Epithelial-mesenchymal transition (EMT) is a critical response during cancer cell metastasis. In this study, we provide evidence that uncoordinated 51-like kinase 2 (ULK2) regulates EMT. Induction of autophagy by inhibition of mammalian target of rapamycin complex 1 (mTORC1) or by disruption of mTORC1 by silencing raptor significantly enhanced EMT, however, disruption of mTORC2 by silencing rictor had no effect. Knockdown of ULK2 expression significantly induced autophagy, EMT, and migration but suppressed proliferation as well as tumor growth in a xenotransplantation model, whereas silencing of ULK1 had no effect. Therefore, we suggest that ULK2 regulates EMT through modulation of autophagy.
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http://dx.doi.org/10.1002/1873-3468.12172 | DOI Listing |
Int J Biol Macromol
April 2024
Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang Road, Nanjing 210095, People's Republic of China. Electronic address:
Uncoordinated (Unc) 51-like kinase (ulk1) and ulk2 are closely involved in autophagy activation, but little is known about their roles in regulating glucose homeostasis. In this study, the genes of ulk1a, ulk1b and ulk2 were cloned and characterized in fish Megalobrama amblycephala. All the three genes shared the approximate N-terminal kinase domain and the C-terminal Atg1-like_tMIT domain structure, while the amino acid sequence identity of them are different between M.
View Article and Find Full Text PDFBiotechnol Genet Eng Rev
December 2024
Cancer center, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, China.
Uncoordinated 51-like kinase 1 (ULK1) is an essential part involved in autophagy to maintain cell viability and homeostasis. Herein, the expression levels of ULK1 in colon cancer (CC) were investigated, and its clinicopathological features and potential function were analyzed. Data of ULK1 were obtained from a public database.
View Article and Find Full Text PDFJ Hepatocell Carcinoma
February 2023
Medical Research Center, The Fourth Affiliated Hospital, School of Medicine, Zhejiang University, Yiwu, 322000, People's Republic of China.
Purpose: The uncoordinated-51 like kinase 1 (ULK1) is an important serine/threonine protein kinase involved in autophagy, especially for the initiation stage. Previous studies have shown that ULK1 could be used as a prognostic marker in predicting poor progression-free survival and a therapeutic target for hepatocellular carcinoma (HCC) when treated with sorafenib; however, its role during hepatocarcinogenesis remains to be elucidated.
Methods: CCK8 and colony formation assay were used to detect cell growth ability.
Chin J Integr Med
October 2023
Nephropathy Department, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong Province, 518034, China.
Objective: To investigate protective effect of Cordyceps sinensis (CS) through autophagy-associated adenosine monophosphate-activated protein kinase (AMPK)/mammalian target of rapamycin (mTOR) signaling pathway in acute kidney injury (AKI)-induced acute lung injury (ALI).
Methods: Forty-eight male Sprague-Dawley rats were divided into 4 groups according to a random number table, including the normal saline (NS)-treated sham group (sham group), NS-treated ischemia reperfusion injury (IRI) group (IRI group), and low- (5 g/kg·d) and high-dose (10 g/kg·d) CS-treated IRI groups (CS1 and CS2 groups), 12 rats in each group. Nephrectomy of the right kidney was performed on the IRI rat model that was subjected to 60 min of left renal pedicle occlusion followed by 12, 24, 48, and 72 h of reperfusion.
Anim Nutr
December 2022
College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China.
The present study explored the impacts of Ile on muscle fatty acid and amino acid profiles, lipid metabolism, and autophagy in hybrid catfish. Seven isonitrogenous (387.8 g/kg protein) semi-purified diets were formulated to contain 5.
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