EP1244707A1 - Antibodies against signal regulator proteins - Google Patents
Antibodies against signal regulator proteinsInfo
- Publication number
- EP1244707A1 EP1244707A1 EP00979567A EP00979567A EP1244707A1 EP 1244707 A1 EP1244707 A1 EP 1244707A1 EP 00979567 A EP00979567 A EP 00979567A EP 00979567 A EP00979567 A EP 00979567A EP 1244707 A1 EP1244707 A1 EP 1244707A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- deposit
- sirp
- international
- cells
- date
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 102000034356 gene-regulatory proteins Human genes 0.000 title description 3
- 108091006104 gene-regulatory proteins Proteins 0.000 title description 3
- 101000863873 Homo sapiens Tyrosine-protein phosphatase non-receptor type substrate 1 Proteins 0.000 claims abstract description 61
- 102100029948 Tyrosine-protein phosphatase non-receptor type substrate 1 Human genes 0.000 claims abstract description 61
- 101000868279 Homo sapiens Leukocyte surface antigen CD47 Proteins 0.000 claims abstract description 10
- 102100032913 Leukocyte surface antigen CD47 Human genes 0.000 claims abstract description 10
- 230000003993 interaction Effects 0.000 claims abstract description 8
- 108010090054 Membrane Glycoproteins Proteins 0.000 claims abstract description 6
- 102000012750 Membrane Glycoproteins Human genes 0.000 claims abstract description 6
- 244000005700 microbiome Species 0.000 claims description 47
- 210000004027 cell Anatomy 0.000 claims description 22
- 210000004408 hybridoma Anatomy 0.000 claims description 7
- 210000003958 hematopoietic stem cell Anatomy 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 239000003550 marker Substances 0.000 claims description 4
- 239000008177 pharmaceutical agent Substances 0.000 claims description 3
- 239000003814 drug Substances 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims description 2
- 229940124597 therapeutic agent Drugs 0.000 claims description 2
- 239000008194 pharmaceutical composition Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 18
- 230000014509 gene expression Effects 0.000 description 16
- 238000000034 method Methods 0.000 description 16
- 238000012360 testing method Methods 0.000 description 16
- 238000002372 labelling Methods 0.000 description 11
- 230000035899 viability Effects 0.000 description 10
- 102100031573 Hematopoietic progenitor cell antigen CD34 Human genes 0.000 description 9
- 101000777663 Homo sapiens Hematopoietic progenitor cell antigen CD34 Proteins 0.000 description 9
- 230000006870 function Effects 0.000 description 7
- 102000004169 proteins and genes Human genes 0.000 description 7
- 108090000623 proteins and genes Proteins 0.000 description 7
- 239000008186 active pharmaceutical agent Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 238000012790 confirmation Methods 0.000 description 6
- 239000003446 ligand Substances 0.000 description 6
- 210000000130 stem cell Anatomy 0.000 description 6
- 210000000066 myeloid cell Anatomy 0.000 description 5
- 230000001225 therapeutic effect Effects 0.000 description 5
- 208000031261 Acute myeloid leukaemia Diseases 0.000 description 4
- 208000032791 BCR-ABL1 positive chronic myelogenous leukemia Diseases 0.000 description 4
- 208000010833 Chronic myeloid leukaemia Diseases 0.000 description 4
- 208000033761 Myelogenous Chronic BCR-ABL Positive Leukemia Diseases 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 210000002798 bone marrow cell Anatomy 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 208000033776 Myeloid Acute Leukemia Diseases 0.000 description 3
- 102000001253 Protein Kinase Human genes 0.000 description 3
- 230000024245 cell differentiation Effects 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 108060006633 protein kinase Proteins 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- 102000027426 receptor tyrosine kinases Human genes 0.000 description 3
- 108091008598 receptor tyrosine kinases Proteins 0.000 description 3
- 108020003175 receptors Proteins 0.000 description 3
- 102000005962 receptors Human genes 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 102100024222 B-lymphocyte antigen CD19 Human genes 0.000 description 2
- 102400001368 Epidermal growth factor Human genes 0.000 description 2
- 101800003838 Epidermal growth factor Proteins 0.000 description 2
- 101000980825 Homo sapiens B-lymphocyte antigen CD19 Proteins 0.000 description 2
- 101100477531 Homo sapiens SIRPA gene Proteins 0.000 description 2
- 102000045595 Phosphoprotein Phosphatases Human genes 0.000 description 2
- 108700019535 Phosphoprotein Phosphatases Proteins 0.000 description 2
- 102000010780 Platelet-Derived Growth Factor Human genes 0.000 description 2
- 108010038512 Platelet-Derived Growth Factor Proteins 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 239000000427 antigen Substances 0.000 description 2
- 102000036639 antigens Human genes 0.000 description 2
- 108091007433 antigens Proteins 0.000 description 2
- 210000001185 bone marrow Anatomy 0.000 description 2
- 238000004113 cell culture Methods 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 2
- 230000001086 cytosolic effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229940116977 epidermal growth factor Drugs 0.000 description 2
- 210000003013 erythroid precursor cell Anatomy 0.000 description 2
- 210000003714 granulocyte Anatomy 0.000 description 2
- 238000010166 immunofluorescence Methods 0.000 description 2
- NOESYZHRGYRDHS-UHFFFAOYSA-N insulin Chemical compound N1C(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(NC(=O)CN)C(C)CC)CSSCC(C(NC(CO)C(=O)NC(CC(C)C)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CCC(N)=O)C(=O)NC(CC(C)C)C(=O)NC(CCC(O)=O)C(=O)NC(CC(N)=O)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CSSCC(NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2C=CC(O)=CC=2)NC(=O)C(CC(C)C)NC(=O)C(C)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2NC=NC=2)NC(=O)C(CO)NC(=O)CNC2=O)C(=O)NCC(=O)NC(CCC(O)=O)C(=O)NC(CCCNC(N)=N)C(=O)NCC(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC(O)=CC=3)C(=O)NC(C(C)O)C(=O)N3C(CCC3)C(=O)NC(CCCCN)C(=O)NC(C)C(O)=O)C(=O)NC(CC(N)=O)C(O)=O)=O)NC(=O)C(C(C)CC)NC(=O)C(CO)NC(=O)C(C(C)O)NC(=O)C1CSSCC2NC(=O)C(CC(C)C)NC(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CC(N)=O)NC(=O)C(NC(=O)C(N)CC=1C=CC=CC=1)C(C)C)CC1=CN=CN1 NOESYZHRGYRDHS-UHFFFAOYSA-N 0.000 description 2
- 208000032839 leukemia Diseases 0.000 description 2
- 210000004698 lymphocyte Anatomy 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 210000001616 monocyte Anatomy 0.000 description 2
- 210000004976 peripheral blood cell Anatomy 0.000 description 2
- 230000026731 phosphorylation Effects 0.000 description 2
- 238000006366 phosphorylation reaction Methods 0.000 description 2
- 229920001184 polypeptide Polymers 0.000 description 2
- 102000004196 processed proteins & peptides Human genes 0.000 description 2
- 108090000765 processed proteins & peptides Proteins 0.000 description 2
- 230000035755 proliferation Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- VBEQCZHXXJYVRD-GACYYNSASA-N uroanthelone Chemical compound C([C@@H](C(=O)N[C@H](C(=O)N[C@@H](CS)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CS)C(=O)N[C@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CC=1C=CC(O)=CC=1)C(=O)N[C@@H](CO)C(=O)NCC(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CS)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC=1C2=CC=CC=C2NC=1)C(=O)N[C@@H](CC=1C2=CC=CC=C2NC=1)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(O)=O)C(C)C)[C@@H](C)O)NC(=O)[C@H](CO)NC(=O)[C@H](CC(O)=O)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CO)NC(=O)[C@H](CCC(O)=O)NC(=O)[C@@H](NC(=O)[C@H](CC=1NC=NC=1)NC(=O)[C@H](CCSC)NC(=O)[C@H](CS)NC(=O)[C@@H](NC(=O)CNC(=O)CNC(=O)[C@H](CC(N)=O)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CS)NC(=O)[C@H](CC=1C=CC(O)=CC=1)NC(=O)CNC(=O)[C@H](CC(O)=O)NC(=O)[C@H](CC=1C=CC(O)=CC=1)NC(=O)[C@H](CO)NC(=O)[C@H](CO)NC(=O)[C@H]1N(CCC1)C(=O)[C@H](CS)NC(=O)CNC(=O)[C@H]1N(CCC1)C(=O)[C@H](CC=1C=CC(O)=CC=1)NC(=O)[C@H](CO)NC(=O)[C@@H](N)CC(N)=O)C(C)C)[C@@H](C)CC)C1=CC=C(O)C=C1 VBEQCZHXXJYVRD-GACYYNSASA-N 0.000 description 2
- 102100021334 Bcl-2-related protein A1 Human genes 0.000 description 1
- 102100035793 CD83 antigen Human genes 0.000 description 1
- 101000972324 Cynodon dactylon Leaf protein Proteins 0.000 description 1
- 102000028180 Glycophorins Human genes 0.000 description 1
- 108091005250 Glycophorins Proteins 0.000 description 1
- 101000677540 Homo sapiens Acetyl-CoA carboxylase 2 Proteins 0.000 description 1
- 101000894929 Homo sapiens Bcl-2-related protein A1 Proteins 0.000 description 1
- 101000946856 Homo sapiens CD83 antigen Proteins 0.000 description 1
- 101000581981 Homo sapiens Neural cell adhesion molecule 1 Proteins 0.000 description 1
- 101000800116 Homo sapiens Thy-1 membrane glycoprotein Proteins 0.000 description 1
- 101000835093 Homo sapiens Transferrin receptor protein 1 Proteins 0.000 description 1
- 102000004877 Insulin Human genes 0.000 description 1
- 108090001061 Insulin Proteins 0.000 description 1
- OUYCCCASQSFEME-QMMMGPOBSA-N L-tyrosine Chemical compound OC(=O)[C@@H](N)CC1=CC=C(O)C=C1 OUYCCCASQSFEME-QMMMGPOBSA-N 0.000 description 1
- 241000699670 Mus sp. Species 0.000 description 1
- 102100027347 Neural cell adhesion molecule 1 Human genes 0.000 description 1
- 102000004160 Phosphoric Monoester Hydrolases Human genes 0.000 description 1
- 108090000608 Phosphoric Monoester Hydrolases Proteins 0.000 description 1
- 108091000080 Phosphotransferase Proteins 0.000 description 1
- 206010035226 Plasma cell myeloma Diseases 0.000 description 1
- 108090000412 Protein-Tyrosine Kinases Proteins 0.000 description 1
- 102000004022 Protein-Tyrosine Kinases Human genes 0.000 description 1
- 108090000873 Receptor Protein-Tyrosine Kinases Proteins 0.000 description 1
- 102000004278 Receptor Protein-Tyrosine Kinases Human genes 0.000 description 1
- 108010008281 Recombinant Fusion Proteins Proteins 0.000 description 1
- 102000007056 Recombinant Fusion Proteins Human genes 0.000 description 1
- 108010073443 Ribi adjuvant Proteins 0.000 description 1
- 210000001744 T-lymphocyte Anatomy 0.000 description 1
- 102100033523 Thy-1 membrane glycoprotein Human genes 0.000 description 1
- 102100026144 Transferrin receptor protein 1 Human genes 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 210000000649 b-lymphocyte subset Anatomy 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000010261 cell growth Effects 0.000 description 1
- 230000004663 cell proliferation Effects 0.000 description 1
- 230000033077 cellular process Effects 0.000 description 1
- 230000005754 cellular signaling Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 210000004443 dendritic cell Anatomy 0.000 description 1
- 239000000032 diagnostic agent Substances 0.000 description 1
- 229940039227 diagnostic agent Drugs 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000003828 downregulation Effects 0.000 description 1
- 230000002449 erythroblastic effect Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 108091006058 immobilized fusion proteins Proteins 0.000 description 1
- 230000001900 immune effect Effects 0.000 description 1
- 230000037189 immune system physiology Effects 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229940125396 insulin Drugs 0.000 description 1
- 238000002826 magnetic-activated cell sorting Methods 0.000 description 1
- 230000003211 malignant effect Effects 0.000 description 1
- 201000000050 myeloid neoplasm Diseases 0.000 description 1
- 210000000822 natural killer cell Anatomy 0.000 description 1
- 210000002569 neuron Anatomy 0.000 description 1
- 230000002018 overexpression Effects 0.000 description 1
- -1 phosphoryl groups Chemical group 0.000 description 1
- 102000020233 phosphotransferase Human genes 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000028344 regulation of stem cell differentiation Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000019491 signal transduction Effects 0.000 description 1
- 210000000952 spleen Anatomy 0.000 description 1
- 238000011476 stem cell transplantation Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- OUYCCCASQSFEME-UHFFFAOYSA-N tyrosine Natural products OC(=O)C(N)CC1=CC=C(O)C=C1 OUYCCCASQSFEME-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K16/00—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
- C07K16/18—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K39/00—Medicinal preparations containing antigens or antibodies
- A61K2039/505—Medicinal preparations containing antigens or antibodies comprising antibodies
Definitions
- the present invention relates to monoclonal antibodies which bind specifically to the extracellular domain of the cell surface glycoproteins SIRP.
- SIRP Signal regulator proteins
- the two subfamilies differ in the presence or absence of a cytoplasmic domain that is capable of binding SH-2 domains.
- the in WO 97/48723 SIRP4 and in the publication by Kharitonenkov et al. SIRP ⁇ called subfamily has such a cytoplasmic domain, while those in WO 97/48723 SIRPl and in the article by Kharitonenkov et al. SIRPß called subfamily does not have this domain.
- Cellular signaling is a fundamental mechanism by which external stimulations that regulate various cellular processes are transmitted into the interior of cells.
- a central biochemical mechanism of signal transmission involves the reversible phosphorylation of proteins, which regulates the activity of mature proteins by changing their structure and function.
- protein phosphatases are involved in this process, which cleave phosphoryl groups from substrate proteins by hydrolysis, which on the other hand are transferred to the substrate proteins by protein kinases.
- the opposite functions of protein kinases and protein phosphases regulate the signal flow in the signal transmission processes.
- a group of the kinases involved in reversible phosphorylation are the protein tyrosine kinases of the receptor type. Tyrosine phosphatases can reduce the catalytic activity of protein kinases that are involved in cell proliferation and are therefore thought to be possible antitumor proteins. In addition, it is assumed that protein phosphatases are also involved in cellular differentiation processes.
- SIRP ⁇ The best characterized member of the human SIRP family, SIRP ⁇ (or SIRP4) is a substrate of activated receptor tyrosine kinases. Overexpression of SIRP ⁇ leads to a reduced response to the receptor tyrosine kinase ligands EGF (epidermal growth factor), insulin and PDGF (platelet-derived growth factor).
- SIRP acts as a negative regulator in the proliferation and differentiation of cells, so that antibodies against SIRP not only for studying the expression and function of SIRP but also in therapeutic and diagnostic applications in connection with diseases or impairments that have an irregularity in a signal transmission path can play a role.
- WO 97/48723 generally describes a method for producing monoclonal antibodies against SIRP polypeptides, the therapeutic / diagnostic use of such antibodies also being mentioned, in particular in connection with immunological test methods.
- monoclonal antibodies themselves are not presented in this document, in particular, no reference is made to a deposit under the Budapest Treaty. Against this background, the object of the present application is to create monoclonal antibodies of the type mentioned at the outset which bind specifically to the extracellular domain of the cell surface glycoproteins SIRP.
- Such monoclonal antibodies are preferably produced by hybridoma cells which are selected from the group of the following hybridoma cells SE5A5 deposited on November 30, 1999, November 25, 1999 and January 13, 2000 with the German Collection of Microorganisms and Cell Cultures GmbH, DSMZ, according to the Budapest Treaty , SE7C2, SE12B6, P3C4 (all 30.11.1999), B1D5 (25.11.1999) and B4B6 (13.01.2000).
- the invention further relates to hybridoma cells which have the ability to produce and release such an antibody.
- the inventors of the present application have for the first time provided monoclonal antibodies and hybridoma cells which produce and release them, which enable targeted recognition and influencing of cells which have the extracellular domain of SIRP.
- the antibodies thus provide a hitherto unique and versatile means for the doctor and researcher to detect such cells on the one hand, both in cell culture and in the patient's organism, and on the other hand to manipulate these cells if necessary, either by the antibody itself or through specific reagents coupled to it.
- the inventors of the present application found that the antibodies SE5A5, SE7C2, SE12B6 and P3C4 bind both to polypeptides of the subfamily SIRP ⁇ and SIRPß, while the antibodies B1D5 and B4B6 only bind specifically to SIRPß.
- the invention also relates to a monoclonal antibody which specifically binds only to the extracellular domain of SIRPß.
- the inventors have also found that the antibodies SE5A5, SE7C2 and SE12B6 block the interaction of SIRP ⁇ with the surface marker CD47.
- the invention further relates to a monoclonal antibody which binds specifically to the extracellular domain of SIRP ⁇ and blocks the interaction of SIRP ⁇ with the surface marker CD47.
- CD47 is the extracellular ligand for human SIRP and that these two mutual receptors are involved in cellular adhesion, which can be blocked by the monoclonal antibodies SE5A5, SE7C2 and SE12B6.
- SE5A5, SE7C2 and SE12B6 monoclonal antibodies
- SE5A5, SE7C2 and SE12B6 monoclonal antibodies
- the invention further relates to a pharmaceutical agent with one of the new antibodies, which is preferably coupled to a cellularly directed therapeutic or diagnostic agent.
- An antibody according to the invention which is coupled to a detection means, for example a radioactive marker, indirectly binds this detection means to the corresponding cells and thus enables the direct detection of these cells, for example using X-ray diagnostic / scintigraphic methods.
- the coupling with a therapeutically active agent can also enable a direct and targeted influencing of SIRP-carrying cells.
- the present invention further relates to the use of an antibody according to the invention for the isolation of hematopoietic stem cells.
- Example 1 Production and characterization of monoclonal antibodies against the cell surface glycoprotein SIRP
- SIRP ⁇ lex SIRP ⁇ lex
- SIRPßlex SIRPßlex
- mice Four to eight week old female Balb / c mice are immunized three times at 14 day intervals with 15 ⁇ g protein diluted 1: 2 in RIBI adjuvant (PanSystems, Aidenbach, Germany). Four days after the last injection, the spleen was removed and fused with myeloma cells from the known strain SP2 / 0. The fused cells were cultured, the selection of specific antibodies were then carried out on a cell line transfected with SIRP ⁇ l or SIRPßl.
- Herge ⁇ SIRP antibody Represented the reactivity and properties of the various, so Herge ⁇ SIRP antibody resulting from the attached table and the following examples.
- the monoclonal antibodies B1D5 and B4B6 are specific for SIRPßl. All SIRP ⁇ l-specific monoclonal antibodies also react with SIRPßl, so that the antibodies SE5A5, SE7C2, SE12B6 and P3C4 can be regarded as specific for SIRP, since other members of the SIRP family have very similar extracellular domains.
- Example 2 Expression of SIRP on bone marrow cells or peripheral blood cells
- the monoclonal antibody P3C4 was used to investigate the surface expression of SIRP on mononuclear bone marrow cells and peripheral blood cells. Using immunofluorescence it was possible to demonstrate that the highest expression is present on monocytes, that there is medium expression on granulocytes and that there is almost no expression on lymphocytes. CD83 + dendritic cells were also very positive for SIRP.
- SIRP myeloid / monocytic progenitor cells.
- SIRP is also expressed on CD19 * B lymphoids and on immature CD117 + and AC133 * progenitor cells.
- no SIRP expression was found on CD3 + T cells, CD56 * natural killer cells or glycophorin A * erythroid progenitor cells.
- SIRP expression in the bone marrow is mainly found on myeloid and CD34 * stem cells and progenitor cells.
- CD34 * bone marrow cells were purified by MACS and stained with antibodies against CD34, SIRP and selected CD markers. It was found that SIRP was on CD34 * CD90 * , CD34 * CD117 ⁇ and CD34 * CD164 expresses stem cells and myeloid subsets but does not express CD34 * CD19 * B cell subsets or CD34 * CD71 expresses erythroid progenitor cells, suggesting that SIRP plays a role in regulating stem cell growth and differentiation.
- SIRP is not only involved in the function of myeloid cells, but also plays an important role in the regulation of stem cell differentiation.
- the antibody P3C4 was also used to check the expression of SIRP on blasts of acute myeloid leukemia (AML) and chronic myeloid leukemia (CML) using immunofluorescence.
- AML acute myeloid leukemia
- CML chronic myeloid leukemia
- SIRP ⁇ lex In order to investigate the possible interaction of SIRP with cellular components on normal and malignant hematopoietic cells, cell binding tests were carried out with immobilized fusion proteins from SIRP ⁇ lex, SIRP ⁇ 2ex and SIRPßlex. All myeloblastic, monoblastic, erythroblastic, megakaryoblastic, B- and T-lymphoblastic cell lines tested strongly bound to SIRP ⁇ lex and SIRP ⁇ 2ex, but not to SIRPßlex, whereby series of dilutions showed that B- and T-lymphoblastic cell lines showed a larger number of binding sites for SIRP.
- SIRP ligands showed strong binding of soluble SIRP ⁇ lex and SIRP ⁇ 2ex to lymphocytes, while the binding to monocytes and granulocytes was significantly weaker.
- the SIRP were negative but strong ⁇ IRP ⁇ lex and SIRP ⁇ 2ex-binding cells CCRF-CEM used to generate monoclonal antibodies that inhibit the binding of SIRP ⁇ lex and SIRP ⁇ 2ex to these cells.
- the antibody CC2C6 found completely blocked this binding.
- CD47-specific monoclonal antibodies can completely block the interaction between CD47 and SIRP, while non-functional monoclonal antibodies have no effect on this interaction. This indicates that the binding of SIRP to CD47 is essential for many functions described for CD47.
- both the blocking and the non-blocking antibodies according to the invention are valuable tools for examining the involvement of SIRP in various immunological processes in vitro.
- the viability of the microorganism mentioned under II was checked on 200 0 - 0 1 - 19 : . At that time the microorganism was
- This international depository accepts the microorganism designated under I, which it received on 2 0 0 0 - 0 1 - 13 (date of first deposit) 1 .
- microorganism referred to under I was received by this international depository on (date of first filing) and an application for conversion of this first deposit into a deposit under the Budapest Treaty was received on (date of receipt of the request for conversion)
- This international depository accepts the microorganism designated under I. which she received on 19 9 9 - 11 - 25 (date of first deposit) '
- microorganism referred to in 1 has been received by this international depository on (date of first deposit) and an application for conversion of this initial deposit into a deposit under the Budapest Treaty has been received on (date of receipt of the application for conversion)
- This international deposit part adopts the microorganism designated under I. which she received on 199 9 - 11 - 3 0 (date of first deposit) '.
- microorganism referred to under I was received by this international depository on (date of first filing) and an application for conversion of this first deposit into a deposit under the Budapest Treaty was received on (date of receipt of the request for conversion)
- This international depository accepts the microorganism designated under I. which it received on 1 9 9 9 9 - 11 - 3 0 (date of first filing)
- microorganism referred to under I was received by this international depository on (date of first deposit) and an application for conversion of this first deposit into a deposit under the Budapest Treaty was received on (therefore the receipt of the application for conversion)
- MIKROORG .NISMEN UND ZELL L LTURCN GmbH authorized persons (tn) or ⁇ .r es (der) from their authorized staff
- This international depository accepts the microorganism designated under I. which she received on 1 9 9 9 - 1 1 - 3 0 (why the first filing).
- microorganism referred to under I was received by this international depository on (date of first filing) and an application for conversion of this first deposit into a deposit under the Budapest Treaty was received on (date of receipt of the request for conversion)
- MIKROORGANISMEN UND ZELLKULTUREN GmbH authorized Pcrson (s) or the employee (s) authorized by them
- This international depository accepts the microorganism designated under I. which it received on 19 9 9 - 11 - 3 0 (date of first deposit) 1 .
- microorganism referred to under I was received by this international depository on (date of first deposit) and an application for conversion of this first deposit into a deposit under the Budapest Treaty was received on (therefore the receipt of the request for conversion)
Abstract
Description
Claims
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19957665 | 1999-11-30 | ||
DE19957665 | 1999-11-30 | ||
DE10010616A DE10010616A1 (en) | 1999-11-30 | 2000-03-03 | Anti-body against signal regulator proteins |
DE10010616 | 2000-03-03 | ||
PCT/EP2000/011322 WO2001040307A1 (en) | 1999-11-30 | 2000-11-16 | Antibodies against signal regulator proteins |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1244707A1 true EP1244707A1 (en) | 2002-10-02 |
Family
ID=26004690
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00979567A Withdrawn EP1244707A1 (en) | 1999-11-30 | 2000-11-16 | Antibodies against signal regulator proteins |
Country Status (4)
Country | Link |
---|---|
US (1) | US6913894B2 (en) |
EP (1) | EP1244707A1 (en) |
AU (1) | AU1701001A (en) |
WO (1) | WO2001040307A1 (en) |
Families Citing this family (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2428240A (en) * | 2005-07-14 | 2007-01-24 | Univ Gen Ve | Diagnostic method for brain damage-related disorders |
CA2702217A1 (en) | 2007-10-11 | 2009-04-16 | Jayne Danska | Modulation of sirp.alpha. - cd47 interaction for increasing human hematopoietic stem cell engraftment and compounds therefor |
EP2111869A1 (en) | 2008-04-23 | 2009-10-28 | Stichting Sanquin Bloedvoorziening | Compositions and methods to enhance the immune system |
EP4311863A3 (en) | 2009-05-15 | 2024-04-10 | University Health Network | Compositions and methods for treating hematologic cancers targeting the sirp alpha- cd47 interaction |
CA2894245C (en) | 2012-12-17 | 2022-03-22 | Trillium Therapeutics Inc. | Treatment of cd47+ disease cells with sirp alpha-fc fusions |
KR102531889B1 (en) | 2016-06-20 | 2023-05-17 | 키맵 리미티드 | Anti-PD-L1 and IL-2 cytokines |
JOP20190009A1 (en) | 2016-09-21 | 2019-01-27 | Alx Oncology Inc | Antibodies against signal-regulatory protein alpha and methods of use |
EP3534964A4 (en) * | 2016-11-03 | 2020-07-15 | Trillium Therapeutics Inc. | Enhancement of cd47 blockade therapy by proteasome inhibitors |
US11779631B2 (en) | 2016-11-03 | 2023-10-10 | Pfizer Inc. | CD47 blockade therapy by HDAC inhibitors |
JP7173971B2 (en) | 2016-12-09 | 2022-11-16 | アレクトル エルエルシー | ANTI-SIRP-α ANTIBODY AND METHOD OF USE THEREOF |
KR20190140454A (en) * | 2017-04-13 | 2019-12-19 | 아두로 바이오테크 홀딩스, 유럽 비.브이. | Anti-SIRP alpha antibody |
EP3625259B1 (en) | 2017-05-16 | 2024-04-17 | Byondis B.V. | Anti-sirpalpha antibodies |
US10961318B2 (en) | 2017-07-26 | 2021-03-30 | Forty Seven, Inc. | Anti-SIRP-α antibodies and related methods |
EP3706775A4 (en) | 2017-11-06 | 2021-09-01 | Trillium Therapeutics Inc. | Cd47 blockade with radiation therapy |
US11292850B2 (en) | 2018-03-21 | 2022-04-05 | ALX Oncology Inc. | Antibodies against signal-regulatory protein α and methods of use |
AR115418A1 (en) | 2018-05-25 | 2021-01-13 | Alector Llc | ANTI-SIRPA ANTIBODIES (SIGNAL REGULATING PROTEIN a) AND METHODS OF USE OF THE SAME |
EP3846855A4 (en) | 2018-09-04 | 2022-05-11 | Trillium Therapeutics Inc. | Cd47 blockade with parp inhibition for disease treatment |
JP7295283B2 (en) | 2019-06-25 | 2023-06-20 | ギリアード サイエンシーズ, インコーポレイテッド | FLT3L-FC fusion proteins and methods of use |
CN114555123B (en) | 2019-10-18 | 2024-04-02 | 四十七公司 | Combination therapy for the treatment of myelodysplastic syndrome and acute myeloid leukemia |
CN110734897A (en) * | 2019-10-31 | 2020-01-31 | 浙江蓝盾药业有限公司 | Hybridoma cell line 12G6, antibody and application thereof |
WO2021087064A1 (en) | 2019-10-31 | 2021-05-06 | Forty Seven, Inc. | Anti-cd47 and anti-cd20 based treatment of blood cancer |
WO2021130638A1 (en) | 2019-12-24 | 2021-07-01 | Carna Biosciences, Inc. | Diacylglycerol kinase modulating compounds |
US11692038B2 (en) | 2020-02-14 | 2023-07-04 | Gilead Sciences, Inc. | Antibodies that bind chemokine (C-C motif) receptor 8 (CCR8) |
TW202302145A (en) | 2021-04-14 | 2023-01-16 | 美商基利科學股份有限公司 | Co-inhibition of cd47/sirpα binding and nedd8-activating enzyme e1 regulatory subunit for the treatment of cancer |
CA3217814A1 (en) | 2021-04-27 | 2022-11-03 | Pfizer Inc. | Enhancement of cd47 blockade therapy with dhfr inhibitors |
US20220389394A1 (en) | 2021-05-18 | 2022-12-08 | Gilead Sciences, Inc. | METHODS OF USING FLT3L-Fc FUSION PROTEINS |
KR20240005901A (en) | 2021-06-23 | 2024-01-12 | 길리애드 사이언시즈, 인코포레이티드 | Diacylglycerol Kinase Modulating Compounds |
AU2022298639A1 (en) | 2021-06-23 | 2023-12-07 | Gilead Sciences, Inc. | Diacylglyercol kinase modulating compounds |
CR20230585A (en) | 2021-06-23 | 2024-02-19 | Gilead Sciences Inc | Diacylglyercol kinase modulating compounds |
AU2022299051A1 (en) | 2021-06-23 | 2023-12-07 | Gilead Sciences, Inc. | Diacylglyercol kinase modulating compounds |
TW202317190A (en) | 2021-06-29 | 2023-05-01 | 美商思進公司 | Methods of treating cancer with a combination of a nonfucosylated anti-cd70 antibody and a cd47 antagonist |
US20230183216A1 (en) | 2021-10-28 | 2023-06-15 | Gilead Sciences, Inc. | Pyridizin-3(2h)-one derivatives |
WO2023073580A1 (en) | 2021-10-29 | 2023-05-04 | Pfizer Inc. | Enhancement of cd47 blockade with taxanes for cd47+ cancer therapy |
US11919869B2 (en) | 2021-10-29 | 2024-03-05 | Gilead Sciences, Inc. | CD73 compounds |
WO2023122581A2 (en) | 2021-12-22 | 2023-06-29 | Gilead Sciences, Inc. | Ikaros zinc finger family degraders and uses thereof |
WO2023122615A1 (en) | 2021-12-22 | 2023-06-29 | Gilead Sciences, Inc. | Ikaros zinc finger family degraders and uses thereof |
TW202340168A (en) | 2022-01-28 | 2023-10-16 | 美商基利科學股份有限公司 | Parp7 inhibitors |
US20230373950A1 (en) | 2022-03-17 | 2023-11-23 | Gilead Sciences, Inc. | Ikaros zinc finger family degraders and uses thereof |
US20230355796A1 (en) | 2022-03-24 | 2023-11-09 | Gilead Sciences, Inc. | Combination therapy for treating trop-2 expressing cancers |
TW202345901A (en) | 2022-04-05 | 2023-12-01 | 美商基利科學股份有限公司 | Combination therapy for treating colorectal cancer |
TW202400138A (en) | 2022-04-21 | 2024-01-01 | 美商基利科學股份有限公司 | Kras g12d modulating compounds |
WO2024006929A1 (en) | 2022-07-01 | 2024-01-04 | Gilead Sciences, Inc. | Cd73 compounds |
US20240091351A1 (en) | 2022-09-21 | 2024-03-21 | Gilead Sciences, Inc. | FOCAL IONIZING RADIATION AND CD47/SIRPa DISRUPTION ANTICANCER COMBINATION THERAPY |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000512482A (en) * | 1996-06-17 | 2000-09-26 | マックス―プランク―ゲゼルシャフト・ツア・フェルデルング・デア・ヴィッセンシャフテン・エー・ファオ | Novel PTP20, PCP-2, BDP-1, CLK, and SIRP proteins and related products and methods |
CA2226962A1 (en) * | 1998-02-16 | 1999-08-16 | Marie Sarfati | Use of binding agents to cd47 and its ligands in the treatment or the prophylaxis of various inflammatory, autoimmune and allergic diseases and in the treatment of graft rejection |
EP1048299A1 (en) * | 1999-04-28 | 2000-11-02 | Faculteit der Geneeskunde van de Vrije Universiteit | Method for inhibiting cell functioning for use in anti-inflammatory and anti-tumour therapies |
-
2000
- 2000-11-16 WO PCT/EP2000/011322 patent/WO2001040307A1/en not_active Application Discontinuation
- 2000-11-16 AU AU17010/01A patent/AU1701001A/en not_active Abandoned
- 2000-11-16 EP EP00979567A patent/EP1244707A1/en not_active Withdrawn
-
2002
- 2002-05-29 US US10/158,415 patent/US6913894B2/en not_active Expired - Fee Related
Non-Patent Citations (7)
Title |
---|
"Lexikon der Biology", 2005, ELSEVIER, MUNICH, GERMANY * |
DATABASE BIOSIS [online] BIOSCIENCES INFORMATION SERVICE, PHILADELPHIA, PA, US; 15 November 1997 (1997-11-15), BUEHRING ET AL: "The signal regulatory protein 1 alpha (SIRP-1alpha) is expressed on the most primitive human hematopoietic stem cell subsets" * |
JACOBS N. ET AL: "EFFICIENT IMMUNOSELECTION OF CYTOLYTIC EFFECTORS WITH A MAGNETIC CELL SORTER", RESEARCH IN IMMUNOLOGY, vol. 144, no. 2, 1993, pages 141 - 150, XP008004703 * |
KANTOR A.B. ET AL: "MAGNETIC CELL SORTING WITH COLLOIDAL SUPERPARAMAGNETIC", CELL SEPARATION METHODS AND APPLICATIONS, 1998, CELL SEPARATION METHODS AND APPLICATIONS, pages 153 - 173, XP000908702 * |
KLUCHER K.M.; GERLACH M.J.; DALEY G.Q.: "A novel method to isolate cells with conditional gene expression using fluorescence activated cell sorting (FACS)", NUCLEIC ACIDS RESEARCH, vol. 25, no. 23, 1997, SURREY, GB, pages 4858 - 1048, XP002959483 * |
RUFER N.; HELG C.; CHAPUIS B.; ROOSNEK E.: "Human memory T cells: lessons from stem cell transplantation", TRENDS IN IMMUNOLOGY, vol. 22, no. 3, 1 March 2001 (2001-03-01), pages 136 - 141, XP004255877 * |
See also references of WO0140307A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU1701001A (en) | 2001-06-12 |
WO2001040307A1 (en) | 2001-06-07 |
US6913894B2 (en) | 2005-07-05 |
US20030054415A1 (en) | 2003-03-20 |
WO2001040307A8 (en) | 2002-01-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1244707A1 (en) | Antibodies against signal regulator proteins | |
DE19608769C1 (en) | Monoclonal antibody BV10A4H2 specific for human FLT3/FLK2 receptor | |
DE69433168T2 (en) | IN VITRO PROPAGATION OF STEM CELLS | |
DE19725586C2 (en) | Process for the preparation of cell preparations for immunization by means of heterologous intact bispecific and / or trispecific antibodies | |
DE69434097T2 (en) | APOPTOSIS OF INDUCING MONOCLONAL ANTIBODIES | |
DE60033030T2 (en) | USE OF CD20 DIRECTED ANTIBODIES FOR THE TREATMENT OF GRAFT VERSUS HOST DISEASE | |
EP1483293A2 (en) | Use of an active substance that binds to cd28 for producing a pharmaceutical composition | |
DE69735547T2 (en) | PROCESS FOR INDUCING IMMUNE-UPPRIMATED CELLS AND DEVICE FOR CULTURING THEM | |
EP2313772A1 (en) | Isolation and/or identification of stem cells having adipocytic, chondrocytic and pancreatic differentiation potential | |
EP1600460B1 (en) | Use of an active substance that binds to CD28 for producing a pharmaceutical composition for treatment of B-CLL | |
DE19600589C1 (en) | Antibody A3C6E2 | |
DE19722888A1 (en) | Human CD28 specific monoclonal antibodies for antigen-unspecific activation of T lymphocytes | |
DE10050935A1 (en) | Use of CD28-specific monoclonal antibodies to stimulate blood cells that do not carry CD28 | |
DE3939706C1 (en) | ||
EP0340604A2 (en) | Monoclonal antibody and its use | |
EP1590370A1 (en) | Increase of the immune response by substances influencing the function of natural killer cells | |
DE19727814C1 (en) | Monoclonal antibody specific for human tyrosine kinase receptor protein | |
DE4322570C1 (en) | Stromal cell lines from human bone marrow cells - contain SV-40 DNA with defective origin of replication, useful as feeder cells, for prodn. of growth factors and for gene expression | |
DE69434828T2 (en) | Monoclonal antibodies recognize the Flk-2 receptors, and the isolation of primitive hematopoietic stem cell populations | |
DE3490527C2 (en) | ||
DE10010616A1 (en) | Anti-body against signal regulator proteins | |
DE69917964T2 (en) | Antibodies directed against mast cells of the connective tissues and hybridomas for the production of these antibodies | |
EP2025747A1 (en) | Method for in-vitro amplification of regulatory T-cells | |
EP0863157B1 (en) | Anti-megakaryocyte monoclonal antibody 97A6 | |
AT398437B (en) | METHOD FOR OBTAINING A NEW LIGAND AND METHOD FOR REINFORCING PROLIFERATION OF B CELLS |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20020620 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: CANT, CHARLES Inventor name: ULLRICH, AXEL Inventor name: CHEN, DR. ZHENGJUN Inventor name: BUEHRING, HANS-JOERG |
|
17Q | First examination report despatched |
Effective date: 20040607 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20070110 |