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100 _a20170906a2017 k y0engy50 ba
101 0 _aeng
102 _aNL
135 _adrnn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aSpheroids of HER2-Positive Breast Adenocarcinoma for Studying Anticancer Immunotoxins In Vitro
_fI. V. Balalaeva [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: p. 43 (32 tit.)]
330 _aTumor response to therapeutic treatment is largely determined by its heterogeneity and the presence of intercellular junctions, hindering the penetration of large molecules deep into the three-dimensional structure of the tumor. In that context, 3D in vitro tumor models such as cancer cell spheroids are becoming increasingly popular. We obtained spheroids of human breast adenocarcinoma SKBR-3 overexpressing the HER2 cancer marker. The toxicity of HER2-targeted immunotoxin 4D5scFv-PE40 against spheroids was shown to be several orders of magnitude lower compared to a monolayer cell culture. The significant difference in the severity of the immunotoxin effect can be explained by the fact that it ineffectively penetrates the spheroid and predominantly influences the cells of the outer layers. The resulting tumor spheroid model can be used in development of drugs for targeted therapy as well as to study ways to improve the efficiency of anticancer agents by targeting cell-cell contacts.
461 _tActa Naturae
463 _tVol. 9, №1 (32)
_v[P. 38-43]
_d2017
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aопухоли
610 1 _aсфероиды
610 1 _a3D-модели
610 1 _aсфероиды
610 1 _aсоединения
701 1 _aBalalaeva
_bI. V.
_gIrina Vladimirovna
701 1 _aSokolova
_bE. A.
_gEvgeniya Anatoljevna
701 1 _aPuzhikhina
_bA. D.
_gAlena Dmitrievna
701 1 _aBrilkina
_bA. A.
_gAnna Aleksandrovna
701 1 _aDeev
_bS. M.
_cbiologist
_cthe expert of Tomsk Polytechnic University, doctor of biological Sciences
_gSergey Mikhaylovich
_2stltpush
_3(RuTPU)RU\TPU\pers\39299
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bФизико-технический институт (ФТИ)
_bЛаборатория радиационного контроля № 31 (Лаборатория РК № 31)
_h6472
_2stltpush
_3(RuTPU)RU\TPU\col\19161
801 2 _aRU
_b63413507
_c20170906
_gRCR
856 4 _uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5406658/
942 _cCF