1
|
The effect of lipocalin-2 (LCN2) on apoptosis: a proteomics analysis study in an LCN2 deficient mouse model. BMC Genomics 2021; 22:892. [PMID: 34903175 PMCID: PMC8670060 DOI: 10.1186/s12864-021-08211-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 11/23/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Recent studies have shown that lipocalin-2 (LCN2) has multiple functions involved in various biological and pathological processes including energy homeostasis, cancer, inflammation, and apoptosis. We aimed to investigate the effect of LCN2 on apoptosis that influences the pathogenetic process of metabolic diseases and cancer. METHODS We performed a proteomics analysis of livers taken from LCN2-knockout mice and wild type mice by using label-free LC-MS/MS quantitative proteomics. RESULTS Proteomic analysis revealed that there were 132 significantly differentially expressed proteins (49 upregulated and 83 downregulated) among 2140 proteins in the liver of LCN2-knockout mice compared with wild type mice. Of these, seven apoptosis-associated proteins were significantly upregulated and seven apoptosis-associated proteins downregulated. CONCLUSION Proteomics demonstrated that there were seven upregulated and seven downregulated apoptosis-associated proteins in liver of LCN2-knockout mice. It is important to clarify the effect of LCN2 on apoptosis that might contribute to the pathogenesis of insulin resistance, cancer, and various nervous system diseases.
Collapse
|
2
|
Epigenetic induction of lipocalin 2 expression drives acquired resistance to 5-fluorouracil in colorectal cancer through integrin β3/SRC pathway. Oncogene 2021; 40:6369-6380. [PMID: 34588619 DOI: 10.1038/s41388-021-02029-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 09/03/2021] [Accepted: 09/17/2021] [Indexed: 12/24/2022]
Abstract
The therapeutic efficacy of 5-fluorouracil (5-FU) is often reduced by the development of drug resistance. We observed significant upregulation of lipocalin 2 (LCN2) expression in a newly established 5-FU-resistant colorectal cancer (CRC) cell line. In this study, we demonstrated that 5-FU-treated CRC cells developed resistance through LCN2 upregulation caused by LCN2 promoter demethylation and that feedback between LCN2 and NF-κB further amplified LCN2 expression. High LCN2 expression was associated with poor prognosis in CRC patients. LCN2 attenuated the cytotoxicity of 5-FU by activating the SRC/AKT/ERK-mediated antiapoptotic program. Mechanistically, the LCN2-integrin β3 interaction enhanced integrin β3 stability, thus recruiting SRC to the cytomembrane for autoactivation, leading to downstream AKT/ERK cascade activation. Targeting LCN2 or SRC compromised the growth of CRC cells with LCN2-induced 5-FU resistance. Our findings demonstrate a novel mechanism of acquired resistance to 5-FU, suggesting that LCN2 can be used as a biomarker and/or therapeutic target for advanced CRC.
Collapse
|
3
|
Perego S, Sansoni V, Ziemann E, Lombardi G. Another Weapon against Cancer and Metastasis: Physical-Activity-Dependent Effects on Adiposity and Adipokines. Int J Mol Sci 2021; 22:ijms22042005. [PMID: 33670492 PMCID: PMC7922129 DOI: 10.3390/ijms22042005] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/15/2021] [Accepted: 02/16/2021] [Indexed: 12/15/2022] Open
Abstract
Physically active behavior has been associated with a reduced risk of developing certain types of cancer and improved psychological conditions for patients by reducing anxiety and depression, in turn improving the quality of life of cancer patients. On the other hand, the correlations between inactivity, sedentary behavior, and overweight and obesity with the risk of development and progression of various cancers are well studied, mainly in middle-aged and elderly subjects. In this article, we have revised the evidence on the effects of physical activity on the expression and release of the adipose-tissue-derived mediators of low-grade chronic inflammation, i.e., adipokines, as well as the adipokine-mediated impacts of physical activity on tumor development, growth, and metastasis. Importantly, exercise training may be effective in mitigating the side effects related to anti-cancer treatment, thereby underlining the importance of encouraging cancer patients to engage in moderate-intensity activities. However, the strong need to customize and adapt exercises to a patient’s abilities is apparent. Besides the preventive effects of physically active behavior against the adipokine-stimulated cancer risk, it remains poorly understood how physical activity, through its actions as an adipokine, can actually influence the onset and development of metastases.
Collapse
Affiliation(s)
- Silvia Perego
- Laboratory of Experimental Biochemistry and Molecular Biology, Milano, IRCCS Istituto Ortopedico Galeazzi, 20161 Milan, Italy; (S.P.); or
| | - Veronica Sansoni
- Laboratory of Experimental Biochemistry and Molecular Biology, Milano, IRCCS Istituto Ortopedico Galeazzi, 20161 Milan, Italy; (S.P.); or
- Correspondence: ; Tel.: +39-0266214068
| | - Ewa Ziemann
- Department of Athletics, Strength and Conditioning, Poznań University of Physical Education, 61-871 Poznań, Poland; or
| | - Giovanni Lombardi
- Laboratory of Experimental Biochemistry and Molecular Biology, Milano, IRCCS Istituto Ortopedico Galeazzi, 20161 Milan, Italy; (S.P.); or
- Department of Athletics, Strength and Conditioning, Poznań University of Physical Education, 61-871 Poznań, Poland; or
| |
Collapse
|
4
|
Hui Z, Jiang Z, Qiao D, Bo Z, Qiyuan K, Shaohua B, Wenbing Y, Wei L, Cheng L, Shuangning L, Zhengyi L, Yingyi L. Increased expression of LCN2 formed a positive feedback loop with activation of the ERK pathway in human kidney cells during kidney stone formation. Sci Rep 2020; 10:21287. [PMID: 33277533 PMCID: PMC7718880 DOI: 10.1038/s41598-020-75670-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 09/09/2020] [Indexed: 12/29/2022] Open
Abstract
Kidney stones are a common threat to the health of elderly patients with a high incidence of disease. However, the specific molecular mechanism of the formation of kidney stones has not been elucidated. Here, we combined signalling molecules with signalling pathways in a double positive circulation regulation model. In addition, we found that LCN2 plays a role in promoting kidney stones through regulation of the ERK signalling pathway and expression of other kidney stone-related genes. LCN2 expression was upregulated upon oxalate stimulation. P-ERK1/2 inhibition by U0126 in kidney epithelial cells resulted in decreased expression of LCN2. Furthermore, the upregulation of LCN2 not only depended on the activation of the ERK signalling pathway but also regulated the activation of the ERK signalling pathway. Importantly, upregulation of LCN2 not only caused kidney epithelial cell damage but also promoted the expression of other kidney stone-related genes. Our findings improved the understanding of LCN2 and might lead to the development of new therapeutic and prognostic markers for kidney stones.
Collapse
Affiliation(s)
- Zhang Hui
- Department of Urology, Baoji People's Hospital, Baoji, 721000, Shaanxi, China
| | - Zhu Jiang
- Department of Urology, Baoji People's Hospital, Baoji, 721000, Shaanxi, China
| | - Du Qiao
- Department of Urology, Baoji People's Hospital, Baoji, 721000, Shaanxi, China
| | - Zhao Bo
- Department of Urology, Baoji People's Hospital, Baoji, 721000, Shaanxi, China
| | - Kang Qiyuan
- Department of Urology, Baoji People's Hospital, Baoji, 721000, Shaanxi, China
| | - Bian Shaohua
- Department of Urology, Baoji People's Hospital, Baoji, 721000, Shaanxi, China
| | - Yuan Wenbing
- Department of Urology, Baoji People's Hospital, Baoji, 721000, Shaanxi, China
| | - Liu Wei
- Department of Urology, Baoji People's Hospital, Baoji, 721000, Shaanxi, China
| | - Luo Cheng
- Department of Urology, Baoji People's Hospital, Baoji, 721000, Shaanxi, China
| | - Liu Shuangning
- Department of Urology, Baoji People's Hospital, Baoji, 721000, Shaanxi, China
| | - Li Zhengyi
- Department of Urology, Baoji People's Hospital, Baoji, 721000, Shaanxi, China
| | - Li Yingyi
- Department of Urology, Baoji People's Hospital, Baoji, 721000, Shaanxi, China.
| |
Collapse
|
5
|
Lu X, Wang F, Fu M, Li Y, Wang L. [ARTICLE WITHDRAWN] Long Noncoding RNA KCNQ1OT1 Accelerates the Progression of Ovarian Cancer via MicroRNA-212-3/LCN2 Axis. Oncol Res 2019; 28:135-146. [PMID: 31653278 PMCID: PMC7851512 DOI: 10.3727/096504019x15719983040135] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
ARTICLE WITHDRAWN: This article was withdrawn by the authors with the following Withdrawal Statement - The integrity of the current study is not acceptable. The authors intend to enrich the study to make it more valuable. Thus, the authors want to withdraw the current study. Please accept our apologies for this inconvenience and we hope for your understanding. Yours sincerely (on behalf of the authors), Xiaoqin Lu.
Collapse
Affiliation(s)
- Xiaoqin Lu
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Zhengzhou UniversityZhengzhou, HenanP.R. China
| | - Fuying Wang
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Zhengzhou UniversityZhengzhou, HenanP.R. China
| | - Meizhou Fu
- Education and Training Department, People's Hospital of Zhengzhou UniversityZhengzhou, HenanP.R. China
| | - Yuankun Li
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Zhengzhou UniversityZhengzhou, HenanP.R. China
| | - Lijun Wang
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Zhengzhou UniversityZhengzhou, HenanP.R. China
| |
Collapse
|