Growth, metabolism and baculovirus production in suspension cultures of an Anticarsia gemmatalis cell line.

Abstract:

:The UFL-AG-286 cell line, established from embryonic tissue of the lepidopteran insect Anticarsia gemmatalis, has been identified as a good candidate to be used as a cellular substrate in the development of a process for in vitro production of the Anticarsia gemmatalis multicapsid nucleopolyhedrovirus, a baculovirus widely used as bioinsecticide. In order to characterize the technological properties of this cell line and evaluate its feasibility to use it for the large-scale production of Anticarsia gemmatalis multicapsid nucleopolyhedrovirus, UFL-AG-286 cells were adapted to grow as agitated suspension cultures in spinner-flasks. Batch suspension cultures of adapted cells in serum-supplemented TC-100 medium grew with a doubling time of about 29 h and reached a maximum cell density higher than 3.5 x 10(6) viable cells ml(-1). At the end of the growth period glucose was completely depleted from the culture medium, but L: -lactate was not produced. Amino acids, with the exception of glutamine, were only negligibly consumed or produced. In contrast to other insect cell lines, UFL-AG-286 cells appeared to be unable to synthesize alanine as a metabolic way to dispose the by-product ammonia. The synchronous infection of suspension cultures with Anticarsia gemmatalis multicapsid nucleopolyhedrovirus in the early to medium exponential growth phase yielded high amounts of both viral progenies per cell and reduced the specific demands of UFL-AG-286 cells for the main nutrients.

journal_name

Cytotechnology

journal_title

Cytotechnology

authors

Gioria VV,Jäger V,Claus JD

doi

10.1007/s10616-006-9042-3

subject

Has Abstract

pub_date

2006-10-01 00:00:00

pages

113-24

issue

2

eissn

0920-9069

issn

1573-0778

journal_volume

52

pub_type

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