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Multivalentní glykokonjugáty ve studiu interakce lektinových receptorů NK/NKT buněk
Vannucci, Luca ; Pospíšil, Miloslav ; Rossmann, Pavel ; Chernyavskiy, Oleksandr ; Kubínová, Lucie ; Křen, Vladimír ; Luptovcová, Martina ; Svoboda, Jan ; Kuldová, Markéta ; Bezouška, Karel ; Fišerová, Anna
The events following the administration of GN8 in vitro, in vivo and ex vivo, lead to increased expression of CD69. The CD69-dependent IFNg production is modulated by co-activation of NKG2D and Ly49 receptors. Glycodendrimers can assist the dissection of activation network of NK/NKT cell lectin-like receptors in rat and murine models
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The role of A2A adenosine receptor in NK cell-mediated cytotoxicity
Kuldová, Markéta ; Svoboda, Jan ; Kovářů, H. ; Kovářů, F. ; Šplíchal, Igor ; Fišerová, Anna
Adenosine receptor, NK cell, immunity systém, cytotoxicity, Salmonella typhimurium, colorectal carcinoma, murine model, newborn pigs model
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Multivalentní glykomika v imunoterapii experimentálních nádorů
Vannucci, Luca ; Pospíšil, Miloslav ; Krist, Pavel ; Křen, Vladimír ; Huliková, Katarína ; Luptovcová, Martina ; Svoboda, Jan ; Kuldová, Markéta ; Bezouška, Karel ; Rossmann, Pavel ; Difato, Francesco ; Mosca, F. ; Fišerová, Anna
Lectin-like receptors can modulate the cytotoxic, regulatory and dendritic cell responses by their interactions. GN8 multivalent glycoconjugates are able to internalize inside and activate NKR-P1 positive cells inducing production of IFN-gamma and expression of CD69. The final effect is a modulation of anticancer immunity with reduction of cancer growth
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Interakce glykodendrimerů s nádorovým mikroprostředím
Pospíšil, Miloslav ; Vannucci, Luca ; Luptovcová, Martina ; Svoboda, Jan ; Huliková, Katarína ; Kuldová, Markéta ; Fišerová, Anna
During carcinogenesis and cancer development tissues undergo to important modifications with creation of a specific cancer microenvironment. Locally, the immune system is challenged by tumor-secreted active biological molecules (eg. cytokines, growth factors, NO, lactic acid) that can impair the activation of an effective anticancer response. The use of glycodendrimers targeting immune cells of innate immunity can rescue the activation and stimulate the immune responses, operating through lectin-like receptors.
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Úloha sacharidových struktur v NKR-P1 zprostředkované interakci efektorových a cílových buněk
Fišerová, Anna ; Svoboda, J. ; Kuldová, Markéta ; Pucová, Alexandra ; Bezouška, Karel ; Pesta, M. ; Vannucci, Luca ; Pospíšil, Miloslav
Masking oligosaccharide sequences can assist transformed cells to escape immune surveillance. N-acetyl-glucosamine coated dendrimers have binding affinity for NKR-P1 receptor and can also modify cancer cell glycosylation profile. Effects of treatment on immune cell subpopulations were analyzed in blood, lymphoid tissues and organs, and inside tumor in B16F10 melanoma bearing mice. Treatment enhanced tumor cell immunogenicity, and induced maturation,differentiation and homing of cytotoxic cells to tumor microenvironment.
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