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Population dynamics in modeling tumor growth / V. A. Slepkov, V. G. Sukhovolsky, R. G. Khlebopros // Biophysics. - 2007. - Vol. 52, Is. 4. - P426-431, DOI 10.1134/S0006350907040136 . - ISSN 0006-3509
Кл.слова (ненормированные):
Angiogenesis -- Local cellular interaction -- Modeling -- Tumor growth
Аннотация: A new approach based on local interaction between cancer and tissue cells is applied to the problem of the onset and growth of solid tumors in homogeneous tissues and effects associated with dramatic changes in tumor growth after crossing the boundary between different tissues. The characteristic sizes and growth rates of spherical tumors, the points of the beginning and the end of spherical growth, and further development of complex structures from the spherical ones (rough interface between the tumor and the host tissue, elongate outgrowths, dendritic structures, and metastases) are inferred assuming that the reproduction rate of a population of cancer cells is a nonmonotonous function of their local concentration and thus of the local curvature of the tumor surface. The growth behavior changes dramatically when the tumor crosses a boundary between two tissues. В© 2007 Pleiades Publishing, Inc.

Scopus
Держатели документа:
Nikolaev Institute of Inorganic Chemistry, Siberian Division, Russian Academy of Sciences, Novosibirsk 630090, Russian Federation
International Center for Critical States Research, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, Akademgorodok 660036, Russian Federation
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, Akademgorodok 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Slepkov, V.A.; Sukhovolsky, V.G.; Khlebopros, R.G.

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Biotechnological wound dressings based on bacterial cellulose and degradable copolymer P(3HB/4HB) / T. G. Volova [et al.] // Int. J. Biol. Macromol. - 2019. - Vol. 131. - P230-240, DOI 10.1016/j.ijbiomac.2019.03.068. - Cited By :1 . - ISSN 0141-8130
Кл.слова (ненормированные):
Bacterial cellulose -- Composites -- Polyhydroxyalkanoates -- 3 hydroxybutyric acid 4 hydroxybutyric acid copolymer -- actovegin -- bacterial cellulose -- cellulose -- collagen type 1 -- copolymer -- cytokeratin 10 -- cytokeratin 14 -- solcoseryl -- unclassified drug -- angiogenesis -- animal cell -- animal experiment -- animal model -- animal tissue -- biochemical analysis -- biocompatibility -- burn -- cell growth -- controlled study -- cutaneous parameters -- differential scanning calorimetry -- drug release -- elemental analysis -- female -- fibroblast -- histopathology -- in vitro study -- in vivo study -- inflammation -- mechanics -- nonhuman -- rat -- Review -- wound healing -- wound planimetry -- X ray analysis
Аннотация: Hybrid wound dressings have been constructed using two biomaterials: bacterial cellulose (BC) and copolymer of 3-hydroxybutyric and 4-hydroxybutyric acids [P(3HB/4HB)] – a biodegradable polymer of microbial origin. Some of the experimental membranes were loaded with drugs promoting wound healing and epidermal cells differentiated from multipotent adipose-derived mesenchymal stem cells. A study has been carried out to investigate the structure and physical/mechanical properties of the membranes. The in vitro study showed that the most effective scaffolds for growing fibroblasts were composite BC/P(3HB/4HB) films loaded with actovegin. Two types of the experimental biotechnological wound dressings – BC/P(3HB/4HB)/actovegin and BC/P(3HB/4HB)/fibroblasts – were tested in vivo, on laboratory animals with model third-degree skin burns. Wound planimetry, histological examination, and biochemical and molecular methods of detecting factors of angiogenesis, inflammation, type I collagen, and keratin 10 and 14 were used to monitor wound healing. Experimental wound dressings promoted healing more effectively than VoskoPran – a commercial wound dressing. © 2019

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Держатели документа:
Siberian Federal University, 79 Svobodnyi Av., Krasnoyarsk, 660041, Russian Federation
Institute of Biophysics of Siberian Branch of Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
V.F. Voino-Yasenetsky Krasnoyarsk State Medical University, 1 Partizan Zheleznyak Street, Krasnoyarsk, 660022, Russian Federation

Доп.точки доступа:
Volova, T. G.; Shumilova, A. A.; Nikolaeva, E. D.; Kirichenko, A. K.; Shishatskaya, E. I.

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