Abstract: A method of treating triple negative breast cancer in a subject comprising administering to the subject a therapeutically effective amount of a combination of at least two anti epidermal growth factor receptor (EGF-R) antibodies exhibiting binding to different epitopes on the EGF-R, thereby treating triple negative breast cancer.

Abstract: An article-of-manufacture is provided. The article-of-manufacture comprises a packaging material identified for treating cancer, packaging: (i) an anti-EGFR antibody comprising the CDR sequences of anti EGFR 565 (CNCM Deposit Number I-4262); and (ii) an anti-ErbB-2 antibody comprising the CDR sequences of anti ErbB-2 L431 (CNCM Deposit Number I-4115), anti ErbB-2 L26 (CNCM Deposit Number I-4113) or anti ErbB-2 N12 (CNCM Deposit Number I-4112), or (iii) an anti-EGFR antibody comprising the CDR sequences of anti EGFR 111 (CNCM Deposit Number I-4261); and (iv) an anti-ErbB-2 antibody comprising the CDR sequences of anti ErbB-2 L431 (CNCM Deposit Number I-4115). Also provided are pharmaceutical compositions and methods of using the above antibodies as well as other antibody combinations for the treatment of cancer.

Abstract: A method of identifying a combination of antibodies with a combined improved anti-tumor activity is provided. The method comprising: (a) identifying binding epitopes of anti ErbB-2 antibodies; and (b) selecting a combination of at least two antibodies of the anti ErbB-2 antibodies exhibiting binding to different epitopes on the ErbB-2, at least one of the different epitopes being localized to a dimerization site of the ErbB-2, the combination of antibodies being with the combined improved anti-tumor activity. Also provided are novel antibody combinations uncovered according to the present teachings.

Abstract: A method of treating a ductal carcinoma in situ (DCIS) lesion in a subject in need thereof is disclosed. The method comprises administering to the subject a therapeutically effective amount of a first agent capable of down-regulating activity and/or expression of at least one component participating in a NOTCH pathway, and a second agent capable of down-regulating an activity and/or expression of HER2, thereby treating the DCIS lesion.

Abstract: A method of identifying a combination of antibodies with a combined improved anti-tumor activity is provided. The method comprising: (a) identifying binding epitopes of anti ErbB-2 antibodies; and (b) selecting a combination of at least two antibodies of the anti ErbB-2 antibodies exhibiting binding to different epitopes on the ErbB-2, at least one of the different epitopes being localized to a dimerization site of the ErbB-2, the combination of antibodies being with the combined improved anti-tumor activity. Also provided are novel antibody combinations uncovered according to the present teachings.

Abstract: An article-of-manufacture is provided. The article-of-manufacture comprises a packaging material identified for treating cancer, packaging: (i) an anti-EGFR antibody comprising the CDR sequences of anti EGFR 565 (CNCM Deposit Number I-4262); and (ii) an anti-ErbB-2 antibody comprising the CDR sequences of anti ErbB-2 L431 (CNCM Deposit Number I-4115), anti ErbB-2 L26 (CNCM Deposit Number I-4113) or anti ErbB-2 N12 (CNCM Deposit Number I-4112), or (iii) an anti-EGFR antibody comprising the CDR sequences of anti EGFR 111 (CNCM Deposit Number I-4261); and (iv) an anti-ErbB-2 antibody comprising the CDR sequences of anti ErbB-2 L431 (CNCM Deposit Number I-4115). Also provided are pharmaceutical compositions and methods of using the above antibodies as well as other antibody combinations for the treatment of cancer.

Abstract: A method of selecting a target for treatment of a hyperproliferative disease in a subject in need thereof is disclosed. The method comprising analyzing an amount and/or activity of at least one ErbB ligand in a biological sample from the subject, wherein an ErbB ligand which shows an up-regulated amount and/or activity compared to a non-hyperproliferative cell or tissue above a predetermined level is selected as a target for treatment of the hyperproliferative disease. Methods of treating hyperproliferative diseases, monoclonal antibodies and pharmaceutical compositions are also disclosed.

Abstract: The present invention provides for isolated polypeptides capable of binding ErbB-4.

Abstract: A method of identifying a combination of antibodies with a combined improved anti tumor activity is provided. The method comprising identifying at least two anti RTK antibodies capable of inducing synergistic endocytosis of the RTK in a cell expressing the RTK, thereby identifying the combination of antibodies with the combined improved anti-tumor activity.

Abstract: The present invention provides for isolated polypeptides capable of binding ErbB-4.

Abstract: A method of identifying a combination of antibodies with a combined improved anti-tumor activity is provided. The method comprising: (a) identifying binding epitopes of anti ErbB-2 antibodies; and (b) selecting a combination of at least two antibodies of the anti ErbB-2 antibodies exhibiting binding to different epitopes on the ErbB-2, at least one of the different epitopes being localized to a dimerization site of the ErbB-2, the combination of antibodies being with the combined improved anti-tumor activity. Also provided are novel antibody combinations uncovered according to the present teachings.

Abstract: A method of identifying a combination of antibodies with a combined improved anti tumor activity is provided. The method comprising identifying at least two anti RTK antibodies capable of inducing synergistic endocytosis of the RTK in a cell expressing the RTK, thereby identifying the combination of antibodies with the combined improved anti-tumor activity.

Abstract: A method of diagnosing a disease or syndrome associated with disregulation of Neuregulin-4 (NRG-4), Aa novel ErbB-4 ligand, referred to herein as Neuregulin-4 (NRG-4)in a subject is disclosed. The method comprising: (a) obtaining a sample from a subject; (b) incubating the sample with at least one oligonucleotide or oligonucleotide analog of at least bases, said oligonucleotide or oligonucleotide analog capable of hybridizing to a portion of a polynucleotide strand encoding NRG-4 to thereby diagnosing the disease, condition or syndrome associated with disregulation of NRG-4.

Abstract: A method of identifying a combination of antibodies with a combined improved anti tumor activity is provided. The method comprising identifying at least two anti RTK antibodies capable of inducing synergistic endocytosis of the RTK in a cell expressing the RTK, thereby identifying the combination of antibodies with the combined improved anti-tumor activity.

Abstract: A method of identifying a combination of antibodies with a combined improved anti tumor activity is provided. The method comprising identifying at least two anti RTK antibodies capable of inducing synergistic endocytosis of the RTK in a cell expressing the RTK, thereby identifying the combination of antibodies with the combined improved anti-tumor activity.

Abstract: A method of identifying a combination of antibodies with a combined improved anti tumor activity is provided. The method comprising identifying at least two anti RTK antibodies capable of inducing synergistic endocytosis of the RTK in a cell expressing the RTK, thereby identifying the combination of antibodies with the combined improved anti-tumor activity.

Abstract: An isolated polynucleotide is provided. The isolated polynucleotide encodes a polypeptide having a sequence of at least 10 and no more than 500 amino acids, wherein said sequence is derived from the amino acid sequences of SEQ ID NO: 2, 4 or 6. Also provided are compositions and methods using same for treating Tsg101 associated diseases.

Abstract: A novel ErbB-4 ligand, referred to herein as Neuregulin-4 (NRG-4) is disclosed as well as polynucleotide sequences encoding NRG-4, oligonucleotides and oligonucleotide analogs derived from polynucleotide sequences, a display library displaying short peptides derived from NRG-4, antibodies recognizing NRG-4, peptides or peptide analogs derived from NRG-4, and pharmaceutical compositions and methods of employing peptides or peptide analogs, oligonucleotides and oligonucleotide analogs, and/or polynucleotide sequences to up-regulate or down-regulate ErbB-4 receptor activity (signaling).

Abstract: A novel ErbB-4 ligand, referred to herein as Neuregulin-4 (NRG-4) is disclosed as well as polynucleotide sequences encoding NRG-4, oligonucleotides and oligonucleotide analogs derived from polynucleotide sequences, a display library displaying short peptides derived from NRG-4, antibodies recognizing NRG-4, peptides or peptide analogs derived from NRG-4, and pharmaceutical compositions and methods of employing peptides or peptide analogs, oligonucleotides and oligonucleotide analogs, and/or polynucleotide sequences to up-regulate or down-regulate ErbB-4 receptor activity (signaling).

Abstract: A novel ErbB-4 ligand, referred to herein as Neuregulin-4 (NRG-4) is disclosed as well as polynucleotide sequences encoding NRG-4, oligonucleotides and oligonucleotide analogs derived from polynucleotide sequences, a display library displaying short peptides derived from NRG-4, antibodies recognizing NRG-4, peptides or peptide analogs derived from NRG-4, and pharmaceutical compositions and methods of employing peptides or peptide analogs, oligonucleotides and oligonucleotide analogs, and/or polynucleotide sequences to up-regulate or down-regulate ErbB-4 receptor activity (signaling).