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en Development of Human Recombinant Antibodies Against ROR1 Tumor Antigen ایمنی شناسی Immunology مقالات اصلی Original Article <div style="text-align: justify;">Background: Receptor tyrosine kinase-like orphan receptor 1 (ROR1) is an oncofetal antigen expressed on many types of cancer cells, but not normal adult cells. ROR1 antigen contributes to cancer development and progression by several signaling pathways. ROR1 expression has been associated with tumor growth, survival, and metastasis. In this study specific human recombinant antibodies were selected against ROR1 antigen for their use in cancer immunotherapy. Methods: Phage display technology was used to produce phage antibody from a human scFv library. Phage concentration was determined to confirm the phage rescue process. Panning procedure was performed to isolate specific scFv clones against ROR1 epitope. Phage ELISA was done to evaluate the reactivity of the selected scFvs. Results: Two specific human scFvs with frequencies of 20% and 25% were selected against ROR1 peptide. The antibodies showed specific reaction to the corresponding epitopes in phage ELISA.  Conclusions: Cancer targeted therapy using human specific antibodies is a new strategy, which is used in cancer therapy. The selected specific scFvs that target ROR1 epitope are human antibodies that originated from a human library and have the potential to be used in clinic in cancer immunotherapy of ROR1 positive tumors without induction of human anti mouse antibody (HAMA) response.</div> ROR1, Phage display, scFV library, Cancer. 282 288 http://rbmb.net/browse.php?a_code=A-10-57-6&slc_lang=en&sid=1 Peyman Bemani 100319475328460012217 100319475328460012217 Yes Recombinant antibody laboratory, Department of Immunology, Shiraz University of Medical Sciences, Shiraz Iran Setareh Moazen 100319475328460012218 100319475328460012218 No Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver BC, Canada. Elham Nadimi 100319475328460012219 100319475328460012219 No Recombinant antibody laboratory, Department of Immunology, Shiraz University of Medical Sciences, Shiraz Iran Foroogh Nejatollahi fnejatollaf@sums.ac.ir. 100319475328460012220 100319475328460012220 No Recombinant antibody laboratory, Department of Immunology, Shiraz University of Medical Sciences, Shiraz Iran