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oai:gredos.usal.es:10366/1693042026-01-27T01:04:17Zcom_10366_4019com_10366_3947com_10366_3946com_10366_3823col_10366_4020
Gestión del Repositorio Documental de la Universidad de Salamanca author Kumar, Ashok author Rodríguez Caballero, María Arantzazu author Plieva, Fatima M author Galaev, Igor Yu author Nandakumar, Kutty Selva author Kamihira, Masamichi author Holmdahl, Rikard author Orfao de Matos Correia e Vale, José Alberto author Mattiasson, Bo 2026-01-26T12:52:49Z 2026-01-26T12:52:49Z 2005-01 Kumar A and Rodriguez-Caballero A et al. Affinity binding of cells to cryogel adsorbents with immobilized specific ligands: effect of ligand coupling and matrix architecture. J Mol Recognit . 2005 Jan-Feb;18(1):84-93. 0952-3499 http://hdl.handle.net/10366/169304 10.1002/jmr.693 15386616 [EN]The capture of human acute myeloid leukemia KG-1 cells expressing the CD34 surface antigen and the fractionation of human blood lymphocytes were evaluated on polyvinyl alcohol (PVA)-cryogel beads and dimethyl acrylamide (DMAAm) monolithic cryogel with immobilized protein A. The affinity ligand (protein A) was chemically coupled to the reactive PVA-cryogel beads and epoxy-derivatized monolithic cryogels through different immobilization techniques and the binding efficiency of the cell surface receptors specific antibody-labeled cells to the gels/beads was determined. The binding of cells to monolithic cryogel was higher (90-95%) compared with cryogel beads (76%). B-lymphocytes, which bound to the protein A-cryogel beads, were separated from T-lymphocytes with yields for the two cell types 74 and 85%, respectively. About 91% of the bound B-cells could be recovered without significantly impairing their viability. Our results show differences in the percentage of cell-binding to the immunosorbents caused by ligand density, flow shear forces and bond strength between the cells and the affinity surface once distinct chemical coupling of protein A, size of beads, sequence of antibody binding to protein A adsorbents, morphology and geometry of surface matrices were compared. eng Attribution-NonCommercial-NoDerivatives 4.0 Internacional PVA cryogel beads Cell separation Supermacroporous monolithic cryogel Protein A cell affinity CD34þ cells Lymphocyte fractionation Ligand immobilization Affinity binding of cells to cryogel adsorbents with immobilized specific ligands: effect of ligand coupling and matrix architecture info:eu-repo/semantics/article TElDRU5DSUEgREUgREVSRUNIT1MgREUgQVVUT1IgTk8gRVhDTFVTSVZBCgpQYXJhIHF1ZSBlbCBSZXBvc2l0b3JpbyBkZSBsYSBVbml2ZXJzaWRhZCBkZSBTYWxhbWFuY2EgcHVlZGEgcmVwcm9kdWNpciB5IGNvbXVuaWNhciBww7pibGljYW1lbnRlIHN1IGRvY3VtZW50byAobWVkaWFudGUgc3UgcHVlc3RhIGEgZGlzdHJpYnVjacOzbiBlbiBlbCBwcm9waW8gcmVwb3NpdG9yaW8pIGVzIG5lY2VzYXJpbyBsYSBhY2VwdGFjacOzbiBkZSB1bmEgc2VyaWUgZGUgdMOpcm1pbm9zLiBMYXMgY29uZGljaW9uZXMgZGUgbGEgbGljZW5jaWEgbm8gZXhjbHVzaXZhIHF1ZSBsb3MgYXV0b3JlcyBkZWJlbiBhY2VwdGFyIGFsIGhhY2VyIGF1dG9hcmNoaXZvIGVuIEdSRURPUyBzb24gbGFzIHNpZ3VpZW50ZXM6CgoxLiBBY2VwdGFuZG8gZXN0YSBsaWNlbmNpYSwgdXN0ZWQgLCBlbC9sYSBhdXRvci9hIGdhcmFudGl6YSBhIGxhIFVuaXZlcnNpZGFkIGRlIFNhbGFtYW5jYSBlbCBkZXJlY2hvIG5vIGV4Y2x1c2l2byBkZSBhcmNoaXZhciwgcmVwcm9kdWNpciwgY29udmVydGlyIChjb21vIHNlIGRlZmluZSBtw6FzIGFiYWpvKSB5IGNvbXVuaWNhciBzdSBkb2N1bWVudG8gbXVuZGlhbG1lbnRlIGVuIGZvcm1hdG8gZWxlY3Ryw7NuaWNvLgoKMi4gRWwgYXV0b3IgYWNlcHRhIHF1ZSBsYSBVbml2ZXJzaWRhZCBkZSBTYWxhbWFuY2EgcHVlZGEgY29uc2VydmFyIG3DoXMgZGUgdW5hIGNvcGlhIGRlIGVzdGUgZG9jdW1lbnRvIHksIHNpbiBhbHRlcmFyIHN1IGNvbnRlbmlkbywgY29udmVydGlybG8gYSBjdWFscXVpZXIgZm9ybWF0byBkZSBmaWNoZXJvLCBtZWRpbyBvIHNvcG9ydGUsIHBhcmEgcHJvcMOzc2l0b3MgZGUgc2VndXJpZGFkLCBwcmVzZXJ2YWNpw7NuIHkgYWNjZXNvLgoKMy4gRWwgZGVwb3NpdGFyaW8gZGVjbGFyYSBxdWUgZWwgZG9jdW1lbnRvIGVzIHVuIHRyYWJham8gb3JpZ2luYWwgc3V5byB5L28gcXVlIHRpZW5lIGVsIGRlcmVjaG8gcGFyYSBvdG9yZ2FyIGxvcyBkZXJlY2hvcyBjb250ZW5pZG9zIGVuIGVzdGEgbGljZW5jaWEuIFRhbWJpw6luIGRlY2xhcmEgcXVlIHN1IGRvY3VtZW50byBubyBpbmZyaW5nZSwgZW4gdGFudG8gZW4gY3VhbnRvIGxlIHNlYSBwb3NpYmxlIHNhYmVyLCBsb3MgZGVyZWNob3MgZGUgYXV0b3IgZGUgbmluZ3VuYSBvdHJhIHBlcnNvbmEgbyBlbnRpZGFkLgoKNC4gU2kgZWwgZG9jdW1lbnRvIGNvbnRpZW5lIG1hdGVyaWFsZXMgZGUgbG9zIGN1YWxlcyBubyB0aWVuZSBsb3MgZGVyZWNob3MgZGUgYXV0b3IsIGRlY2xhcmEgcXVlIGhhIG9idGVuaWRvIGVsIHBlcm1pc28gc2luIHJlc3RyaWNjacOzbiBkZWwgcHJvcGlldGFyaW8gZGUgbG9zIGRlcmVjaG9zIGRlIGF1dG9yIHBhcmEgb3RvcmdhciBhIGxhIFVuaXZlcnNpZGFkIGRlIFNhbGFtYW5jYSBsb3MgZGVyZWNob3MgcmVxdWVyaWRvcyBwb3IgZXN0YSBsaWNlbmNpYSwgeSBxdWUgZXNlIG1hdGVyaWFsIGN1eW9zIGRlcmVjaG9zIHNvbiBkZSB0ZXJjZXJvcyBlc3TDoSBjbGFyYW1lbnRlIGlkZW50aWZpY2FkbyB5IHJlY29ub2NpZG8gZW4gZWwgdGV4dG8gbyBjb250ZW5pZG8gZGVsIGRvY3VtZW50byBlbnRyZWdhZG8uCgo1LiBTaSBlbCBkb2N1bWVudG8gc2UgYmFzYSBlbiB1bmEgb2JyYSBxdWUgaGEgc2lkbyBwYXRyb2NpbmFkYSBvIGFwb3lhZGEgcG9yIHVuYSBhZ2VuY2lhIHUgb3JnYW5pemFjacOzbiBkaWZlcmVudGUgZGUgbGEgVW5pdmVyc2lkYWQgZGUgU2FsYW1hbmNhLCBzZSBwcmVzdXBvbmUgcXVlIHNlIGhhIGN1bXBsaWRvIGNvbiBjdWFscXVpZXIgZGVyZWNobyBkZSByZXZpc2nDs24gdSBvdHJhcyBvYmxpZ2FjaW9uZXMgcmVxdWVyaWRhcyBwb3IgZXN0ZSBjb250cmF0byBvIGFjdWVyZG8uCgo2LiBMYSBVbml2ZXJzaWRhZCBkZSBTYWxhbWFuY2EgaWRlbnRpZmljYXLDoSBjbGFyYW1lbnRlIHN1L3Mgbm9tYnJlL3MgY29tbyBlbC9sb3MgYXV0b3IvZXMgbyB0aXR1bGFyL2VzIGRlIGxvcyBkZXJlY2hvcyBkZWwgZG9jdW1lbnRvLCB5IG5vIGhhcsOhIG5pbmd1bmEgYWx0ZXJhY2nDs24gZGUgc3UgZG9jdW1lbnRvIGRpZmVyZW50ZSBhIGxhcyBwZXJtaXRpZGFzIGVuIGVzdGEgbGljZW5jaWEuIAoKU2kgZXN0YXMgY29uZGljaW9uZXMgbm8gc29uIGFjZXB0YWRhcyBwb3IgZWwgYXV0b3IsIG5vIGVzIHBvc2libGUgZGVwb3NpdGFyIG5pbmfDum4gZG9jdW1lbnRvLgoKU2kgdW4gYXV0b3IgZXN0w6EgaW50ZXJlc2FkbyBlbiBtb2RpZmljYXIgdW4gdHJhYmFqbyBxdWUgaGF5YSBzaWRvIGRlcG9zaXRhZG8gZW4gR1JFRE9TLCBkZWJlIHBvbmVyc2UgZW4gY29udGFjdG8gY29uIGxvcyBhZG1pbmlzdHJhZG9yZXMgZGUgR1JFRE9TIChyZXBvc2l0b3Jpb0B1c2FsLmVzKS4K URL https://gredos.usal.es/bitstream/10366/169304/1/kumar2004.pdf File MD5 a652931b030f2d90ed3d92e19f148b07 311237 application/pdf kumar2004.pdf URL https://gredos.usal.es/bitstream/10366/169304/4/kumar2004.pdf.txt File MD5 241a72669ffb4e066707a1a2ec6af9bd 54214 text/plain kumar2004.pdf.txt