title: Susceptibility to AcMNPV and expression of recombinant proteins by a novel cell clone derived from a Trichoplusia ni QAU-BTI-Tn9-4s cell line.
abstract: It is well known that Tn5B1-4 (commercially known as the High Five) cell line is highly susceptible to baculovirus and provides superior production of recombinant proteins when compared to other insect cell lines. But the characteristics of the cell line do not always remain stable and may change upon continuous passage. Recently an alphanodavirus, named Tn5 Cell Line Virus (or TNCL Virus), was identified in High Five cells in particular. Therefore, we established a new cell line, QB-Tn9-4s, from Trichoplusia ni, which was determined to be free of TNCL virus by RT-PCR analysis. In this paper, we describe the development of a novel cell clone, QB-CL-B, from a low passage QB-Tn9-4s cell line and report its susceptibility to AcMNPV, and the level of recombinant protein production. This cell clone was similar to its parental cells QB-Tn9-4s and Tn5B1-4 cells in morphology and growth rate; although it also showed approximately the same responses to AcMNPV infection and production of occlusion bodies, there were higher levels of recombinant protein production in comparison to QB-Tn9-4s (parental cells) and High5 cells.
authors: A Center for Advanced Invertebrate Cell Engineering Collaborated Between Boyce Thompson Institute, China.
authors: Ming
authors: M
authors: Shan
authors: Shi-Ying
authors: SY
authors: Zhang
authors: Lei
authors: L
authors: Jiang
authors: Ming
authors: M
authors: Ma
authors: Guo-Xun
authors: GX
authors: Li
mesh_terms: D000818:Animals; D016367:Baculoviridae / Q000254:growth & development*; D018929:Cell Culture Techniques; D002460:Cell Line; D005822:Genetic Vectors; D007915:Lepidoptera; D011994:Recombinant Proteins / Q000235:genetics* / Q000378:metabolism*
chemical_list: D011994:Recombinant Proteins