CD79-specific chimeric antigen receptor
The present invention provides a chimeric antigen receptor (CAR) which specifically binds CD79 as well as a nucleic acid sequence and a vector encoding the CAR. It further provides a cell which expresses the CAR at the cell surface.
1. A chimeric antigen receptor (CAR) which specifically binds the unspliced portion of the CD79B ectodomain shown as SEQ ID NO: 146 and which comprises an antigen-binding domain comprising:
a) a heavy chain variable region (VH) having complementarity determining regions (CDRs) with the following sequences:
(SEQ ID NO: 113)
CDR1 - GFTFSNAA;
(SEQ ID NO: 114)
CDR2 - IRTKPNNYAT;
(SEQ ID NO: 115)
CDR3 - TYYDGSSYAMDA;
and
a light chain variable region (VL) having CDRs with the following sequences:
(SEQ ID NO: 116)
CDR1 - QSLEYSDGYTY;
CDR2 - EVS;
(SEQ ID NO: 117)
CDR3 - FQATHDPYT;
or
b) a VH having CDRs with the following sequences:
(SEQ ID NO: 121)
CDR1 - GFTFSHTA;
(SEQ ID NO: 122)
CDR2 - IRIQPKNYAT;
(SEQ ID NO: 123)
CDR3 - TAAGFGFDY;
and
a VL having CDRs with the following sequences:
(SEQ ID NO: 124)
CDR1 - QSLEYSDGNTY;
CDR2 - EVS;
(SEQ ID NO: 125)
CDR3 - LQATHDPFT;
or
c) a VH having CDRs with the following sequences:
(SEQ ID NO: 113)
CDR1 - GFTFSNAA;
(SEQ ID NO: 114)
CDR2 - IRTKPNNYAT;
(SEQ ID NO: 129)
CDR3 - TADGGYGFDY;
and
a VL having CDRs with the following sequences:
(SEQ ID NO: 116)
CDR1 - QSLEYSDGYTY;
CDR2 - EVS;
(SEQ ID NO: 130)
CDR3 - FQGTHDPYT;
or
d) a VH having CDRs with the following sequences:
(SEQ ID NO: 113)
CDR1 - GFTFSNAA;
(SEQ ID NO: 114)
CDR2 - IRTKPNNYAT;
(SEQ ID NO: 115)
CDR3 - TYYDGSSYAMDA;
and
a VL having CDRs with the following sequences:
(SEQ ID NO: 116)
CDR1 - QSLEYSDGYTY;
CDR2 - EIS;
(SEQ ID NO: 117)
CDR3 - FQATHDPYT;
or
e) a VH having CDRs with the following sequences:
(SEQ ID NO: 136)
CDR1 - GFTFSNTA;
(SEQ ID NO: 122)
CDR2 - IRIQPKNYAT;
(SEQ ID NO: 123)
CDR3 - TAAGFGFDY;
and
a VL having CDRs with the following sequences:
(SEQ ID NO: 137)
CDR1 - QRLEYSDGNTY;
CDR2 - EVS;
(SEQ ID NO: 125)
CDR3 - LQATHDPFT;
or
f) a VH having CDRs with the following sequences:
(SEQ ID NO: 141)
CDR1 - GFTFSSAA;
(SEQ ID NO: 114)
CDR2 - IRTKPNNYAT;
(SEQ ID NO: 115)
CDR3 - TYYDGSSYAMDA;
and
a VL having CDRs with the following sequences:
CDR1-
(SEQ ID NO: 116)
QSLEYSDGYTY;
CDR2-
EVS;
CDR3-
(SEQ ID NO: 117)
FQATHDPYT.
2. The CAR according to claim 1 , which comprises an antigen binding domain selected from a scFv and, a Fab.
3. The CAR according to claim 1 , wherein the antigen-binding domain comprises a sequence selected from SEQ ID NO: 120, 128, 133, 135, 140 and 144.