RU2019134212A - Химерные антигенные рецепторы с mnd-промотором - Google Patents
Химерные антигенные рецепторы с mnd-промотором Download PDFInfo
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- RU2019134212A RU2019134212A RU2019134212A RU2019134212A RU2019134212A RU 2019134212 A RU2019134212 A RU 2019134212A RU 2019134212 A RU2019134212 A RU 2019134212A RU 2019134212 A RU2019134212 A RU 2019134212A RU 2019134212 A RU2019134212 A RU 2019134212A
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- Prior art keywords
- cells
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- signal
- lentiviral vector
- lentiviral
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- 230000000890 antigenic effect Effects 0.000 title claims 3
- 238000000034 method Methods 0.000 claims 14
- 210000004027 cell Anatomy 0.000 claims 12
- 108010076504 Protein Sorting Signals Proteins 0.000 claims 6
- 239000012642 immune effector Substances 0.000 claims 6
- 229940121354 immunomodulator Drugs 0.000 claims 6
- 108091033319 polynucleotide Proteins 0.000 claims 4
- 102000040430 polynucleotide Human genes 0.000 claims 4
- 239000002157 polynucleotide Substances 0.000 claims 4
- 229920001184 polypeptide Polymers 0.000 claims 4
- 230000001124 posttranscriptional effect Effects 0.000 claims 4
- 108090000765 processed proteins & peptides Proteins 0.000 claims 4
- 102000004196 processed proteins & peptides Human genes 0.000 claims 4
- 230000001105 regulatory effect Effects 0.000 claims 4
- 102100031573 Hematopoietic progenitor cell antigen CD34 Human genes 0.000 claims 3
- 101000777663 Homo sapiens Hematopoietic progenitor cell antigen CD34 Proteins 0.000 claims 3
- 230000008054 signal transmission Effects 0.000 claims 3
- 102000006942 B-Cell Maturation Antigen Human genes 0.000 claims 2
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- 241000713883 Myeloproliferative sarcoma virus Species 0.000 claims 2
- 241000555745 Sciuridae Species 0.000 claims 2
- 241000700605 Viruses Species 0.000 claims 2
- 108091093126 WHP Posttrascriptional Response Element Proteins 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 claims 2
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- 102000015685 human GM-CSF receptor-alpha subunit Human genes 0.000 claims 2
- 108010038879 human GM-CSF receptor-alpha subunit Proteins 0.000 claims 2
- 238000000338 in vitro Methods 0.000 claims 2
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- 101000932478 Homo sapiens Receptor-type tyrosine-protein kinase FLT3 Proteins 0.000 claims 1
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- 108010002386 Interleukin-3 Proteins 0.000 claims 1
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- 102100020718 Receptor-type tyrosine-protein kinase FLT3 Human genes 0.000 claims 1
- 108091027981 Response element Proteins 0.000 claims 1
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Claims (21)
1. Способ in vitro образования иммунных эффекторных клеток, которые экспрессируют химерный антигенный рецептор (CAR), предусматривающий
(a) введение в иммунные эффекторные клетки лентивирусного вектора, содержащего левый (5') лентивирусный LTR, который содержит гетерологичный промотор цитомегаловируса (CMV), сигнал упаковки Psi (Ψ), центральный полипуриновый тракт/ДНК-флэп (cPPT/FLAP), элемент rev-ответа (RRE); (3') лентивирусный самоинактивирующийся (SIN) LTR; синтетическую последовательность полиаденилирования и полинуклеотид, содержащий промотор (MND) с энхансером вируса миелопролиферативной саркомы, с удаленным участком отрицательного контроля, с сайтом связывания праймера, замещенным на последовательность из dl587rev, функционально связанный с нуклеиновой кислотой, кодирующей CAR, где CAR содержит одноцепочечный вариабельный фрагмент (scFv), который связывает антиген созревания В-клеток (BMCA), шарнирную область CD8α, трансмембранный домен CD8α, домен передачи костимулирующего сигнала CD137 и домен передачи первичного сигнала CD3ζ; и
(b) стимулирование клеток и индуцирование клеток для обеспечения их пролиферации посредством приведения клеток в контакт с антителами, которые связываются с CD3, и антителами, которые связываются с CD28; за счет чего обеспечивается образование иммунных эффекторных клеток, которые экспрессируют CAR.
2. Способ по п. 1, где scFv является человеческим, мышиным или гуманизированным.
3. Способ по п. 1, где лентивирусный вектор дополнительно содержит сигнальный пептид.
4. Способ по п. 3, где сигнальный пептид содержит сигнальный полипептид тяжелой цепи IgG1, сигнальный полипептид CD8α или сигнальный пептид альфа-субъединицы рецептора GM-CSF человека.
5. Способ по п. 1, где полинуклеотид, который кодирует CAR, содержит оптимизированную последовательность Козак.
6. Способ по п. 1, где лентивирусный вектор дополнительно содержит посттранскрипционный регуляторный элемент вируса гепатита В (HPRE) или посттранскрипционный регуляторный элемент вируса гепатита сурков (WPRE).
7. Способ по п. 1, где иммунные эффекторные клетки стимулируют и индуцируют к пролиферации до введения вектора.
8. Способ по п. 1, где иммунные эффекторные клетки содержат T-лимфоциты или NK-клетки.
9. Способ in vitro получения иммунной эффекторной клетки, предусматривающий
(a) выделение CD34+ клеток из выделенного костного мозга, пуповинной крови или мобилизованной периферической крови от субъекта; и
(b) введение лентивирусного вектора в выделенные CD34+ клетки;
где лентивирусный вектор содержит левый (5') лентивирусный LTR, который содержит гетерологичный промотор цитомегаловируса (CMV), сигнал упаковки Psi (Ψ), центральный полипуриновый тракт/ДНК-флэп (cPPT/FLAP), элемент rev-ответа (RRE); (3') лентивирусный самоинактивирующийся (SIN) LTR; синтетическую последовательность полиаденилирования и полинуклеотид, содержащий промотор (MND) с энхансером вируса миелопролиферативной саркомы, с удаленным участком отрицательного контроля, с сайтом связывания праймера, замещенным на последовательность из dl587rev, функционально связанный с нуклеиновой кислотой, кодирующей химерный антигенный рецептор (CAR),
где CAR содержит одноцепочечный вариабельный фрагмент (scFv), который связывает антиген созревания В-клеток (BMCA), шарнирную область CD8α, трансмембранный домен CD8α, домен передачи костимулирующего сигнала CD137 и домен передачи первичного сигнала CD3ζ.
10. Способ по п. 9, где scFv является человеческим, мышиным или гуманизированным.
11. Способ по п. 9, где лентивирусный вектор дополнительно содержит сигнальный пептид.
12. Способ по п. 11, где сигнальный пептид содержит сигнальный полипептид тяжелой цепи IgG1, сигнальный полипептид CD8α или сигнальный пептид альфа-субъединицы рецептора GM-CSF человека.
13. Способ по п. 9, где полинуклеотид, который кодирует CAR, содержит оптимизированную последовательность Козак.
14. Способ по п. 9, где лентивирусный вектор дополнительно содержит посттранскрипционный регуляторный элемент вируса гепатита В (HPRE) или посттранскрипционный регуляторный элемент вируса гепатита сурков (WPRE).
15. Способ по п. 9, где указанные CD34+ клетки предварительно стимулируют с помощью одного или более цитокинов, выбранных из группы, состоящей из лиганда FLT3, TPO, SCF, IL-3 и IL-6, до введения лентивирусного вектора.
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