SHUAI LIU¹, JIANZHONG XU^1,*, TINGSHAN LIU¹, ZHIMING RAO², WEIGUO ZHANG^1,*

BIOCELL, Vol.46, No.10, pp. 2303-2313, 2022, DOI:10.32604/biocell.2022.020899 - 13 June 2022

Abstract In this study, phosphoenolpyruvate and erythrose-4-phosphate are efficiently supplied by collaborative design of Embden-Meyerhof-Parnas (EMP) pathway and pentose phosphate (PP) pathway in Escherichia coli, thus increasing the L-tryptophan production. Firstly, the effects of disrupting EMP pathway on L-tryptophan production were studied, and the results indicated that the strain with deletion of phosphofructokinase A (i.e., E. coli JW-5 ΔpfkA) produced 23.4 ± 2.1 g/L of L-tryptophan production. However, deletion of phosphofructokinase A and glucosephosphate isomerase is not conducive to glucose consumption and cell growth, especially deletion of glucosephosphate isomerase. Next, the carbon flux in PP pathway was enhanced by… More >

HUAMIN WANG^1,#, YANTING WU^1,#, ZHENLEI WANG^2,#, YUHANG CHEN¹, JINYU MO¹, WEN GUAN¹, YALI ZHANG¹, HONGLIANG YAO^1,*

Oncology Research, Vol.29, No.3, pp. 201-215, 2021, DOI:10.32604/or.2022.03553 - 01 August 2022

Abstract LncRNAs and metabolism represents two factors involved in cancer initiation and progression. However, the interaction between lncRNAs and metabolism remains to be fully explored. In this study, lncRNA FEZF1-AS1 (FEZF1- AS1) was found upregulated in colon cancer after screening all the lncRNAs of colon cancer tissues deposited in TCGA, the result of which was further confirmed by RNAscope staining on a colon tissue chip. The results obtained using FEZF1- AS1 knockout colon cancer cells (SW480 KO and HCT-116 KO) constructed using CRISPR/Cas9 system confirmed the proliferation, invasion, and migration-promoting function of FEZF1-AS1 in vitro. Mechanistically, FEZF1-AS1… More >