ABSTRACT
Objective To isolate and culture the spontaneous ascites cells from Microtus fortis under artificial conditions, so as to investigate the molecular mechanism at the cell level. Methods The cells were isolated from spontaneous ascites of M. fortis artificially bred for 90 d,and were cultured and observed under a microscope. The differences of ascites cells among nor?mal,spontaneous ascites and schistosomiasis infected samples of M. fortis were compared. The lesion of tissue was observed si?multaneously. Results There were no obvious organ tissue lesions in M. fortis with spontaneous ascites,and the number and types of cells in peritoneal fluid were irregular and significantly changed. With the extension of culture time ,the colonies ap?peared and there were a large number of vacuole?like cells in the cultured medium and sequentially presenting proliferation ,de?formation,disintegration and the fiber?like changes and could be passaged 3-4 d only. Conclusion The cells from M. fortis with spontaneous ascites are similar to its abdominal cavity cells after infection of Schistosoma japonica.
ABSTRACT
An effective method has been developed for laboratory scale production of IgG. Hybridomas were cultured in serum-free media with 2% IgG-free ascites. Cell density of up to 3.55 × 10 6cells/ml and antibody concentration of 135μ g/ml after purification were abtained, which is four time more than total production of that of IgG concentration in serum-free media. This in vitro method allows great improvement in antibodies production in batch tissue culture. The method reported here is easy to handle and is economical and universally adaptable.
ABSTRACT
An effective method has been developed for laboratory scale production of IgG. Hybridomas were cultured in serum-free media with 2% IgG-free ascites. Cell density of up to 3.55 × 10 6cells/ml and antibody concentration of 135μ g/ml after purification were abtained, which is four time more than total production of that of IgG concentration in serum-free media. This in vitro method allows great improvement in antibodies production in batch tissue culture. The method reported here is easy to handle and is economical and universally adaptable.
ABSTRACT
An effective method has been developed for laboratory scale production of IgG. Hybridomas were cultured in serum-free media with 2% IgG-free ascites. Cell density of up to 3.55 × 10 6cells/ml and antibody concentration of 135μ g/ml after purification were abtained, which is four time more than total production of that of IgG concentration in serum-free media. This in vitro method allows great improvement in antibodies production in batch tissue culture. The method reported here is easy to handle and is economical and universally adaptable.