HRP20191333T1 - Glodavci koji izražavaju sekvence imunoglobulina osjetljive na ph vrijednost - Google Patents
Glodavci koji izražavaju sekvence imunoglobulina osjetljive na ph vrijednost Download PDFInfo
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- HRP20191333T1 HRP20191333T1 HRP20191333TT HRP20191333T HRP20191333T1 HR P20191333 T1 HRP20191333 T1 HR P20191333T1 HR P20191333T T HRP20191333T T HR P20191333TT HR P20191333 T HRP20191333 T HR P20191333T HR P20191333 T1 HRP20191333 T1 HR P20191333T1
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- 241000283984 Rodentia Species 0.000 title claims 43
- 108060003951 Immunoglobulin Proteins 0.000 title claims 18
- 102000018358 immunoglobulin Human genes 0.000 title claims 18
- 235000014304 histidine Nutrition 0.000 claims 61
- HNDVDQJCIGZPNO-UHFFFAOYSA-N histidine Natural products OC(=O)C(N)CC1=CN=CN1 HNDVDQJCIGZPNO-UHFFFAOYSA-N 0.000 claims 59
- 108020004705 Codon Proteins 0.000 claims 57
- 150000007523 nucleic acids Chemical group 0.000 claims 34
- 108091028043 Nucleic acid sequence Proteins 0.000 claims 33
- 108010047041 Complementarity Determining Regions Proteins 0.000 claims 23
- 108090000623 proteins and genes Proteins 0.000 claims 22
- 210000004602 germ cell Anatomy 0.000 claims 21
- 102000006496 Immunoglobulin Heavy Chains Human genes 0.000 claims 17
- 108010019476 Immunoglobulin Heavy Chains Proteins 0.000 claims 17
- 238000003780 insertion Methods 0.000 claims 17
- 230000037431 insertion Effects 0.000 claims 17
- 238000006467 substitution reaction Methods 0.000 claims 17
- 108010065825 Immunoglobulin Light Chains Proteins 0.000 claims 11
- 101000998953 Homo sapiens Immunoglobulin heavy variable 1-2 Proteins 0.000 claims 10
- 101001008255 Homo sapiens Immunoglobulin kappa variable 1D-8 Proteins 0.000 claims 10
- 101001047628 Homo sapiens Immunoglobulin kappa variable 2-29 Proteins 0.000 claims 10
- 101001008321 Homo sapiens Immunoglobulin kappa variable 2D-26 Proteins 0.000 claims 10
- 101001047619 Homo sapiens Immunoglobulin kappa variable 3-20 Proteins 0.000 claims 10
- 101001008263 Homo sapiens Immunoglobulin kappa variable 3D-15 Proteins 0.000 claims 10
- 102000013463 Immunoglobulin Light Chains Human genes 0.000 claims 10
- 102100022949 Immunoglobulin kappa variable 2-29 Human genes 0.000 claims 8
- 102100036887 Immunoglobulin heavy variable 1-2 Human genes 0.000 claims 7
- 238000000034 method Methods 0.000 claims 6
- 108010067060 Immunoglobulin Variable Region Proteins 0.000 claims 5
- 239000000427 antigen Substances 0.000 claims 4
- 108091007433 antigens Proteins 0.000 claims 4
- 102000036639 antigens Human genes 0.000 claims 4
- 150000002411 histidines Chemical class 0.000 claims 4
- 239000002253 acid Substances 0.000 claims 3
- 125000000487 histidyl group Chemical group [H]N([H])C(C(=O)O*)C([H])([H])C1=C([H])N([H])C([H])=N1 0.000 claims 3
- 102000009786 Immunoglobulin Constant Regions Human genes 0.000 claims 2
- 108010009817 Immunoglobulin Constant Regions Proteins 0.000 claims 2
- 102000017727 Immunoglobulin Variable Region Human genes 0.000 claims 2
- 241000699800 Cricetinae Species 0.000 claims 1
- 101150097493 D gene Proteins 0.000 claims 1
- 241001465754 Metazoa Species 0.000 claims 1
- 230000002378 acidificating effect Effects 0.000 claims 1
- 230000001419 dependent effect Effects 0.000 claims 1
- 230000001747 exhibiting effect Effects 0.000 claims 1
- 230000003053 immunization Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000007935 neutral effect Effects 0.000 claims 1
- 108020004707 nucleic acids Proteins 0.000 claims 1
- 102000039446 nucleic acids Human genes 0.000 claims 1
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Claims (18)
1. Genetski modificirani glodavac koji u svojoj zametnoj liniji sadrži lokus imunoglobulina koji sadrži nepreuređenu humanu sekvencu varijabilne regije imunoglobulina operativno povezanu sa sekvencom konstantne regije imunoglobulina, naznačen time, što nepreuređena humana sekvenca varijabilne regije imunoglobulina sadrži supstituciju najmanje jednog nehistidinskog kodona histidinskim kodonom ili umetanje najmanje jednog histidinskog kodona, u sekvenci nukleinske kiseline koja šifrira regiju koja određuje komplementarnost (CDR), naznačeno time, što histidinski kodon nije šifriran odgovarajućim humanim segmentom gena zametne linije divljeg tipa.
2. Glodavac prema patentnom zahtjevu 1, naznačen time, što:
(I) glodavac sadrži prvi i drugi varijabilni lokus imunoglobulina, naznačen time, što najmanje prvi ili najmanje drugi varijabilni lokus imunoglobulina sadrži nepreuređenu humanu sekvencu gena varijabilne regije imunoglobulina koja sadrži umetanje najmanje jednog histidinskog kodona ili supstituciju najmanje jednog nehistidinskog kodona najmanje jednim histidinskim kodonom; ili
(II) umetanje histidinskog kodona je u CDR-u odabranom iz CDR1 teškog lanca, CDR2 teškog lanca, CDR3 teškog lanca, CDR1 lakog lanca, CDR2 lakog lanca, CDR3 lakog lanca i njihove kombinacije; ili
(III) nepreuređena humana sekvenca gena varijabilne regije imunoglobulina u varijabilnom lokusu imunoglobulina sadrži klaster od 2, 3, 4 ili 5 histidina koji su supstitucije histidinskog kodona nehistidinskim kodonom i/ili umetanja histidinskih kodona.
3. Glodavac prema patentnom zahtjevu 2(I), naznačen time, što prvi i drugi varijabilni lokus imunoglobulina svaki sadrži nepreuređenu humanu sekvencu gena varijabilne regije imunoglobulina koja sadrži supstituciju najmanje jednog nehistidinskog kodona najmanje jednim histidinskim kodonom ili umetanje najmanje jednog histidinskog kodona.
4. Glodavac prema patentnom zahtjevu 3, naznačen time, što:
(I) prvi varijabilni lokus imunoglobulina je nepreuređeni humani varijabilni lokus imunoglobulinskog teškog lanca (nepreuređeni segmenti V, D, J); ili
(II) drugi varijabilni lokus imunoglobulina je nepreuređeni humani lokus imunoglobulinskog lakog lanca (nepreuređeni segmenti V, J).
5. Glodavac prema patentnom zahtjevu 4 (I), naznačen time, što:
(a) nepreuređeni humani varijabilni lokus imunoglobulinskog teškog lanca sadrži nepreuređene humane segmente V, D i J;
(b) nepreuređeni humani lokus imunoglobulinskog teškog lanca sadrži nepreuređene humane segmente V, sintetički segment D koji sadrži sponu i humani segment J, opcionalno naznačen time, što sintetički segment D sadrži najmanje jedan histidinski kodon;
(c) drugi varijabilni lokus imunoglobulina sadrži preuređenu varijabilnu sekvencu gena imunoglobulinskog lakog lanca (preuređena sekvenca VJ); ili
(d) nepreuređeni humani lokus imunoglobulinskog teškog lanca sadrži humane segmente gena D koji su invertirani u pogledu smjera lokusa imunoglobulinskog teškog lanca.
6. Glodavac prema patentnom zahtjevu 2(I), naznačen time, što je najmanje jedan prvi varijabilni lokus imunoglobulina ili drugi varijabilni lokus imunoglobulina operativno povezan s endogenom glodarskom sekvencom nukleinske kiseline konstantne regije na endogenom glodarskom lokusu imunoglobulina.
7. Glodavac prema patentnom zahtjevu 5(a), naznačen time, što su nepreuređeni humani segmenti V, D, J operativno povezani s endogenom nehumanom sekvencom nukleinske kiseline konstantne regije imunoglobulinskog teškog lanca, opcionalno operativno povezani s endogenom glodarskom sekvencom nukleinske kiseline konstantne regije imunoglobulinskog teškog lanca na endogenom glodarskom lokusu imunoglobulina.
8. Genetski modificirani glodavac, koji sadrži
humanu nepreuređenu sekvencu varijabilne regije imunoglobulinskog teškog lanca koja sadrži humane segmente VH, D i JH, naznačeno time, što je humana nepreuređena sekvenca varijabilne regije imunoglobulinskog teškog lanca operativno povezana sa sekvencom gena konstantne regije imunoglobulinskog teškog lanca, naznačeno time, što jedan ili više humanih segmenata gena VH, D i JH sadrže najmanje jednu supstituciju nehistidinskog kodona histidinskim kodonom i/ili najmanje jedno umetanje histidinskog kodona, u sekvenci nukleinske kiseline koja šifrira regiju koja određuje komplementarnost (CDR), naznačeno time, što supstituirani ili umetnuti histidinski kodon nije šifriran odgovarajućim humanim segmentom gena zametne linije divljeg tipa; i
humanu nepreuređenu sekvencu nukleinske kiseline varijabilne regije imunoglobulinskog lakog lanca koja sadrži humane segmente VL i J, naznačeno time, što je humana nepreuređena sekvenca nukleinske kiseline varijabilne regije imunoglobulinskog lakog lanca operativno povezana sa sekvencom gena konstantne regije imunoglobulinskog lakog lanca, naznačeno time, što jedan ili više segmenata gena VL i JL sadrže najmanje jednu supstituciju nehistidinskog kodona histidinskim kodonom i/ili najmanje jedno umetanje histidinskog kodona, u sekvenci nukleinske kiseline koja šifrira regiju koja određuje komplementarnost (CDR), naznačeno time, što supstituirani ili umetnuti histidinski kodon humane nepreuređene sekvence nukleinske kiseline varijabilne regije imunoglobulinskog lakog lanca nije šifriran odgovarajućim humanim segmentom gena zametne linije divljeg tipa.
9. Genetski modificirani glodavac prema patentnom zahtjevu 8, naznačen time, što:
(I) humana nepreuređena sekvenca nukleinske kiseline varijabilne regije imunoglobulinskog teškog lanca je operativno povezana s glodarskom sekvencom nukleinske kiseline konstantne regije imunoglobulinskog teškog lanca, opcionalno naznačeno time, što je glodarska sekvenca nukleinske kiseline konstantne regije imunoglobulinskog teškog lanca operativno povezana s humanom nepreuređenom sekvencom nukleinske kiseline varijabilne regije imunoglobulinskog teškog lanca na endogenom glodarskom lokusu imunoglobulina; i/ili
(II) naznačen time, što je glodarska sekvenca nukleinske kiseline konstantne regije imunoglobulinskog lakog lanca operativno povezana s humanom nepreuređenom sekvencom nukleinske kiseline varijabilne regije imunoglobulinskog lakog lanca na endogenom glodarskom lokusu imunoglobulina u zametnoj liniji glodavca.
10. Genetski modificirani glodavac prema patentnom zahtjevu 8 ili 9, naznačen time, što nepreuređena sekvenca nukleinske kiseline varijabilne regije imunoglobulinskog lakog lanca sadrži najviše dva humana segmenta gena VL, naznačene time, što svaki od najviše dva humana segmenta gena VL sadrži supstituciju najmanje jednog nehistidinskog ostatka histidinskim ostatkom.
11. Genetski modificirani glodavac, koji sadrži
humanu nepreuređenu sekvencu varijabilne regije imunoglobulinskog teškog lanca koja sadrži humane nepreuređene segmente VH, D i JH, naznačeno time, što je humana nepreuređena sekvenca varijabilne regije imunoglobulinskog teškog lanca operativno povezana sa sekvencom gena konstantne regije imunoglobulinskog teškog lanca, naznačeno time, što jedan ili više humanih segmenata gena VH, D i JH sadrže najmanje jednu supstituciju nehistidinskog kodona histidinskim kodonom i/ili najmanje jedno umetanje histidinskog kodona, u sekvenci nukleinske kiseline koja šifrira regiju koja određuje komplementarnost (CDR), naznačeno time, što supstituirani ili umetnuti histidinski kodon nije šifriran odgovarajućim humanim segmentom gena zametne linije divljeg tipa; i
jednu preuređenu humanu sekvencu nukleinske kiseline varijabilne regije VJ imunoglobulinskog lakog lanca koja sadrži humane segmente VL i JL, naznačeno time, što je jedna preuređena humana sekvenca nukleinske kiseline varijabilne regije imunoglobulinskog lakog lanca operativno povezana sa sekvencom gena konstantne regije imunoglobulinskog lakog lanca, naznačeno time, što preuređena sekvenca VJ sadrži najmanje jednu supstituciju nehistidinskog kodona histidinskim kodonom ili najmanje jedno umetanje histidinskog kodona, u sekvenci nukleinske kiseline koja šifrira regiju koja određuje komplementarnost (CDR), naznačeno time, što histidinski kodon humane preuređene sekvence nukleinske kiseline varijabilne regije imunoglobulinskog lakog lanca nije šifriran odgovarajućim humanim segmentom gena zametne linije divljeg tipa.
12. Genetski modificirani glodavac prema patentnom zahtjevu 11, naznačen time, što:
(I) humana nepreuređena sekvenca nukleinske kiseline varijabilne regije imunoglobulinskog teškog lanca je operativno povezana sa glodarskom sekvencom nukleinske kiseline konstantne regije imunoglobulinskog teškog lanca, opcionalno naznačeno time, što je glodarska sekvenca nukleinske kiseline konstantne regije imunoglobulinskog teškog lanca operativno povezana s humanom nepreuređenom sekvencom nukleinske kiseline varijabilne regije imunoglobulinskog teškog lanca na endogenom glodarskom lokusu imunoglobulina u zametnoj liniji glodavca i/ili
(II) naznačen time, što je glodarska sekvenca konstantne regije imunoglobulinskog lakog lanca operativno povezana s humanom preuređenom sekvencom nukleinske kiseline varijabilne regije imunoglobulinskog lakog lanca na endogenom glodarskom lokusu imunoglobulina u zametnoj liniji glodavca.
13. Genetski modificirani glodavac, naznačen time, što životinja u svojoj zametnoj liniji sadrži
najmanje jedno umetanje histidinskog kodona ili najmanje jednu supstituciju nehistidinskog kodona histidinskim kodonom u nepreuređenoj sekvenci gena varijabilne regije imunoglobulinskog teškog lanca koja je operativno povezana s genom konstantne regije teškog lanca na lokusu imunoglobulinskog teškog lanca, naznačeno time, što je histidinski kodon lokusa imunoglobulinskog teškog lanca sekvenca nukleinske kiseline koja šifrira regiju koja određuje komplementarnost (CDR) i nije šifrirana odgovarajućim segmentom gena zametne linije divljeg tipa; i
najmanje jedno umetanje histidinskog kodona ili najmanje jedna supstitucija nehistidinskog kodona histidinskim kodonom u nepreuređenu sekvencu gena varijabilne regije imunoglobulinskog lakog lanca koja je operativno povezana s genom konstantne regije lakog lanca na lokusu imunoglobulinskog lokusa, naznačeno time, što je histidinski kodon lokusa imunoglobulinskog lakog lanca sekvenca nukleinske kiseline koja šifrira regiju koja određuje komplementarnost (CDR) i nije šifrirana odgovarajućim segmentom gena zametne linije divljeg tipa.
14. Metoda za dobivanje glodavca koji proizvodi varijabilne domene antitijela s histidinima šifriranim modificiranim histidinskim kodonima, koja se sastoji od:
modificiranja zametne linije glodavca kako bi sadržavala najmanje jednu supstituciju nehistidinskog kodona histidinskim kodonom ili najmanje jedno umetanje histidinskog kodona u nepreuređenu humanu sekvencu gena varijabilne regije imunoglobulinskog teškog lanca koja sadrži nepreuređene humane segmente VH, D i JH, naznačeno time, što je histidinski kodon sekvenca nukleinske kiseline koja šifrira regiju koja određuje komplementarnost (CDR) i nije šifrirana odgovarajućim humanim segmentom gena zametne linije divljeg tipa; i/ili
modificiranja zametne linije glodavca kako bi sadržavala najmanje jednu supstituciju nehistidinskog kodona histidinskim kodonom ili najmanje jedno umetanje histidinskog kodona, u nepreuređenu humanu sekvencu gena varijabilne regije imunoglobulinskog lakog lanca koja sadrži nepreuređene humane segmente VL i JL, naznačeno time, što je histidinski kodon sekvenca nukleinske kiseline koja šifrira regiju koja određuje komplementarnost (CDR) i nije šifrirana odgovarajućim humanim segmentom gena zametne linije divljeg tipa.
15. Metoda prema patentnom zahtjevu 14, naznačena time, što se metoda sastoji od:
(I) genetskog modificiranja zametne linije glodavca kako bi sadržavala humanu nepreuređenu sekvencu varijabilne regije imunoglobulinskog teškog lanca koja sadrži humane segmente VH, D i JH i provedbe supstitucije ili umetanja histidina u nepreuređene humane segmente VH, D i JH; i/ili
(II) genetskog modificiranja zametne linije glodavca kako bi sadržavala humanu nepreuređenu sekvencu nukleinske kiseline varijabilne regije imunoglobulinskog lakog lanca koja sadrži humane segmente VL i JL i provedbe supstitucije ili umetanja histidina u nepreuređenu humanu sekvencu nukleinske kiseline varijabilne regije imunoglobulinskog lakog lanca.
16. Metoda za dobivanje glodavca koji proizvodi varijabilne domene antitijela s histidinom šifriranim modificiranim histidinskim kodonima, koja se sastoji od:
modificiranja glodavca kako bi sadržavao najmanje jednu supstituciju histidinskog kodona nehistidinskim kodonom ili najmanje jedno umetanje histidinskog kodona u nepreuređenu sekvencu gena varijabilne regije imunoglobulinskog teškog lanca nepreuređenog varijabilnog lokusa imunoglobulinskog teškog lanca koji sadrži segmente VH, D i JH,
naznačena time, što je histidinski kodon sekvenca nukleinske kiseline koja šifrira regiju koja određuje komplementarnost (CDR) i nije šifrirana odgovarajućim humanim segmentom gena zametne linije divljeg tipa; i
modificiranja glodavca kako bi sadržavao najmanje jednu supstituciju histidinskog kodona nehistidinskim kodonom ili najmanje jedno umetanje histidinskog kodona u jednu preuređenu varijabilnu sekvencu imunoglobulinskog lakog lanca koja sadrži preuređene sekvence segmenata VL i JL u zametnoj liniji, naznačeno time, što je histidinski kodon sekvenca nukleinske kiseline koja šifrira regiju koja određuje komplementarnost (CDR) i nije šifrirana odgovarajućim segmentom gena zametne linije divljeg tipa.
17. Glodavac prema bilo kojem patentnom zahtjevu od 1 do 13 ili dobiven pomoću metode prema bilo kojem patentnom zahtjevu od 14 do 16, naznačen time, što je glodavac odabran iz miša, štakora ili hrčka.
18. Metoda za proizvodnju antitijela koje ispoljava vezivanje za interesni antigen ovisno o pH vrijednosti koja se sastoji od imunizacije glodavca prema bilo kojem patentnom zahtjevu od 1 do 13 ili dobivenog pomoću metode prema bilo kojem patentnom zahtjevu od 14 do 16 s interesnim antigenom i odabira antitijela koje se vezuje za interesni antigen pri neutralnoj pH vrijednosti uz ispoljavanje smanjenog vezivanja za antigen pri kiseloj pH vrijednosti.
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