RU2010119937A - Антитела против tenb2, сконструированные с цистеином, и конъюгаты антитело-лекарственное средство - Google Patents
Антитела против tenb2, сконструированные с цистеином, и конъюгаты антитело-лекарственное средство Download PDFInfo
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- RU2010119937A RU2010119937A RU2010119937/10A RU2010119937A RU2010119937A RU 2010119937 A RU2010119937 A RU 2010119937A RU 2010119937/10 A RU2010119937/10 A RU 2010119937/10A RU 2010119937 A RU2010119937 A RU 2010119937A RU 2010119937 A RU2010119937 A RU 2010119937A
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- antibody
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- tenb2
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- RZDVMAVFLQTGSR-YUNBIBRNSA-N CC[C@H](C)[C@@H]([C@@H](CC(N(CCC1)[C@@H]1/C(/[C@@H](C)C(N[C@@H](Cc1ccccc1)C(O)=O)=O)=[O]/C)=O)OC)N(C)C([C@H](C(C)C)NC([C@H](C(C)C)N(C)C)=O)=O Chemical compound CC[C@H](C)[C@@H]([C@@H](CC(N(CCC1)[C@@H]1/C(/[C@@H](C)C(N[C@@H](Cc1ccccc1)C(O)=O)=O)=[O]/C)=O)OC)N(C)C([C@H](C(C)C)NC([C@H](C(C)C)N(C)C)=O)=O RZDVMAVFLQTGSR-YUNBIBRNSA-N 0.000 description 1
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Abstract
1. Антитело против TENB2, сконструированное с цистеином, содержащее одну или несколько свободных аминокислот цистеина и последовательность, выбранную из: ! Последовательность вблизи мутации Cys Последовательная нумерация Нумерация по Кабату Нумерация Eu Seq I.D. DVQLCESGPG Q5C Q5C 8 LSLTCCVSGYS A23C A23C 9 LSSVTCADTAV A88C A84C 10 TLVTVCSASTK S119C S112C 11 VTVSSCSTKGP A121C A114C A118C 12 VSSASCKGPSV T123C T116C T120C 13 WYVDGCEVHNA V285C V278C V282C 14 TVAAPCVFIFP S114C S114C 19 ! 2. Антитело против TENB2, сконструированное с цистеином, по п.1, где данное антитело против TENB2, сконструированное с цистеином, связывает полипептид TENB2. ! 3. Антитело против TENB2, сконструированное с цистеином, по п.1 или 2, полученное способом, включающим замену в родительском антителе против TENB2 одного или нескольких аминокислотных остатков на цистеин. ! 4. Антитело против TENB2, сконструированное с цистеином, по п.1 или 2, в котором один или несколько свободных аминокислотных остатков цистеина расположены в легкой цепи. ! 5. Антитело против TENB2, сконструированное с цистеином, по п.4, содержащее одну или несколько последовательностей, выбранных из: ! Последовательность вблизи мутации Cys Последовательная нумерация Нумерация по Кабату Seq. I.D. SLSASCGDRVT V15C V15C 17 EIKRTCAAPSV V110C V110C 18 FIFPPCDEQLK S121C S121C 20 DEQLKCGTASV S127C S127C 21 VTEQDCKDSTY S168C S168C 22 GLSSPCTKSFN V205C V205C 23 ! 6. Антитело против TENB2, сконструированное с цистеином, по п.1 или 2, в котором один или несколько свободных аминокислотных остатков цистеина расположены в тяжелой цепи. ! 7. Антитело против TENB2, сконструированное с цистеином, по п.6, содержащее одну или несколько последовательностей, выбранных из: ! Последовательность вблизи мутации Cys Последовательная нумерация Нумерация по Кабату �
Claims (36)
1. Антитело против TENB2, сконструированное с цистеином, содержащее одну или несколько свободных аминокислот цистеина и последовательность, выбранную из:
2. Антитело против TENB2, сконструированное с цистеином, по п.1, где данное антитело против TENB2, сконструированное с цистеином, связывает полипептид TENB2.
3. Антитело против TENB2, сконструированное с цистеином, по п.1 или 2, полученное способом, включающим замену в родительском антителе против TENB2 одного или нескольких аминокислотных остатков на цистеин.
4. Антитело против TENB2, сконструированное с цистеином, по п.1 или 2, в котором один или несколько свободных аминокислотных остатков цистеина расположены в легкой цепи.
5. Антитело против TENB2, сконструированное с цистеином, по п.4, содержащее одну или несколько последовательностей, выбранных из:
6. Антитело против TENB2, сконструированное с цистеином, по п.1 или 2, в котором один или несколько свободных аминокислотных остатков цистеина расположены в тяжелой цепи.
7. Антитело против TENB2, сконструированное с цистеином, по п.6, содержащее одну или несколько последовательностей, выбранных из:
8. Антитело против TENB2, сконструированное с цистеином, по п.1 или 2, содержащее последовательность тяжелой цепи, содержащую:
MAVLGLLLCLVTFPSCVLSDVQLQESGPGLVKPSETLSLTCAVSGYSITSGYYWSWIRQPPGKGLEWMGFISYDGSNKYNPSLKNRITISRDTSKNQFSLKLSSVTAADTAVYYCARGLRRGDYSMDYWGQGTLVTVSSCSTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCDKTHTCPPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQYNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREPQVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGK SEQ ID NO: 3
и/или последовательность легкой цепи, содержащую:
MDFQVQIFSFLLISASVIMSRGDIQMTQSPSSLSASVGDRVTITCKASQNVVTAVAWYQQKPGKAPKLLIYSASNRHTGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQYSSYPFTFGGGTKVEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC SEQ ID NO: 2.
9. Антитело против TENB2, сконструированное с цистеином, по п.1 или 2, которое продуцируется в бактерии или в клетках CHO.
10. Антитело против TENB2, сконструированное с цистеином, по п.1 или 2, где антитело ковалентно связано с молекулой лекарственного средства ауристатин, в результате чего образован конъюгат антитело-лекарственное средство.
11. Конъюгат антитело-лекарственное средство по п.10, содержащий антитело (Ab) против TENB2, сконструированное с цистеином (Ab), и молекулу (D) лекарственного средства ауристатин, где антитело против TENB2, сконструированное с цистеином, связано с D посредством одной или нескольких свободных аминокислот цистеина с помощью линкерной молекулы (L); соединение имеет формулу I
где p равно 1, 3, 4, предпочтительно 2.
12. Соединение конъюгата антитело-лекарственное средство по п.11, где L имеет формулу
где A представляет собой элемент поперечной связи, ковалентно соединенный с тиолом цистеина антитела (Ab), сконструированного с цистеином;
a равно 0 или 1;
каждый W независимо представляет собой аминокислотную единицу;
w является целым числом от 0 до 12;
Y представляет собой спейсерную единицу, ковалентно связанную с молекулой лекарственного средства; и
y равно 0, 1 или 2.
13. Соединение конъюгата антитело-лекарственное средство по п.12, имеющее формулу
где PAB представляет собой парааминобензилкарбамоил и R17 является двухвалентным радикалом, выбранным из (CH2)r, C3-C8 карбоциклила, О-(CH2)r, арилена, (CH2)r-арилена, -арилен-(CH2)r-, (CH2)r-(C3-C8 карбоциклил), (C3-C8 карбоциклил)-(CH2)r, C3-C8 гетероциклила, (CH2)r-(C3-C8 гетероциклил), -(C3-C8 гетероциклил)-(CH2)r-, -(CH2)rC(О)NRb(CH2)r-, -(CH2CH2O)r-, -(CH2CH2O)r-CH2-, -(CH2)rC(О)NRb(CH2CH2O)r-, -(CH2)rC(О)NRb(CH2CH2O)r-CH2-, -(CH2CH2O)rC(О)NRb(CH2CH2O)r-, -(CH2CH2O)rC(О)NRb(CH2CH2O)r-CH2- и -(CH2CH2O)rC(О)NRb(CH2)r-, где Rb представляет собой H, C1-C6 алкил, фенил или бензил и r независимо представляет собой целое число от 1 до 10.
14. Соединение конъюгата антитело-лекарственное средство по п.12, где Ww представляет собой валин-цитруллин.
16. Соединение конъюгата антитело-лекарственное средство по п.13 или 15, где R17 представляет собой (CH2)5 или (CH2)2.
18. Соединение конъюгата антитело-лекарственное средство по п.12, где L представляет собой SMCC или BMPEO.
20. Антитело против TENB2, сконструированное с цистеином, по п.1 или 2 или соединение конъюгата антитело-лекарственное средство по любому из пп.10-15, 17-19, где родительское антитело против TENB2 выбрано из моноклонального антитела, биспецифического антитела, химерного антитела, антитела человека и гуманизированного антитела.
21. Антитело против TENB2, сконструированное с цистеином, по п.1 или 2 или соединение конъюгата антитело-лекарственное средство по любому из пп.10-15, 17-19, где родительское антитело против TENB2 представляет собой фрагмент антитела, предпочтительно Fab-фрагмент.
22. Конъюгат антитело-лекарственное средство по п.10, где L представляет собой MC-val-cit-PAB или MC, SMCC, SPP или BMPEO.
24. Конъюгат антитело-лекарственное средство по п.23, где Ab содержит последовательность SEQ ID NO: 1 и/или SEQ ID NO: 2.
25. Фармацевтическая композиция, содержащая антитело против TENB2, сконструированное с цистеином, по п.1 или конъюгат антитело-лекарственное средство по п.10 и фармацевтически приемлемый разбавитель, носитель или наполнитель.
26. Фармацевтическая композиция, содержащая конъюгат антитело-лекарственное средство, по п.25, дополнительно содержащая терапевтически эффективное количество химиотерапевтического средства, выбранного из летрозола, оксалиплатина, доксетаксела, 5-фторурацила, лапатиниба, капецитабина, лейковорина, эрлотиниба, пертузумаба, бевацизумаба и гемцитабина.
27. Изделие, содержащее:
фармацевтическую композицию, содержащую конъюгат антитело-лекарственное средство, по п.25
контейнер и
листовку-вкладыш или этикетку, на которой указано, что соединение можно использовать для лечения рака, характеризующегося сверхэкспрессией полипептида TENB2, где рак предпочтительно выбран из рака яичников, рака предстательной железы, рака мочевыводящих путей, рака поджелудочной железы, рака легкого, рака молочной железы или рака толстой кишки.
28. Способ определения присутствия белка TENB2 в образце, в котором подозревают наличие указанного белка, включающий воздействие на указанный образец антителом против TENB2, сконструированным с цистеином, по п.1 и определение связывания указанного антитела с указанным белком TENB2 в указанном образце, где связывание антитела с указанным белком указывает на наличие указанного белка в указанном образце, где указанное антитело необязательно ковалентно связано с меткой, выбранной из флуоресцентного красителя, радиоизотопа, биотина или металлкомплексообразующего лиганда.
29. Способ по п.28, где указанный образец содержит клетку, в которой подозревают экспрессию указанного белка TENB2, где указанная клетка предпочтительно является раковой клеткой предстательной железы, яичника, молочной железы, легкого или поджелудочной железы.
30. Анализ для выявления раковых клеток, включающий:
(а) воздействие на клетки соединением конъюгата антитело-лекарственное средство по п.10 и
(b) определение степени связывания соединения конъюгата антитело-лекарственное средство с клетками,
где предпочтительно клетки представляют собой клетки опухоли предстательной железы, поджелудочной железы, легких, молочной железы, толстой кишки или яичников.
31. Способ ингибирования клеточной пролиферации, включающий обработку клеток опухоли млекопитающего в среде клеточной культуры конъюгатом антитело-лекарственное средство по п.10, посредством чего ингибируется пролиферация опухолевых клеток, где клетки опухоли млекопитающего предпочтительно представляют собой клетки опухоли яичников.
32. Способ лечения рака у пациента, включающий введение пациенту антитела против TENB2, сконструированного с цистеином, по п.10, где предпочтительно рак выбран из группы, состоящей из рака предстательной железы, рака мочевыводящих путей, рака поджелудочной железы, рака легкого, рака молочной железы, рака толстой кишки и рака яичников.
33. Способ по п.32, дополнительно включающий введение пациенту химиотерапевтического средства, где химиотерапевтическое средство выбрано из летрозола, цисплатина, карбоплатина, таксола, паклитаксела, оксалиплатина, доксетаксела, 5-фторурацила, лейковорина, эрлотиниба, пертузумаба, бевацизумаба, лапатиниба и гемцитабина.
34. Способ получения соединения конъюгата антитело-лекарственное средство, содержащего антитело (Ab) против TENB2, сконструированное с цистеином, по п.1 и молекулу (D) лекарственного средства ауристатин, где антитело, сконструированное с цистеином, соединено с D посредством одной или нескольких сконструированных аминокислот цистеина с помощью линкерной молекулы (L); соединение, имеющее формулу I
где p равно 1, 2, 3, или 4; где способ включает стадии:
(а) взаимодействия сконструированной цистеиновой группы в антителе, сконструированном с цистеином, с линкерным реагентом с образованием промежуточного соединения антитело-линкер Ab-L; и
(b) взаимодействия Ab-L с активированной молекулой D лекарственного средства, в результате чего образуется конъюгат антитело-лекарственное средство;
или включает стадии:
(с) взаимодействия нуклеофильной группы молекулы лекарственного средства с линкерным реагентом с образованием промежуточного соединения лекарственное средство-линкер D-L и
(d) взаимодействия D-L со сконструированной цистеиновой группой в антителе, сконструированном с цистеином, в результате чего образуется конъюгат антитело-лекарственное средство,
где способ необязательно включает стадию экспрессии антитела, сконструированного с цистеином, в клетках яичников китайского хомячка (CHO).
35. Способ по п.34, дополнительно включающий стадию обработки экспрессированного антитела, сконструированного с цистеином, восстановителем, где восстановитель предпочтительно выбран из TCEP и DTT.
36. Способ по п.35, дополнительно включающий стадию обработки экспрессированного антитела, сконструированного с цистеином, окислителем после обработки восстановителем, где окислитель предпочтительно выбран из сульфата меди, дегидроаскорбиновой кислоты и воздуха.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2582259C2 (ru) * | 2012-02-24 | 2016-04-20 | Алтеоген Инк. | Модифицированные антитела, с которыми связан мотив, включающий остаток цистеина, конъюгаты этих модифицированных антител с лекарственными веществами и способ их получения |
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