Research output: Contribution to journal › Article › peer-review
Immunogenicity of recombinant analog of antitumor protein lactaptin. / Tkachenko, A. V.; Troitskaya, O. S.; Semenov, D. V. et al.
In: Molecular Biology, Vol. 51, No. 5, 01.09.2017, p. 687-694.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Immunogenicity of recombinant analog of antitumor protein lactaptin
AU - Tkachenko, A. V.
AU - Troitskaya, O. S.
AU - Semenov, D. V.
AU - Dmitrienko, E. V.
AU - Kuligina, E. V.
AU - Richter, V. A.
AU - Koval, O. A.
PY - 2017/9/1
Y1 - 2017/9/1
N2 - Therapeutic monoclonal antibodies and recombinant proteins including cytokines are commonly used in the treatment of cancer and inflammatory diseases. In most cases, these protein-based drugs exhibit a high therapeutic efficacy, which is unfortunately frequently associated with a variety of side effects. We have investigated the in vitro and in vivo immunogenicity of recombinant antitumor protein lactaptin (RL2). Based on the qRT-PCR analysis, we have shown that, in MDA-MB-231 human breast adenocarcinoma cells, RL2 suppresses the NF-kB signaling cascade that regulates the reactions of innate immunity. RL2 inhibits the expression of the CXCL1 protein and apoptosis inhibitor A20 and enhances expression of IkB, NF-kB repressor. The ELISA method has been used to evaluate the antibody titer in the blood of mice, which received single and triple intravenous or intraperitoneal injections of RL2. The multiplex immunoassay of 23 cytokines in the mice blood has shown that the RL2 injections lead to a slight increase in the levels of systemic pro-inflammatory cytokine interleukin-5 (IL-5) and keratinocyte chemoattractant (KC), a homologue of human macrophage inflammatory protein-1 (MIP-1). These observations indicate the low immunogenicity of the recombinant lactaptin analog, which can be considered to be a potential molecular drug candidate for further clinical development.
AB - Therapeutic monoclonal antibodies and recombinant proteins including cytokines are commonly used in the treatment of cancer and inflammatory diseases. In most cases, these protein-based drugs exhibit a high therapeutic efficacy, which is unfortunately frequently associated with a variety of side effects. We have investigated the in vitro and in vivo immunogenicity of recombinant antitumor protein lactaptin (RL2). Based on the qRT-PCR analysis, we have shown that, in MDA-MB-231 human breast adenocarcinoma cells, RL2 suppresses the NF-kB signaling cascade that regulates the reactions of innate immunity. RL2 inhibits the expression of the CXCL1 protein and apoptosis inhibitor A20 and enhances expression of IkB, NF-kB repressor. The ELISA method has been used to evaluate the antibody titer in the blood of mice, which received single and triple intravenous or intraperitoneal injections of RL2. The multiplex immunoassay of 23 cytokines in the mice blood has shown that the RL2 injections lead to a slight increase in the levels of systemic pro-inflammatory cytokine interleukin-5 (IL-5) and keratinocyte chemoattractant (KC), a homologue of human macrophage inflammatory protein-1 (MIP-1). These observations indicate the low immunogenicity of the recombinant lactaptin analog, which can be considered to be a potential molecular drug candidate for further clinical development.
KW - cytokines
KW - immune response
KW - lactaptin
KW - multiplex analysis
KW - neutralizing antibody
KW - NF-kB
KW - therapeutic proteins
UR - http://www.scopus.com/inward/record.url?scp=85031432494&partnerID=8YFLogxK
U2 - 10.1134/S0026893317050193
DO - 10.1134/S0026893317050193
M3 - Article
AN - SCOPUS:85031432494
VL - 51
SP - 687
EP - 694
JO - Molecular Biology
JF - Molecular Biology
SN - 0026-8933
IS - 5
ER -
ID: 9892149