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Codon optimization, expression, purification, and functional characterization of recombinant human IL-25 in Pichia pastoris.
- Source :
- Applied Microbiology & Biotechnology; Dec2013, Vol. 97 Issue 24, p10349-10358, 10p
- Publication Year :
- 2013
-
Abstract
- Interleukin (IL)-25 (also known as IL-17E) is a distinct member of the IL-17 cytokine family which induces IL-4, IL-5, and IL-13 expression and promotes pathogenic T helper (Th)-2 cell responses in various organs. IL-25 has been shown to have crucial role between innate and adaptive immunity and also a key component of the protection of gastrointestinal helminthes. In this study, to produce bioactive recombinant human IL-25 (rhIL-25), the cDNA of mature IL-25 was performed codon optimization based on methylotropic yeast Pichia pastoris codon bias and cloned into the expression vector pPICZαA. The recombinant vector was transformed into P. pichia strain X-33 and selected by zeocin resistance. Benchtop fermentation and simple purification strategy were established to purify the rhIL-25 with about 17 kDa molecular mass. Functional analysis showed that purified rhIL-25 specifically bond to receptor IL-17BR and induce G-CSF production in vitro. Further annexin V-FITC/PI staining assay indicated that rhIL-25 induced apoptosis in two breast cancer cells, MDA-MB-231 and HBL-100. This study provides a new strategy for the large-scale production of bioactive IL-25 for biological and therapeutic applications. [ABSTRACT FROM AUTHOR]
- Subjects :
- PICHIA pastoris
INTERLEUKIN-17
GENETIC code
GENETIC vectors
FERMENTATION
APOPTOSIS
Subjects
Details
- Language :
- English
- ISSN :
- 01757598
- Volume :
- 97
- Issue :
- 24
- Database :
- Complementary Index
- Journal :
- Applied Microbiology & Biotechnology
- Publication Type :
- Academic Journal
- Accession number :
- 95661150
- Full Text :
- https://doi.org/10.1007/s00253-013-5264-4