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Ascites Antibody Production & Purification

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In Vivo Monoclonal Antibody Production via Mouse Ascites (6-8 Weeks)

  • All incoming cell lines require mycoplasma testing
  • IFA primed mice are injected with a hybridoma cell line
  • BALB/c, BALB/c hybrid, Nude and SCID mice are available; additional strains available upon request
  • Ascites fluid develops over the next 10-14 days and  is harvested over multiple taps
  • Antibody concentration typically increases with each successive tap
  • Ascites is pooled, centrifuged, and gauze filtered
  • An average yield from BALB/c mice is 3-5mLs of ascites per mouse with an average antibody concentration of 3-5mg/mL

Production Services Include:

  • Expansion and cryopreservation of a hybridoma cell line to 5 vials
  • Aggregate filtration of the pooled ascites
  • Testing of ascites for protein content, Ig concentration
  • Storage of ascites at -20C
  • GMP production report including copies of zonal electrophoresis and densitometry scans

Fill out an Ascites Production Service Request form

Antibody Purification Services (1-2 weeks)

  • Murine Monoclonal IgGs are purified by Protein A affinity chromatography, eluting by pH gradient to ensure gentlest conditions possible (read more)
  • Concentration/dialysis to desired final buffer
  • Testing of purified antibody for protein content, Ig concentration
  • Sterile filtration of final product
  • Addition of NaN3 upon request

Additional Services Include:

  • Percent purity is determined by Size Exclusion Chromatography allowing differentiation between monomeric, dimerized, aggregated and fragmented antibody
  • IsoElectric point determination  to reveal isoforms or variants in the purified material

 

In Vitro Production

Roller Bottle Productions or Spinner Flasks

  • Cultures are grown to a specific viability and then harvested for optimal cell or cell product preparation.
  • Production sizes range from 1.0L to 100.0L
  • GMP production report and copy of zonal electrophoresis
  • Expansion and cryopreservation of cell lines to 5 vials

 

Antibody Purification Services (1-2 weeks)

  • Murine Monoclonal IgGs are purified by Protein A affinity chromatography, eluting by pH gradient to ensure gentlest conditions possible (read more)
  • Concentration/dialysis to desired final buffer
  • Testing of purified antibody for protein content, Ig concentration
  • Sterile filtration of final product
  • Addition of NaN3 upon request

Additional Services Include:

  • Percent purity is determined by Size Exclusion Chromatography allowing differentiation between monomeric, dimerized, aggregated and fragmented antibody,
  • IsoElectric point determination  to reveal isoforms or variants in the purified material.