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Zhang C, Zeng M, Xu Y, Huang B, Shi P, Zhu X, Cao Y. S100A6 mediated epithelial-mesenchymal transition affects chemosensitivity of colorectal cancer to oxaliplatin. Gene 2024; 914:148406. [PMID: 38521111 DOI: 10.1016/j.gene.2024.148406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 03/17/2024] [Accepted: 03/20/2024] [Indexed: 03/25/2024]
Abstract
PURPOSE To investigate the mechanism by which S100 calcium-binding protein A6 (S100A6) affects colorectal cancer (CRC) cells to oxaliplatin (L-OHP) chemotherapy, and to explore new strategies for CRC treatment. METHODS S100A6 expression was assessed in both parental and L-OHP-resistant CRC cells using western blotting, quantitative real-time polymerase chain reaction (qRT-PCR), and enzyme-linked immunosorbent assays (ELISA). Lentiviral vectors were utilized to induce the knockdown of S100A6 expression, followed by comprehensive evaluations of cell proliferation, apoptosis, and epithelial-mesenchymal transition (EMT). Additionally, RNA-seq analysis was conducted to identify genes associated with the knockdown of S100A6. RESULTS Elevated S100A6 expression in CRC tissues correlated with an adverse prognosis in patients with CRC. Higher expression of S100A6 was also observed in L-OHP-resistant CRC cells, which showed enhanced proliferation, migration, invasion, and antiapoptotic capabilities. Notably, the knockdown of S100A6 expression resulted in decreased proliferation, increased apoptosis, and suppression of EMT and tumorigenicity in L-OHP-resistant CRC cells. Transcriptome sequencing reveals a noteworthy association between S100A6 and vimentin expression. Application of the EMT agonist, transforming growth factor β (TGF-β), induces EMT in CRC cells. S100A6 expression positively correlates with TGF-β expression. TGF-β facilitated the expression of EMT-related molecules and reduced the chemosensitivity of L-OHP in S100A6-knockdown cells. CONCLUSION In conclusion, the knockdown of S100A6 may overcome the L-OHP resistance of CRC cells by modulating EMT.
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Affiliation(s)
- Chunying Zhang
- Department of Clinical Laboratory, Fujian Medical University Union Hospital, Fuzhou, China
| | - Menglu Zeng
- Department of Clinical Laboratory, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynaecology and Paediatrics, Fujian Medical University, Fuzhou, China
| | - Yihan Xu
- Department of Clinical Laboratory, Fujian Medical University Union Hospital, Fuzhou, China
| | - Bihan Huang
- Department of Clinical Laboratory, Fujian Medical University Union Hospital, Fuzhou, China
| | - Pengchong Shi
- Department of Clinical Laboratory, Fujian Medical University Union Hospital, Fuzhou, China
| | - Xianjin Zhu
- Department of Clinical Laboratory, Fujian Medical University Union Hospital, Fuzhou, China.
| | - Yingping Cao
- Department of Clinical Laboratory, Fujian Medical University Union Hospital, Fuzhou, China.
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Su J, Jiao T, Liu X, Zhu L, Ma B, Ma F, Li M. Calcyclin-binding protein-promoted degradation of MdFRUCTOKINASE2 regulates sugar homeostasis in apple. Plant Physiol 2023; 191:1052-1065. [PMID: 36461944 PMCID: PMC9922394 DOI: 10.1093/plphys/kiac549] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 11/03/2022] [Indexed: 06/17/2023]
Abstract
Fructokinase (FRK) activates fructose through phosphorylation, which sends the activated fructose into primary metabolism and regulates fructose signaling capabilities in plants. The apple (Malus × domestica) FRK gene MdFRK2 shows especially high affinity to fructose, and its overexpression decreases fructose levels in the leaves of young plants. However, in the current study of mature plants, fruits of transgenic apple trees overexpressing MdFRK2 accumulated a higher level of fructose than wild-type (WT) fruits (at both young and mature stages). Transgenic apple trees with high mRNA MdFRK2 expression showed no significant differences in MdFRK2 protein abundance or FRK enzyme activity compared to WT in mature leaves, young fruits, and mature fruits. Immunoprecipitation-mass spectrometry analysis identified an skp1, cullin, F-box (SCF) E3 ubiquitin ligase, calcyclin-binding protein (CacyBP), that interacted with MdFRK2. RNA-sequencing analysis provided evidence for ubiquitin-mediated post-transcriptional regulation of MdFRK2 protein for the maintenance of fructose homeostasis in mature leaves and fruits. Further analyses suggested an MdCacyBP-MdFRK2 regulatory module, in which MdCacyBP interacts with and ubiquitinates MdFRK2 to facilitate its degradation by the 26S proteasome, thus decreasing the FRK enzyme activity to elevate fructose concentration in transgenic apple trees. This result uncovered an important mechanism underlying plant fructose homeostasis in different organs through regulating the MdFRK2 protein level via ubiquitination and degradation. Our study provides usable data for the future improvement of apple flavor and expands our understanding of the molecular mechanisms underlying plant fructose content and signaling regulation.
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Affiliation(s)
- Jing Su
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Shaanxi Key Laboratory of Apple, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Tiantian Jiao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Shaanxi Key Laboratory of Apple, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xi Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Shaanxi Key Laboratory of Apple, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Lingcheng Zhu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Shaanxi Key Laboratory of Apple, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Baiquan Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Shaanxi Key Laboratory of Apple, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Fengwang Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Shaanxi Key Laboratory of Apple, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Mingjun Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Shaanxi Key Laboratory of Apple, Northwest A&F University, Yangling 712100, Shaanxi, China
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Yamamoto M, Kondo R, Hozumi H, Doi S, Denda M, Magari M, Kanayama N, Hatano N, Morishita R, Tokumitsu H. Identification and Biochemical Characterization of High Mobility Group Protein 20A as a Novel Ca 2+/S100A6 Target. Biomolecules 2021; 11:biom11040510. [PMID: 33808200 PMCID: PMC8103281 DOI: 10.3390/biom11040510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/17/2021] [Accepted: 03/23/2021] [Indexed: 12/30/2022] Open
Abstract
During screening of protein-protein interactions, using human protein arrays carrying 19,676 recombinant glutathione s-transferase (GST)-fused human proteins, we identified the high-mobility protein group 20A (HMG20A) as a novel S100A6 binding partner. We confirmed the Ca2+-dependent interaction of HMG20A with S100A6 by the protein array method, biotinylated S100A6 overlay, and GST-pulldown assay in vitro and in transfected COS-7 cells. Co-immunoprecipitation of S100A6 with HMG20A from HeLa cells in a Ca2+-dependent manner revealed the physiological relevance of the S100A6/HMG20A interaction. In addition, HMG20A has the ability to interact with S100A1, S100A2, and S100B in a Ca2+-dependent manner, but not with S100A4, A11, A12, and calmodulin. S100A6 binding experiments using various HMG20A mutants revealed that Ca2+/S100A6 interacts with the C-terminal region (residues 311–342) of HMG20A with stoichiometric binding (HMG20A:S100A6 dimer = 1:1). This was confirmed by the fact that a GST-HMG20A mutant lacking the S100A6 binding region (residues 311–347, HMG20A-ΔC) failed to interact with endogenous S100A6 in transfected COS-7 cells, unlike wild-type HMG20A. Taken together, these results identify, for the first time, HMG20A as a target of Ca2+/S100 proteins, and may suggest a novel linkage between Ca2+/S100 protein signaling and HMG20A function, including in the regulation of neural differentiation.
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Affiliation(s)
- Maho Yamamoto
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan; (M.Y.); (R.K.); (S.D.); (M.M.); (N.K.); (N.H.)
| | - Rina Kondo
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan; (M.Y.); (R.K.); (S.D.); (M.M.); (N.K.); (N.H.)
| | - Haruka Hozumi
- Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Okayama University, Okayama 700-8530, Japan;
| | - Seita Doi
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan; (M.Y.); (R.K.); (S.D.); (M.M.); (N.K.); (N.H.)
| | - Miwako Denda
- Cell Free Sciences Co., Ltd., Matsuyama 790-8577, Japan; (M.D.); (R.M.)
| | - Masaki Magari
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan; (M.Y.); (R.K.); (S.D.); (M.M.); (N.K.); (N.H.)
| | - Naoki Kanayama
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan; (M.Y.); (R.K.); (S.D.); (M.M.); (N.K.); (N.H.)
| | - Naoya Hatano
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan; (M.Y.); (R.K.); (S.D.); (M.M.); (N.K.); (N.H.)
| | - Ryo Morishita
- Cell Free Sciences Co., Ltd., Matsuyama 790-8577, Japan; (M.D.); (R.M.)
| | - Hiroshi Tokumitsu
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan; (M.Y.); (R.K.); (S.D.); (M.M.); (N.K.); (N.H.)
- Correspondence: ; Tel.: +81-86-251-8197
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Peterova E, Bures J, Moravkova P, Kohoutova D. Tissue mRNA for S100A4, S100A6, S100A8, S100A9, S100A11 and S100P Proteins in Colorectal Neoplasia: A Pilot Study. Molecules 2021; 26:molecules26020402. [PMID: 33466593 PMCID: PMC7828666 DOI: 10.3390/molecules26020402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 01/03/2021] [Accepted: 01/11/2021] [Indexed: 11/16/2022] Open
Abstract
S100 proteins are involved in the pathogenesis of sporadic colorectal carcinoma through different mechanisms. The aim of our study was to assess tissue mRNA encoding S100 proteins in patients with non-advanced and advanced colorectal adenoma. Mucosal biopsies were taken from the caecum, transverse colon and rectum during diagnostic and/or therapeutic colonoscopy. Another biopsy was obtained from adenomatous tissue in the advanced adenoma group. The tissue mRNA for each S100 protein (S100A4, S100A6, S100A8, S100A9, S100A11 and S100P) was investigated. Eighteen biopsies were obtained from the healthy mucosa in controls and the non-advanced adenoma group (six individuals in each group) and thirty biopsies in the advanced adenoma group (ten patients). Nine biopsies were obtained from advanced adenoma tissue (9/10 patients). Significant differences in mRNA investigated in the healthy mucosa were identified between (1) controls and the advanced adenoma group for S100A6 (p = 0.012), (2) controls and the non-advanced adenoma group for S100A8 (p = 0.033) and (3) controls and the advanced adenoma group for S100A11 (p = 0.005). In the advanced adenoma group, differences between the healthy mucosa and adenomatous tissue were found in S100A6 (p = 0.002), S100A8 (p = 0.002), S100A9 (p = 0.021) and S100A11 (p = 0.029). Abnormal mRNA expression for different S100 proteins was identified in the pathological adenomatous tissue as well as in the morphologically normal large intestinal mucosa.
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Affiliation(s)
- Eva Peterova
- 2nd Department of Internal Medicine–Gastroenterology, Charles University, Faculty of Medicine in Hradec Kralove, University Hospital, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; (E.P.); (P.M.); (D.K.)
- Department of Medical Biochemistry, Charles University, Faculty of Medicine in Hradec Kralove, Simkova 870, 500 01 Hradec Kralove, Czech Republic
| | - Jan Bures
- 2nd Department of Internal Medicine–Gastroenterology, Charles University, Faculty of Medicine in Hradec Kralove, University Hospital, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; (E.P.); (P.M.); (D.K.)
- Correspondence: ; Tel.: +420-495-834-240
| | - Paula Moravkova
- 2nd Department of Internal Medicine–Gastroenterology, Charles University, Faculty of Medicine in Hradec Kralove, University Hospital, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; (E.P.); (P.M.); (D.K.)
| | - Darina Kohoutova
- 2nd Department of Internal Medicine–Gastroenterology, Charles University, Faculty of Medicine in Hradec Kralove, University Hospital, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; (E.P.); (P.M.); (D.K.)
- The Royal Marsden Hospital NHS Foundation Trust, Fulham Road, Chelsea, London SW3 6JJ, UK
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Zhang J, Yang P, Liu D, Gao M, Wang J, Wang X, Liu Y, Zhang X. c-Myc Upregulated by High Glucose Inhibits HaCaT Differentiation by S100A6 Transcriptional Activation. Front Endocrinol (Lausanne) 2021; 12:676403. [PMID: 34060533 PMCID: PMC8163689 DOI: 10.3389/fendo.2021.676403] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 04/30/2021] [Indexed: 01/13/2023] Open
Abstract
Keratinocyte differentiation dysfunction in diabetic skin is closely related to impaired skin barrier functions. We investigated the effects of c-Myc and S100A6 on Human immortal keratinocyte line (HaCaT) or keratinocyte differentiation and potential mechanisms. The expression levels of differentiation makers such as transglutaminase 1 (TGM1), loricrin (LOR), and keratin 1 (K1) were significantly reduced, while the expression of c-Myc was significantly increased in HaCaT cells cultured in high glucose and wound margin keratinocytes from diabetic rats and human patients. Overexpression of c-Myc caused differentiation dysfunction of HaCaT, while knocking down c-Myc promoted differentiation. High glucose increased the expression of c-Myc and inhibited differentiation in HaCaT cells by activating the WNT/β-catenin pathway. Moreover, inhibition of c-Myc transcriptional activity alleviated the differentiation dysfunction caused by high glucose or overexpression of c-Myc. c-Myc binds to the S100A6 promoter to directly regulate S100A6 expression and high glucose promoted S100A6 transcription. The expression of S100A6 was increased in HaCaT cultured with high glucose and wound margin keratinocytes from diabetic rats and human patients. However, the expression of S100A6 was decreased during normal HaCaT differentiation. HaCaT cells treated with S100A6 recombinant protein showed differentiation dysfunction. The expressions of TGM1, LOR and K1 in knockdown S100A6 HaCaT cells were higher than those in the control group. Overexpression of c-Myc or high glucose caused differentiation dysfunction of HaCaT cells, and was rescued by knocking down S100A6. These findings illustrate a new mechanism by which c-Myc upregulated by high glucose inhibits HaCaT differentiation by directly activating S100A6 transcription. Thus, c-Myc and S100A6 may be potential targets for the treatment of chronic diabetic wounds.
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Affiliation(s)
| | | | | | | | | | - Xiqiao Wang
- *Correspondence: Xiong Zhang, ; Yan Liu, ; Xiqiao Wang,
| | - Yan Liu
- *Correspondence: Xiong Zhang, ; Yan Liu, ; Xiqiao Wang,
| | - Xiong Zhang
- *Correspondence: Xiong Zhang, ; Yan Liu, ; Xiqiao Wang,
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Abstract
S100 calcium-binding protein A6 (S100A6) is up-regulated in many malignancies and overexpression of S100A6 has been identified associated with proliferation, migration and invasion phenotype in several cancer cells. In the present study, we explored whether S100A6 plays a role in the development of endometriosis. Significantly higher levels of mRNA and protein expression of S100A6 were observed in ectopic endometrial tissues compared to eutopic and normal endometrial tissues. Silencing of S100A6 in ectopic endometrial stromal cells (ESCs) significantly inhibited cell viability, migration and invasion. Moreover, knockdown of S100A6 suppressed p38/MAPK activity in ectopic ESCs, which can be partially attenuated by CacyBP/SIP phosphorylation inhibitor. In conclusion, our results suggest that the abnormal expression of S100A6 may contribute to the pathogenesis of endometriosis and the S100A6/CacyBP/p38 signaling may provide as a promising treatment target.
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Affiliation(s)
- Yaoming Peng
- a Department of Gynecology and Obstetrics , Women's Hospital, Zhejiang University Medical College , Hangzhou , P.R. China
| | - Jiabin Lin
- a Department of Gynecology and Obstetrics , Women's Hospital, Zhejiang University Medical College , Hangzhou , P.R. China
| | - Junyan Ma
- b Department of Laboratory , Women's Hospital, School of Medicine, Zhejiang University , Hangzhou , P.R. China
| | - Kaiqing Lin
- a Department of Gynecology and Obstetrics , Women's Hospital, Zhejiang University Medical College , Hangzhou , P.R. China
| | - Kaihong Xu
- a Department of Gynecology and Obstetrics , Women's Hospital, Zhejiang University Medical College , Hangzhou , P.R. China
| | - Jun Lin
- a Department of Gynecology and Obstetrics , Women's Hospital, Zhejiang University Medical College , Hangzhou , P.R. China
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Abstract
BACKGROUND Calcyclin Binding Protein/(Siah-1 interacting protein) (CacyBP/SIP) acts as an oncogene in colorectal cancer. The nuclear accumulation of CacyBP/SIP has been linked to the proliferation of cancer cells. It has been reported that intracellular Ca2+ induces the nuclear translocation of CacyBP/SIP. However, the molecular mechanism of CacyBP/SIP nuclear translocation has yet to be elucidated. The purpose of this study was to test whether the Ca2+-dependent binding partner S100 protein is involved in CacyBP/SIP nuclear translocation in colon cancer SW480 cells. METHODS The subcellular localization of endogenous CacyBP/SIP was observed following the stimulation of ionomycin or BAPTA/AM by immunofluorescence staining in SW480 cells. S100A6 small interfering RNAs (siRNA) were transfected into SW480 cells. Immunoprecipitation assays detected whether S100 protein is relevant to the nuclear translocation of CacyBP/SIP in response to changes in [Ca2+]i. RESULTS We observed that endogenous CacyBP/SIP is translocated from the cytosol to the nucleus following the elevation of [Ca2+]i by ionomycin in SW480 cells. Co-immunoprecipitation experiments showed that the interaction between S100A6 and CacyBP/SIP was increased simultaneously with elevated Ca2+. Knockdown of S100A6 abolished the Ca2+ effect on the subcellular translocation of CacyBP/SIP. CONCLUSION Thus, we demonstrated that S100A6 is required for the Ca2+-dependent nuclear translocation of CacyBP/SIP in colon cancer SW480 cells.
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Affiliation(s)
- Shanshan Feng
- Surgery Laboratory, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, China
| | - Qiaozhi Zhou
- Department of Gastroenterology, Beijing Friendship Hospital Affiliated to Capital Medical University, Beijing, China
| | - Bo Yang
- Department of Gastroenterology, Beijing Friendship Hospital Affiliated to Capital Medical University, Beijing, China
| | - Qianqian Li
- Department of Gastroenterology, Beijing Friendship Hospital Affiliated to Capital Medical University, Beijing, China
| | - Aiqin Liu
- Department of Gastroenterology, Beijing Friendship Hospital Affiliated to Capital Medical University, Beijing, China
| | - Yingying Zhao
- Department of Gastroenterology, Beijing Friendship Hospital Affiliated to Capital Medical University, Beijing, China
| | - Changqing Qiu
- Department of Gastroenterology, Beijing Friendship Hospital Affiliated to Capital Medical University, Beijing, China
| | - Jun Ge
- Department of Gastroenterology, Beijing Friendship Hospital Affiliated to Capital Medical University, Beijing, China
| | - Huihong Zhai
- Department of Gastroenterology, Beijing Friendship Hospital Affiliated to Capital Medical University, Beijing, China
- Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing, China
- National Clinical Research Center for Digestive Diseases, Beijing, China
- * E-mail:
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