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Deng DX, Li CY, Zheng ZY, Wen B, Liao LD, Zhang XJ, Li EM, Xu LY. Prenylated PALM2 Promotes the Migration of Esophageal Squamous Cell Carcinoma Cells Through Activating Ezrin. Mol Cell Proteomics 2023; 22:100593. [PMID: 37328063 PMCID: PMC10393820 DOI: 10.1016/j.mcpro.2023.100593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 05/28/2023] [Accepted: 06/12/2023] [Indexed: 06/18/2023] Open
Abstract
Proteins containing a CAAX motif at the C-terminus undergo prenylation for localization and activity and include a series of key regulatory proteins, such as RAS superfamily members, heterotrimeric G proteins, nuclear lamina protein, and several protein kinases and phosphatases. However, studies of prenylated proteins in esophageal cancer are limited. Here, through research on large-scale proteomic data of esophageal cancer in our laboratory, we found that paralemmin-2 (PALM2), a potential prenylated protein, was upregulated and associated with poor prognosis in patients. Low-throughput verification showed that the expression of PALM2 in esophageal cancer tissues was higher than that in their paired normal esophageal epithelial tissues, and it was generally expressed in the membrane and cytoplasm of esophageal cancer cells. PALM2 interacted with the two subunits of farnesyl transferase (FTase), FNTA and FNTB. Either the addition of an FTase inhibitor or mutation in the CAAX motif of PALM2 (PALM2C408S) impaired its membranous localization and reduced the membrane location of PALM2, indicating PALM2 was prenylated by FTase. Overexpression of PALM2 enhanced the migration of esophageal squamous cell carcinoma cells, whereas PALM2C408S lost this ability. Mechanistically, PALM2 interacted with the N-terminal FERM domain of ezrin of the ezrin/radixin/moesin (ERM) family. Mutagenesis indicated that lysine residues K253/K254/K262/K263 in ezrin's FERM domain and C408 in PALM2's CAAX motif were important for PALM2/ezrin interaction and ezrin activation. Knockout of ezrin prevented enhanced cancer cell migration by PALM2 overexpression. PALM2, depending on its prenylation, increased both ezrin membrane localization and phosphorylation of ezrin at Y146. In summary, prenylated PALM2 enhances the migration of cancer cells by activating ezrin.
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Affiliation(s)
- Dan-Xia Deng
- Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Institute of Oncologic Pathology, Shantou University Medical College, Shantou, Guangdong, China
| | - Cheng-Yu Li
- Department of Biochemistry and Molecular Biology, The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, Guangdong, China; Guangdong Esophageal Cancer Research Institute, Shantou Sub-center, Cancer Research Cancer, Shantou University Medical College, Shantou, Guangdong, China
| | - Zhen-Yuan Zheng
- Department of Biochemistry and Molecular Biology, The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, Guangdong, China; Guangdong Esophageal Cancer Research Institute, Shantou Sub-center, Cancer Research Cancer, Shantou University Medical College, Shantou, Guangdong, China
| | - Bing Wen
- Department of Biochemistry and Molecular Biology, The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, Guangdong, China
| | - Lian-Di Liao
- Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Institute of Oncologic Pathology, Shantou University Medical College, Shantou, Guangdong, China
| | - Xiao-Jun Zhang
- Central Laboratory, Shantou University Medical College, Shantou, Guangdong, China
| | - En-Min Li
- Department of Biochemistry and Molecular Biology, The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, Guangdong, China.
| | - Li-Yan Xu
- Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Institute of Oncologic Pathology, Shantou University Medical College, Shantou, Guangdong, China; Guangdong Esophageal Cancer Research Institute, Shantou Sub-center, Cancer Research Cancer, Shantou University Medical College, Shantou, Guangdong, China.
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Hoang LN, Lee SJ. Casein kinase 1 controls the shuttling of epidermal growth factor receptor and estrogen receptor in endometrial carcinoma induced by breast cancer hormonal therapy: Relevance of GPER1/Src. Cell Signal 2023:110733. [PMID: 37257767 DOI: 10.1016/j.cellsig.2023.110733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 04/06/2023] [Accepted: 05/23/2023] [Indexed: 06/02/2023]
Abstract
Casein kinase 1 plays a crucial role in carcinogenesis. 4-Hydroxytamoxifen (4-OHT), which is widely used to treat breast cancer, often leads to the development of endometrial carcinoma with poor prognosis, particularly among women who receiving long-term treatment. This study was performed to elucidate whether specific inhibition of casein kinase 1 (CK1) controls 4-OHT-mediated Ishikawa cell carcinogenesis. 4-OHT significantly stimulated the activity of estrogen receptor alpha (ERα) and nuclear translocation and expression of epidermal growth factor receptor (EGFR) from the plasma membrane to perinuclear or nuclear regions, as well as the activities of G-protein-coupled estrogen receptor 1 (GPER1) and Src in Ishikawa cells. However, inhibition of EGFR by Gefitinib blocked all these events, and inhibition of GPER1 or Src produced a partial block. GPER1 and Src controlled Ishikawa cell carcinogenesis in different manners: GPER1 accelerated EGFR mobility without affecting ERα activity, while Src activated ERα and EGFR without any change in GPER1 expression. EGFR and GPER1 performed reciprocal regulation in endometrial cell carcinogenesis via direct interaction in 4-OHT-treated Ishikawa cells, implying a possible key role of GPER1 in these events. Inhibition of CK1 by CKI-7 and IC261, however, impeded all changes beginning with EGFR translocation and activity in 4-OHT-treated Ishikawa cells. These findings indicate that inhibition of CK1 could control 4-OHT-mediated activation and translocation of ER/EGFR and GPER1/Src expression, inhibiting 4-OHT-triggered endometrial carcinogenesis. Therefore, targeting of CK1 by CKI-7 and IC261 could be a prospective adjuvant therapy for breast cancer patients taking tamoxifen.
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Affiliation(s)
- Long Ngo Hoang
- Department of Bioactive Material Sciences and Research Center of Bioactive Materials, Jeonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Sook-Jeong Lee
- Department of Bioactive Material Sciences and Research Center of Bioactive Materials, Jeonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea.
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Wang J, Yang J, Lei C, Sun X, Hu J. Phosphorylation of the Autographa californica multiple nucleopolyhedrovirus polyhedron envelope protein plays an important role in the formation of the occlusion body envelope. J Gen Virol 2022; 103. [PMID: 35737520 DOI: 10.1099/jgv.0.001759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
During the life cycle of a baculovirus, a crystallized protein matrix, formed by polyhedrin (POLH), is produced. The protein matrix is surrounded by a multilayered protein/carbohydrate envelope, and matrix and envelope together form a mature occlusion body (OB). The polyhedron envelope plays an important role in resistance against adverse external environments. The polyhedron envelope protein (PEP) is the main protein that forms the polyhedron envelope, but the mechanism of formation of the polyhedron envelope is unclear. Here, through immunofluorescence localization observations, we found that PEP interacted with both POLH and P10 during formation of the polyhedron envelope in the late stages of infection, and PEP was also required for P10 incorporation on the surface of OBs. In this process, the phosphorylation of PEP played an important role. PEP was determined to be a phosphorylated protein using the Phos-tag technique, and PK1 was determined to be the phosphokinase of PEP by co-immunoprecipitation and in vitro phosphorylation. Immunofluorescence localization revealed that PEP was continuously phosphorylated by PK1 after PEP entered the nucleus until PEP was correctly packaged on the OB surface. Multi-point mutations of PEP conservative potential phosphorylation sites showed that the simultaneous mutation of S85, T86 and Y92 caused changes in the location of PEP and P10 in the late stages of infection, and resulted in an OB surface that lacked the polyhedron envelope. These data suggested that the phosphorylation of PEP at particular sites, i.e. S85, T86 and Y92, plays an important role in the formation of the polyhedron envelope.
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Affiliation(s)
- Jia Wang
- Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, PR China.,University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Jian Yang
- Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, PR China.,University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Chengfeng Lei
- Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, PR China
| | - Xiulian Sun
- Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, PR China
| | - Jia Hu
- Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, PR China
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Shafie A, Khan S, Zehra, Mohammad T, Anjum F, Hasan GM, Yadav DK, Hassan MI. Identification of Phytoconstituents as Potent Inhibitors of Casein Kinase-1 Alpha Using Virtual Screening and Molecular Dynamics Simulations. Pharmaceutics 2021; 13:2157. [PMID: 34959438 PMCID: PMC8707374 DOI: 10.3390/pharmaceutics13122157] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/02/2021] [Accepted: 12/06/2021] [Indexed: 12/23/2022] Open
Abstract
Casein kinase-1 alpha (CK1α) is a multifunctional protein kinase that belongs to the serine/threonine kinases of the CK1α family. It is involved in various signaling pathways associated with chromosome segregation, cell metabolism, cell cycle progression, apoptosis, autophagy, etc. It has been known to involve in the progression of many diseases, including cancer, neurodegeneration, obesity, and behavioral disorders. The elevated expression of CK1α in diseased conditions facilitates its selective targeting for therapeutic management. Here, we have performed virtual screening of phytoconstituents from the IMPPAT database seeking potential inhibitors of CK1α. First, a cluster of compounds was retrieved based on physicochemical parameters following Lipinski's rules and PAINS filter. Further, high-affinity hits against CK1α were obtained based on their binding affinity score. Furthermore, the ADMET, PAINS, and PASS evaluation was carried out to select more potent hits. Finally, following the interaction analysis, we elucidated three phytoconstituents, Semiglabrinol, Curcusone_A, and Liriodenine, posturing considerable affinity and specificity towards the CK1α binding pocket. The result was further evaluated by molecular dynamics (MD) simulations, dynamical cross-correlation matrix (DCCM), and principal components analysis (PCA), which revealed that binding of the selected compounds, especially Semiglabrinol, stabilizes CK1α and leads to fewer conformational fluctuations. The MM-PBSA analysis suggested an appreciable binding affinity of all three compounds toward CK1α.
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Affiliation(s)
- Alaa Shafie
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia; (A.S.); (F.A.)
| | - Shama Khan
- Drug Discovery and Development Centre (H3D), University of Cape Town, Rondebosch 7701, South Africa;
| | - Zehra
- Department of Computer Science, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India;
| | - Taj Mohammad
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India;
| | - Farah Anjum
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia; (A.S.); (F.A.)
| | - Gulam Mustafa Hasan
- Department of Biochemistry, College of Medicine, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia;
| | - Dharmendra Kumar Yadav
- College of Pharmacy, Gachon University of Medicine and Science, Hambakmoeiro, Yeonsu-gu, Incheon City 21924, Korea
| | - Md. Imtaiyaz Hassan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India;
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