Cat kidney cell line F-81 S adaptive to full suspension cultivation, and applications thereof
A cat kidney cell, F-81S technology, applied in urinary tract/kidney cells, animal cells, vertebrate cells, etc., can solve the problems of limited large-scale application, limited increase in cell density, and inability to maximize growth, etc. Achieve good industrial application prospects, solve the requirements of large-scale industrialization, and achieve the effect of high degree of automation
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0027] Embodiment 1: Adapt to the expansion culture of the whole suspension culture F-81S cell line
[0028] The F-81S cells that were preserved in the China Typical Culture Collection Center with the preservation number: CCTCC C201799 were revived and subcultured for full suspension culture, and then inoculated into a bioreactor for suspension culture to obtain F-81S cell suspension culture fluid. Proceed as follows:
[0029] ①Take the F-81S cell line frozen in liquid nitrogen, quickly melt it, add it to a shaker flask filled with nutrient solution, culture it at 36-37°C for 60-72 hours, and subculture and enlarge it according to the ratio of 1:3-1:5;
[0030] ② Dilute the F-81S cell line amplified in step ① to a density of 5-10×105 cells / ml, and inoculate it into a bioreactor. The culture temperature is 36-37°C, the pH value is 6.8-7.2, and the dissolved oxygen is 40%-60%, the F-81S cell suspension growth curve is as follows figure 1 shown;
[0031] ③Determination of cell...
Embodiment 2
[0033] Embodiment 2: The method for cultivating canine parvovirus by using bioreactor suspension culture cells
[0034] Cultivate and expand suspension F-81S cells in shake flasks, press 6.5×10 5 cells / ml density, inoculated into the bioreactor, the cell culture conditions are: the working volume of the reactor is 5 liters, the cell culture temperature is 37 ℃, the pH value is 7.0, the dissolved oxygen is 50%, the culture is 72 hours, and the cell density is 44.7 ×10 5 per ml, replace it with virus culture maintenance medium containing 2.0% newborn bovine serum, and inoculate canine parvovirus according to 5% of the volume of virus culture maintenance medium. The virus culture conditions are: temperature 36°C, pH value 7.0, dissolved Oxygen is 45%, and the virus liquid is harvested after 72 hours of cultivation. The virus titer is judged according to the "Regulations of Veterinary Biological Products of the People's Republic of China", and the harvested virus content is 6.5 T...
Embodiment 3
[0035] Embodiment 3: Utilize the method for cultivating feline panleukopenia virus by suspension culture cell of bioreactor
[0036] The F-81S cell suspension culture method is the same as in Example 2. When cultivating for 72 hours, the cell growth medium is replaced with a virus culture maintenance medium. The virus culture conditions are appropriately adjusted according to the difference of the inoculated virus in the specific examples. With reference to Table 2, all viruses The determination of the titer was carried out according to the routine test method, and the test results are shown in Table 2.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com