4 research outputs found
ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ in silico Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΡ ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄Π½ΡΡ 2β-{[(e)-Π°Π½Π΄ΡΠΎΡΡ-5-Π΅Π½-17-ΠΈΠ»ΠΈΠ΄Π΅Π½]-ΠΌΠ΅ΡΠΈΠ»}ΠΎΠΊΡΠ°Π·ΠΎΠ»ΠΈΠ½ΠΎΠ² Ρ Π°Π½Π΄ΡΠΎΠ³Π΅Π½ΠΎΠ²ΡΠΌ ΡΠ΅ΡΠ΅ΠΏΡΠΎΡΠΎΠΌ
The ability of novel oxazolinyl derivatives of pregna-5,17(20)-diene to interact with the androgen receptor (AR) was investigated using molecular modelling methods. Six new derivatives differed in oxazolinyl radicals in 17 position were used. It was shown that all compounds were able to docked in the ligand-binding domain of AR only when the AR helix-12 was removed. It is suggested that these compounds have antagonistic properties. Results of docking and simulation of molecular dynamics with estimation of binding energy allow to predict that two compounds can be effective AR antagonists.ΠΠ΅ΡΠΎΠ΄Π°ΠΌΠΈ ΠΌΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½ΠΎΠ³ΠΎ ΠΌΠΎΠ΄Π΅Π»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΎΡΠ΅Π½Π΅Π½Π° ΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΡ Π½ΠΎΠ²ΡΡ
Π°Π·ΠΎΡΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΡ
ΡΡΠ΅ΡΠΎΠΈΠ΄Π½ΡΡ
ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄Π½ΡΡ
2β-{[(E)-Π°Π½Π΄ΡΠΎΡΡ-5-Π΅Π½-17-ΠΈΠ»ΠΈΠ΄Π΅Π½]-ΠΌΠ΅ΡΠΈΠ»}ΠΎΠΊΡΠ°Π·ΠΎΠ»ΠΈΠ½ΠΎΠ² Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΎΠ²Π°ΡΡ Ρ Π°Π½Π΄ΡΠΎΠ³Π΅Π½Π½ΡΠΌ ΡΠ΅ΡΠ΅ΠΏΡΠΎΡΠΎΠΌ. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Ρ 6 ΠΎΠΊΡΠ°Π·ΠΎΠ»ΠΈΠ½ΠΎΠ²ΡΡ
ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄Π½ΡΡ
17(20)Π-ΠΏΡΠ΅Π³Π½Π°-5,17(20)-Π΄ΠΈΠ΅Π½Π°, ΡΠ°Π·Π»ΠΈΡΠ°ΡΡΠΈΡ
ΡΡ ΡΡΡΡΠΊΡΡΡΠΎΠΉ Π³Π΅ΡΠ΅ΡΠΎΡΠΈΠΊΠ»Π°. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ Π²ΡΠ΅ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΡ ΡΠΏΠΎΡΠΎΠ±Π½Ρ ΡΠ²ΡΠ·ΡΠ²Π°ΡΡΡΡ Ρ Π°Π½Π΄ΡΠΎΠ³Π΅Π½Π½ΡΠΌ ΡΠ΅ΡΠ΅ΠΏΡΠΎΡΠΎΠΌ ΡΠΎΠ»ΡΠΊΠΎ Π² ΡΠ»ΡΡΠ°Π΅, ΠΊΠΎΠ³Π΄Π° ΠΈΠ· ΡΡΡΡΠΊΡΡΡΡ ΡΠ΅ΡΠ΅ΠΏΡΠΎΡΠ° Π±ΡΠ»Π° ΡΠ΄Π°Π»Π΅Π½Π° 12 ΡΠΏΠΈΡΠ°Π»Ρ. ΠΡΠΎ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ ΠΏΡΠ΅Π΄ΠΏΠΎΠ»Π°Π³Π°ΡΡ, ΡΡΠΎ Π΄Π°Π½Π½ΡΠ΅ Π»ΠΈΠ³Π°Π½Π΄Ρ Π΄ΠΎΠ»ΠΆΠ½Ρ ΠΏΡΠΎΡΠ²Π»ΡΡΡ Π°Π½ΡΠ°Π³ΠΎΠ½ΠΈΡΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠ²ΠΎΠΉΡΡΠ²Π°. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ Π΄ΠΎΠΊΠΈΠ½Π³Π° ΠΈ ΠΌΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½ΠΎΠΉ Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠΈ Ρ ΠΎΡΠ΅Π½ΠΊΠΎΠΉ ΡΠ½Π΅ΡΠ³ΠΈΠΈ ΡΠ²ΡΠ·ΡΠ²Π°Π½ΠΈΡ Π»ΠΈΠ³Π°Π½Π΄ΠΎΠ² ΠΏΠΎΠ·Π²ΠΎΠ»ΠΈΠ»ΠΈ ΠΏΡΠ΅Π΄ΠΏΠΎΠ»ΠΎΠΆΠΈΡΡ, ΡΡΠΎ Π΄Π²Π° ΠΈΠ· ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Π½ΡΡ
ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ ΠΌΠΎΠ³ΡΡ Π±ΡΡΡ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΡΠΌΠΈ Π°Π½ΡΠ°Π³ΠΎΠ½ΠΈΡΡΠ°ΠΌΠΈ Π°Π½Π΄ΡΠΎΠ³Π΅Π½Π½ΠΎΠ³ΠΎ ΡΠ΅ΡΠ΅ΠΏΡΠΎΡΠ°
ΠΠ»ΠΈΡΠ½ΠΈΠ΅ ΡΠ²ΡΠ·ΡΠ²Π°Π½ΠΈΡ Π³Π΅Π»Π΄Π°Π½Π°ΠΌΠΈΡΠΈΠ½Π° Ρ HSP90 Π½Π° ΡΠ°ΠΉΡ ΡΠΎΡΡΠΎΡΠΈΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ THR90
Prostate cancer is hormone-dependent and the androgen receptor (AR) is involved in its development. AR is a transcription factor that is activated by ligand binding, result in its translocation into the nucleus, where it initiates gene transcription. In an inactive state in cytoplasm AR exists as a complex with heat shock protein 90 (HSP90) and some other proteins. When the agonist binds, a conformational change in AR occurs, resulting in HSP90 and other chaperones dissociating. Recently it has been shown that for the dissociation of the HSP90-AR complex and the translocation of the latter into the nucleus, phosphorylation of the Thr-90 residue of the N-terminal domain of HSP90 is necessary. In this work, the effect of the HSP90 inhibitor, geldanamycin, interacting with the ATP-binding site, on the Thr90 phosphorylation site was investigated by molecular modeling methods. It has been shown that inhibitor binding slightly affects the size and mobility of cavity around Thr90. It is suggested that inhibitor binding to HSP90 does not result in changing the protein structure and does not influence on protein phosphorylation, and partially explains low effectiveness of such type of drugs in the therapy of prostate cancer.Π Π°ΠΊ ΠΏΡΠ΅Π΄ΡΡΠ°ΡΠ΅Π»ΡΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ (Π ΠΠ) ΡΠ²Π»ΡΠ΅ΡΡΡ Π³ΠΎΡΠΌΠΎΠ½-Π·Π°Π²ΠΈΡΠΈΠΌΡΠΌ, Π² Π΅Π³ΠΎ ΡΠ°Π·Π²ΠΈΡΠΈΠΈ Π°ΠΊΡΠΈΠ²Π½ΠΎ ΡΡΠ°ΡΡΠ²ΡΠ΅Ρ Π°Π½Π΄ΡΠΎΠ³Π΅Π½ΠΎΠ²ΡΠΉ ΡΠ΅ΡΠ΅ΠΏΡΠΎΡ (AR), Π²ΡΠΏΠΎΠ»Π½ΡΡΡΠΈΠΉ ΡΠΎΠ»Ρ ΡΠ°ΠΊΡΠΎΡΠ° ΡΡΠ°Π½ΡΠΊΡΠΈΠΏΡΠΈΠΈ. Π Π½Π΅Π°ΠΊΡΠΈΠ²Π½ΠΎΠΌ ΡΠΎΡΡΠΎΡΠ½ΠΈΠΈ Π² ΡΠΈΡΠΎΠ·ΠΎΠ»Π΅ AR Π½Π°Ρ
ΠΎΠ΄ΠΈΡΡΡ Π² ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ΅ Ρ Π±Π΅Π»ΠΊΠΎΠΌ ΡΠ΅ΠΏΠ»ΠΎΠ²ΠΎΠ³ΠΎ ΡΠΎΠΊΠ° HSP90 ΠΈ ΡΡΠ΄ΠΎΠΌ Π΄ΡΡΠ³ΠΈΡ
Π±Π΅Π»ΠΊΠΎΠ². ΠΠ·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΠ΅ Ρ Π°Π³ΠΎΠ½ΠΈΡΡΠΎΠΌ ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡ ΠΊ ΠΊΠΎΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠΎΠ½Π½ΡΠΌ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΡΠΌ Π² AR, Π² ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ΅ ΡΠ΅Π³ΠΎ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡ AR Ρ ΡΠ°ΠΏΠ΅ΡΠΎΠ½Π°ΠΌΠΈ ΡΠ°ΡΠΏΠ°Π΄Π°Π΅ΡΡΡ ΠΈ AR ΡΡΠ°Π½ΡΠΏΠΎΡΡΠΈΡΡΠ΅ΡΡΡ Π² ΡΠ΄ΡΠΎ. ΠΠ΅Π΄Π°Π²Π½ΠΎ Π±ΡΠ»ΠΎ ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΎ, ΡΡΠΎ Π΄Π»Ρ Π΄ΠΈΡΡΠΎΡΠΈΠ°ΡΠΈΠΈ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ° ΡΠ°ΠΏΠ΅ΡΠΎΠ½Π° HSP90 ΠΈ AR Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΠΎ ΡΠΎΡΡΠΎΡΠΈΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ ΠΎΡΡΠ°ΡΠΊΠ° Thr-90 N-ΠΊΠΎΠ½ΡΠ΅Π²ΠΎΠ³ΠΎ Π΄ΠΎΠΌΠ΅Π½Π° HSP90. Π Π΄Π°Π½Π½ΠΎΠΉ ΡΠ°Π±ΠΎΡΠ΅ ΠΌΠ΅ΡΠΎΠ΄Π°ΠΌΠΈ ΠΌΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½ΠΎΠ³ΠΎ ΠΌΠΎΠ΄Π΅Π»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΎ Π²Π»ΠΈΡΠ½ΠΈΠ΅ ΠΈΠ½Π³ΠΈΠ±ΠΈΡΠΎΡΠ° HSP90 Π³Π΅Π»Π΄Π°Π½Π°ΠΌΠΈΡΠΈΠ½Π°, Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΡΡΡΠ΅Π³ΠΎ Ρ ΠΠ’Π -ΡΠ²ΡΠ·ΡΠ²Π°ΡΡΠΈΠΌ ΡΠ°ΠΉΡΠΎΠΌ, Π½Π° ΡΠ°ΠΉΡ ΡΠΎΡΡΠΎΡΠΈΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ Thr90. ΠΡΠ»ΠΎ ΠΏΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ ΡΠ²ΡΠ·ΡΠ²Π°Π½ΠΈΠ΅ ΠΈΠ½Π³ΠΈΠ±ΠΈΡΠΎΡΠ° Π½Π΅ ΡΠΈΠ»ΡΠ½ΠΎ Π²Π»ΠΈΡΠ΅Ρ Π½Π° ΡΠ°Π·ΠΌΠ΅Ρ ΠΈ ΠΏΠΎΠ΄Π²ΠΈΠΆΠ½ΠΎΡΡΡ Π°ΠΌΠΈΠ½ΠΎΠΊΠΈΡΠ»ΠΎΡΠ½ΡΡ
ΠΎΡΡΠ°ΡΠΊΠΎΠ² ΠΏΠΎΠ»ΠΎΡΡΠΈ ΠΎΠΊΠΎΠ»ΠΎ Thr90. ΠΡΠ΅Π΄ΠΏΠΎΠ»Π°Π³Π°Π΅ΡΡΡ, ΡΡΠΎ ΡΠ²ΡΠ·ΡΠ²Π°Π½ΠΈΠ΅ ΠΈΠ½Π³ΠΈΠ±ΠΈΡΠΎΡΠ° Ρ HSP90 Π½Π΅ ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡ ΠΊ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΡ ΡΡΡΡΠΊΡΡΡΡ Π±Π΅Π»ΠΊΠ° ΠΈ Π½Π΅ ΠΌΠΎΠΆΠ΅Ρ Π²Π»ΠΈΡΡΡ Π½Π° Π΅Π³ΠΎ ΡΠΎΡΡΠΎΡΠΈΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅, ΡΡΠΎ ΠΎΡΡΠ°ΡΡΠΈ ΠΌΠΎΠΆΠ΅Ρ ΠΎΠ±ΡΡΡΠ½ΠΈΡΡ Π½Π΅Π²ΡΡΠΎΠΊΡΡ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΡΠ°ΠΊΠΎΠ³ΠΎ ΡΠΈΠΏΠ° ΠΏΡΠ΅ΠΏΠ°ΡΠ°ΡΠΎΠ² Π² Ρ
ΠΈΠΌΠΈΠΎΡΠ΅ΡΠ°ΠΏΠΈΠΈ Π ΠΠ