Objective
TO GENERATE CELL LINES PRODUCING IGA MONOCLONAL ANTIBODIES AT HIGH LEVEL, IN ORDER TO STUDY THE PROTECTIVE MECHANISMS OF MUCOSA AGAINST INFECTIONS, AND TO PRODUCE VERY EFFICIENT ANTIBODIES FOR THE THERAPY OF INTESTINAL INFECTIONS.
The aim of the project was to develop techniques to stimulate the appearance in pig gut of immunoglobulin A (IgA) producing cells and then to identify, isolate and purify them for in vitro immortalisation. Mouse monoclonal antibodies were prepared to markers of the pig immune response and used to monitor mucosal IgA responses, stimulated with live and live attenuated transmissible gastroenteritis virus (TGEV), recombinant Escherichia coli and proteins adjuvanted with cholera toxin. Techniques to isolate immune cells from the gut and gut associated lymphoid tissue were developed and these cells were subfractionated by panning using activated plastics. An in vitro technique to study the kinetics of the mucosal IgA response was developed and used to idenfity the optimum time for the isolation of IgA producing cells. Attempts to immortalise these cells by retrovirus transformation using a variety of techniques were not successful. Recently, we were able to fuse mouse myeloma cells with mesenteric lymph node cells isolated from TGEV injected pigs, and showed that these cells produce IgA anti-TGEV antibodies.
VERY FEW HYBRIDOMAS OBTAINED BY STANDARD IMMUNIZATION PROCEDURE PRODUCE IGA. IT WOULD BE USEFUL TO OBTAIN IGA REACTING HYBRIDOMAS IN PIGS TO STUDY PROTECTIVE MECHANISMS AGAINST VIRAL AND BACTERIAL DISEASES OF MUCOSAL SURFACES, AND ALSO TO DESIGN A NEW SIMPLE METHOD TO CONSTRUCT HYBRIDOMAS AND TO OBTAIN ANTIBODIES OF HIGH THERAPEUTIC VALUE TO CURE INTESTINAL INFECTION IN THE YOUNG ANIMAL :
THE OBJECTIVE OF THE PROJECT ARE :
1) STIMULATE IGA PRODUCING CELLS BY APPROPRIATE VACCINATION PROCEDURE (ANTIGENS : TRANSMISSIBLE GASTRO ENTERITIS VIRUS AND E. COLI).
2) OBTAIN PIG CELL LINES ABLE TO FUSE WITH LYMPHOCYTES.
3) TRANSFORM ISOLATED B CELLS INTO PERMANENT LINES BY FUSION WITH TRANSFORMED PIG CELLS.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- medical and health sciences basic medicine immunology immunisation
- natural sciences biological sciences microbiology virology
- natural sciences biological sciences biochemistry biomolecules proteins
- medical and health sciences clinical medicine gastroenterology
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
BS18 7DY Bristol
United Kingdom
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.