There were 9 patients with amelanotic melanoma, 60 with pigmented melanoma and 120 with basal cell carcinoma enrolled in this study. We studied 9 amelanotic melanoma cases to differentiate them from basal cell carcinoma (n = 120) and pigmented malignant melanoma (n = 60) using portable spectroscopy setup with laser excitation source at 785 nm and low-cost spectrometer. The spectra of the different tumor type were classified using projection on the latent structure analysis with 10-Fold cross-validation. The results of the tumor classification were presented using box-plot diagrams and ROC analysis. We obtained 0.53 and 0.88 ROC AUCs for distinguishing amelanotic melanoma versus (1) pigmented melanoma and (2) basal cell carcinoma respectively based on the joint autofluorescence and Raman spectroscopy analysis that allowed one to diagnose amelanotic melanoma as true melanoma but no basal cell carcinoma.
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20
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Sintsova O, Gladkikh I, Klimovich A, Palikova Y, Palikov V, Styshova O, Monastyrnaya M, Dyachenko I, Kozlov S, Leychenko E. TRPV1 Blocker HCRG21 Suppresses TNF-α Production and Prevents the Development of Edema and Hypersensitivity in Carrageenan-Induced Acute Local Inflammation. Biomedicines 2021; 9:biomedicines9070716. [PMID: 34201624 PMCID: PMC8301426 DOI: 10.3390/biomedicines9070716] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/17/2021] [Accepted: 06/22/2021] [Indexed: 01/09/2023] Open
Abstract
Currently the TRPV1 (transient receptor potential vanilloid type 1) channel is considered to be one of the main targets for pro-inflammatory mediators including TNF-α. Similarly, the inhibition of TRPV1 activity in the peripheral nervous system affects pro-inflammatory mediator production and enhances analgesia in total. In this study, the analgesic and anti-inflammatory effects of HCRG21, the first peptide blocker of TRPV1, were demonstrated in a mice model of carrageenan-induced paw edema. HCRG21 in doses of 0.1 and 1 mg/kg inhibited edema formation compared to the control, demonstrated complete edema disappearance in 24 h in a dose of 1 mg/kg, and effectively reduced the productionof TNF-α in both doses examined. ELISA analysis of blood taken 24 h after carrageenan administration showed a dramatic cytokine value decrease to 25 pg/mL by HCRG21 versus 100 pg/mL in the negative control group, which was less than the TNF-α level in the intact group (40 pg/mL). The HCRG21 demonstrated potent analgesic effects on the models of mechanical and thermal hyperalgesia in carrageenan-induced paw edema. The HCRG21 relief effect was comparable to that of indomethacin taken orally in a dose of 5 mg/kg, but was superior to this nonsteroidal anti-inflammatory drug (NSAID) in duration (which lasted 24 h) in the mechanical sensitivity experiment. The results confirm the existence of a close relationship between TRPV1 activity and TNF-α production once again, and prove the superior pharmacological potential of TRPV1 blockers and the HCRG21 peptide in particular.
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Affiliation(s)
- Oksana Sintsova
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159, Pr. 100 let Vladivostoku, 690022 Vladivostok, Russia; (I.G.); (A.K.); (O.S.); (M.M.); (E.L.)
- Correspondence: ; Tel.: +7-(914)-718-59-18
| | - Irina Gladkikh
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159, Pr. 100 let Vladivostoku, 690022 Vladivostok, Russia; (I.G.); (A.K.); (O.S.); (M.M.); (E.L.)
| | - Anna Klimovich
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159, Pr. 100 let Vladivostoku, 690022 Vladivostok, Russia; (I.G.); (A.K.); (O.S.); (M.M.); (E.L.)
| | - Yulia Palikova
- Branch of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Prospekt Nauki, 6, 142290 Pushchino, Russia; (Y.P.); (V.P.); (I.D.)
| | - Viktor Palikov
- Branch of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Prospekt Nauki, 6, 142290 Pushchino, Russia; (Y.P.); (V.P.); (I.D.)
| | - Olga Styshova
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159, Pr. 100 let Vladivostoku, 690022 Vladivostok, Russia; (I.G.); (A.K.); (O.S.); (M.M.); (E.L.)
| | - Margarita Monastyrnaya
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159, Pr. 100 let Vladivostoku, 690022 Vladivostok, Russia; (I.G.); (A.K.); (O.S.); (M.M.); (E.L.)
| | - Igor Dyachenko
- Branch of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Prospekt Nauki, 6, 142290 Pushchino, Russia; (Y.P.); (V.P.); (I.D.)
| | - Sergey Kozlov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, 117997 Moscow, Russia;
| | - Elena Leychenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159, Pr. 100 let Vladivostoku, 690022 Vladivostok, Russia; (I.G.); (A.K.); (O.S.); (M.M.); (E.L.)
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Sintsova O, Gladkikh I, Monastyrnaya M, Tabakmakher V, Yurchenko E, Menchinskaya E, Pislyagin E, Andreev Y, Kozlov S, Peigneur S, Tytgat J, Aminin D, Kozlovskaya E, Leychenko E. Sea Anemone Kunitz-Type Peptides Demonstrate Neuroprotective Activity in the 6-Hydroxydopamine Induced Neurotoxicity Model. Biomedicines 2021; 9:biomedicines9030283. [PMID: 33802055 PMCID: PMC8001995 DOI: 10.3390/biomedicines9030283] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 02/27/2021] [Accepted: 03/07/2021] [Indexed: 01/08/2023] Open
Abstract
Kunitz-type peptides from venomous animals have been known to inhibit different proteinases and also to modulate ion channels and receptors, demonstrating analgesic, anti-inflammatory, anti-histamine and many other biological activities. At present, there is evidence of their neuroprotective effects. We have studied eight Kunitz-type peptides of the sea anemone Heteractis crispa to find molecules with cytoprotective activity in the 6-OHDA-induced neurotoxicity model on neuroblastoma Neuro-2a cells. It has been shown that only five peptides significantly increase the viability of neuronal cells treated with 6-OHDA. The TRPV1 channel blocker, HCRG21, has revealed the neuroprotective effect that could be indirect evidence of TRPV1 involvement in the disorders associated with neurodegeneration. The pre-incubation of Neuro-2a cells with HCRG21 followed by 6-OHDA treatment has resulted in a prominent reduction in ROS production compared the untreated cells. It is possible that the observed effect is due to the ability of the peptide act as an efficient free-radical scavenger. One more leader peptide, InhVJ, has shown a neuroprotective activity and has been studied at concentrations of 0.01–10.0 µM. The target of InhVJ is still unknown, but it was the best of all eight homologous peptides in an absolute cell viability increment on 38% of the control in the 6-OHDA-induced neurotoxicity model. The targets of the other three active peptides remain unknown.
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Affiliation(s)
- Oksana Sintsova
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159 Pr. 100 let Vladivostoku, 690022 Vladivostok, Russia; (O.S.); (I.G.); (M.M.); (E.Y.); (E.M.); (E.P.); (D.A.); (E.K.)
| | - Irina Gladkikh
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159 Pr. 100 let Vladivostoku, 690022 Vladivostok, Russia; (O.S.); (I.G.); (M.M.); (E.Y.); (E.M.); (E.P.); (D.A.); (E.K.)
| | - Margarita Monastyrnaya
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159 Pr. 100 let Vladivostoku, 690022 Vladivostok, Russia; (O.S.); (I.G.); (M.M.); (E.Y.); (E.M.); (E.P.); (D.A.); (E.K.)
| | - Valentin Tabakmakher
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (V.T.); (Y.A.); (S.K.)
| | - Ekaterina Yurchenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159 Pr. 100 let Vladivostoku, 690022 Vladivostok, Russia; (O.S.); (I.G.); (M.M.); (E.Y.); (E.M.); (E.P.); (D.A.); (E.K.)
| | - Ekaterina Menchinskaya
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159 Pr. 100 let Vladivostoku, 690022 Vladivostok, Russia; (O.S.); (I.G.); (M.M.); (E.Y.); (E.M.); (E.P.); (D.A.); (E.K.)
| | - Evgeny Pislyagin
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159 Pr. 100 let Vladivostoku, 690022 Vladivostok, Russia; (O.S.); (I.G.); (M.M.); (E.Y.); (E.M.); (E.P.); (D.A.); (E.K.)
| | - Yaroslav Andreev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (V.T.); (Y.A.); (S.K.)
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, Trubetskaya str. 8, bld. 2, 119991 Moscow, Russia
| | - Sergey Kozlov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (V.T.); (Y.A.); (S.K.)
| | - Steve Peigneur
- Toxicology and Pharmacology, University of Leuven (KU Leuven), Campus Gasthuisberg O&N2, Herestraat 49, P.O. Box 922, B-3000 Leuven, Belgium; (S.P.); (J.T.)
| | - Jan Tytgat
- Toxicology and Pharmacology, University of Leuven (KU Leuven), Campus Gasthuisberg O&N2, Herestraat 49, P.O. Box 922, B-3000 Leuven, Belgium; (S.P.); (J.T.)
| | - Dmitry Aminin
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159 Pr. 100 let Vladivostoku, 690022 Vladivostok, Russia; (O.S.); (I.G.); (M.M.); (E.Y.); (E.M.); (E.P.); (D.A.); (E.K.)
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung 80708, Taiwan
| | - Emma Kozlovskaya
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159 Pr. 100 let Vladivostoku, 690022 Vladivostok, Russia; (O.S.); (I.G.); (M.M.); (E.Y.); (E.M.); (E.P.); (D.A.); (E.K.)
| | - Elena Leychenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159 Pr. 100 let Vladivostoku, 690022 Vladivostok, Russia; (O.S.); (I.G.); (M.M.); (E.Y.); (E.M.); (E.P.); (D.A.); (E.K.)
- Correspondence: ; Tel.: +7-(423)-231-11-68
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Kozlov S, Caprnda M, Chernova O, Matveeva M, Alekseeva I, Gazdikova K, Gaspar L, Kruzliak P, Filipova S, Gabbasov Z. Peak Responses during Exercise Treadmill Testing using Individualized Ramp Protocol and Modified Bruce Protocol in Elderly Patients. Folia Med (Plovdiv) 2021; 62:76-81. [PMID: 32337910 DOI: 10.3897/folmed.62.e49809] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 07/18/2019] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Exercise capacity is well known to be an important prognostic factor in patients with cardiovascular disease and among healthy persons. AIM To determine if there are any differences between the peak exercise response during exercise treadmill testing with the individualized ramp protocol and the modified Bruce protocol in elderly patients. MATERIALS AND METHODS The study included 40 patients (both male and female), aged 70 years and older, who had not had a baseline history of the confirmed coronary artery disease or heart failure diagnoses. All patients underwent exercise treadmill testing using modified Bruce protocol and individualized ramp protocol for 2 consecutive days. Peak heart rate, peak systolic and diastolic blood pressure, peak pressure-rate double product, exercise duration, and peak metabolic equivalents were recorded in both tests. Perceived level of exertion was evaluated using the Borg 10-point scale. RESULTS The average duration of exercise was longer for the ramp protocol than for the modified Bruce protocol. When the modified Bruce protocol was used, patients achieved a lower workload than they did in using the ramp protocol. The rating of perceived exertion using the revised Borg scale (0 to 10) was 5.6±1.4 for the ramp protocol and 8.7±1.4 for the modified Bruce protocol, which indicates that the patients found the ramp protocol easier. CONCLUSION In elderly patients the individualized ramp treadmill protocol allows to achieve the optimal test duration with higher degrees of workload and greater patient comfort during the test more often than does the modified Bruce protocol.
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Affiliation(s)
| | - Martin Caprnda
- Comenius University and University Hospital, Bratislava, Slovakia
| | | | | | | | | | - Ludovit Gaspar
- Comenius University and University Hospital, Bratislava, Slovakia
| | - Peter Kruzliak
- University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic
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Staroverov S, Kozlov S, Fomin A, Gabalov K, Volkov A, Domnitsky I, Dykman L, Guliy O. Synthesis of a silymarin-gold nanoparticle conjugate and analysis of its liver-protecting activity. Curr Pharm Biotechnol 2021; 22:2001-2007. [PMID: 33388017 DOI: 10.2174/1389201022666210101163734] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 10/08/2020] [Accepted: 11/11/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND The liver disease problem prompts investigators to search for new methods of liver treatment. INTRODUCTION Silymarin (Sil) protects the liver by reducing the concentration of free radicals and the extent of damage to the cell membranes. A particularly interesting method to increase the bioavailability of Sil is to use synthesized gold nanoparticles (AuNPs) as reagents. The study considered whether it was possible to use the silymarin-AuNP conjugate as a potential liver-protecting drug. METHOD AuNPs were conjugated to Sil and examine the liver-protecting activity of the conjugate. Experimental hepatitis and hepatocyte cytolysis after carbon tetrachloride actionwere used as a model system, and the experiments were conducted on laboratory animals. RESULT For the first time, silymarin was conjugated to colloidal gold nanoparticles (AuNPs). Electron microscopy showed that the resultant preparations were monodisperse and that the mean conjugate diameter was 18-30 nm ± 0.5 nm (mean diameter of the native nanoparticles, 15 ± 0.5 nm). In experimental hepatitis in mice, conjugate administration interfered with glutathione depletion in hepatocytes in response to carbon tetrachloride was conducive to an increase in energy metabolism, and stimulated the monocyte-macrophage function of the liver. The results were confirmed by the high respiratory activity of the hepatocytes in cell culture. CONCLUSION We conclude that the silymarin-AuNP conjugate holds promise as a liver-protecting agent in acute liver disease caused by carbon tetrachloride poisoning.
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Affiliation(s)
| | - Sergey Kozlov
- Saratov State Agrarian University, Saratov. Russian Federation
| | - Alexander Fomin
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Saratov . Russian Federation
| | - Konstantib Gabalov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Saratov . Russian Federation
| | - Alexey Volkov
- Saratov State Agrarian University, Saratov. Russian Federation
| | - Ivan Domnitsky
- Saratov State Agrarian University, Saratov. Russian Federation
| | - Lev Dykman
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Saratov . Russian Federation
| | - Olga Guliy
- Saratov State Agrarian University, Saratov. Russian Federation
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Melnikov I, Kozlov S, Saburova O, Avtaeva Y, Zvereva M, Kuznetsova T, Golubeva N, Zyuryaev I, Guseva O, Prokofieva L, Gabbasov Z. Modified C-reactive protein may enhance inflammatory response in acute myocardial infarction. Atherosclerosis 2020. [DOI: 10.1016/j.atherosclerosis.2020.10.710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Avtaeva Y, Melnikov I, Kozlov S, Okhota S, Gabbasov Z. Shear stress induced activation of von Willebrand factor may facilitate thrombotic events in coronary artery disease in young adults. Atherosclerosis 2020. [DOI: 10.1016/j.atherosclerosis.2020.10.243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Danilov A, Kozlov S, Zharkova L, Sviridov V, Sviridova Y, Bagaturiya G, Evseev A. [PRACTICE OF MANAGEMENT OF PATIENTS WITH INFECTIOUS ENDOCARDITIS IN CONDITIONS OF LOW FREQUENCY OF ETIOLOGICALLY SIGNIFICANT PATHOGENS IN THE RUSSIAN FEDERATION]. Georgian Med News 2020:75-79. [PMID: 32141854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The article presents the results of a multicenter study of the etiology, antibiotic sensitivity and pharmacoepidemiology of infective endocarditis in the Russian Federation. The purpose of this study is to analyze the current practice of management of patients with infective endocarditis in conditions of low frequency of etiologically significant pathogens in the Russian Federation. The study included patients of both sexes of all age groups with definite and probable infective endocarditis. 406 cases of infectious endocarditis (240 in retrospect and 166 in the prospective part) were analyzed. Etiologically significant pathogen was isolated in 144 cases (35.5%). The structure of pathogens was dominated by gram (+) cocci (90.3%), most often - Staphylococcus aureus (46.5% of all isolated pathogens). Aminoglycosides (22.8%), parenteral cephalosporins of the III generation (22.1%) and glycopeptides (14.5%) were most frequently used in the course of starting antimicrobial therapy. When changing the mode of antimicrobial therapy, glycopeptides (18.6%), aminoglycosides (15.3%), fluoroquinolones (11.2%) and parenteral cephalosporins of generation III (9.5%) were most often prescribed.
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Affiliation(s)
- A Danilov
- 1Smolensk State Medical University, Russia
| | - S Kozlov
- 1Smolensk State Medical University, Russia
| | - L Zharkova
- 1Smolensk State Medical University, Russia
| | - V Sviridov
- 2St. Petersburg State Pediatric Medical University, Russia
| | - Yu Sviridova
- 2St. Petersburg State Pediatric Medical University, Russia
| | - G Bagaturiya
- 2St. Petersburg State Pediatric Medical University, Russia
| | - A Evseev
- 1Smolensk State Medical University, Russia
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Melnikov I, Avtaeva Y, Kozlov S, Nozadze D, Gabbasov Z. P721Shear stress induced unfolding of von willebrand factor may be involved in the premature development of myocardial infarction. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0326] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
Normally, von Willebrand factor (vWF) becomes highly reactive with platelets upon unfolding into a fibrillar conformation at critical shear rate (more than 5000 s–1), that may occur in stenotic arteries. At shear rates below critical value (1200–1300 s–1), which occur in intact coronary arteries, normally there is no conformational rearrangement of vWF. Pathologic unfolding of vWF at shear rates below critical value may increase a risk of the development of coronary thrombosis. There is little information on the role of shear stress induced conformational rearrangement of vWF in the development of myocardial infarction in young individuals.
Purpose
To investigate vWF-dependent platelet adhesion of patients with premature myocardial infarction at shear rates below critical value (1200–1300 s–1).
Methods
Using a microfluidic system, we measured platelet adhesion to a fibrinogen-coated optical surface at shear rates of 1200–1300 s–1 during 10 minutes. We assessed platelet-rich plasma of 8 male persons 40–52 years old, who had previous myocardial infarction at the age of 34–39. The control group comprised 6 healthy male volunteers 30–55 years old. We compared the intensity of scattered laser light measured in volts (V) at 10th minute. To study vWF-dependent platelet adhesion, we blocked GPIb receptor with monoclonal antibody to inhibit platelet interaction with vWF. To compare the intensity of vWF-dependent platelet adhesion with normally occurring adhesion to fibrinogen, we blocked GPIIb/IIIa receptor with monoclonal antibody.
Results
The inhibition of GPIb vWF-receptor decreased platelet adhesion to fibrinogen surface at shear rates of 1200–1300 s–1 by 17.8±4.7% in healthy volunteers and by 92±2.8% in persons with premature myocardial infarction (p<0.05). Inhibition of GPIIb/IIIa receptor decreased platelet adhesion by 91.5±3.8% in healthy volunteers and by 97.3±3.2% in persons with premature myocardial infarction.
Conclusion
Pathologic unfolding of vWF at shear rates below critical value may be involved in the development of premature myocardial infarction.
Acknowledgement/Funding
This work was supported by the grant of the Russian Science Foundation (project #16-15-10098)
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Affiliation(s)
- I Melnikov
- Cardiology Research and Production Center, Moscow, Russian Federation
| | - Y Avtaeva
- Cardiology Research and Production Center, Moscow, Russian Federation
| | - S Kozlov
- Cardiology Research and Production Center, Moscow, Russian Federation
| | - D Nozadze
- Cardiology Research and Production Center, Moscow, Russian Federation
| | - Z Gabbasov
- Cardiology Research and Production Center, Moscow, Russian Federation
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Moreira MW, Rodrigues JJ, Carvalho FH, Al-Muhtadi J, Kozlov S, Rabêlo RA. Classification of risk areas using a bootstrap-aggregated ensemble approach for reducing Zika virus infection in pregnant women. Pattern Recognit Lett 2019. [DOI: 10.1016/j.patrec.2019.04.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kozlovskii S, Sintsova O, Kasheverov I, Korolkova Y, Mosharova I, Koshelev S, Yurchenko E, Kozlov S, Leychenko E. Venom of jellyfish Gonionemus Vertens contains components against various types of cellular receptors. Toxicon 2019. [DOI: 10.1016/j.toxicon.2018.11.368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Gladkikh I, Kalina R, Sinsova O, Kvetkina A, Peigneur S, Koshelev S, Kim N, Monastyrnaya M, Kozlov S, Tytgat J, Kozlovskaya E. New Kv, NAv, and ASIC channel toxins from the sea anemone Heteractis crispa. Toxicon 2019. [DOI: 10.1016/j.toxicon.2018.10.168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bratchenko I, Myakinin O, Sherendak V, Volkhin P, Khristoforova Y, Bratchenko L, Artemyev D, Moryatov A, Polschikova O, Machikhin A, Pozhar V, Kozlov S, Zakharov V. In vivo hyperspectral analysis of skin hemoglobin and melanin content for neoplasia detection. J-BPE 2018. [DOI: 10.18287/jbpe18.04.040301] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Nicosia A, Mikov A, Cammarata M, Colombo P, Andreev Y, Kozlov S, Cuttitta A. The Anemonia viridis Venom: Coupling Biochemical Purification and RNA-Seq for Translational Research. Mar Drugs 2018; 16:E407. [PMID: 30366463 PMCID: PMC6266578 DOI: 10.3390/md16110407] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 10/20/2018] [Accepted: 10/24/2018] [Indexed: 11/16/2022] Open
Abstract
Blue biotechnologies implement marine bio-resources for addressing practical concerns. The isolation of biologically active molecules from marine animals is one of the main ways this field develops. Strikingly, cnidaria are considered as sustainable resources for this purpose, as they possess unique cells for attack and protection, producing an articulated cocktail of bioactive substances. The Mediterranean sea anemone Anemonia viridis has been studied extensively for years. In this short review, we summarize advances in bioprospecting of the A. viridis toxin arsenal. A. viridis RNA datasets and toxin data mining approaches are briefly described. Analysis reveals the major pool of neurotoxins of A. viridis, which are particularly active on sodium and potassium channels. This review therefore integrates progress in both RNA-Seq based and biochemical-based bioprospecting of A. viridis toxins for biotechnological exploitation.
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Affiliation(s)
- Aldo Nicosia
- National Research Council-Institute for the Study of Anthropogenic Impacts and Sustainability in the Marine Environment (IAS-CNR), Laboratory of Molecular Ecology and Biotechnology, Capo Granitola, Via del mare, Campobello di Mazara (TP), 91021 Sicily, Italy.
| | - Alexander Mikov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, RAS, GSP-7, ul. Miklukho-Maklaya, 16/10, 117997 Moscow, Russia.
| | - Matteo Cammarata
- Department of Earth and Marine Sciences, University of Palermo, 90100 Palermo, Italy.
| | - Paolo Colombo
- Istituto di Biomedicina e di Immunologia Molecolare, Consiglio Nazionale delle Ricerche, Via Ugo La Malfa 153, 90146 Palermo, Italy.
| | - Yaroslav Andreev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, RAS, GSP-7, ul. Miklukho-Maklaya, 16/10, 117997 Moscow, Russia.
- Institute of Molecular Medicine, Ministry of Healthcare of the Russian Federation, Sechenov First Moscow State Medical University, 119991 Moscow, Russia.
| | - Sergey Kozlov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, RAS, GSP-7, ul. Miklukho-Maklaya, 16/10, 117997 Moscow, Russia.
| | - Angela Cuttitta
- National Research Council-Institute for the Study of Anthropogenic Impacts and Sustainability in the Marine Environment (IAS-CNR), Laboratory of Molecular Ecology and Biotechnology, Capo Granitola, Via del mare, Campobello di Mazara (TP), 91021 Sicily, Italy.
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Melnikov I, Chumachenko P, Kozlov S, Majorova A, Saburova O, Portnaya T, Osidak M, Domogatsky S, Buryachkovskaya L, Gabbasov Z. Monomeric C-reactive protein and local inflammatory response in patients with stable coronary artery disease. Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kalina R, Gladkikh I, Dmitrenok P, Chernikov O, Koshelev S, Kvetkina A, Kozlov S, Kozlovskaya E, Monastyrnaya M. New APETx-like peptides from sea anemone Heteractis crispa modulate ASIC1a channels. Peptides 2018; 104:41-49. [PMID: 29684594 DOI: 10.1016/j.peptides.2018.04.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 04/06/2018] [Accepted: 04/18/2018] [Indexed: 02/07/2023]
Abstract
Sea anemones are an abundant source of various biologically active peptides. The hydrophobic 20% ethanol fraction of tropical sea anemone Heteractis crispa was shown to contain at least 159 peptide compounds including neurotoxins, proteinase and α-amylase inhibitors, as well as modulators of acid-sensing ion channels (ASICs). The three new peptides, π-AnmTX Hcr 1b-2, -3, and -4 (41 aa) (short names Hcr 1b-2, -3, -4), identified by a combination of reversed-phase liquid chromatography and mass spectrometry were found to belong to the class 1b sea anemone neurotoxins. The amino acid sequences of these peptides were determined by Edman degradation and tandem mass spectrometry. The percent of identity of Hcr 1b-2, -3, and -4 with well-known ASIC3 inhibitors Hcr 1b-1 from H. crispa and APETx2 from Anthopleura elegantissima is 95-78% and 46-49%, respectively. Electrophysiological experiments on homomeric ASIC channels expressed in Xenopus laevis oocytes establish that these peptides are the first inhibitors of ASIC1a derived from sea anemone venom. The major peptide, Hcr 1b-2, inhibited both rASIC1a (IC50 4.8 ± 0.3 μM; nH 0.92 ± 0.05) and rASIC3 (IC50 15.9 ± 1.1 μM; nH 1.0 ± 0.05). The maximum inhibition at saturating peptide concentrations reached 64% and 81%, respectively. In the model of acid-induced muscle pain Hcr 1b-2 was also shown to exhibit an antihyperalgesic effect, significantly reducing of the pain threshold of experimental animals.
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Affiliation(s)
- Rimma Kalina
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, FEB RAS, Vladivostok, Russia.
| | - Irina Gladkikh
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, FEB RAS, Vladivostok, Russia.
| | - Pavel Dmitrenok
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, FEB RAS, Vladivostok, Russia
| | - Oleg Chernikov
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, FEB RAS, Vladivostok, Russia
| | - Sergey Koshelev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, RAS, Moscow, Russia
| | - Aleksandra Kvetkina
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, FEB RAS, Vladivostok, Russia
| | - Sergey Kozlov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, RAS, Moscow, Russia
| | - Emma Kozlovskaya
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, FEB RAS, Vladivostok, Russia
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Gabbasov Z, Kozlov S, Melnikov I, Byazrova S, Saburova O, Prokofieva L, Caprnda M, Curilla E, Gaspar L, Rodrigo L, Kruzliak P, Smirnov V. Novel Biomarkers for Coronary Restenosis Occurrence After Drug-Eluting Stent Implantation in Patients With Diabetes Having Stable Coronary Artery Disease. Clin Appl Thromb Hemost 2018; 24:1308-1314. [PMID: 29716394 PMCID: PMC6714775 DOI: 10.1177/1076029618771752] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The purpose of the study was to assess whether the occurrence of restenosis is associated with CD45+ platelet count and neutrophil to lymphocyte ratio in patients with type 2 diabetes mellitus (DM) after drug-eluting stent (DES) implantation for stable coronary artery disease (CAD). The study comprised 126 patients, including 55 patients with type 2 DM and stable CAD who underwent elective coronary artery stenting with DES and follow-up angiography within 6 to 12 months. Blood samples were collected from each patient on the morning of the coronary angiography procedure. The variables related to in-stent restenosis were selected by logistic regression analysis. The logistic regression analysis showed that 2 inflammatory factors, CD45+ platelet count (odds ratio [OR] = 4.51, 95% confidence interval [CI]: 1.50-13.50, P = .007) and neutrophil to lymphocyte ratio (OR = 3.09, 95% CI: 1.05-9.10, P = .04), were significantly associated with the risk of in-stent restenosis after stenting with DES in patients with stable CAD and type 2 DM. A receiver operator characteristic curve analysis indicated that the area under the curve was 0.83% (0.05%; P < .001), which showed that the logistic model had good predictive accuracy (based on CD45+ platelet count and neutrophil to lymphocyte ratio) for the risk of in-stent restenosis development in DES in patients with CAD and type 2 DM. Two novel biomarkers of restenosis, CD45+ platelet count and neutrophil to lymphocyte ratio, may be effectively used to predict in-stent restenosis after DES implantation in patients with CAD and type 2 DM.
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Affiliation(s)
- Zufar Gabbasov
- 1 Russian Cardiology Research and Production Complex, Moscow, Russian Federation
| | - Sergey Kozlov
- 1 Russian Cardiology Research and Production Complex, Moscow, Russian Federation
| | - Ivan Melnikov
- 1 Russian Cardiology Research and Production Complex, Moscow, Russian Federation.,2 Institute of Biomedical Problems of Russian Academy of Sciences, Moscow, Russian Federation
| | - Svetlana Byazrova
- 1 Russian Cardiology Research and Production Complex, Moscow, Russian Federation
| | - Olga Saburova
- 1 Russian Cardiology Research and Production Complex, Moscow, Russian Federation
| | - Lyudmila Prokofieva
- 1 Russian Cardiology Research and Production Complex, Moscow, Russian Federation
| | - Martin Caprnda
- 3 1st Department of Internal Medicine, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Eduard Curilla
- 4 Department of Cardiology, East Slovak Institute of Cardiovascular Diseases, Kosice, Slovakia
| | - Ludovit Gaspar
- 3 1st Department of Internal Medicine, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Luis Rodrigo
- 5 Faculty of Medicne, University of Oviedo, Central University Hospital of Asturias (HUCA), Oviedo, Spain
| | - Peter Kruzliak
- 6 Department of Internal Medicine, Brothers of Mercy Hospital, Brno, Czech Republic.,7 2nd Department of Surgery, Faculty of Medicine, Masaryk University and St. Anne's University Hospital, Brno, Czech Republic
| | - Vladimir Smirnov
- 1 Russian Cardiology Research and Production Complex, Moscow, Russian Federation
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Bratchenko I, Sherendak V, Myakinin O, Artemyev D, Moryatov A, Borisova E, Avramov L, Zherdeva L, Orlov A, Kozlov S, Zakharov V. In vivo hyperspectral imaging of skin malignant and benign tumors in visible spectrum. JBPE 2018. [DOI: 10.18287/jbpe17.04.010301] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Kozlov S, Kchamchieva L, Tripoten M, Melnikov I, Balakchonova T. Effect of intensive statin therapy on carotid plaque echogenicity in patients with nonobstructive asymptomatic carotid stenosis. Atherosclerosis 2017. [DOI: 10.1016/j.atherosclerosis.2017.06.467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Melnikov I, Gabbasov Z, Kozlov S, Byazrova S, Saburova O. Assessment of novel biomarkers for restenosis occurrence after drug-eluting stent implantation in patients with stable coronary artery disease and type 2 diabetes mellitus. Atherosclerosis 2017. [DOI: 10.1016/j.atherosclerosis.2017.06.390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Shamina L, Bratchenko I, Artemyev D, Myakinin O, Moryatov A, Kaganov O, Orlov A, Kozlov S, Zakharov V. Raman and autofluorescence analysis of human body fluids from patients with malignant tumors. JBPE 2017. [DOI: 10.18287/jbpe17.03.020308] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Gabbasov Z, Kozlov S, Byazrova S, Saburova O, Melnikov I, Caprnda M, Curilla E, Gaspar L, Kruzliak P, Smirnov V. Blood level of CD45+ platelets and development of restenosis after drug-eluting stent implantation in patients with stable coronary artery disease. Wien Klin Wochenschr 2016; 128:898-905. [PMID: 27637207 DOI: 10.1007/s00508-016-1074-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 08/05/2016] [Indexed: 10/21/2022]
Abstract
OBJECTIVE The aim of this study was to assess CD45-positive platelets (CD45+ platelets) involvement in restenosis development after drug-eluting stent (DES) implantation in patients with stable coronary artery disease (CAD). METHODS The study comprised 126 male and female patients with stable angina pectoris, who underwent elective coronary stenting with DES and follow-up angiography within 6-12 months. The patients were assigned to the group with restenosis (n = 53) or group without restenosis (n = 73) according to the follow-up angiograms. In both groups we compared the level in blood of CD45+ platelets, the clinical, laboratory and angiographic variables, which may affect the development of restenosis. We have also constructed a logit regression model for prognosis of restenosis occurrence after DES implantation. RESULTS The blood count of CD45+ platelets was higher in patients with restenosis than in patients without: 0.82 % (0.58; 1.12) vs. 0.34 % (0.20; 0.68), p < 0.001, data are expressed as median (lower quartile; upper quartile). By binary comparisons of more than 35 different clinical, laboratory and angiographic variables we identified 8 significant risk factors for the development of stent restenosis after DES. In order to define the risk of the development of restenosis, we have built a logit regression model. The resulting logit regression equation included the level of CD45+ platelets, the neutrophil to lymphocyte ratio (NLR), small diameter arteries stenting and the number of simultaneously implanted stents in one patient. Receiver operating characteristic (ROC) curve analysis has demonstrated the high prognostic value of the resulting logit regression equation with an area under the curve (AUC) of 0.91 % (p < 0.001). CONCLUSIONS The acquired data indicate the presence of a close relationship between circulating CD45+ platelets and restenosis development after DES implantation in patients with stable CAD.
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Affiliation(s)
- Zufar Gabbasov
- Laboratory of Stem Cells, Institute of Experimental Cardiology, Cardiology Research Center, 3rd Cherepkovskaya Street 15A, 121552, Moscow, Russia.
| | - Sergey Kozlov
- Laboratory of Stem Cells, Institute of Experimental Cardiology, Cardiology Research Center, 3rd Cherepkovskaya Street 15A, 121552, Moscow, Russia
| | - Svetlana Byazrova
- Laboratory of Stem Cells, Institute of Experimental Cardiology, Cardiology Research Center, 3rd Cherepkovskaya Street 15A, 121552, Moscow, Russia
| | - Olga Saburova
- Laboratory of Stem Cells, Institute of Experimental Cardiology, Cardiology Research Center, 3rd Cherepkovskaya Street 15A, 121552, Moscow, Russia
| | - Ivan Melnikov
- Laboratory of Stem Cells, Institute of Experimental Cardiology, Cardiology Research Center, 3rd Cherepkovskaya Street 15A, 121552, Moscow, Russia
| | - Martin Caprnda
- Comenius University and University Hospital, Mickiewiczova 13, 81369, Bratislava, Slovakia
| | - Eduard Curilla
- Department of Cardiology, East Slovak Institute of Cardiovascular Diseases, Kosice, Slovakia
| | - Ludovit Gaspar
- Comenius University and University Hospital, Mickiewiczova 13, 81369, Bratislava, Slovakia.
| | - Peter Kruzliak
- Department of Chemical Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences, Palackeho 1946/1, 61242, Brno, Czech Republic. .,Masaryk University, Brno, Czech Republic.
| | - Vladimir Smirnov
- Laboratory of Stem Cells, Institute of Experimental Cardiology, Cardiology Research Center, 3rd Cherepkovskaya Street 15A, 121552, Moscow, Russia
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Gabbasov Z, Kozlov S, Melnikov I, Byazrova S, Saburova O. Blood level of CD45+ platelets and development of restenosis after drug-eluting stent implantation in patients with coronary artery disease. Atherosclerosis 2016. [DOI: 10.1016/j.atherosclerosis.2016.07.228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kozlov S, Gabbasov Z, Byazrova S, Saburova O, Masenko V. Serum levels of soluble receptor for advanced end products are associated with restenosis occurrence in patients with diabetes mellitus after drug-eluting stent implantation. Atherosclerosis 2016. [DOI: 10.1016/j.atherosclerosis.2016.07.697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kozlov S, Khamchieva L, Balakhonova T. Effect of statin therapy on the progression of asymptomatic carotid stenosis. Atherosclerosis 2015. [DOI: 10.1016/j.atherosclerosis.2015.04.982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Byazrova S, Kozlov S, Gabbasov Z, Kukharchuk V, Masenko V. Serum levels of soluble receptor for advanced glycation end products are associated with restenosis after drug-eluting stent implantation for stable angina pectoris. Atherosclerosis 2015. [DOI: 10.1016/j.atherosclerosis.2015.04.1012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Khristoforova Y, Bratchenko I, Artemyev D, Myakinin O, Kozlov S, Moryatov A, Zakharov V. Method of autofluorescence diagnostics of skin neoplasms in the near infrared region. JBPE 2015. [DOI: 10.18287/jbpe-2015-1-3-186] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Bratchenko I, Artemyev D, Myakinin O, Vrakova M, Shpuntenko K, Moryatov A, Kozlov S, Zakharov V. Malignant melanoma and basal cell carcinoma detection with 457 nm laser-induced fluorescence. JBPE 2015. [DOI: 10.18287/jbpe-2015-1-3-180] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Abstract
Polypeptide toxins are the main constituents of natural venoms. Considerable progress in the study of these molecules has resulted in the determination of a large number of structurally related sequences. To classify newly discovered molecules, a rational nomenclature for naming peptide toxins was developed, which takes into account toxin biological activity, the species name, and structural peculiarities of the polypeptide. Herein, we suggest modifications to this nomenclature for cysteine-rich polypeptide toxins from sea anemones and describe 11 novel polypeptide structures deduced after common database revision.
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Affiliation(s)
- Sergey Kozlov
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul Miklukho-Maklaya 16/10, 117997 Moscow, Russia.
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Kozlov S, Grishin E. The mining of toxin-like polypeptides from EST database by single residue distribution analysis. BMC Genomics 2011; 12:88. [PMID: 21281459 PMCID: PMC3040730 DOI: 10.1186/1471-2164-12-88] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2010] [Accepted: 01/31/2011] [Indexed: 11/20/2022] Open
Abstract
Background Novel high throughput sequencing technologies require permanent development of bioinformatics data processing methods. Among them, rapid and reliable identification of encoded proteins plays a pivotal role. To search for particular protein families, the amino acid sequence motifs suitable for selective screening of nucleotide sequence databases may be used. In this work, we suggest a novel method for simplified representation of protein amino acid sequences named Single Residue Distribution Analysis, which is applicable both for homology search and database screening. Results Using the procedure developed, a search for amino acid sequence motifs in sea anemone polypeptides was performed, and 14 different motifs with broad and low specificity were discriminated. The adequacy of motifs for mining toxin-like sequences was confirmed by their ability to identify 100% toxin-like anemone polypeptides in the reference polypeptide database. The employment of novel motifs for the search of polypeptide toxins in Anemonia viridis EST dataset allowed us to identify 89 putative toxin precursors. The translated and modified ESTs were scanned using a special algorithm. In addition to direct comparison with the motifs developed, the putative signal peptides were predicted and homology with known structures was examined. Conclusions The suggested method may be used to retrieve structures of interest from the EST databases using simple amino acid sequence motifs as templates. The efficiency of the procedure for directed search of polypeptides is higher than that of most currently used methods. Analysis of 39939 ESTs of sea anemone Anemonia viridis resulted in identification of five protein precursors of earlier described toxins, discovery of 43 novel polypeptide toxins, and prediction of 39 putative polypeptide toxin sequences. In addition, two precursors of novel peptides presumably displaying neuronal function were disclosed.
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Affiliation(s)
- Sergey Kozlov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, 117997 Moscow, Russia
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Gabbasov Z, Kozlov S, Saburova O, Imaeva A, Vasilieva O, Domogatsky S, Kucharchuk V. MS139 IN-STENT RESTENOSIS IS ACCOMPANIED BY ELEVATION OF CIRCULATING EOSINOPHILS. ATHEROSCLEROSIS SUPP 2010. [DOI: 10.1016/s1567-5688(10)70640-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Fang ZM, Tse RV, Marjoniemi VM, Kozlov S, Lavin MF, Chen H, Kearsley JH, Graham PH, Clarke RA. Radioresistant malignant myoepithelioma of the breast with high level of ataxia telangiectasia mutated protein. J Med Imaging Radiat Oncol 2009; 53:234-9. [DOI: 10.1111/j.1754-9485.2009.02053.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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