Research Core Services
The Lerner Research Institute's Core Services seek to facilitate and advance research throughout Cleveland Clinic by providing technologies that support basic, translational, and clinical research.
Peptide conjugation to KLH by a glutaraldehyde protocol.
Limiting dilution cloning of five chosen hybridoma cell lines. Collection of media samples for screening by the investigator. Minimal scale up and preparation of frozen stocks (5 vials) of clones are completed by HCF. Includes labor and supplies. This phase goes 4-8 weeks.Freezing Cells Cells from culture expansion associated with mAb production can be frozen down for storage in Liq N2. The freezing media is 90% FBS:10% DMSO and the cells are at a concentration of 2-4 x 106 cells/ml.
We can perform antigen-capture or sandwich type ELISAs to measure antibody levels in tissue culture supernatant.
The Core will freeze back hybridomas in freezing media from actively growing cells.
Fusion of cells
Fusion of spleen cells from chosen mouse to myeloma cell line. Plating of fused cells and collection of media samples for screening by the investigator. Includes labor and supplies. This phase goes 4-6 weeks.
Integra Culture System
For production of mAb from cell lines This system is intended for production of 30-60mg of mAb per month in the smaller system and 100-200mg of mAb in the larger system. Ave. concentration is 1.5mg/ml. The production schedule ave. is 8 weeks.
Large-scale Antibody Production
The Hybridoma Core uses a static cell culture system the Integra Flask to produce high concentration (>.5mg/ml) monoclonal antibodies. This can be done in serum-free or using ultra-low IgG/IgM serum. Yields can be as high as 100mg/month/flask.
Large-scale antibody purification
We can purify up to 80mg of IgG from one sample using a protein G column.
Liquid Nitrogen Storage of cells
Storage for cloned cell lines. The stored cell lines must be mycoplasma free.
We will perform intraperitoneal injections of antigen into mice to elicit an immune response for the production of monoclonal antiodies.
Polyclonal Antibody Production
This service will be offered on a limited basis depending on available housing. One rabbit per antigen. Includes animal purchase and board, 6 injections, 1 test bleed, 3 production collections, final bleed and labor for 90 days. Time course can be extended for additional fee based on animal board and labor charges. The goal is to provide a total of 100mls of serum, but this is not guaranteed. Allow 1-2 weeks for animals to arrive.
Rabbit ATG serum or rabbit anti-thymocyte globulin (ATG)
We reliably produce anti-thymocyte globulin in rabbits using a proprietary method of mouse thymocyte antigen preparation.
(This serum is for research purposes only).
We can purify monoclonal or polyclonal antibodies using Protein G or an epitope specific affinity column.
We will run the SDS PAGE gel, transfer and detect using investigator provided primary antibody plus ECL reagent.
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