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Sanjeev D, George M, John L, Gopalakrishnan AP, Priyanka P, Mendon S, Yandigeri T, Nisar M, Nisar M, Kanekar S, Balaya RDA, Raju R. Tyr352 as a Predominant Phosphosite in the Understudied Kinase and Molecular Target, HIPK1: Implications for Cancer Therapy. OMICS 2024; 28:111-124. [PMID: 38498023 DOI: 10.1089/omi.2023.0244] [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] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Homeodomain-interacting protein kinase 1 (HIPK1) is majorly found in the nucleoplasm. HIPK1 is associated with cell proliferation, tumor necrosis factor-mediated cellular apoptosis, transcription regulation, and DNA damage response, and thought to play significant roles in health and common diseases such as cancer. Despite this, HIPK1 remains an understudied molecular target. In the present study, based on a systematic screening and mapping approach, we assembled 424 qualitative and 44 quantitative phosphoproteome datasets with 15 phosphosites in HIPK1 reported across multiple studies. These HIPK1 phosphosites were not currently attributed to any functions. Among them, Tyr352 within the kinase domain was identified as the predominant phosphosite modulated in 22 differential datasets. To analyze the functional association of HIPK1 Tyr352, we first employed a stringent criterion to derive its positively and negatively correlated protein phosphosites. Subsequently, we categorized the correlated phosphosites in known interactors, known/predicted kinases, and substrates of HIPK1, for their prioritized validation. Bioinformatics analysis identified their significant association with biological processes such as the regulation of RNA splicing, DNA-templated transcription, and cellular metabolic processes. HIPK1 Tyr352 was also identified to be upregulated in Her2+ cell lines and a subset of pancreatic and cholangiocarcinoma tissues. These data and the systems biology approach undertaken in the present study serve as a platform to explore the functional role of other phosphosites in HIPK1, and by extension, inform cancer drug discovery and oncotherapy innovation. In all, this study highlights the comprehensive phosphosite map of HIPK1 kinase and the first of its kind phosphosite-centric analysis of HIPK1 kinase based on global-level phosphoproteomics datasets derived from human cellular differential experiments across distinct experimental conditions.
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Affiliation(s)
- Diya Sanjeev
- Centre for Integrative Omics Data Science (CIODS), Yenepoya (Deemed-to-be University), Mangalore, Karnataka, India
| | - Mejo George
- Centre for Integrative Omics Data Science (CIODS), Yenepoya (Deemed-to-be University), Mangalore, Karnataka, India
| | - Levin John
- Centre for Integrative Omics Data Science (CIODS), Yenepoya (Deemed-to-be University), Mangalore, Karnataka, India
| | | | - Pahal Priyanka
- Centre for Integrative Omics Data Science (CIODS), Yenepoya (Deemed-to-be University), Mangalore, Karnataka, India
| | - Spoorthi Mendon
- Centre for Integrative Omics Data Science (CIODS), Yenepoya (Deemed-to-be University), Mangalore, Karnataka, India
| | - Tanuja Yandigeri
- Centre for Integrative Omics Data Science (CIODS), Yenepoya (Deemed-to-be University), Mangalore, Karnataka, India
| | - Mahammad Nisar
- Centre for Integrative Omics Data Science (CIODS), Yenepoya (Deemed-to-be University), Mangalore, Karnataka, India
| | - Muhammad Nisar
- Centre for Integrative Omics Data Science (CIODS), Yenepoya (Deemed-to-be University), Mangalore, Karnataka, India
| | - Saptami Kanekar
- Centre for Integrative Omics Data Science (CIODS), Yenepoya (Deemed-to-be University), Mangalore, Karnataka, India
| | | | - Rajesh Raju
- Centre for Integrative Omics Data Science (CIODS), Yenepoya (Deemed-to-be University), Mangalore, Karnataka, India
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Bei Y, Zhu Y, Wei M, Yin M, Li L, Chen C, Huang Z, Liang X, Gao J, Yao J, van der Kraak PH, Vink A, Lei Z, Dai Y, Chen H, Liang Y, Sluijter JPG, Xiao J. HIPK1 Inhibition Protects against Pathological Cardiac Hypertrophy by Inhibiting the CREB-C/EBPβ Axis. Adv Sci (Weinh) 2023; 10:e2300585. [PMID: 37098980 PMCID: PMC10288234 DOI: 10.1002/advs.202300585] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 04/04/2023] [Indexed: 06/19/2023]
Abstract
Inhibition of pathological cardiac hypertrophy is recognized as an important therapeutic strategy for heart failure, although effective targets are still lacking in clinical practice. Homeodomain interacting protein kinase 1 (HIPK1) is a conserved serine/threonine kinase that can respond to different stress signals, however, whether and how HIPK1 regulates myocardial function is not reported. Here, it is observed that HIPK1 is increased during pathological cardiac hypertrophy. Both genetic ablation and gene therapy targeting HIPK1 are protective against pathological hypertrophy and heart failure in vivo. Hypertrophic stress-induced HIPK1 is present in the nucleus of cardiomyocytes, while HIPK1 inhibition prevents phenylephrine-induced cardiomyocyte hypertrophy through inhibiting cAMP-response element binding protein (CREB) phosphorylation at Ser271 and inactivating CCAAT/enhancer-binding protein β (C/EBPβ)-mediated transcription of pathological response genes. Inhibition of HIPK1 and CREB forms a synergistic pathway in preventing pathological cardiac hypertrophy. In conclusion, HIPK1 inhibition may serve as a promising novel therapeutic strategy to attenuate pathological cardiac hypertrophy and heart failure.
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Affiliation(s)
- Yihua Bei
- Institute of Geriatrics (Shanghai University)Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong)School of MedicineShanghai UniversityNantong226011China
- Cardiac Regeneration and Ageing LabInstitute of Cardiovascular SciencesShanghai Engineering Research Center of Organ RepairSchool of Life ScienceShanghai UniversityShanghai200444China
| | - Yujiao Zhu
- Institute of Geriatrics (Shanghai University)Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong)School of MedicineShanghai UniversityNantong226011China
- Cardiac Regeneration and Ageing LabInstitute of Cardiovascular SciencesShanghai Engineering Research Center of Organ RepairSchool of Life ScienceShanghai UniversityShanghai200444China
| | - Meng Wei
- Institute of Geriatrics (Shanghai University)Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong)School of MedicineShanghai UniversityNantong226011China
- Cardiac Regeneration and Ageing LabInstitute of Cardiovascular SciencesShanghai Engineering Research Center of Organ RepairSchool of Life ScienceShanghai UniversityShanghai200444China
| | - Mingming Yin
- Institute of Geriatrics (Shanghai University)Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong)School of MedicineShanghai UniversityNantong226011China
- Cardiac Regeneration and Ageing LabInstitute of Cardiovascular SciencesShanghai Engineering Research Center of Organ RepairSchool of Life ScienceShanghai UniversityShanghai200444China
| | - Lin Li
- Institute of Geriatrics (Shanghai University)Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong)School of MedicineShanghai UniversityNantong226011China
- Cardiac Regeneration and Ageing LabInstitute of Cardiovascular SciencesShanghai Engineering Research Center of Organ RepairSchool of Life ScienceShanghai UniversityShanghai200444China
| | - Chen Chen
- Institute of Geriatrics (Shanghai University)Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong)School of MedicineShanghai UniversityNantong226011China
- Cardiac Regeneration and Ageing LabInstitute of Cardiovascular SciencesShanghai Engineering Research Center of Organ RepairSchool of Life ScienceShanghai UniversityShanghai200444China
| | - Zhenzhen Huang
- Institute of Geriatrics (Shanghai University)Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong)School of MedicineShanghai UniversityNantong226011China
- Cardiac Regeneration and Ageing LabInstitute of Cardiovascular SciencesShanghai Engineering Research Center of Organ RepairSchool of Life ScienceShanghai UniversityShanghai200444China
| | - Xuchun Liang
- Institute of Geriatrics (Shanghai University)Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong)School of MedicineShanghai UniversityNantong226011China
- Cardiac Regeneration and Ageing LabInstitute of Cardiovascular SciencesShanghai Engineering Research Center of Organ RepairSchool of Life ScienceShanghai UniversityShanghai200444China
| | - Juan Gao
- Institute of Geriatrics (Shanghai University)Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong)School of MedicineShanghai UniversityNantong226011China
- Cardiac Regeneration and Ageing LabInstitute of Cardiovascular SciencesShanghai Engineering Research Center of Organ RepairSchool of Life ScienceShanghai UniversityShanghai200444China
| | - Jianhua Yao
- Department of CardiologyShanghai Tenth People's HospitalTongji University School of MedicineShanghai200072China
- Department of CardiologyShigatse People's HospitalTibet857000China
| | - Petra H. van der Kraak
- Department of PathologyUniversity Medical Center UtrechtUniversity UtrechtUtrecht3584 CXThe Netherlands
| | - Aryan Vink
- Department of PathologyUniversity Medical Center UtrechtUniversity UtrechtUtrecht3584 CXThe Netherlands
| | - Zhiyong Lei
- Department of CardiologyLaboratory of Experimental CardiologyUniversity Medical Center UtrechtUniversity UtrechtUtrecht3584 CXThe Netherlands
- Division LabCentral Diagnosis Laboratory ResearchUniversity Medical Center UtrechtUniversity UtrechtUtrecht3584 CXThe Netherlands
| | - Yuxiang Dai
- Shanghai Institute of Cardiovascular DiseasesZhongshan HospitalFudan UniversityShanghai200032China
| | - Huihua Chen
- School of Basic Medical ScienceShanghai University of Traditional Chinese MedicineShanghai201203China
| | - Yueyang Liang
- School of Basic Medical ScienceShanghai University of Traditional Chinese MedicineShanghai201203China
| | - Joost PG Sluijter
- Department of CardiologyLaboratory of Experimental CardiologyUniversity Medical Center UtrechtUniversity UtrechtUtrecht3584 CXThe Netherlands
- UMC Utrecht Regenerative Medicine CenterUniversity Medical Center UtrechtUtrecht3508 GAThe Netherlands
| | - Junjie Xiao
- Institute of Geriatrics (Shanghai University)Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong)School of MedicineShanghai UniversityNantong226011China
- Cardiac Regeneration and Ageing LabInstitute of Cardiovascular SciencesShanghai Engineering Research Center of Organ RepairSchool of Life ScienceShanghai UniversityShanghai200444China
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Gong J, Zhao S, Luo S, Yin S, Li X, Feng Y. Downregulation of circ-ZNF644 alleviates LPS-induced HK2 cell injury via miR-335-5p/ HIPK1 axis. Environ Toxicol 2022; 37:2855-2864. [PMID: 36052886 DOI: 10.1002/tox.23642] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 08/01/2022] [Accepted: 08/09/2022] [Indexed: 06/15/2023]
Abstract
Circular RNA (circRNA) has been confirmed to be involved in regulating sepsis-induced acute kidney injury (AKI). Our research aims to explore circ-ZNF644 role in the development of sepsis-induced AKI. Lipopolysaccharide (LPS) was used to induce kidney tubular epithelial cell (HK2) injury. ELISA assay was performed to measure the concentrations of inflammation factors. Cell functions were determined by cell counting kit 8 assay, EdU assay and flow cytometry. Protein expression was evaluated by Western blot analysis. Quantitative real-time PCR was used to detect relative expression of circ-ZNF644, miR-335-5p and homeodomain-interacting protein kinase 1 (HIPK1). RNA interaction was confirmed by dual-luciferase reporter assay and RIP assay. LPS enhanced HK2 cell inflammation, oxidative stress, apoptosis, and reduced proliferation. Circ-ZNF644 was overexpressed in sepsis-induced AKI patients. Circ-ZNF644 knockdown suppressed LPS-induced HK2 cell injury, and this effect could be revoked by miR-335-5p inhibitor. MiR-335-5p was sponged by circ-ZNF644, and its expression was downregulated in sepsis-induced AKI patients. HIPK1 was targeted by miR-335-5p, and its expression could be suppressed by circ-ZNF644 knockdown. MiR-335-5p had an inhibition effect on HK2 cell injury induced by LPS, and HIPK1 overexpression could reverse this effect. Circ-ZNF644 knockdown relieved LPS-induced HK2 cell injury through the miR-335-5p/HIPK1 axis, confirming that circ-ZNF644 contributed to sepsis-induced AKI.
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Affiliation(s)
- Junzuo Gong
- Department of Emergency, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Shiqiao Zhao
- Department of Emergency, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Shu Luo
- Department of Emergency, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Songlin Yin
- Department of Emergency, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Xiaofeng Li
- Department of Emergency, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Yao Feng
- Department of Emergency, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
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Yang N, Wang H, Zhang L, Lv J, Niu Z, Liu J, Zhang Z. Long non-coding RNA SNHG14 aggravates LPS-induced acute kidney injury through regulating miR-495-3p/ HIPK1. Acta Biochim Biophys Sin (Shanghai) 2021; 53:719-728. [PMID: 33856026 DOI: 10.1093/abbs/gmab034] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Indexed: 12/16/2022] Open
Abstract
Acute kidney injury (AKI) is a complex syndrome with an abrupt decrease of kidney function, which is associated with high morbidity and mortality. Sepsis is the common cause of AKI. Mounting evidence has demonstrated that long non-coding RNAs (lncRNAs) play critical roles in the development and progression of sepsis-induced AKI. In this study, we aimed to illustrate the function and mechanism of lncRNA SNHG14 in lipopolysaccharide (LPS)-induced AKI. We found that SNHG14 was highly expressed in the plasma of sepsis patients with AKI. SNHG14 inhibited cell proliferation and autophagy and promoted cell apoptosis and inflammatory cytokine production in LPS-stimulated HK-2 cells. Functionally, SNHG14 acted as a competing endogenous RNA (ceRNA) to negatively regulate miR-495-3p expression in HK-2 cells. Furthermore, we identified that HIPK1 is a direct target of miR-495-3p in HK-2 cells. We also revealed that the SNHG14/miR-495-3p/HIPK1 interaction network regulated HK-2 cell proliferation, apoptosis, autophagy, and inflammatory cytokine production upon LPS stimulation. In addition, we demonstrated that the SNHG14/miR-495-3p/HIPK1 interaction network regulated the production of inflammatory cytokines (TNF-α, IL-6, and IL-1β) via modulating NF-κB/p65 signaling in LPS-challenged HK-2 cells. In conclusion, our findings suggested a novel therapeutic axis of SNHG14/miR-495-3p/HIPK1 to treat sepsis-induced AKI.
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Affiliation(s)
- Ni Yang
- Department of Emergency, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710004, China
| | - Hai Wang
- Department of Emergency, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710004, China
| | - Li Zhang
- Department of Emergency, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710004, China
| | - Junhua Lv
- Department of Emergency, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710004, China
| | - Zequn Niu
- Department of Emergency, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710004, China
| | - Jie Liu
- Department of Emergency, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710004, China
| | - Zhengliang Zhang
- Department of Emergency, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710004, China
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5
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Inwood S, Abaandou L, Betenbaugh M, Shiloach J. Improved protein expression in HEK293 cells by over-expressing miR-22 and knocking-out its target gene, HIPK1. N Biotechnol 2019; 54:28-33. [PMID: 31425885 DOI: 10.1016/j.nbt.2019.08.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 07/01/2019] [Accepted: 08/15/2019] [Indexed: 02/08/2023]
Abstract
Stable cell lines can continuously produce a recombinant protein without the need to repeatedly engineer the genome. In a previous study HIPK1, Homeodomain-interacting Protein Kinase 1, was found to be a target of the microRNA miR-22 that, when repressed, improved expression of both an intracellular and a secreted protein. In this report, HEK293 cells stably over-expressing miR-22 were compared with HEK293 with knockout of HIPK1, executed by CRISPR/Cas9, for their ability to improve recombinant protein expression. In this model case of luciferase, over-expression of miR-22 improved overall activity 2.4-fold while the HIPK1 knockout improved overall activity 4.7-fold.
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Affiliation(s)
- Sarah Inwood
- Biotechnology Core Laboratory NIDDK, NIH, Bethesda, Maryland, 20892, USA; Department of Chemical and Biomolecular Engineering Johns Hopkins University, Baltimore, Maryland, 21218, USA
| | - Laura Abaandou
- Biotechnology Core Laboratory NIDDK, NIH, Bethesda, Maryland, 20892, USA
| | - Michael Betenbaugh
- Department of Chemical and Biomolecular Engineering Johns Hopkins University, Baltimore, Maryland, 21218, USA
| | - Joseph Shiloach
- Biotechnology Core Laboratory NIDDK, NIH, Bethesda, Maryland, 20892, USA.
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6
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Conte A, Pierantoni GM. Update on the Regulation of HIPK1, HIPK2 and HIPK3 Protein Kinases by microRNAs. Microrna 2018; 7:178-186. [PMID: 29793420 DOI: 10.2174/2211536607666180525102330] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 04/24/2018] [Accepted: 05/21/2018] [Indexed: 11/22/2022]
Abstract
The Homeodomain-Interacting Protein Kinases (HIPKs) HIPK1, HIPK2 and HIPK3 are Ser/Thr kinases which interact with homeobox proteins and other transcription factors, acting as transcriptional coactivators or corepressors. HIPKs contribute to regulate several biological processes, such as signal transduction, apoptosis, embryonic development, DNA-damage response, and cellular proliferation, in response to various extracellular stimuli. Recently it has emerged that, in addition to their role in cancer, fibrosis and diabetes, HIPKs may also be involved in other human diseases, including Amyotrophic Lateral Sclerosis (ALS), Rett syndrome, cerebellar diseases, and retinal vascular dysfunction. METHODS Here, we update our previous paper concerning the regulation of HIPK proteins expression by microRNAs (miRNAs), pointing out the most recent findings about new cellular mechanisms and diseases which are affected by the interplay between HIPKs and miRNAs. CONCLUSION Recently, it has emerged that HIPKs and their related miRNAs are involved in diabetic nephropathy, gastric cancer chemoresistance, cervical cancer progression, and recombinant protein expression in cultured cells. Interestingly, circular RNAs (circRNAs) deriving from HIPK2 and HIPK3 loci also modulate cellular proliferation and viability by sponging several miRNAs, thus emerging as new putative therapeutic targets for diabetes-associated retinal vascular dysfunction, astrogliosis and cancer.
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Affiliation(s)
- Andrea Conte
- Department of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", via 80131, Naples, Italy.,Lymphocyte Nuclear Biology, NIAMS, NIH, Bethesda, MD, United States
| | - Giovanna Maria Pierantoni
- Department of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", via 80131, Naples, Italy
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Liu B, Du R, Zhou L, Xu J, Chen S, Chen J, Yang X, Liu DX, Shao ZM, Zhang L, Yu Z, Xie N, Guan JL, Liu S. miR-200c/141 Regulates Breast Cancer Stem Cell Heterogeneity via Targeting HIPK1/β-Catenin Axis. Am J Cancer Res 2018; 8:5801-5813. [PMID: 30613263 PMCID: PMC6299432 DOI: 10.7150/thno.29380] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 10/09/2018] [Indexed: 01/22/2023] Open
Abstract
Increasing evidence demonstrates the existence of two inter-convertible states of breast cancer stem cells (BCSCs) with distinct behaviors in proliferation and mobility, and the BCSC heterogeneity is accurately regulated by sophisticated mechanisms including microRNAs. The microRNA-200 family including miR-200c/141 cluster was reported to affect cancer cell invasion and metastasis by regulating epithelial to mesenchymal transition (EMT). However, the effect of miR-200 family on BCSC heterogeneity is uncertain. Thus, we investigated whether the miR-200c/141 cluster had different effects on breast tumor growth and metastasis by switching the two states of BCSC. Methods: The spontaneous mammary tumor mouse model with miR-200c/141 conditional knockout was utilized for analyzing the role of miR-200c/141 cluster in vivo. The effect of miR-200c/141 cluster on BCSCs was performed by CD24/CD29 staining and ALDEFLUOR assay. miR-200c/141 target expression and EMT-related marker expression were verified in tumor sections, primary cells and breast cancer cell lines by qRT-PCR or western blotting. Statistical analysis was determined using two-way ANOVA and Student's t-test. All values were presented as the mean ± s.e.m. Results: The deletion of miR-200c/141 cluster regulated BCSC heterogeneity and promoted the EMT-like BCSC generation, which resulted in increased tumor metastasis and inhibited tumor growth by directly upregulating the target gene homeodomain-interacting protein kinase 1 (HIPK1) and sequential β-catenin activation. Conclusions: Our results indicated that miR-200c/141 played biphasic roles in breast tumor progression via affecting the BCSC heterogeneity, suggesting targeting BCSC heterogeneity to simultaneously restrict breast cancer initiation and metastasis could be a promising therapeutic strategy for breast cancer.
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Inwood S, Buehler E, Betenbaugh M, Lal M, Shiloach J. Identifying HIPK1 as Target of miR-22-3p Enhancing Recombinant Protein Production From HEK 293 Cell by Using Microarray and HTP siRNA Screen. Biotechnol J 2017; 13. [PMID: 28987030 DOI: 10.1002/biot.201700342] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 09/11/2017] [Indexed: 01/20/2023]
Abstract
Protein expression from human embryonic kidney cells (HEK 293) is an important tool for structural and clinical studies. It is previously shown that microRNAs (small, noncoding RNAs) are effective means for improved protein expression from these cells, and by conducting a high-throughput screening of the human microRNA library, several microRNAs are identified as potential candidates for improving expression. From these, miR-22-3p is chosen for further study since it increased the expression of luciferase, two membrane proteins and a secreted fusion protein with minimal effect on the cells' growth and viability. Since each microRNA can interact with several gene targets, it is of interest to identify the repressed genes for understanding and exploring the improved expression mechanism for further implementation. Here, the authors describe a novel approach for identification of the target genes by integrating the differential gene expression analysis with information obtained from our previously conducted high-throughput siRNA screening. The identified genes were validated as being involved in improving luciferase expression by using siRNA and qRT-PCR. Repressing the target gene, HIPK1, is found to increase luciferase and GPC3 expression 3.3- and 2.2-fold, respectively.
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Affiliation(s)
- Sarah Inwood
- Biotechnology Core Laboratory NIDDK, NIH, Bethesda, Maryland 20892, USA.,Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, USA
| | - Eugen Buehler
- Chemical Genomics Center, National Center for Advancing Translational Sciences, NIH, Rockville, MD 20850
| | - Michael Betenbaugh
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, USA
| | - Madhu Lal
- Chemical Genomics Center, National Center for Advancing Translational Sciences, NIH, Rockville, MD 20850
| | - Joseph Shiloach
- Biotechnology Core Laboratory NIDDK, NIH, Bethesda, Maryland 20892, USA
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Hashimoto K, Tsuji Y. Arsenic-Induced Activation of the Homeodomain-Interacting Protein Kinase 2 (HIPK2) to cAMP-Response Element Binding Protein (CREB) Axis. J Mol Biol 2016; 429:64-78. [PMID: 27884605 DOI: 10.1016/j.jmb.2016.11.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 10/30/2016] [Accepted: 11/14/2016] [Indexed: 12/14/2022]
Abstract
Cyclic AMP-response element-binding protein (CREB) plays key transcriptional roles in cell metabolism, proliferation, and survival. Ser133 phosphorylation by protein kinase A (PKA) is a well-characterized CREB activation mechanism. Homeodomain-interacting protein kinase (HIPK) 2, a nuclear serine/threonine kinase, activates CREB through Ser271 phosphorylation; however, the regulatory mechanism remains uncharacterized. Transfection of CREB in HEK293 cells together with the kinase demonstrated that HIPK2 phosphorylated CREB at Ser271 but not Ser133; likewise, PKA phosphorylated CREB at Ser133 but not Ser271, suggesting two distinct CREB regulatory mechanisms by HIPK2 and PKA. In vitro kinase assay revealed that HIPK2, and HIPK1 and HIPK3, directly phosphorylated CREB. Cells exposed to 10μM sodium arsenite increased the stability of HIPK1 and HIPK2 proteins, leading to CREB activation via Ser271 phosphorylation. Phospho-Ser271 CREB showed facilitated interaction with the TFIID subunit coactivator TAF4 assessed by immunoprecipitation. Furthermore, a focused gene array between cells transfected with CREB alone and CREB plus HIPK2 over empty vector-transfected control displayed 14- and 32-fold upregulation of cyclin A1, respectively, while no upregulation was displayed by HIPK2 alone. These results suggest that the HIPK2-phospho-Ser271 CREB axis is a new arsenic-responsive CREB activation mechanism in parallel with the PKA-phospho-Ser133 CREB axis.
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Affiliation(s)
- Kazunori Hashimoto
- Department of Biological Sciences, North Carolina State University, Campus Box 7633, Raleigh, NC 27695, USA
| | - Yoshiaki Tsuji
- Department of Biological Sciences, North Carolina State University, Campus Box 7633, Raleigh, NC 27695, USA.
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10
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Rey C, Soubeyran I, Mahouche I, Pedeboscq S, Bessede A, Ichas F, De Giorgi F, Lartigue L. HIPK1 drives p53 activation to limit colorectal cancer cell growth. Cell Cycle 2013; 12:1879-91. [PMID: 23676219 DOI: 10.4161/cc.24927] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
HIPK1 (homeodomain interacting protein kinase 1) is a serine/threonine kinase that belongs to the CMGC superfamily. Emerging data point to the role of HIPK1 in cancer, but it is still not clear whether it acts as a tumor suppressor or promoter. Here we identified HIPK1 as a kinase that is significantly overexpressed in colorectal cancer (CRC) and whose expression is stage-dependent. Being abundantly expressed at the onset of the disease, the HIPK1 level gradually decreased as tumor stage progressed. To further uncover how this factor regulates tumorigenesis and establish whether it constitutes an early factor necessary for neoplastic transformation or for cellular defense, we studied the effect of its overexpression in vitro by investigating various cancer-related signaling cascades. We found that HIPK1 mostly regulates the p53 signaling pathway both in HCT116 and HeLa cells. By phosphorylating p53 on its serine-15, HIPK1 favored its transactivation potential, which led to a rise in p21 protein level and a decline in cell proliferation. Assuming that HIPK1 could impede CRC growth by turning on the p53/p21 pathway, we then checked p21 mRNA levels in patients. Interestingly, p21 transcripts were only increased in a subset of patients expressing high levels of HIPK1. Unlike the rest of the cohort, the majority of these patients hosted a native p53 protein, meaning that such a pro-survival pathway (HIPK1+ > p53 > p21) is active in patients, and that HIPK1 acts rather as a tumor suppressor.
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Affiliation(s)
- Christophe Rey
- INSERM U916, Institut Bergonié, Université de Bordeaux, Bordeaux, France
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