Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2011 Apr 1;54(3):324–329. doi: 10.1016/j.cyto.2010.12.002

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2010 Published by Elsevier Ltd.

Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

PMC Copyright notice

Fig. 2 — Effect of passaging and G418 on PoIFN-β production by CHO-PoIFN-β cells. CHO-PoIFN-β cells were passaged every 3 or 4 days in 25-cm² flasks with or without the pressure of G418. Culture supernatants were collected at the time of passaging and assayed for antiviral activity. ^∗Statistics analysis showed that the difference is not significant (P > 0.05).