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Pasha A, Kumar K, Heena SK, Arnold Emerson I, Pawar SC. Inhibition of NF-kB and COX-2 by andrographolide regulates the progression of cervical cancer by promoting PTEN expression and suppressing PI3K/AKT signalling pathway. Sci Rep 2024; 14:12020. [PMID: 38797813 PMCID: PMC11128455 DOI: 10.1038/s41598-024-57304-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Accepted: 03/16/2024] [Indexed: 05/29/2024] Open
Abstract
In the face of recent advances in Cervical cancer (CC) treatment, therapeutic and surgical procedures for CC management are still inadequate. In the current study for the first time Andrographolide (Andro) has been explored for its multitarget therapeutic efficacy on NF-kB, COX-2, and PI3K/AKT expressions together in CC. The expression levels of NF-kB, COX-2, PI3K and PTEN in the CC patient samples, both at mRNA and protein levels have shown significant association with poor survival and increased tumor aggressiveness. The binding efficacy of Andro was investigated using molecular docking and molecular dynamic simulations, and the protein and ligand complex for NF-kB and COX-2 has shown high binding energy. Andro displayed cytotoxicity by impeding the in-vitro proliferation of CC cells. Andro significantly supressed the NF-kB, COX-2, and PI3K expression and enhanced the expression levels of PTEN at protein levels in-vitro. Andro induced apoptosis in a dose dependent manner and significantly inhibited the migration and invasion of CC cells. Andro exhibited similar activity in-vivo and suppressed the CC tumor growth in xenograft C57BL/6 mice model. The anti-tumor activity of Andro, both in-vitro and in-vivo has shown considerable downregulation of NF-kB and COX-2 and induced apoptosis through impeding the PI3K/AKT signalling pathway. These findings from the above study projects, administration of Andro as an effective alternate safe compound to curtail and impede cervical cancer progression.
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Affiliation(s)
- Akbar Pasha
- Department of Genetics and Biotechnology, University College of Science, Osmania University, Hyderabad, Telangana, 500007, India
| | - Kiran Kumar
- Department of Bioinformatics, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India
| | - S K Heena
- Department of Pathology, Osmania Medical College, Hyderabad, Telangana, 500095, India
| | - I Arnold Emerson
- Department of Bioinformatics, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India
| | - Smita C Pawar
- Department of Genetics and Biotechnology, University College of Science, Osmania University, Hyderabad, Telangana, 500007, India.
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Otsuji R, Fujioka Y, Hata N, Kuga D, Hatae R, Sangatsuda Y, Nakamizo A, Mizoguchi M, Yoshimoto K. Liquid Biopsy for Glioma Using Cell-Free DNA in Cerebrospinal Fluid. Cancers (Basel) 2024; 16:1009. [PMID: 38473369 DOI: 10.3390/cancers16051009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 02/24/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024] Open
Abstract
Glioma is one of the most common primary central nervous system (CNS) tumors, and its molecular diagnosis is crucial. However, surgical resection or biopsy is risky when the tumor is located deep in the brain or brainstem. In such cases, a minimally invasive approach to liquid biopsy is beneficial. Cell-free DNA (cfDNA), which directly reflects tumor-specific genetic changes, has attracted attention as a target for liquid biopsy, and blood-based cfDNA monitoring has been demonstrated for other extra-cranial cancers. However, it is still challenging to fully detect CNS tumors derived from cfDNA in the blood, including gliomas, because of the unique structure of the blood-brain barrier. Alternatively, cerebrospinal fluid (CSF) is an ideal source of cfDNA and is expected to contribute significantly to the liquid biopsy of gliomas. Several successful studies have been conducted to detect tumor-specific genetic alterations in cfDNA from CSF using digital PCR and/or next-generation sequencing. This review summarizes the current status of CSF-based cfDNA-targeted liquid biopsy for gliomas. It highlights how the approaches differ from liquid biopsies of other extra-cranial cancers and discusses the current issues and prospects.
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Affiliation(s)
- Ryosuke Otsuji
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Yutaka Fujioka
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Nobuhiro Hata
- Department of Neurosurgery, Oita University Faculty of Medicine, Yufu 879-5593, Japan
| | - Daisuke Kuga
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Ryusuke Hatae
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Yuhei Sangatsuda
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Akira Nakamizo
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Masahiro Mizoguchi
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
- Department of Neurosurgery, National Hospital Organization Kyushu Medical Center, Clinical Research Institute, Fukuoka 810-8563, Japan
| | - Koji Yoshimoto
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
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Lee CL, Cremona M, Farrelly A, Workman JA, Kennedy S, Aslam R, Carr A, Madden S, O’Neill B, Hennessy BT, Toomey S. Preclinical evaluation of the CDK4/6 inhibitor palbociclib in combination with a PI3K or MEK inhibitor in colorectal cancer. Cancer Biol Ther 2023; 24:2223388. [PMID: 37326340 PMCID: PMC10281467 DOI: 10.1080/15384047.2023.2223388] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 03/28/2023] [Accepted: 06/06/2023] [Indexed: 06/17/2023] Open
Abstract
BACKGROUND Studies have demonstrated the efficacy of Palbociclib (CDK 4/6 inhibitor), Gedatolisib (PI3K/mTOR dual inhibitor) and PD0325901 (MEK1/2 inhibitor) in colorectal cancer (CRC), however single agent therapeutics are often limited by the development of resistance. METHODS We compared the anti-proliferative effects of the combination of Gedatolisib and Palbociclib and Gedatolisib and PD0325901 in five CRC cell lines with varying mutational background and tested their combinations on total and phosphoprotein levels of signaling pathway proteins. RESULTS The combination of Palbociclib and Gedatolisib was superior to the combination of Palbociclib and PD0325901. The combination of Palbociclib and Gedatolisib had synergistic anti-proliferative effects in all cell lines tested [CI range: 0.11-0.69] and resulted in the suppression of S6rp (S240/244), without AKT reactivation. The combination of Palbociclib and Gedatolisib increased BAX and Bcl-2 levels in PIK3CA mutated cell lines. The combination of Palbociclib and Gedatolisib caused MAPK/ERK reactivation, as seen by an increase in expression of total EGFR, regardless of the mutational status of the cells. CONCLUSION This study shows that the combination of Palbociclib and Gedatolisib has synergistic anti-proliferative effects in both wild-type and mutated CRC cell lines. Separately, the phosphorylation of S6rp may be a promising biomarker of responsiveness to this combination.
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Affiliation(s)
- Cha Len Lee
- Medical Oncology Group, Department of Molecular Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Mattia Cremona
- Medical Oncology Group, Department of Molecular Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Angela Farrelly
- Medical Oncology Group, Department of Molecular Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Julie A. Workman
- Medical Oncology Group, Department of Molecular Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Sean Kennedy
- Medical Oncology Group, Department of Molecular Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Razia Aslam
- Medical Oncology Group, Department of Molecular Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Aoife Carr
- Medical Oncology Group, Department of Molecular Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Stephen Madden
- Data Science Centre, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Brian O’Neill
- Department of Radiation Oncology, St. Luke’s Radiation Oncology Centre, Beaumont Hospital, Dublin 9, Ireland
| | - Bryan T. Hennessy
- Medical Oncology Group, Department of Molecular Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Sinead Toomey
- Medical Oncology Group, Department of Molecular Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
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Li H, Lin W, Zhang G, Liu R, Qu M, Zhang J, Xing X. BMSC-exosomes miR-25-3p Regulates the p53 Signaling Pathway Through PTEN to Inhibit Cell Apoptosis and Ameliorate Liver Ischemia‒reperfusion Injury. Stem Cell Rev Rep 2023; 19:2820-2836. [PMID: 37594613 DOI: 10.1007/s12015-023-10599-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/18/2023] [Indexed: 08/19/2023]
Abstract
BACKGROUND Hepatic ischemia‒reperfusion injury (HIRI) is a pathological phenomenon during liver surgery, and bone marrow-mesenchymal stem cell (BMSC) exosomes (BMSC-Exos) regulate cell apoptosis and reduce ischemia‒reperfusion injury. We aimed to investigate the roles of BMSC-Exos and miR-25b-3p (enriched in BMSC-Exos) in HIRI and elucidate the underlying mechanisms. APPROACHES AND RESULTS An HIRI mouse model was constructed and preinjected with BMSC-Exos, agomir-miR-25, agomir-miR-NC, or PBS via the tail vein. Compared with mice with HIRI, mice with HIRI preinjected with BMSC-Exos had significantly decreased alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels and alleviated liver necrosis (P < 0.05). Quantitative hepatic transcriptomics showed that mice with HIRI preinjected with BMSC-Exos exhibited increased cell division, hematopoietic or lymphoid organ development and metabolic processes. miRNA sequencing of BMSC-Exos revealed that miR-25, which is related to I/R injury, was enriched in the exosomes. Compared with HIRI + NC mice, HIRI + miR-25b-3p mice had significantly increased miR-25b-3p expression, decreased ALT/AST levels and apoptosis-related protein expression (P < 0.05), and alleviated liver necrosis. The proliferation of AML-12 cells transfected with miR-25b-3p was significantly higher than that in the mimic NC group (P < 0.01) after hypoxia induction, and the apoptosis rate of cells was significantly lower than that in the NC group (P < 0.01). PTEN was identified as a miR-25b-3p target gene. PTEN expression was significantly diminished in miR-25b-3p-transfected AML12 cells (P < 0.05). HIRI + agomir-miR-25 mice displayed reduced PTEN expression and decreased p53 and cleaved caspase 3 levels compared to HIRI + NC mice. CONCLUSIONS We revealed the roles and underlying mechanisms of BMSC-Exos and miR-25 in HIRI, contributing to the prevention and treatment of HIRI.
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Affiliation(s)
- Hongnan Li
- Department of Public Health, Guilin Medical University, Zhiyuan Rd, Lingui District, Guilin, 541199, Guangxi, China
| | - Weidong Lin
- School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Guangzhi Zhang
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Runsheng Liu
- Department of Public Health, Guilin Medical University, Zhiyuan Rd, Lingui District, Guilin, 541199, Guangxi, China
| | - Minghai Qu
- Department of Public Health, Guilin Medical University, Zhiyuan Rd, Lingui District, Guilin, 541199, Guangxi, China
| | - Jiayang Zhang
- Department of Public Health, Guilin Medical University, Zhiyuan Rd, Lingui District, Guilin, 541199, Guangxi, China
| | - Xuekun Xing
- Department of Public Health, Guilin Medical University, Zhiyuan Rd, Lingui District, Guilin, 541199, Guangxi, China.
- Guangxi Key Laboratory of Environmental Exposomics and Entire Lifecycle Health Research, Guilin Medical University, Guilin, 541199, Guangxi, China.
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5
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Rana PS, Goparaju K, Driscoll JJ. Shutting off the fuel supply to target metabolic vulnerabilities in multiple myeloma. Front Oncol 2023; 13:1141851. [PMID: 37361580 PMCID: PMC10285382 DOI: 10.3389/fonc.2023.1141851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 05/18/2023] [Indexed: 06/28/2023] Open
Abstract
Pathways that govern cellular bioenergetics are deregulated in tumor cells and represent a hallmark of cancer. Tumor cells have the capacity to reprogram pathways that control nutrient acquisition, anabolism and catabolism to enhance their growth and survival. Tumorigenesis requires the autonomous reprogramming of key metabolic pathways that obtain, generate and produce metabolites from a nutrient-deprived tumor microenvironment to meet the increased bioenergetic demands of cancer cells. Intra- and extracellular factors also have a profound effect on gene expression to drive metabolic pathway reprogramming in not only cancer cells but also surrounding cell types that contribute to anti-tumor immunity. Despite a vast amount of genetic and histologic heterogeneity within and between cancer types, a finite set of pathways are commonly deregulated to support anabolism, catabolism and redox balance. Multiple myeloma (MM) is the second most common hematologic malignancy in adults and remains incurable in the vast majority of patients. Genetic events and the hypoxic bone marrow milieu deregulate glycolysis, glutaminolysis and fatty acid synthesis in MM cells to promote their proliferation, survival, metastasis, drug resistance and evasion of immunosurveillance. Here, we discuss mechanisms that disrupt metabolic pathways in MM cells to support the development of therapeutic resistance and thwart the effects of anti-myeloma immunity. A better understanding of the events that reprogram metabolism in myeloma and immune cells may reveal unforeseen vulnerabilities and advance the rational design of drug cocktails that improve patient survival.
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Affiliation(s)
- Priyanka S. Rana
- Division of Hematology and Oncology, Department of Medicine, Case Western Reserve University, Cleveland, OH, United States
- Immune Oncology Program, Case Comprehensive Cancer Center, Cleveland, OH, United States
| | - Krishna Goparaju
- Division of Hematology and Oncology, Department of Medicine, Case Western Reserve University, Cleveland, OH, United States
- Adult Hematologic Malignancies & Stem Cell Transplant Section, Seidman Cancer Center, University Hospitals Cleveland Medical Center, Cleveland, OH, United States
| | - James J. Driscoll
- Division of Hematology and Oncology, Department of Medicine, Case Western Reserve University, Cleveland, OH, United States
- Immune Oncology Program, Case Comprehensive Cancer Center, Cleveland, OH, United States
- Adult Hematologic Malignancies & Stem Cell Transplant Section, Seidman Cancer Center, University Hospitals Cleveland Medical Center, Cleveland, OH, United States
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6
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Cheung SKK, Kwok J, Or PMY, Wong CW, Feng B, Choy KW, Chang RCC, Burbach JPH, Cheng ASL, Chan AM. Neuropathological signatures revealed by transcriptomic and proteomic analysis in Pten-deficient mouse models. Sci Rep 2023; 13:6763. [PMID: 37185447 PMCID: PMC10130134 DOI: 10.1038/s41598-023-33869-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 04/20/2023] [Indexed: 05/17/2023] Open
Abstract
PTEN hamartoma tumour syndrome is characterised by mutations in the human PTEN gene. We performed transcriptomic and proteomic analyses of neural tissues and primary cultures from heterozygous and homozygous Pten-knockout mice. The somatosensory cortex of heterozygous Pten-knockout mice was enriched in immune response and oligodendrocyte development Gene Ontology (GO) terms. Parallel proteomic analysis revealed differentially expressed proteins (DEPs) related to dendritic spine development, keratinisation and hamartoma signatures. However, primary astrocytes (ASTs) from heterozygous Pten-knockout mice were enriched in the extracellular matrix GO term, while primary cortical neurons (PCNs) were enriched in immediate-early genes. In ASTs from homozygous Pten-knockout mice, cilium-related activity was enriched, while PCNs exhibited downregulation of forebrain neuron generation and differentiation, implying an altered excitatory/inhibitory balance. By integrating DEPs with pre-filtered differentially expressed genes, we identified the enrichment of traits of intelligence, cognitive function and schizophrenia, while DEPs in ASTs were significantly associated with intelligence and depression.
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Affiliation(s)
- Stanley K K Cheung
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Jacinda Kwok
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, SAR, China
- Department of Pharmaceutical Sciences, University of Toronto, Toronto, Canada
| | - Penelope M Y Or
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Chi Wai Wong
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, SAR, China
- Louvain Institute of Biomolecular Science and Technology, Université catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Bo Feng
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Kwong Wai Choy
- Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Raymond C C Chang
- Laboratory of Neurodegenerative Diseases, School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, SAR, China
| | - J Peter H Burbach
- Department of Translational Neuroscience, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Alfred S L Cheng
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Andrew M Chan
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, SAR, China.
- Brain and Mind Institute, The Chinese University of Hong Kong, 4/F, Hui Yeung Shing Building, Hong Kong, SAR, China.
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7
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Alelaimat M, Al-Sha’er MA, Basheer HA. Novel Sulfonamide-Triazine Hybrid Derivatives: Docking, Synthesis, and Biological Evaluation as Anticancer Agents. ACS OMEGA 2023; 8:14247-14263. [PMID: 37091406 PMCID: PMC10116527 DOI: 10.1021/acsomega.3c01273] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 03/23/2023] [Indexed: 05/03/2023]
Abstract
The biological benefits of trisubstituted 1,3,5-triazine derivatives include their ability to reduce inflammation and fight cancer. A unique series of sulfonamide-triazine hybrid molecules were produced chemically by synthesizing triazine derivatives utilizing the usual nucleophilic aromatic substitution of cyanuric chloride via the solvent-free/neat fusion method. Fourier-transform infrared spectroscopy (FTIR), 1H NMR, and 13C NMR spectroscopic analyses were used to identify novel trisubstituted synthetic compounds. The synthesized compounds have a moderate inhibition percentage when tested at 100 μM against the phosphoinositol 3-kinases (PI3Kα) enzyme; compounds 20 and 34 showed 46 and 68% anti-PI3Kα activity, respectively. To comprehend the anticipated interactions, the most successful compounds were subsequently docked into a PI3Kα protein's binding site (PDB code: 6OAC, resolution: 3.15 Å). The final synthetic compounds' anticancer activity was tested on the breast (MCF-7) and lung (A549) cancer cell lines at doses of 100 and 50 μM for additional evaluation of anticancer characteristics. The IC50 values for the sulfaguanidine-triazine derivatives 27, 28, 29, 31, and 35 ranged from 14.8 to 33.2 μM, showing that compounds containing sulfaguanidine and diethylamine in their structures significantly inhibited the activity. Compound 34 could be a promising lead compound for developing new target-selected anticancer compounds with low toxicity and high selectivity.
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Affiliation(s)
- Mahmoud
A. Alelaimat
- Pharmaceutical
Chemistry Department, Faculty of Pharmacy, Zarqa University, Zarqa 13132, Jordan
| | - Mahmoud A. Al-Sha’er
- Pharmaceutical
Chemistry Department, Faculty of Pharmacy, Zarqa University, Zarqa 13132, Jordan
- . Tel: 0096253821100 ext.
1998. Fax: 0096253821120
| | - Haneen A. Basheer
- Clinical
Pharmacy Department, Faculty of Pharmacy, Zarqa University, Zarqa 13132, Jordan
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Moslehi M, Rezaei S, Talebzadeh P, Ansari MJ, Jawad MA, Jalil AT, Rastegar-Pouyani N, Jafarzadeh E, Taeb S, Najafi M. Apigenin in cancer therapy: Prevention of genomic instability and anticancer mechanisms. Clin Exp Pharmacol Physiol 2023; 50:3-18. [PMID: 36111951 DOI: 10.1111/1440-1681.13725] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 08/18/2022] [Accepted: 09/14/2022] [Indexed: 12/13/2022]
Abstract
The incidence of cancer has been growing worldwide. Better survival rates following the administration of novel drugs and new combination therapies may concomitantly cause concern regarding the long-term adverse effects of cancer therapy, for example, second primary malignancies. Moreover, overcoming tumour resistance to anticancer agents has been long considered as a critical challenge in cancer research. Some low toxic adjuvants such as herb-derived molecules may be of interest for chemoprevention and overcoming the resistance of malignancies to cancer therapy. Apigenin is a plant-derived molecule with attractive properties for chemoprevention, for instance, promising anti-tumour effects, which may make it a desirable adjuvant to reduce genomic instability and the risks of second malignancies among normal tissues. Moreover, it may improve the efficiency of anticancer modalities. This paper aims to review various effects of apigenin in both normal tissues and malignancies. In addition, we explain how apigenin may have the ability to protect usual cells against the genotoxic repercussions following radiotherapy and chemotherapy. Furthermore, the inhibitory effects of apigenin on tumours will be discussed.
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Affiliation(s)
- Masoud Moslehi
- Department of Medical Physics, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sepideh Rezaei
- Department of Chemistry, University of Houston, Houston, Texas, USA
| | - Pourya Talebzadeh
- Student Research Committee, Tehran Medical Faculty, Islamic Azad University, Tehran, Iran
| | - Mohammad Javed Ansari
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-kharj, Saudi Arabia
| | | | - Abduladheem Turki Jalil
- Medical Laboratories Techniques Department, Al-Mustaqbal University College, Babylon, Hilla, Iraq
| | - Nima Rastegar-Pouyani
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Emad Jafarzadeh
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Shahram Taeb
- Department of Radiology, School of Paramedical Sciences, Guilan University of Medical Sciences, Rasht, Iran.,Medical Biotechnology Research Center, School of Paramedical Sciences, Guilan University of Medical Sciences, Rasht, Iran
| | - Masoud Najafi
- Medical Technology Research Center, Institute of Health Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran
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9
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Li X, Bu F, Ma S, Cananzi F, Zhao Y, Xiao M, Min L, Luo C. The Janus-faced role of TRPM2-S in retroperitoneal liposarcoma via increasing ROS levels. Cell Commun Signal 2022; 20:128. [PMID: 36008839 PMCID: PMC9404563 DOI: 10.1186/s12964-022-00873-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 04/05/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Retroperitoneal liposarcoma (RPLS) is a specific soft tissue sarcoma with a high recurrence rate. The short isoform of transient receptor potential cation channel subfamily M member 2 (TRPM2-S) plays an important role in the regulation of reactive oxygen species (ROS). However, the association between TRPM2-S and RPLS and its underlying mechanisms remains unclear. METHODS The expression of both TRPM2-S and TRPM2-L in RPLS tissues was verified by kimmunohistochemistry (IHC). The regulation on Ca2+ influx by TRPM2-S was evaluated by Fluo-4 AM staining. The effect of TRPM2-S on cell proliferation and apoptosis was tested by 5-Ethynyl-2'-deoxyuridine (EdU) staining and Flow cytometry respectively. The level of cellular ROS was assessed by the DCFH-DA probe. Different concentrations of H2O2 were used to provide oxidative stress on RPLS cells. The underlying mechanisms were further explored by Western blotting. RESULTS The IHC assays showed that TRPM2-S, but not TRPM2-L, was prognostic in RPLS. Low TRPM2-S level was associated with poor disease-free survival (DFS). Calcium influx signal intensity was significantly decreased under TRPM2-S overexpression, which resulted in a decrease in the levels of FOXO3a and PTEN. Correspondingly, the levels of pERK, pAKT, pP65, pGSK-3β, Bcl-2, and β-catenin were upregulated, and cellular ROS was gently increased under TRPM2-S overexpression. Moreover, TRPM2-S slightly promoted cell proliferation and inhibited apoptosis of RPLS cell lines under normoxia, but largely increased apoptosis rates under oxidative stress. The cleaved caspase3 was significantly upregulated by TRPM2-S overexpression under oxidative stress. N-Acetyl-L-cysteine (NAC), a small molecule antioxidant, could largely rescue RPLS cells from the apoptosis induced by H2O2. CONCLUSION TRPM2-S exerts Janus-faced effects in RPLS by increasing the ROS levels via inhibition on FOXO3a, which promotes cell proliferation under normoxia but induces apoptosis under oxidative stress. Video abstract.
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Affiliation(s)
- Xiangji Li
- Department of Retroperitoneal Tumor Surgery, Peking University International Hospital, Peking University Eighth School of Clinical Medicine, Beijing, 102206, People's Republic of China.,Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, Beijing Key Laboratory for Precancerous Lesion of Digestive Disease, Beijing, 100050, People's Republic of China
| | - Fanqin Bu
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, Beijing Key Laboratory for Precancerous Lesion of Digestive Disease, Beijing, 100050, People's Republic of China
| | - Shixiang Ma
- Department of Retroperitoneal Tumor Surgery, Peking University International Hospital, Peking University Eighth School of Clinical Medicine, Beijing, 102206, People's Republic of China
| | - Ferdinando Cananzi
- Department of Biomedical Sciences, Humanitas University, 20089, Milan, Italy
| | - Yu Zhao
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, Beijing Key Laboratory for Precancerous Lesion of Digestive Disease, Beijing, 100050, People's Republic of China
| | - Mengmeng Xiao
- Department of Retroperitoneal Tumor Surgery, Peking University International Hospital, Peking University Eighth School of Clinical Medicine, Beijing, 102206, People's Republic of China.
| | - Li Min
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, Beijing Key Laboratory for Precancerous Lesion of Digestive Disease, Beijing, 100050, People's Republic of China.
| | - Chenghua Luo
- Department of Retroperitoneal Tumor Surgery, Peking University International Hospital, Peking University Eighth School of Clinical Medicine, Beijing, 102206, People's Republic of China.
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10
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Zhao X, Ren L, Wang X, Han G, Wang S, Yao Q, Qi Y. Benzoyl‑xanthone derivative induces apoptosis in MCF‑7 cells by binding TRAF6. Exp Ther Med 2021; 23:181. [PMID: 35069862 PMCID: PMC8764895 DOI: 10.3892/etm.2021.11104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 11/29/2021] [Indexed: 11/09/2022] Open
Abstract
TNF receptor-associated factor 6 (TRAF6) has been reported to be associated with the development of cancer. Nevertheless, the exact role of TRAF6 in cancer remains unclear. The purpose of the present study was to explore the mechanism of 2-benzoyl-3-hydroxy-4-methyl-9H-xanthen-9-one leading to the inhibition of the activation of AKT and TGF-β-activated kinase 1 (TAK1), and to the apoptosis of MCF-7 cells. Using a computational docking program and examination of AKT and TAK1 level changes, a new small molecule was identified, 2-benzoyl-3-hydroxy-4-methyl-9H-xanthen-9-one, which competitively bound to TRAF6. Next, the effect of this new compound on MCF-7 cells' biological behavior was studied in vitro. MTT assays were used to investigate cell viability; flow cytometry and invasion assays were performed to detect early apoptosis and invasion in MCF-7 cells, respectively. Immunoprecipitation, western blotting and caspase-3/9 activity assays were carried out to explore changes in protein expression. Briefly, the present data indicated that 2-benzoyl-3-hydroxy-4-methyl-9H-xanthen-9-one could suppress proliferation, induce early apoptosis and inhibit invasion in MCF-7 cells by suppressing the expression of Bcl-2 and promoting the expression of Bax, caspase-9, and caspase-3. These findings indicated that 2-benzoyl-3-hydroxy-4-methyl-9H-xanthen-9-one could induce apoptosis by inhibiting the activation of AKT and TAK1, and affecting the Bcl-2/Bax-caspase-9-caspase-3 pathway by competitively binding with TRAF6.
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Affiliation(s)
- Xuan Zhao
- Department of Chemical Engineering, Shijiazhuang University, Shijiazhuang, Hebei 050035, P.R. China
| | - Limei Ren
- Department of Chemical Engineering, Shijiazhuang University, Shijiazhuang, Hebei 050035, P.R. China
| | - Xiaoru Wang
- Department of Chemical Engineering, Shijiazhuang University, Shijiazhuang, Hebei 050035, P.R. China
| | - Guangxin Han
- Department of Chemical Engineering, Shijiazhuang University, Shijiazhuang, Hebei 050035, P.R. China
| | - Shuo Wang
- Department of Pathology and Key Laboratory of Kidney of Hebei Medical University, Shijiazhuang, Hebei 050035, P.R. China
| | - Qingguo Yao
- Department of Chemical Engineering, Shijiazhuang University, Shijiazhuang, Hebei 050035, P.R. China
| | - Yonghao Qi
- Department of Chemical Engineering, Shijiazhuang University, Shijiazhuang, Hebei 050035, P.R. China
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11
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Aagab acts as a novel regulator of NEDD4-1-mediated Pten nuclear translocation to promote neurological recovery following hypoxic-ischemic brain damage. Cell Death Differ 2021; 28:2367-2384. [PMID: 33712741 PMCID: PMC8328997 DOI: 10.1038/s41418-021-00757-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 02/13/2021] [Accepted: 02/15/2021] [Indexed: 01/31/2023] Open
Abstract
Hypoxic-ischemic encephalopathy (HIE) is a main cause of mortality and severe neurologic impairment in the perinatal and neonatal period. However, few satisfactory therapeutic strategies are available. Here, we reported that a rapid nuclear translocation of phosphatase and tensin homolog deleted on chromosome TEN (PTEN) is an essential step in hypoxic-ischemic brain damage (HIBD)- and oxygen-glucose deprivation (OGD)-induced neuronal injures both in vivo and in vitro. In addition, we found that OGD-induced nuclear translocation of PTEN is dependent on PTEN mono-ubiquitination at the lysine 13 residue (K13) that is mediated by neural precursor cell expressed developmentally downregulated protein 4-1 (NEDD4-1). Importantly, we for the first time identified α- and γ-adaptin binding protein (Aagab) as a novel NEDD4-1 regulator to regulate the level of NEDD4-1, subsequently mediating Pten nuclear translocation. Finally, we demonstrated that genetic upregulation of Aagab or application of Tat-K13 peptide (a short interference peptide that flanks K13 residue of PTEN) not only reduced Pten nuclear translocation, but also significantly alleviated the deficits of myodynamia, motor and spatial learning and memory in HIBD model rats. These results suggest that Aagab may serve as a regulator of NEDD4-1-mediated Pten nuclear translocation to promote functional recovery following HIBD in neonatal rats, and provide a new potential therapeutic target to guide the clinical treatment for HIE.
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12
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White MF, Kahn CR. Insulin action at a molecular level - 100 years of progress. Mol Metab 2021; 52:101304. [PMID: 34274528 PMCID: PMC8551477 DOI: 10.1016/j.molmet.2021.101304] [Citation(s) in RCA: 89] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 07/07/2021] [Accepted: 07/13/2021] [Indexed: 12/15/2022] Open
Abstract
The discovery of insulin 100 years ago and its application to the treatment of human disease in the years since have marked a major turning point in the history of medicine. The availability of purified insulin allowed for the establishment of its physiological role in the regulation of blood glucose and ketones, the determination of its amino acid sequence, and the solving of its structure. Over the last 50 years, the function of insulin has been applied into the discovery of the insulin receptor and its signaling cascade to reveal the role of impaired insulin signaling-or resistance-in the progression of type 2 diabetes. It has also become clear that insulin signaling can impact not only classical insulin-sensitive tissues, but all tissues of the body, and that in many of these tissues the insulin signaling cascade regulates unexpected physiological functions. Despite these remarkable advances, much remains to be learned about both insulin signaling and how to use this molecular knowledge to advance the treatment of type 2 diabetes and other insulin-resistant states.
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Affiliation(s)
- Morris F White
- Boston Children's Hospital and Harvard Medical School, Boston, MA, 02215, USA.
| | - C Ronald Kahn
- Joslin Diabetes Center, Harvard Medical School, Boston, MA, 02215, USA.
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13
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Longo F, Klann E. Reciprocal control of translation and transcription in autism spectrum disorder. EMBO Rep 2021; 22:e52110. [PMID: 33977633 DOI: 10.15252/embr.202052110] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 02/20/2021] [Accepted: 04/19/2021] [Indexed: 12/11/2022] Open
Abstract
Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by deficits in social communication and the presence of restricted patterns of interest and repetitive behaviors. ASD is genetically heterogeneous and is believed to be caused by both inheritable and de novo gene variations. Studies have revealed an extremely complex genetic landscape of ASD, favoring the idea that mutations in different clusters of genes interfere with interconnected downstream signaling pathways and circuitry, resulting in aberrant behavior. In this review, we describe a select group of candidate genes that represent both syndromic and non-syndromic forms of ASD and encode proteins that are important in transcriptional and translational regulation. We focus on the interplay between dysregulated translation and transcription in ASD with the hypothesis that dysregulation of each synthetic process triggers a feedback loop to act on the other, which ultimately exacerbates ASD pathophysiology. Finally, we summarize findings from interdisciplinary studies that pave the way for the investigation of the cooperative impact of different genes and pathways underlying the development of ASD.
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Affiliation(s)
- Francesco Longo
- Center for Neural Science, New York University, New York, NY, USA
| | - Eric Klann
- Center for Neural Science, New York University, New York, NY, USA
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14
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Histone Deacetylase Inhibitors as Multitarget-Directed Epi-Drugs in Blocking PI3K Oncogenic Signaling: A Polypharmacology Approach. Int J Mol Sci 2020; 21:ijms21218198. [PMID: 33147762 PMCID: PMC7662987 DOI: 10.3390/ijms21218198] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 10/29/2020] [Accepted: 10/29/2020] [Indexed: 12/12/2022] Open
Abstract
Genetic mutations and aberrant epigenetic alterations are the triggers for carcinogenesis. The emergence of the drugs targeting epigenetic aberrations has provided a better outlook for cancer treatment. Histone deacetylases (HDACs) are epigenetic modifiers playing critical roles in numerous key biological functions. Inappropriate expression of HDACs and dysregulation of PI3K signaling pathway are common aberrations observed in human diseases, particularly in cancers. Histone deacetylase inhibitors (HDACIs) are a class of epigenetic small-molecular therapeutics exhibiting promising applications in the treatment of hematological and solid malignancies, and in non-neoplastic diseases. Although HDACIs as single agents exhibit synergy by inhibiting HDAC and the PI3K pathway, resistance to HDACIs is frequently encountered due to activation of compensatory survival pathway. Targeted simultaneous inhibition of both HDACs and PI3Ks with their respective inhibitors in combination displayed synergistic therapeutic efficacy and encouraged the development of a single HDAC-PI3K hybrid molecule via polypharmacology strategy. This review provides an overview of HDACs and the evolution of HDACs-based epigenetic therapeutic approaches targeting the PI3K pathway.
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15
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Tabibzadeh A, Tameshkel FS, Moradi Y, Soltani S, Moradi-Lakeh M, Ashrafi GH, Motamed N, Zamani F, Motevalian SA, Panahi M, Esghaei M, Ajdarkosh H, Mousavi-Jarrahi A, Niya MHK. Signal transduction pathway mutations in gastrointestinal (GI) cancers: a systematic review and meta-analysis. Sci Rep 2020; 10:18713. [PMID: 33127962 PMCID: PMC7599243 DOI: 10.1038/s41598-020-73770-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 09/02/2020] [Indexed: 02/07/2023] Open
Abstract
The present study was conducted to evaluate the prevalence of the signaling pathways mutation rate in the Gastrointestinal (GI) tract cancers in a systematic review and meta-analysis study. The study was performed based on the PRISMA criteria. Random models by confidence interval (CI: 95%) were used to calculate the pooled estimate of prevalence via Metaprop command. The pooled prevalence indices of signal transduction pathway mutations in gastric cancer, liver cancer, colorectal cancer, and pancreatic cancer were 5% (95% CI: 3-8%), 12% (95% CI: 8-18%), 17% (95% CI: 14-20%), and 20% (95% CI: 5-41%), respectively. Also, the mutation rates for Wnt pathway and MAPK pathway were calculated to be 23% (95% CI, 14-33%) and 20% (95% CI, 17-24%), respectively. Moreover, the most popular genes were APC (in Wnt pathway), KRAS (in MAPK pathway) and PIK3CA (in PI3K pathway) in the colorectal cancer, pancreatic cancer, and gastric cancer while they were beta-catenin and CTNNB1 in liver cancer. The most altered pathway was Wnt pathway followed by the MAPK pathway. In addition, pancreatic cancer was found to be higher under the pressure of mutation compared with others based on pooled prevalence analysis. Finally, APC mutations in colorectal cancer, KRAS in gastric cancer, and pancreatic cancer were mostly associated gene alterations.
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Affiliation(s)
- Alireza Tabibzadeh
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Fahimeh Safarnezhad Tameshkel
- Student Research Committee, Iran University of Medical Sciences, Tehran, Iran
- Gastrointestinal and Liver Disease Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Yousef Moradi
- Social Determinants of Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Saber Soltani
- Department of Virology, Tehran University of Medical Sciences, Tehran, Iran
| | - Maziar Moradi-Lakeh
- Gastrointestinal and Liver Disease Research Center, Iran University of Medical Sciences, Tehran, Iran
- Preventive Medicine and Public Health Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - G Hossein Ashrafi
- Cancer Theme SEC Faculty, Kingston University, Penrhyn Road, London, KT1 2EE, UK
| | - Nima Motamed
- Department of Social Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Farhad Zamani
- Gastrointestinal and Liver Disease Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Seyed Abbas Motevalian
- Department of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Mahshid Panahi
- Gastrointestinal and Liver Disease Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Maryam Esghaei
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Hossein Ajdarkosh
- Gastrointestinal and Liver Disease Research Center, Iran University of Medical Sciences, Tehran, Iran
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16
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Alizadeh S, Esmaeili A, Omidi Y. Anti-cancer properties of Escherichia coli Nissle 1917 against HT-29 colon cancer cells through regulation of Bax/Bcl-xL and AKT/PTEN signaling pathways. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2020; 23:886-893. [PMID: 32774810 PMCID: PMC7395184 DOI: 10.22038/ijbms.2020.43016.10115] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Objectives Chemotherapies used to treat colon cancer might often fail due to the emergence of chemoresistance and side effects. Escherichia coli Nissle 1917 (EcN) is a beneficial probiotic, whose molecular mechanisms in the prevention of colon cancer are yet to be fully understood. The present study assessed the anti-cancer effects of EcN treatments in human colorectal cancer, HT-29 cell line, with the analysis of related mechanisms. Materials and Methods The co-culture conditioned-media (CM) of EcN with adenocarcinoma HT-29 cells and heat-inactivated bacteria (HIB) were applied for the treatment of the HT-29 cells. To study the inhibition potential of CM and HIB on cancer cells, various cellular/molecular analyses were implemented, including DAPI-staining and DNA ladder assays, flow cytometry and Real-time quantitative PCR (qPCR), as well as Western blotting analyses. Results Our results indicated that EcN could elicit apoptotic impacts on the colon cancer HT-29 cells by up-regulating PTEN and Bax and down-regulating AKT1 and Bcl-xL genes. Conclusion Based on our findings, EcN is proposed as a useful supplemental probiotic treatment against colon cancer.
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Affiliation(s)
- Siamak Alizadeh
- Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran.,Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Abolghasem Esmaeili
- Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | - Yadollah Omidi
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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17
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p110δ PI3K as a therapeutic target of solid tumours. Clin Sci (Lond) 2020; 134:1377-1397. [DOI: 10.1042/cs20190772] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 05/21/2020] [Accepted: 06/01/2020] [Indexed: 12/12/2022]
Abstract
AbstractFrom the time of first characterization of PI3K as a heterodimer made up of a p110 catalytic subunit and a regulatory subunit, a wealth of evidence have placed the class IA PI3Ks at the forefront of drug development for the treatment of various diseases including cancer. The p110α isoform was quickly brought at the centre of attention in the field of cancer research by the discovery of cancer-specific gain-of-function mutations in PIK3CA gene in a range of human solid tumours. In contrast, p110δ PI3K was placed into the spotlight of immunity, inflammation and haematologic malignancies because of the preferential expression of this isoform in leucocytes and the rare mutations in PIK3CD gene. The last decade, however, several studies have provided evidence showing that the correlation between the PIK3CA mutations and the response to PI3K inhibition is less clear than originally considered, whereas concurrently an unexpected role of p110δ PI3K in solid tumours has being emerging. While PIK3CD is mostly non-mutated in cancer, the expression levels of p110δ protein seem to act as an intrinsic cancer-causing driver in various solid tumours including breast, prostate, colorectal and liver cancer, Merkel-Cell carcinoma, glioblastoma and neurobalstoma. Furthermore, p110δ selective inhibitors are being studied as potential single agent treatments or as combination partners in attempt to improve cancer immunotherapy, with both strategies to shown great promise for the treatment of several solid tumours. In this review, we discuss the evidence implicating the p110δ PI3K in human solid tumours, their impact on the current state of the field and the potential of using p110δ-selective inhibitors as monotherapy or combined therapy in different cancer contexts.
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18
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Hashim D, Gonzalez-Feliciano AG, Ahearn TU, Pettersson A, Barber L, Pernar CH, Ebot EM, Isikbay M, Finn SP, Giovannucci EL, Lis RT, Loda M, Parmigiani G, Lotan T, Kantoff PW, Mucci LA, Graff RE. Family history of prostate cancer and the incidence of ERG- and phosphatase and tensin homolog-defined prostate cancer. Int J Cancer 2020; 146:2694-2702. [PMID: 31318977 DOI: 10.1002/ijc.32577] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 06/18/2019] [Accepted: 06/28/2019] [Indexed: 01/08/2023]
Abstract
Family history is among the strongest known risk factors for prostate cancer (PCa). Emerging data suggest molecular subtypes of PCa, including two somatic genetic aberrations: fusions of androgen-regulated promoters with ERG and, separately, phosphatase and tensin homolog (PTEN) loss. We examined associations between family history and incidence of these subtypes in 44,126 men from the prospective Health Professionals Follow-up Study. ERG and PTEN status were assessed by immunohistochemistry. Multivariable competing risks models were used to estimate hazard ratios (HR) and 95% confidence intervals (CI) for associations between self-reported family history of PCa and molecular subtypes of disease. Thirteen percent of men had a positive family history of PCa at baseline. During a median follow-up of 18.5 years, 5,511 PCa cases were diagnosed. Among them, 888 were assayed for ERG status (47% ERG-positive) and 715 were assayed for PTEN loss (14% PTEN null). Family history was more strongly associated with risk of ERG-negative (HR: 2.15; 95% CI: 1.71-2.70) than ERG-positive (HR: 1.49; 95% CI: 1.13-1.95) disease (pheterogeneity : 0.04). The strongest difference was among men with an affected father (HRERG-negative : 2.09; 95% CI: 1.64-2.66; HRERG-positive : 1.30; 95% CI: 0.96-1.76; pheterogeneity : 0.01). Family history of PCa was positively associated with both PTEN null (HR: 2.10; 95% CI: 1.26-3.49) and PTEN intact (HR: 1.72; 95% CI: 1.39-2.13) PCa (pheterogeneity : 0.47). Our results indicate that PCa family history may be positively associated with PCa in all ERG and PTEN subtypes, suggesting a role of genetic susceptibility in their development. It is possible that ERG-negative disease could be especially associated with positive family history.
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Affiliation(s)
- Dana Hashim
- Icahn School of Medicine at Mount Sinai, Tisch Cancer Institute, New York, NY
| | | | - Thomas U Ahearn
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA.,Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
| | - Andreas Pettersson
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA.,Clinical Epidemiology Unit, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Lauren Barber
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Claire H Pernar
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Ericka M Ebot
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Masis Isikbay
- Department of Surgery, University of California, San Francisco, San Francisco, CA
| | - Stephen P Finn
- Department of Histopathology, St. James's Hospital and Trinity College Dublin Medical School, Dublin, Ireland
| | - Edward L Giovannucci
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA.,Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA.,Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - Rosina T Lis
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
| | - Massimo Loda
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
| | - Giovanni Parmigiani
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA.,Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA
| | - Tamara Lotan
- Department of Pathology, Johns Hopkins Bayview Medical Center, Baltimore, MD
| | - Philip W Kantoff
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Lorelei A Mucci
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA.,Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - Rebecca E Graff
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA.,Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA
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19
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Zhao S, Li X, Yin L, Hou L, Lan J, Zhu X. TCRP1 induces tamoxifen resistance by promoting the activation of SGK1 in MCF‑7 cells. Oncol Rep 2020; 43:2017-2027. [PMID: 32323833 PMCID: PMC7160545 DOI: 10.3892/or.2020.7577] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 03/04/2020] [Indexed: 02/07/2023] Open
Abstract
Tamoxifen is widely used as a highly effective drug for treating estrogen‑receptor (ER) alpha‑positive breast cancer. However, tamoxifen resistance developed during cancer treatment remains a significant challenge. Tongue cancer resistance‑related protein1 (TCRP1), which is recognized as a novel drug target, is related to chemo‑resistance in human cancers, moreover, it is often overexpressed in various cancer cells, such as in lung cancer, breast cancer, and tongue cancer. However, the effects of TCRP1 on tamoxifen‑resistant breast cancer cells and tissues are far from clear. The present study revealed that TCRP1 induced tamoxifen resistance in breast cancer cells. Western blotting, quantitative real‑time polymerase chain reaction (RT‑PCR) and immunohistochemical staining were performed to detect the expression level of TCRP1 in vivo and in vitro between primary breast cancer tissues and tamoxifen‑resistant breast cancer tissues. The data revealed that the expression of TCRP1 was upregulated in the tamoxifen‑resistant breast cancer tissues and human breast cancer cell line, MCF‑7. Further study revealed that knocking down TCRP1 inhibited the growth of MCF‑7 cells with tamoxifen‑resistance (MCF7‑R cells) and induced cell apoptosis. Moreover, TCRP1 promoted serum‑ and glucocorticoid‑inducible kinase 1 (SGK1) activation via phosphorylation of phosphoinositide‑dependent kinase 1 (PDK1) in MCF7‑R cells. In addition, it was also observed that knocking down TCRP1 inhibited tumorigenesis of MCF‑7 cells in nude mice. In conclusion, these data indicated that TCRP1 could induce tamoxifen resistance by regulating the PDK1/SGK1 signaling pathway. Thus, TCRP1 could be explored as a promising candidate for treating tamoxifen‑resistant breast cancer in the future.
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Affiliation(s)
- Shuai Zhao
- Department of Breast and Thyroid Surgery, Wuzhong People's Hospital of Suzhou City, Suzhou, Jiangsu 215128, P.R. China
| | - Xiaohua Li
- Department of Breast and Thyroid Surgery, Wuzhong People's Hospital of Suzhou City, Suzhou, Jiangsu 215128, P.R. China
| | - Lei Yin
- Department of Breast and Thyroid Surgery, Wuzhong People's Hospital of Suzhou City, Suzhou, Jiangsu 215128, P.R. China
| | - Lili Hou
- Department of Breast and Thyroid Surgery, Wuzhong People's Hospital of Suzhou City, Suzhou, Jiangsu 215128, P.R. China
| | - Jing Lan
- Department of General Surgery, The First Hospital Affiliated of Suzhou University, Suzhou, Jiangsu 215006, P.R. China
| | - Xun Zhu
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Suzhou University, Suzhou, Jiangsu 215004, P.R. China
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20
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Wong CW, Wang Y, Liu T, Li L, Cheung SKK, Or PMY, Cheng ASL, Choy KW, Burbach JPH, Feng B, Chang RCC, Chan AM. Autism-associated PTEN missense mutation leads to enhanced nuclear localization and neurite outgrowth in an induced pluripotent stem cell line. FEBS J 2020; 287:4848-4861. [PMID: 32150788 PMCID: PMC7754348 DOI: 10.1111/febs.15287] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 12/24/2019] [Accepted: 03/06/2020] [Indexed: 11/29/2022]
Abstract
Germline mutation in the PTEN gene is the genetic basis of PTEN hamartoma tumor syndrome with the affected individuals harboring features of autism spectrum disorders. Characterizing a panel of 14 autism‐associated PTEN missense mutations revealed reduced protein stability, catalytic activity, and subcellular distribution. Nine out of 14 (64%) PTEN missense mutants had reduced protein expression with most mutations confined to the C2 domain. Selected mutants displayed enhanced polyubiquitination and shortened protein half‐life, but that did not appear to involve the polyubiquitination sites at lysine residues at codon 13 or 289. Analyzing their intrinsic lipid phosphatase activities revealed that 78% (11 out of 14) of these mutants had twofold to 10‐fold reduction in catalytic activity toward phosphatidylinositol phosphate substrates. Analyzing the subcellular localization of the PTEN missense mutants showed that 64% (nine out of 14) had altered nuclear‐to‐cytosol ratios with four mutants (G44D, H123Q, E157G, and D326N) showing greater nuclear localization. The E157G mutant was knocked‐in to an induced pluripotent stem cell line and recapitulated a similar nuclear targeting preference. Furthermore, iPSCs expressing the E157G mutant were more proliferative at the neural progenitor cell stage but exhibited more extensive dendritic outgrowth. In summary, the combination of biological changes in PTEN is expected to contribute to the behavioral and cellular features of this neurodevelopmental disorder.
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Affiliation(s)
- Chi Wai Wong
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yubing Wang
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Tian Liu
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Lisha Li
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | | | - Penelope Mei-Yu Or
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Alfred Sze-Lok Cheng
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Kwong Wai Choy
- Department of Obstetrics and Gynaecology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Johannes Peter Henri Burbach
- Department of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht, The Netherlands
| | - Bo Feng
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Raymond Chuen Chung Chang
- Laboratory of Neurodegenerative Diseases, School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Andrew M Chan
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.,Brain and Mind Institute, The Chinese University of Hong Kong, Hong Kong SAR, China
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21
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Calcitonin receptor is required for T-antigen-induced prostate carcinogenesis. Oncotarget 2020; 11:858-874. [PMID: 32180899 PMCID: PMC7061735 DOI: 10.18632/oncotarget.27495] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 01/30/2020] [Indexed: 11/25/2022] Open
Abstract
Expression of calcitonin (CT) and its receptor (CTR) is frequently elevated in prostate cancer (PC) and activation of CT–CTR axis in non- invasive PC cells induces an invasive phenotype. However, the role of CT-CTR axis in prostate carcinogenesis has not been investigated. We employed a transgenic mouse prostate cancer model that uses long probasin promoter to target the expression of T-antigen in the prostate gland (LPB-Tag) along with CTR knock-out mice (CTRKO) to address this question. We cross-bred LPB-Tag mice with CTRKO to obtain four groups of mice. Prostates of these mice were obtained at the age of 90 days, fixed, paraffin-embedded, and used either for the extraction of RNA or for immunofluorescence. Prostate RNAs from different groups were reverse transcribed and used either for transcription profiling or for qRT-PCR. As expected, prostates of mice with LPB-Tag genotype displayed well-grown tumors with histologic features such as loss of normal morphology and nuclear atypia. WT as well as CTRKO mice displayed normal prostate morphology. Interestingly, LPB-Tag-CTRKO prostates also displayed relatively normal morphology which was indistinguishable from the WT. Microarray analysis as well as qRT-PCR suggested that CTRKO genotype reversed T-antigen-induced silencing of RB and PTEN gene expression as well as T-antigen-induced expression of several enzymes associated with lipid metabolism/ cholesterol biosynthesis, several cancer-related and androgen-regulated genes. The results for the first time identify mechanisms associated CTR-induced prostate carcinogenesis, and raise an exciting possibility of using a potent CT antagonist to attenuate progression of prostate cancer.
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Lin Y, Mao F, Zhang X, Xu D, He Z, Li J, Xiang Z, Zhang Y, Yu Z. TRAF6 suppresses the apoptosis of hemocytes by activating pellino in Crassostrea hongkongensis. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2020; 103:103501. [PMID: 31634519 DOI: 10.1016/j.dci.2019.103501] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 09/25/2019] [Accepted: 09/25/2019] [Indexed: 06/10/2023]
Abstract
Tumor necrosis factor receptor-associated factor 6 (TRAF6), an E3 ubiquitin ligase, participates in both innate and adaptive immunity and regulates the apoptotic process. In this study, we observed that an ortholog of TRAF6 could inhibit the activity of p53 and suppress the apoptotic process in the Hong Kong oyster, Crassostrea hongkongensis. To investigate the possible molecular mechanism of the ChTRAF6-induced antiapoptotic effect, a GST pull-down screening assay was conducted, and ChPellino was found to physically interact with ChTRAF6. In addition, the interaction between them was confirmed by Co-immunoprecipitation. Furthermore, western blotting revealed that the phosphorylation level of ChPellino was decreased after the RNAi of ChTRAF6, demonstrating that ChTRAF6 may be an upstream regulator of Pellino activation. Furthermore, the apoptosis level of hemocytes increased after ChPellino knockdown, and ChPellino overexpression suppressed ChTRAF6-dependent p53 activation. Taken together, these results indicate that ChPellino plays a critical role in suppressing ChTRAF6-dependent anti-apoptosis in the hemocytes of Crassostrea hongkongensis.
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Affiliation(s)
- Yue Lin
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, 510301, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Fan Mao
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, 510301, China; Innovation Academy of South China Sea Ecology and Environmental Engineering (ISEE), Chinese Academy of Sciences, China
| | - Xiangyu Zhang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, 510301, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Duo Xu
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, 510301, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhiying He
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, 510301, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jun Li
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, 510301, China; Innovation Academy of South China Sea Ecology and Environmental Engineering (ISEE), Chinese Academy of Sciences, China
| | - Zhiming Xiang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, 510301, China; Innovation Academy of South China Sea Ecology and Environmental Engineering (ISEE), Chinese Academy of Sciences, China
| | - Yang Zhang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, 510301, China; Innovation Academy of South China Sea Ecology and Environmental Engineering (ISEE), Chinese Academy of Sciences, China.
| | - Ziniu Yu
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, 510301, China; Innovation Academy of South China Sea Ecology and Environmental Engineering (ISEE), Chinese Academy of Sciences, China.
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Song L, Qi Y, Lin M. Long noncoding RNA PLAC2 regulates PTEN in retinoblastoma and participates in the regulation of cancer cell apoptosis. Oncol Lett 2020; 19:2489-2494. [PMID: 32194749 PMCID: PMC7039102 DOI: 10.3892/ol.2020.11314] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 12/12/2019] [Indexed: 12/23/2022] Open
Abstract
Long noncoding RNA placenta-specific 2 (PLAC2) blocks the cancer cell cycle in glioma, suggesting its tumor-suppressive role. The present study aimed to investigate the role of PLAC2 in retinoblastoma (Rb). It was found that PLAC2 was downregulated in Rb tissues and was not affected by the development of Rb. PTEN was also downregulated in Rb and positively correlated with PLAC2. In Rb cells, PLAC2 over-expression resulted in the upregulated expression of PTEN, while PTEN over-expression did not affect PLAC2 expression. PLAC2 and PTEN over-expression caused an increased apoptotic rate of Rb cells. PTEN small interfering RNA silencing led to a decreased apoptotic rate and attenuated the effects of PLAC2 over-expression. Therefore, PLAC2 regulates PTEN in Rb and participates in the regulation of cancer cell apoptosis.
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Affiliation(s)
- Ling Song
- Department of Ophthalmology, Binzhou Hubin Aier Eye Hospital Limited, Binzhou, Shandong 256613, P.R. China
| | - Yueqin Qi
- Department of Ophthalmology, Binzhou Hubin Aier Eye Hospital Limited, Binzhou, Shandong 256613, P.R. China
| | - Ming Lin
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
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PI3K Isoform-Selective Inhibitors in Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1255:165-173. [PMID: 32949399 DOI: 10.1007/978-981-15-4494-1_14] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
PI3K inhibitors are a common area of research in finding a successful treatment of cancer. The PI3K pathway is important for cell growth, apoptosis, cell metabolism, cell survival, and a multitude of other functions. There are multiple isoforms of PI3K that can be broken down into three categories: class I, II, and III. Each isoform has at least one subunit that helps with the functionality of the isoform. Mutations found in the PI3K isoforms are commonly seen in many different types of cancer and the use of inhibitors is being tested to stop the cell survival of cancer cells. Individual PI3K inhibitors have shown some inhibition of the pathway; however, there is room for improvement. To better treat cancer, PI3K inhibitors are being combined with other pathway inhibitors. These combination therapies have shown better results with cancer treatments. Both the monotherapy and dual therapy treatments are still currently being studied and data collected to better understand cancer and other treatment options.
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Yu Y, Xiong Y, Ladeiras D, Yang Z, Ming XF. Myosin 1b Regulates Nuclear AKT Activation by Preventing Localization of PTEN in the Nucleus. iScience 2019; 19:39-53. [PMID: 31349190 PMCID: PMC6660601 DOI: 10.1016/j.isci.2019.07.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 05/17/2019] [Accepted: 07/05/2019] [Indexed: 02/08/2023] Open
Abstract
Insulin-induced AKT activation is dependent on phosphoinositide 3-kinase and opposed by tumor suppressor phosphatase and tensin homolog (PTEN). Our previous study demonstrates that myosin 1b (MYO1B) mediates arginase-II-induced activation of mechanistic target of rapamycin complex 1 that is regulated by AKT. However, the role of MYO1B in AKT activation is unknown. Here we show that silencing MYO1B in mouse embryonic fibroblasts (MEF) inhibits insulin-induced nuclear but not cytoplasmic AKT activation accompanied by elevated nuclear PTEN level. Co-immunoprecipitation, co-immunostaining, and proximity ligation assay show an interaction of MYO1B and PTEN resulting in reduced nuclear PTEN. Moreover, the elevated nuclear PTEN upon silencing MYO1B promotes apoptosis of MEFs and melanoma B16F10 cells. Taken together, we demonstrate that MYO1B, by interacting with PTEN, prevents nuclear localization of PTEN contributing to nuclear AKT activation and suppression of cell apoptosis. This may present a therapeutic approach for cancer treatment such as melanoma. MYO1B, by interacting with PTEN, prevents PTEN localization in the nucleus MYO1B prevents nuclear localization of PTEN depending on its motor activity This contributes to nuclear AKT activation and suppression of cell apoptosis Targeting MYO1B may represent a therapeutic approach for cancer treatment
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Affiliation(s)
- Yi Yu
- Cardiovascular and Aging Research, Department of Endocrinology, Metabolism and Cardiovascular System, Medicine Section, Faculty of Science and Medicine, University of Fribourg, Chemin du Musée 5, 1700 Fribourg, Switzerland
| | - Yuyan Xiong
- Cardiovascular and Aging Research, Department of Endocrinology, Metabolism and Cardiovascular System, Medicine Section, Faculty of Science and Medicine, University of Fribourg, Chemin du Musée 5, 1700 Fribourg, Switzerland
| | - Diogo Ladeiras
- Cardiovascular and Aging Research, Department of Endocrinology, Metabolism and Cardiovascular System, Medicine Section, Faculty of Science and Medicine, University of Fribourg, Chemin du Musée 5, 1700 Fribourg, Switzerland
| | - Zhihong Yang
- Cardiovascular and Aging Research, Department of Endocrinology, Metabolism and Cardiovascular System, Medicine Section, Faculty of Science and Medicine, University of Fribourg, Chemin du Musée 5, 1700 Fribourg, Switzerland.
| | - Xiu-Fen Ming
- Cardiovascular and Aging Research, Department of Endocrinology, Metabolism and Cardiovascular System, Medicine Section, Faculty of Science and Medicine, University of Fribourg, Chemin du Musée 5, 1700 Fribourg, Switzerland.
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Qi Y, Zhao X, Chen J, Pradipta AR, Wei J, Ruan H, Zhou L, Hsung RP, Tanaka K. In vitro and in vivo cancer cell apoptosis triggered by competitive binding of Cinchona alkaloids to the RING domain of TRAF6. Biosci Biotechnol Biochem 2019; 83:1011-1026. [DOI: 10.1080/09168451.2018.1559030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
ABSTRACT
TRAF6 is highly expressed in many tumors and plays an important role in the immune system. The aim of this study is to confirm anti-tumor activities of all naturally occurring Cinchona alkaloids that have been screened using computational docking program, and to validate the accuracy and specificity of the RING domain of TRAF6 as a potential anti-tumor target, and to explore their effect on the immune system. Results reported herein would demonstrate that Cinchona alkaloids could induce apoptosis in HeLa cells, inhibit the ubiquitination and phosphorylation of both AKT and TAK1, and up-regulate the ratio of Bax/Bcl-2. In addition, these compounds could induce apoptosis in vivo, and increase the secretion of TNF-α, IFN-γ, and IgG, while not significantly impacting the ratio of CD4+T/CD8+T. These investigations suggest that the RING domain of TRAF6 could serve as a de novo biological target for therapeutic treatment in cancers.
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Affiliation(s)
- Yonghao Qi
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, P.R. China
| | - Xuan Zhao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, P.R. China
| | - Jiaying Chen
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, P.R. China
| | - Ambara R Pradipta
- Biofunctional Synthetic Chemistry Laboratory, RIKEN, Wako, Saitama, Japan
| | - Jing Wei
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, P.R. China
| | - Haihua Ruan
- Tianjin University of Commerce, Tianjin, P.R. China
| | - Lijun Zhou
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, P.R. China
| | - Richard P Hsung
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Wisconsin, Madison, WI, USA
| | - Katsunori Tanaka
- Biofunctional Synthetic Chemistry Laboratory, RIKEN, Wako, Saitama, Japan
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Wisconsin, Madison, WI, USA
- Biofunctional Chemistry Laboratory, A. Butlerov Institute of Chemistry, Kazan Federal University, Kazan, Russia
- JST-PRESTO, Wako, Saitama, Japan
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27
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Rizzieri D, Paul B, Kang Y. Metabolic alterations and the potential for targeting metabolic pathways in the treatment of multiple myeloma. ACTA ACUST UNITED AC 2019; 5. [PMID: 31020046 PMCID: PMC6476731 DOI: 10.20517/2394-4722.2019.05] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Metabolism is defined as the collection of complex biochemical processes that living cells use to generate energy and maintain their growth and survival. Metabolism encompasses the synthesis and breakdown of glucose, fatty acids, and amino acids; the generation of energy (ATP); and oxidative phosphorylation. In cancer cells, metabolism can be commandeered to promote tumor growth and cellular proliferation. These alterations in metabolism have emerged as an additional hallmark of various cancers. In this review we focus on metabolic alterations in multiple myeloma (MM) - a malignancy of plasma cells - including derangements in glycolysis, gluconeogenesis, the tricarboxylic acid cycle, oxidative phosphorylation, and fatty acid/amino acid synthesis and degradation. Particular focus is given to metabolic alterations that contribute to myeloma cell growth, proliferation and drug resistance. Finally, novel approaches that target metabolic pathways for the treatment of MM are discussed.
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Affiliation(s)
- Dustin Rizzieri
- Division of Hematological Malignancies and Cellular Therapy, Duke University Medical Center, Durham, NC 27710, USA
| | - Barry Paul
- Division of Hematological Malignancies and Cellular Therapy, Duke University Medical Center, Durham, NC 27710, USA
| | - Yubin Kang
- Division of Hematological Malignancies and Cellular Therapy, Duke University Medical Center, Durham, NC 27710, USA
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28
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Coronel-Hernández J, López-Urrutia E, Contreras-Romero C, Delgado-Waldo I, Figueroa-González G, Campos-Parra AD, Salgado-García R, Martínez-Gutierrez A, Rodríguez-Morales M, Jacobo-Herrera N, Terrazas LI, Silva-Carmona A, López-Camarillo C, Pérez-Plasencia C. Cell migration and proliferation are regulated by miR-26a in colorectal cancer via the PTEN-AKT axis. Cancer Cell Int 2019; 19:80. [PMID: 30983885 PMCID: PMC6444875 DOI: 10.1186/s12935-019-0802-5] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 03/23/2019] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Invasion and metastasis are determinant events in the prognosis of Colorectal cancer (CRC), a common neoplasm worldwide. An important factor for metastasis is the acquired capacity of the cell to proliferate and invade adjacent tissues. In this paper, we explored the role of micro-RNA-26a in the regulation of proliferation and migration in CRC-derived cells through the negative regulation of PTEN, a key negative regulator of the AKT pathway. METHODS Expression levels of PTEN and mir-26a were surveyed in normal and CRC-derived cell lines; paraffin embedded human tissues, TCGA CRC expression data and a Balb/c mice orthotopic induced CRC model. CRC was induced by an initial intraperitoneal dose of the colonic carcinogen Azoxymethane followed by inflammatory promoter Dextran Sulfate Sodium Salt. Luciferase assays provide information about miR-26a-PTEN 3'UTR interaction. Proliferation and migration by real time cell analysis and wound-healing functional analyses were performed to assess the participation of mir-26a on important hallmarks of CRC and its regulation on the PTEN gene. RESULTS We observed a negative correlation between PTEN and mir-26a expression in cell lines, human tissues, TCGA data, and tissues derived from the CRC mouse model. Moreover, we showed that negative regulation of PTEN exerted by miR-26a affected AKT phosphorylation levels directly. Functional assays showed that mir-26a directly down-regulates PTEN, and that mir-26a over-expressing cells had higher proliferation and migration rates. CONCLUSIONS All this data proposes an important role of mir-26a as an oncomir in the progression and invasion of CRC. Our data suggested that mir-26a could be used as a biomarker of tumor development in CRC patients, however more studies must be conducted to establish its clinical role.
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Affiliation(s)
- Jossimar Coronel-Hernández
- Laboratorio de Genómica Funcional, Unidad de Biomedicina, FES-IZTACALA, UNAM, Tlalnepantla, Mexico
- Programa de Doctorado en Ciencias Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Eduardo López-Urrutia
- Laboratorio de Genómica Funcional, Unidad de Biomedicina, FES-IZTACALA, UNAM, Tlalnepantla, Mexico
| | - Carlos Contreras-Romero
- Laboratorio de Genómica Funcional, Unidad de Biomedicina, FES-IZTACALA, UNAM, Tlalnepantla, Mexico
| | - Izamary Delgado-Waldo
- Laboratorio de Genómica Funcional, Unidad de Biomedicina, FES-IZTACALA, UNAM, Tlalnepantla, Mexico
| | - Gabriela Figueroa-González
- Laboratorio de Genómica, Instituto Nacional de Cancerología, Av. San Fernando No 22, Col. Sección XVI, Tlalpan, Zip code 14080 Mexico City, DF Mexico
| | - Alma D. Campos-Parra
- Laboratorio de Genómica, Instituto Nacional de Cancerología, Av. San Fernando No 22, Col. Sección XVI, Tlalpan, Zip code 14080 Mexico City, DF Mexico
| | - Rebeca Salgado-García
- Laboratorio de Genómica, Instituto Nacional de Cancerología, Av. San Fernando No 22, Col. Sección XVI, Tlalpan, Zip code 14080 Mexico City, DF Mexico
| | - Antonio Martínez-Gutierrez
- Laboratorio de Genómica, Instituto Nacional de Cancerología, Av. San Fernando No 22, Col. Sección XVI, Tlalpan, Zip code 14080 Mexico City, DF Mexico
| | - Miguel Rodríguez-Morales
- Laboratorio de Genómica, Instituto Nacional de Cancerología, Av. San Fernando No 22, Col. Sección XVI, Tlalpan, Zip code 14080 Mexico City, DF Mexico
| | - Nadia Jacobo-Herrera
- Unidad de Bioquímica, Instituto de Ciencias Médicas y Nutrición, Salvador Zubirán, Tlalpan, Mexico City, DF Mexico
| | - Luis Ignacio Terrazas
- Laboratorio de Inmunología de Parásitos, Unidad de Biomedicina, FES-IZTACALA, UNAM, Tlalnepantla, Mexico
| | - Abraham Silva-Carmona
- Laboratorio de Genética, Genómica y Bioinformática, Hospital Infantil de México, Mexico City, Mexico
| | - César López-Camarillo
- Posgrado en Ciencias Genómicas, Universidad Autónoma de la Ciudad de México, Mexico City, Mexico
| | - Carlos Pérez-Plasencia
- Laboratorio de Genómica Funcional, Unidad de Biomedicina, FES-IZTACALA, UNAM, Tlalnepantla, Mexico
- Laboratorio de Genómica, Instituto Nacional de Cancerología, Av. San Fernando No 22, Col. Sección XVI, Tlalpan, Zip code 14080 Mexico City, DF Mexico
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Tau-TCHF Inhibits Spleenic Apoptosis via PI3K-Akt Signaling Pathway in Chickens. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1155:555-563. [PMID: 31468431 DOI: 10.1007/978-981-13-8023-5_51] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Taurine plays an important role in improving immunity, regulating cell proliferation and differentiation, apoptosis and so on. Traditional Chinese herb formula (TCHF) is a wealth of medicine materials for diseases control. There are many studies on Chinese herb formula in inducing cell apoptosis, differentiation and improving animal immunity. The factors in phosphatidylinositol 3-kinase/Protein Kinase (PI3K-Akt) signaling pathway are central regulators of normal cells, which integrates extra-cellular signals into cells and activates affects cell activities including cell proliferation, differentiation and apoptosis. We find the key factors (PIK3CA, PDPK1, AKT1, MDM2, ITGA2B, ITGB1, FAK and p53) in PI3K-Akt signaling pathway by RNA-Seq analysis in our previous research. The overall goal of this study to investigate the influence of taurine TCHF (Tau-TCHF) on cell proliferation, differentiation and apoptosis by estimating the factors above. The layers were fed with normal diet plus 1% of Tau-TCHF and the control group with normal diet to 42 days old. The spleen tissue samples from individual layers were used to analyze the influence of Tau-TCHF on the factors PIK3CA, PDPK1, AKT1, MDM2, ITGA2B, ITGB1, FAK and p53 in PI3K-Akt signaling pathway. The levels of transcription and protein expression of various factors were assessed by quantitative PCR (qPCR) and Western Blot. The results showed that the transcription levels of itgb1, fak, pik3ca, akt1 and mdm2 on 42-day-old chicken spleen tissues were increased significantly in Tau-TCHF group comparing with control group (P < 0.01); the transcription levels of itga2b, pdpk1 and p53 were no significant difference (P > 0.05). The protein levels of PDPK1 and AKT (Ser437) were increased significantly (P < 0.05), but ITGA2B, ITGB1, FAK, PIK3CA, AKT1, MDM2 and p53 had no significant difference (P > 0.05). The results suggest that Tau-TCHF may influence proliferation and differentiation of chickens spleen via regulating PI3K-Akt signaling pathway. And Tau-TCHF may be provided as feed additives in improving the immunity of animals. AKT (Ser473) and PDPK1 may be considered as further targets to study mechanism of Tau-TCHF on anti-apoptosis via PI3K-Akt signaling pathway.
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Wong CW, Or PMY, Wang Y, Li L, Li J, Yan M, Cao Y, Luk HM, Tong TMF, Leslie NR, Lo IFM, Choy KW, Chan AML. Identification of a PTEN mutation with reduced protein stability, phosphatase activity, and nuclear localization in Hong Kong patients with autistic features, neurodevelopmental delays, and macrocephaly. Autism Res 2018; 11:1098-1109. [PMID: 29608813 PMCID: PMC6220804 DOI: 10.1002/aur.1950] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 01/28/2018] [Accepted: 03/09/2018] [Indexed: 01/04/2023]
Abstract
PTEN is a tumor suppressor gene inactivated in over 30% of human cancers. It encodes a lipid phosphatase that serves as a gatekeeper of the phosphoinositide 3-kinase signaling pathway. Germline mutation frequently occurs in this gene in patients diagnosed with PTEN Hamartoma Tumor Syndrome (PHTS). PHTS individuals are characterized by macrocephaly, benign growth of multiple tissues and increased tumor risk. In addition, autistic phenotypes are found in 10-20% of individuals carrying the germline PTEN mutation with macrocephaly. In this report, 13 suspected PHTS patients were screened for mutation in the PTEN gene. A missense variant (c. 302T > C) substituting the isoleucine at codon 101 to a threonine, a single nucleotide insertion (c. 327-328insC) causing a frame shift mutation and termination at codon 109, and a nonsense variant (c. 1003C > T) truncated the protein at codon 335 were identified. The I101T mutation significantly reduced PTEN protein expression levels by 2.5- to 4.0-fold. Mechanistically, I101T reduced the protein half-life of PTEN possibly due to enhanced polyubiquitination at Lysine 13. However, the I101T mutant retained almost 30% of the lipid phosphatase activity of the wild-type protein. Finally, the I101T mutant has reduced phosphorylation at a PTEN auto-dephosphorylation site at Threonine 366 and a lowered ratio of nuclear to cytosolic protein level. These partial losses of multiple PTEN biochemical functions may contribute to the tissue overgrowth and autistic features of this PHTS patient. Autism Res 2018, 11: 1098-1109. © 2018 The Authors Autism Research published by International Society for Autism Research and Wiley Periodicals, Inc. LAY SUMMARY: The genetics of autism spectrum disorders is highly complex with individual risk influenced by both genetic and environmental factors. Mutation in the human PTEN gene confers a high risk of developing autistic behavior. This report revealed that PTEN mutations occurred in 23% of a selected group of Hong Kong patients harboring autistic features with gross overgrowth symptoms. Detailed characterization of a PTEN mutation revealed reduced protein stability as one of the underlying mechanisms responsible for reduced PTEN activity.
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Affiliation(s)
- Chi Wai Wong
- School of Biomedical Sciences, Lo Kwee-Seong Integrated Biomedical Sciences Building, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Penelope Mei Yu Or
- School of Biomedical Sciences, Lo Kwee-Seong Integrated Biomedical Sciences Building, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Yubing Wang
- School of Biomedical Sciences, Lo Kwee-Seong Integrated Biomedical Sciences Building, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Lisha Li
- School of Biomedical Sciences, Lo Kwee-Seong Integrated Biomedical Sciences Building, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Jing Li
- School of Biomedical Sciences, Lo Kwee-Seong Integrated Biomedical Sciences Building, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Mingfei Yan
- School of Biomedical Sciences, Lo Kwee-Seong Integrated Biomedical Sciences Building, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Ye Cao
- Department of Obstetrics and Gynaecology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Ho Ming Luk
- Clinical Genetic Service, Department of Health, Cheung Sha Wan Jockey Club Clinic, Hong Kong, SAR, China
| | - Tony Ming For Tong
- Clinical Genetic Service, Department of Health, Cheung Sha Wan Jockey Club Clinic, Hong Kong, SAR, China
| | - Nick R Leslie
- Institute of Biological Chemistry, Biophysics and Bio-engineering, Heriot Watt University, Edinburgh, Scotland, UK
| | - Ivan Fai-Man Lo
- Clinical Genetic Service, Department of Health, Cheung Sha Wan Jockey Club Clinic, Hong Kong, SAR, China
| | - Kwong Wai Choy
- Department of Obstetrics and Gynaecology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, SAR, China.,The Chinese University of Hong Kong-Baylor College of Medicine Joint Centre For Medical Genetics, Department of Obstetrics and Gynaecology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Andrew Man Lok Chan
- School of Biomedical Sciences, Lo Kwee-Seong Integrated Biomedical Sciences Building, The Chinese University of Hong Kong, Hong Kong, SAR, China.,Brain and Mind Institute, The Chinese University of Hong Kong, Hong Kong, SAR, China
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31
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He H, Cai M, Zhu J, Xiao W, Liu B, Shi Y, Yang X, Liang X, Zheng T, Hu S, Jia X, Chen S, Wang J, Qin Y, Lai S. miR-148a-3p promotes rabbit preadipocyte differentiation by targeting PTEN. In Vitro Cell Dev Biol Anim 2018; 54:241-249. [PMID: 29426973 DOI: 10.1007/s11626-018-0232-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Accepted: 01/12/2018] [Indexed: 01/24/2023]
Abstract
Although emerging data support crucial roles for microRNAs (miRNAs) during adipogenesis, the detailed mechanisms remain largely unknown. In this study, it was shown that in rabbits, levels of miR-148a-3p not only increased in white adipose tissue during early stages of growth but also during in vitro cultured preadipocyte differentiation. Furthermore, overexpression of miR-148a-3p significantly upregulated the mRNA levels of PPARγ, C/EBPα, and FABP4, as well as the protein levels of PPARγ, as indicated by qPCR and western blotting analyses. Overexpression of miR-148a-3p also promoted intracellular triglyceride accumulation. In contrast, downregulation of miR-148a-3p inhibited the differentiation of rabbit preadipocytes. Next, based on target gene prediction and a luciferase reporter assay, we further demonstrated that miR-148a-3p directly targeted one of the 3' untranslated regions of PTEN. Finally, it was observed inhibition of PTEN by siRNA promoted rabbit preadipocyte differentiation. Taken together, our results suggested that miR-148a-3p could be involved in regulating rabbit preadipocyte differentiation through inhibiting expression of PTEN, which further highlighted the importance of miRNAs during adipogenesis.
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Affiliation(s)
- Hongbing He
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Sichuan, Chengdu, 611130, China
| | - Mingcheng Cai
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Sichuan, Chengdu, 611130, China
| | - Jiaoyue Zhu
- College of Animal Science and Technology, China Agricultural University, Yuanmingyuan West Road, Haidian District, 100193, Beijing, People's Republic of China
| | - Wudian Xiao
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Sichuan, Chengdu, 611130, China
| | - Buwei Liu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Sichuan, Chengdu, 611130, China
| | - Yu Shi
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Sichuan, Chengdu, 611130, China
| | - Xue Yang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Sichuan, Chengdu, 611130, China.,Chendu Academy of Agriculture and Forestry Sciences, Sichuan, Chengdu, 611130, China
| | - Xiaohu Liang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Sichuan, Chengdu, 611130, China
| | - Tianhao Zheng
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Sichuan, Chengdu, 611130, China
| | - Shenqiang Hu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Sichuan, Chengdu, 611130, China
| | - Xianbo Jia
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Sichuan, Chengdu, 611130, China
| | - Shiyi Chen
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Sichuan, Chengdu, 611130, China
| | - Jie Wang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Sichuan, Chengdu, 611130, China
| | - Yinghe Qin
- College of Animal Science and Technology, China Agricultural University, Yuanmingyuan West Road, Haidian District, 100193, Beijing, People's Republic of China.
| | - Songjia Lai
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Sichuan, Chengdu, 611130, China.
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32
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Sun B, Wang G, Liu H, Liu P, Twal WO, Cheung H, Carroll SL, Ethier SP, Mevers EE, Clardy J, Roberts T, Chen C, Li Q, Wang L, Yang M, Zhao JJ, Wang Q. Oridonin inhibits aberrant AKT activation in breast cancer. Oncotarget 2018; 9:23878-23889. [PMID: 29844859 PMCID: PMC5963618 DOI: 10.18632/oncotarget.24378] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 01/13/2018] [Indexed: 12/31/2022] Open
Abstract
Aberrant activation of phosphatidylinosito-4,5-bisphosphate 3-kinase/protein kinase B (PI3K/AKT) signaling in cancer has led to pursuit of inhibitors for targeting this pathway. However, inhibitors of PI3K and AKT have failed to yield efficacious results without adverse effects. Here, we screened a library containing 441 authenticated traditional chinese medicine (TCM) plant extracts by examining their effect on cell viability of a human mammary epithelial cell line HMEC-PIK3CAH1047R, which expresses mutant PIK3CAH1047R and has constitutively active AKT signaling. We found that Oridonin, an extract from Rabdosia rubescens, reduced cell viability to the greatest extent. Oridonin binds to AKT1 and potentially functions as an ATP-competitive AKT inhibitor. Importantly, Oridonin selectively impaired tumor growth of human breast cancer cells with hyperactivation of PI3K/AKT signaling. Moreover, Oridonin prevented the initiation of mouse mammary tumors driven by PIK3CAH1047R. Our results suggest that Oridonin may serve as a potent and durable therapeutic agent for the treatment of breast cancers with hyperactivation of PI3K/AKT signaling.
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Affiliation(s)
- Bowen Sun
- The first Affiliate Hospital, Biomedical Translational Research Institute, Guangdong Province Key Laboratory of Molecular Immunology and Antibody Engineering, Jinan University, Guangzhou 510632, China.,Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Geng Wang
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC 29425, USA.,Department of Anatomy, Harbin Medical University, Harbin 150081, China
| | - Huidong Liu
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC 29425, USA.,Department of Anatomy, Harbin Medical University, Harbin 150081, China
| | - Pian Liu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Waleed O Twal
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Hiuwing Cheung
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Steven L Carroll
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Stephen P Ethier
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Emily E Mevers
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA
| | - Jon Clardy
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA
| | - Thomas Roberts
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA.,Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02115, USA
| | - Changbin Chen
- Institute Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Qian Li
- Institute Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Lanfeng Wang
- Institute Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Meixiang Yang
- The first Affiliate Hospital, Biomedical Translational Research Institute, Guangdong Province Key Laboratory of Molecular Immunology and Antibody Engineering, Jinan University, Guangzhou 510632, China
| | - Jean J Zhao
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA.,Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02115, USA
| | - Qi Wang
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
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33
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Chang J, Tang N, Fang Q, Zhu K, Liu L, Xiong X, Zhu Z, Zhang B, Zhang M, Tao J. Inhibition of COX-2 and 5-LOX regulates the progression of colorectal cancer by promoting PTEN and suppressing PI3K/AKT pathway. Biochem Biophys Res Commun 2018; 517:1-7. [PMID: 29339153 DOI: 10.1016/j.bbrc.2018.01.061] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 01/09/2018] [Indexed: 01/18/2023]
Abstract
For colorectal cancer (CRC) patients, local and systemic inflammatory responses have been extensively reported to closely associate with patient survival. However, the specific signaling pathways responsible for carcinogenic responses are unclear. Phosphatase and tensin homolog deleted on chromosome 10 (PTEN) is a negative regulator of PI3K/AKT pathway that is gradually inactivated in cancers through mutation, loss of heterozygosity and others epigenetic mechanisms. In addition, COX and LOX metabolic pathways of arachidonic acid (AA) play a crucial role in promoting adenoma development. The aim of this study is to clarify the relationship of COX, LOX and PTEN/PI3K/AKT pathway. Results showed that the over-expressed COX and LOX in cancer cells can be targeted to decrease the expression of PTEN. After using corresponding inhibitors, this condition was significantly improved and promoted apoptosis, inhibited invasion, proliferation and the production of reactive oxygen species. And for COX-2-/- or 5-LOX-/- ApcMin/+ mice, the PI3K/AKT pathway was further inhibited via promoting PTEN. Furthermore, weakened oxidative stress, inhibited adenoma growth, and improved survival rate. All findings indicated that PTEN was indirectly targeted by these enzyme inhibitors and acted as the potential therapeutic target for colorectal cancer therapy. In short, COX-2 or 5-LOX deletion and its inhibitors enhanced activity of PTEN and suppressed cell and adenoma progression through PI3K/AKT pathway in colorectal cancer.
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Affiliation(s)
- Jian Chang
- Department of Pancreatic Surgery, Renmin Hospital of Wuhan University, China; Department of Hepatobiliary Surgery, Wuhan First Hospital, China
| | - Nan Tang
- Department of Neurosurgery, Union Hospital Tongji Medical College, Huazhong University of Science and Technology, China
| | - Qi Fang
- Department of Pancreatic Surgery, Renmin Hospital of Wuhan University, China
| | - Kongfan Zhu
- Department of Pancreatic Surgery, Renmin Hospital of Wuhan University, China
| | - Lei Liu
- Department of Pancreatic Surgery, Renmin Hospital of Wuhan University, China
| | - Xingcheng Xiong
- Department of Pancreatic Surgery, Renmin Hospital of Wuhan University, China
| | - Zhongchao Zhu
- Department of Pancreatic Surgery, Renmin Hospital of Wuhan University, China
| | - Bixiang Zhang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, China
| | - Mingzhi Zhang
- Department of Medicine, Vanderbilt University, Nashville, TN, USA
| | - Jing Tao
- Department of Pancreatic Surgery, Renmin Hospital of Wuhan University, China.
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34
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Ferreira DM, Neves TJ, Lima LGCA, Alves FA, Begnami MD. Prognostic implications of the phosphatidylinositol 3-kinase/Akt signaling pathway in oral squamous cell carcinoma: overexpression of p-mTOR indicates an adverse prognosis. ACTA ACUST UNITED AC 2017. [DOI: 10.1186/s41241-017-0046-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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35
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Inhibition of Midkine Suppresses Prostate Cancer CD133 + Stem Cell Growth and Migration. Am J Med Sci 2017; 354:299-309. [DOI: 10.1016/j.amjms.2017.04.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 04/24/2017] [Accepted: 04/24/2017] [Indexed: 12/22/2022]
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36
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Jain S, Ghanghas P, Rana C, Sanyal SN. Role of GSK-3β in Regulation of Canonical Wnt/β-catenin Signaling and PI3-K/Akt Oncogenic Pathway in Colon Cancer. Cancer Invest 2017; 35:473-483. [PMID: 28718684 DOI: 10.1080/07357907.2017.1337783] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Non-steroidal anti-inflammatory drugs (NSAIDs) are emerging as novel chemopreventive agents because of their ability in blocking cellular proliferation, and thereby tumor development, and also by promoting apoptosis. GSK-3β, a serine threonine kinase and a negative regulator of the oncogenic Wnt/β-catenin signaling pathway, plays a critical role in the regulation of oncogenesis. Celecoxib and etoricoxib, the two cyclooxygenase-2 (COX-2) selective NSAIDs, and Diclofenac, a preferential COX-2 inhibitory NSAID, had shown uniformly the chemopreventive and anti-neoplastic effects in the early stage of colon cancer by promoting apoptosis as well as an over-expression of GSK-3β while down-regulating the PI3-K/Akt oncogenic pathway.
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Affiliation(s)
- Shelly Jain
- a Department of Biophysics , Panjab University , Chandigarh , India
| | - Preety Ghanghas
- a Department of Biophysics , Panjab University , Chandigarh , India
| | - Chandan Rana
- a Department of Biophysics , Panjab University , Chandigarh , India
| | - S N Sanyal
- a Department of Biophysics , Panjab University , Chandigarh , India
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37
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Brandmaier A, Hou SQ, Shen WH. Cell Cycle Control by PTEN. J Mol Biol 2017; 429:2265-2277. [PMID: 28602818 DOI: 10.1016/j.jmb.2017.06.004] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 05/28/2017] [Accepted: 06/02/2017] [Indexed: 12/26/2022]
Abstract
Continuous and error-free chromosome inheritance through the cell cycle is essential for genomic stability and tumor suppression. However, accumulation of aberrant genetic materials often causes the cell cycle to go awry, leading to malignant transformation. In response to genotoxic stress, cells employ diverse adaptive mechanisms to halt or exit the cell cycle temporarily or permanently. The intrinsic machinery of cycling, resting, and exiting shapes the cellular response to extrinsic stimuli, whereas prevalent disruption of the cell cycle machinery in tumor cells often confers resistance to anticancer therapy. Phosphatase and tensin homolog (PTEN) is a tumor suppressor and a guardian of the genome that is frequently mutated or deleted in human cancer. Moreover, it is increasingly evident that PTEN deficiency disrupts the fundamental processes of genetic transmission. Cells lacking PTEN exhibit cell cycle deregulation and cell fate reprogramming. Here, we review the role of PTEN in regulating the key processes in and out of cell cycle to optimize genomic integrity.
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Affiliation(s)
- Andrew Brandmaier
- Department of Radiation Oncology, Weill Cornell Medicine, Cornell University, New York, NY 10065, USA
| | - Sheng-Qi Hou
- Department of Radiation Oncology, Weill Cornell Medicine, Cornell University, New York, NY 10065, USA
| | - Wen H Shen
- Department of Radiation Oncology, Weill Cornell Medicine, Cornell University, New York, NY 10065, USA.
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38
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Hamann BL, Blind RD. Nuclear phosphoinositide regulation of chromatin. J Cell Physiol 2017; 233:107-123. [PMID: 28256711 DOI: 10.1002/jcp.25886] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 03/01/2017] [Indexed: 12/26/2022]
Abstract
Phospholipid signaling has clear connections to a wide array of cellular processes, particularly in gene expression and in controlling the chromatin biology of cells. However, most of the work elucidating how phospholipid signaling pathways contribute to cellular physiology have studied cytoplasmic membranes, while relatively little attention has been paid to the role of phospholipid signaling in the nucleus. Recent work from several labs has shown that nuclear phospholipid signaling can have important roles that are specific to this cellular compartment. This review focuses on the nuclear phospholipid functions and the activities of phospholipid signaling enzymes that regulate metazoan chromatin and gene expression. In particular, we highlight the roles that nuclear phosphoinositides play in several nuclear-driven physiological processes, such as differentiation, proliferation, and gene expression. Taken together, the recent discovery of several specifically nuclear phospholipid functions could have dramatic impact on our understanding of the fundamental mechanisms that enable tight control of cellular physiology.
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Affiliation(s)
- Bree L Hamann
- Division of Diabetes Endocrinology and Metabolism, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Raymond D Blind
- Division of Diabetes Endocrinology and Metabolism, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee.,Departments of Medicine, Biochemistry and Pharmacology, Division of Diabetes Endocrinology and Metabolism, The Vanderbilt Diabetes Research and Training Center and the Vanderbilt-Ingram Cancer Center, Nashville, Tennessee
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39
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TCRP1 promotes NIH/3T3 cell transformation by over-activating PDK1 and AKT1. Oncogenesis 2017; 6:e323. [PMID: 28436990 PMCID: PMC5520495 DOI: 10.1038/oncsis.2017.18] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 12/30/2016] [Accepted: 01/24/2017] [Indexed: 01/04/2023] Open
Abstract
Tongue cancer resistance-related protein 1 (TCRP1) gene was first cloned from the multidrug resistance tongue cancer cell (Tca8113/pingyangmycin) in our lab. Our precious studies demonstrated that TCRP1 was involving in chemotherapy and radiotherapy resistance of tongue cancer cells, lung cancer cells and ovarian cancer cells. In this study, we showed that TCRP1 overexpression promotes cell transformation and tumorigenesis through hyperphosphorylation of the oncogenic kinase 3-phosphoinositide-dependent protein kinase-1 (PDK1) and AKT1, whereas inhibition of PDK1 by OSU-03012 or PDK1 small interfering RNA reversed TCRP1-mediated cell transformation. Importantly, TCRP1 was able to directly interact with PDK1, and 93–107 amino-acid and 109–124 amino-acid sites of TCRP1 were the common binding domain of PDK1. Moreover, in line with its oncogenic activity, we found that TCRP1 is often overexpressed in human in lung cancer, glioma, ovarian cancer, thyroid cancer, nasopharyngeal carcinoma, pancreatic cancer, stomach cancer and tongue carcinoma tissues. Spearman correlation analysis showed that the expression of TCRP1 has a positive correlation with p-PDK1, as well as p-AKT1 in lung cancer and gliomas tissues. Thus, TCRP1 may be a candidate as human oncoprotein that promotes cancer development by activation of PDK1/AKT1 signaling.
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40
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The role of PTEN in regulation of hepatic macrophages activation and function in progression and reversal of liver fibrosis. Toxicol Appl Pharmacol 2017; 317:51-62. [PMID: 28095306 DOI: 10.1016/j.taap.2017.01.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 12/02/2016] [Accepted: 01/12/2017] [Indexed: 12/25/2022]
Abstract
Activation of Kupffer cells (KCs) plays a pivotal role in the pathogenesis of liver fibrosis. The progression and reversal of CCl4-induced mouse liver fibrosis showed a mixed induction of hepatic classical (M1) and alternative (M2) macrophage markers. Although the role of phosphatase and tensin homolog deleted on chromosome 10 (PTEN) in modulating myeloid cell activation has recently been identified, its function in macrophage activation during hepatic fibrosis remains to be fully appreciated. In our study, PTEN expression of KCs was remarkably decreased in CCl4-induced mice but increased to a near-normal level in reversed mice. Moreover, PTEN was significantly decreased in IL4-induced RAW 264.7 cells in vitro and lower expression of PTEN was observed in M2 macrophages in vivo. In addition, loss- and gain-of-function studies suggested that PTEN regulates M2 macrophages polarization via activation of PI3K/Akt/STAT6 signaling, but had a limited effect on M1 macrophages polarization in vitro. Additionally, Ly294002, a chemical inhibitor of PI3K/Akt, could dramatically down-regulate the hallmarks of M2 macrophages. In conclusion, PTEN mediates macrophages activation by PI3K/Akt/STAT6 signaling pathway, which provides novel compelling evidences on the potential of PTEN in liver injury and opens new cellular target for the pharmacological therapy of liver fibrosis.
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41
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Zhang Z, Hou SQ, He J, Gu T, Yin Y, Shen WH. PTEN regulates PLK1 and controls chromosomal stability during cell division. Cell Cycle 2016; 15:2476-85. [PMID: 27398835 PMCID: PMC5026806 DOI: 10.1080/15384101.2016.1203493] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 06/12/2016] [Accepted: 06/13/2016] [Indexed: 12/28/2022] Open
Abstract
PTEN functions as a guardian of the genome through multiple mechanisms. We have previously established that PTEN maintains the structural integrity of chromosomes. In this report, we demonstrate a fundamental role of PTEN in controlling chromosome inheritance to prevent gross genomic alterations. Disruption of PTEN or depletion of PTEN protein phosphatase activity causes abnormal chromosome content, manifested by enlarged or polyploid nuclei. We further identify polo-like kinase 1 (PLK1) as a substrate of PTEN phosphatase. PTEN can physically associate with PLK1 and reduce PLK1 phosphorylation in a phosphatase-dependent manner. We show that PTEN deficiency leads to PLK1 phosphorylation and that a phospho-mimicking PLK1 mutant causes polyploidy, imitating functional deficiency of PTEN phosphatase. Inhibition of PLK1 activity or overexpression of a non-phosphorylatable PLK1 mutant reduces the polyploid cell population. These data reveal a new mechanism by which PTEN controls genomic stability during cell division.
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Affiliation(s)
- Zhong Zhang
- Department of Radiation Oncology, Weill Medical Medicine, Cornell University, New York, NY, USA
| | - Sheng-Qi Hou
- Department of Radiation Oncology, Weill Medical Medicine, Cornell University, New York, NY, USA
| | - Jinxue He
- Department of Radiation Oncology, Weill Medical Medicine, Cornell University, New York, NY, USA
| | - Tingting Gu
- Department of Radiation Oncology, Weill Medical Medicine, Cornell University, New York, NY, USA
| | - Yuxin Yin
- Department of Radiation Oncology, Weill Medical Medicine, Cornell University, New York, NY, USA
- Present address: Institute of Systems Biomedicine, Department of Pathology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Wen H. Shen
- Department of Radiation Oncology, Weill Medical Medicine, Cornell University, New York, NY, USA
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42
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Scott WJ, Hentemann MF, Rowley RB, Bull CO, Jenkins S, Bullion AM, Johnson J, Redman A, Robbins AH, Esler W, Fracasso RP, Garrison T, Hamilton M, Michels M, Wood JE, Wilkie DP, Xiao H, Levy J, Stasik E, Liu N, Schaefer M, Brands M, Lefranc J. Discovery and SAR of Novel 2,3-Dihydroimidazo[1,2-c]quinazoline PI3K Inhibitors: Identification of Copanlisib (BAY 80-6946). ChemMedChem 2016; 11:1517-30. [PMID: 27310202 PMCID: PMC5094563 DOI: 10.1002/cmdc.201600148] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 05/12/2016] [Indexed: 12/12/2022]
Abstract
The phosphoinositide 3‐kinase (PI3K) pathway is aberrantly activated in many disease states, including tumor cells, either by growth factor receptor tyrosine kinases or by the genetic mutation and amplification of key pathway components. A variety of PI3K isoforms play differential roles in cancers. As such, the development of PI3K inhibitors from novel compound classes should lead to differential pharmacological and pharmacokinetic profiles and allow exploration in various indications, combinations, and dosing regimens. A screening effort aimed at the identification of PI3Kγ inhibitors for the treatment of inflammatory diseases led to the discovery of the novel 2,3‐dihydroimidazo[1,2‐c]quinazoline class of PI3K inhibitors. A subsequent lead optimization program targeting cancer therapy focused on inhibition of PI3Kα and PI3Kβ. Herein, initial structure–activity relationship findings for this class and the optimization that led to the identification of copanlisib (BAY 80‐6946) as a clinical candidate for the treatment of solid and hematological tumors are described.
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Affiliation(s)
- William J Scott
- Global Development, Global Program Management, Bayer HealthCare Pharmaceuticals Inc., Whippany, NJ, 07981, USA.
| | | | - R Bruce Rowley
- Former Bayer Research Center, West Haven, CT, 16516, USA
| | - Cathy O Bull
- Former Bayer Research Center, West Haven, CT, 16516, USA
| | - Susan Jenkins
- Former Bayer Research Center, West Haven, CT, 16516, USA
| | - Ann M Bullion
- Former Bayer Research Center, West Haven, CT, 16516, USA
| | | | - Anikó Redman
- Former Bayer Research Center, West Haven, CT, 16516, USA
| | | | - William Esler
- Former Bayer Research Center, West Haven, CT, 16516, USA
| | | | | | - Mark Hamilton
- Former Bayer Research Center, West Haven, CT, 16516, USA
| | - Martin Michels
- Global Drug Discovery, Project Management Drug Discovery, Bayer Pharma AG, 13353, Berlin, Germany
| | - Jill E Wood
- Former Bayer Research Center, West Haven, CT, 16516, USA
| | - Dean P Wilkie
- Former Bayer Research Center, West Haven, CT, 16516, USA
| | - Hong Xiao
- Former Bayer Research Center, West Haven, CT, 16516, USA
| | - Joan Levy
- Former Bayer Research Center, West Haven, CT, 16516, USA
| | - Enrico Stasik
- Global Drug Discovery, TRG Oncology, Bayer Pharma AG, 13353, Berlin, Germany
| | - Ningshu Liu
- Global Drug Discovery, TRG Oncology, Bayer Pharma AG, 13353, Berlin, Germany
| | - Martina Schaefer
- Global Drug Discovery, Structural Biology, Bayer Pharma AG, 13353, Berlin, Germany
| | - Michael Brands
- Global Drug Discovery, Medicinal Chemistry Berlin, Bayer Pharma AG, 13353, Berlin, Germany
| | - Julien Lefranc
- Global Drug Discovery, Medicinal Chemistry Berlin, Bayer Pharma AG, 13353, Berlin, Germany.
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43
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Chang YJ, Zhou L, Binari R, Manoukian A, Mak T, McNeill H, Stambolic V. The Rho Guanine Nucleotide Exchange Factor DRhoGEF2 Is a Genetic Modifier of the PI3K Pathway in Drosophila. PLoS One 2016; 11:e0152259. [PMID: 27015411 PMCID: PMC4807833 DOI: 10.1371/journal.pone.0152259] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 03/13/2016] [Indexed: 01/14/2023] Open
Abstract
The insulin/IGF-1 signaling pathway mediates various physiological processes associated with human health. Components of this pathway are highly conserved throughout eukaryotic evolution. In Drosophila, the PTEN ortholog and its mammalian counterpart downregulate insulin/IGF signaling by antagonizing the PI3-kinase function. From a dominant loss-of-function genetic screen, we discovered that mutations of a Dbl-family member, the guanine nucleotide exchange factor DRhoGEF2 (DRhoGEF22(l)04291), suppressed the PTEN-overexpression eye phenotype. dAkt/dPKB phosphorylation, a measure of PI3K signaling pathway activation, increased in the eye discs from the heterozygous DRhoGEF2 wandering third instar larvae. Overexpression of DRhoGEF2, and it’s functional mammalian ortholog PDZ-RhoGEF (ArhGEF11), at various stages of eye development, resulted in both dPKB/Akt-dependent and -independent phenotypes, reflecting the complexity in the crosstalk between PI3K and Rho signaling in Drosophila.
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Affiliation(s)
- Ying-Ju Chang
- Princess Margaret Cancer Center/University Health Network, Toronto, Ontario, Canada
| | - Lily Zhou
- Princess Margaret Cancer Center/University Health Network, Toronto, Ontario, Canada
| | - Richard Binari
- Princess Margaret Cancer Center/University Health Network, Toronto, Ontario, Canada
| | - Armen Manoukian
- Princess Margaret Cancer Center/University Health Network, Toronto, Ontario, Canada
| | - Tak Mak
- Princess Margaret Cancer Center/University Health Network, Toronto, Ontario, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Canada
| | - Helen McNeill
- Lunenfeld-Tanenbaum Research Institute/Mount Sinai Hospital, Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Canada
| | - Vuk Stambolic
- Princess Margaret Cancer Center/University Health Network, Toronto, Ontario, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Canada
- * E-mail:
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Chen JH, Zhang P, Chen WD, Li DD, Wu XQ, Deng R, Jiao L, Li X, Ji J, Feng GK, Zeng YX, Jiang JW, Zhu XF. ATM-mediated PTEN phosphorylation promotes PTEN nuclear translocation and autophagy in response to DNA-damaging agents in cancer cells. Autophagy 2016; 11:239-52. [PMID: 25701194 DOI: 10.1080/15548627.2015.1009767] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
PTEN (phosphatase and tensin homolog), a tumor suppressor frequently mutated in human cancer, has various cytoplasmic and nuclear functions. PTEN translocates to the nucleus from the cytoplasm in response to oxidative stress. However, the mechanism and function of the translocation are not completely understood. In this study, topotecan (TPT), a topoisomerase I inhibitor, and cisplatin (CDDP) were employed to induce DNA damage. The results indicate that TPT or CDDP activates ATM (ATM serine/threonine kinase), which phosphorylates PTEN at serine 113 and further regulates PTEN nuclear translocation in A549 and HeLa cells. After nuclear translocation, PTEN induces autophagy, in association with the activation of the p-JUN-SESN2/AMPK pathway, in response to TPT. These results identify PTEN phosphorylation by ATM as essential for PTEN nuclear translocation and the subsequent induction of autophagy in response to DNA damage.
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Key Words
- AKT/PKB, v-akt murine thymoma viral oncogene homolog
- AMPK, protein kinase, AMP-activated
- ATG, autophagy-related
- ATM
- ATM, ATM serine/threonine kinase
- Baf.A1, bafilomycin A1
- CASP3, caspase 3, apoptosis-related cysteine peptidase
- CCND1, cyclin D1
- CDDP, cisplatin
- CENPC/CENP-C, centromere protein C
- CITED1/p300/CBP, Cbp/p300-interacting transactivator, with Glu/Asp-rich C-terminal domain, 1
- CSNK2/CK2, casein kinase 2
- DNA damage
- DSBs, DNA double-strand breaks
- GAPDH, glyceraldehyde-3-phosphate dehydrogenase
- GFP, green fluorescent protein
- GLTSCR2/PICT-1, glioma tumor suppressor candidate region gene 2
- GSK3B, glycogen synthase kinase 3 β
- GST, glutathione S-transferase
- H2A histone family
- H2AFX
- JUN
- MAP1LC3/LC3, microtubule-associated protein 1 light chain 3
- MTORC1, mechanistic target of rapamycin complex 1
- MVP, major vault protein
- NC, normal control
- NEDD4, neural precursor cell expressed, developmentally down-regulated 4, E3 ubiquitin protein ligase
- PAGE, polyacrylamide gel electrophoresis
- PARP, poly (ADP-ribose) polymerase 1
- PI3K, phosphoinositide 3-kinase
- PMSF, phenylmethanesulfonyl fluoride
- PPase, protein phosphatase
- PTEN
- PTEN, phosphatase and tensin homolog
- PtdIns(3, 4, 5)P3, phosphatidylinositol (3, 4, 5)-trisphosphate
- RAD51, RAD51 recombinase
- RPS6KB/p70S6K
- SDS, sodium dodecyl sulfate
- SESN2, sestrin 2
- SQSTM1/p62, sequestosome 1
- TP53, tumor protein p53
- TPT, topotecan
- TUBA4A, tubulin, α, 4a
- WT, wild type
- YFP, yellow fluorescent protein
- autophagy
- jun proto-oncogene
- member X
- ribosomal protein S6 kinase, 70kDa
- siRNA, small interfering RNA
- topotecan
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Affiliation(s)
- Jing-Hong Chen
- a State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine; Cancer Center; Sun Yat-sen University ; Guangzhou , China
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Tzenaki N, Aivaliotis M, Papakonstanti EA. Focal adhesion kinase phosphorylates the phosphatase and tensin homolog deleted on chromosome 10 under the control of p110δ phosphoinositide-3 kinase. FASEB J 2015; 29:4840-52. [PMID: 26251180 DOI: 10.1096/fj.15-274589] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Accepted: 07/27/2015] [Indexed: 12/21/2022]
Abstract
The phosphatase and tensin homolog deleted on chromosome 10 (PTEN) tumor suppressor protein is regulated by various mechanisms that are not fully understood. This includes regulation by Tyr phosphorylation by a mechanism that remains elusive. Here, we show that focal adhesion kinase (FAK) phosphorylates PTEN in vitro, in cell-free systems and in cells. Furthermore, by mass spectrometry, we identified Tyr336 on PTEN as being phosphorylated by FAK. Tyr336 phosphorylation increased phosphatase activity, protein-lipid interaction, and protein stability of PTEN. In cells, including primary mouse macrophages and human cancer cell lines, FAK was found to be negatively regulated by p110δ phosphoinositide-3 kinase (PI3K), whereas the activation of FAK was positively regulated by RhoA-associated kinase (ROCK). Indeed, the phosphorylation of FAK was unexpectedly increased in macrophages derived from mice expressing kinase-dead p110δ. Pharmacologic inactivation of RhoA/ROCK reduced the phosphorylation of FAK to normal levels in cells with genetically inactivated p110δ. Likewise, pharmacologic inactivation of FAK reduced the phosphorylation of PTEN in cells expressing kinase-dead p110δ and restored the functional defects of p110δ inactivation, including Akt phosphorylation and cell proliferation. This work identifies FAK as a target of p110δ PI3K that links RhoA with PTEN and establishes for the first time that PTEN is a substrate of FAK-mediated Tyr phosphorylation.
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Affiliation(s)
- Niki Tzenaki
- *Department of Biochemistry, School of Medicine, University of Crete, Vassilika Vouton, Heraklion, Greece; and Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Crete, Greece
| | - Michalis Aivaliotis
- *Department of Biochemistry, School of Medicine, University of Crete, Vassilika Vouton, Heraklion, Greece; and Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Crete, Greece
| | - Evangelia A Papakonstanti
- *Department of Biochemistry, School of Medicine, University of Crete, Vassilika Vouton, Heraklion, Greece; and Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Crete, Greece
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46
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Bermúdez Brito M, Goulielmaki E, Papakonstanti EA. Focus on PTEN Regulation. Front Oncol 2015; 5:166. [PMID: 26284192 PMCID: PMC4515857 DOI: 10.3389/fonc.2015.00166] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 07/07/2015] [Indexed: 12/17/2022] Open
Abstract
The role of phosphatase and tensin homolog on chromosome 10 (PTEN) as a tumor suppressor has been for a long time attributed to its lipid phosphatase activity against PI(3,4,5)P3, the phospholipid product of the class I PI3Ks. Besides its traditional role as a lipid phosphatase at the plasma membrane, a wealth of data has shown that PTEN can function independently of its phosphatase activity and that PTEN also exists and plays a role in the nucleus, in cytoplasmic organelles, and extracellularly. Accumulating evidence has shed light on diverse physiological functions of PTEN, which are accompanied by a complex regulation of its expression and activity. PTEN levels and function are regulated transcriptionally, post-transcriptionally, and post-translationally. PTEN is also sensitive to regulation by its interacting proteins and its localization. Herein, we summarize the current knowledge on mechanisms that regulate the expression and enzymatic activity of PTEN and its role in human diseases.
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Affiliation(s)
- Miriam Bermúdez Brito
- Department of Biochemistry, School of Medicine, University of Crete , Heraklion , Greece
| | - Evangelia Goulielmaki
- Department of Biochemistry, School of Medicine, University of Crete , Heraklion , Greece
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Scortegagna M, Lau E, Zhang T, Feng Y, Sereduk C, Yin H, De SK, Meeth K, Platt JT, Langdon CG, Halaban R, Pellecchia M, Davies MA, Brown K, Stern DF, Bosenberg M, Ronai ZA. PDK1 and SGK3 Contribute to the Growth of BRAF-Mutant Melanomas and Are Potential Therapeutic Targets. Cancer Res 2015; 75:1399-412. [PMID: 25712345 DOI: 10.1158/0008-5472.can-14-2785] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 01/20/2015] [Indexed: 01/24/2023]
Abstract
Melanoma development involves members of the AGC kinase family, including AKT, PKC, and, most recently, PDK1, as elucidated recently in studies of Braf::Pten mutant melanomas. Here, we report that PDK1 contributes functionally to skin pigmentation and to the development of melanomas harboring a wild-type PTEN genotype, which occurs in about 70% of human melanomas. The PDK1 substrate SGK3 was determined to be an important mediator of PDK1 activities in melanoma cells. Genetic or pharmacologic inhibition of PDK1 and SGK3 attenuated melanoma growth by inducing G1 phase cell-cycle arrest. In a synthetic lethal screen, pan-PI3K inhibition synergized with PDK1 inhibition to suppress melanoma growth, suggesting that focused blockade of PDK1/PI3K signaling might offer a new therapeutic modality for wild-type PTEN tumors. We also noted that responsiveness to PDK1 inhibition associated with decreased expression of pigmentation genes and increased expression of cytokines and inflammatory genes, suggesting a method to stratify patients with melanoma for PDK1-based therapies. Overall, our work highlights the potential significance of PDK1 as a therapeutic target to improve melanoma treatment.
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Affiliation(s)
- Marzia Scortegagna
- Cancer Center, Sanford-Burnham Medical Research Institute, La Jolla, California
| | - Eric Lau
- Cancer Center, Sanford-Burnham Medical Research Institute, La Jolla, California
| | - Tongwu Zhang
- Division of Cancer Epidemiology and Genetics, Laboratory of Translational Genomics, NCI, Bethesda, Maryland
| | - Yongmei Feng
- Cancer Center, Sanford-Burnham Medical Research Institute, La Jolla, California
| | - Chris Sereduk
- Cancer and Cell Biology Division, The Translational Genomics Research Institute (TGen), Phoenix, Arizona
| | - Hongwei Yin
- Cancer and Cell Biology Division, The Translational Genomics Research Institute (TGen), Phoenix, Arizona
| | - Surya K De
- Cancer Center, Sanford-Burnham Medical Research Institute, La Jolla, California
| | - Katrina Meeth
- Department of Dermatology, Yale University, School of Medicine, New Haven, Connecticut. Department of Pathology, Yale University, School of Medicine, New Haven, Connecticut
| | - James T Platt
- Department of Dermatology, Yale University, School of Medicine, New Haven, Connecticut. Department of Pathology, Yale University, School of Medicine, New Haven, Connecticut
| | - Casey G Langdon
- Department of Dermatology, Yale University, School of Medicine, New Haven, Connecticut. Department of Pathology, Yale University, School of Medicine, New Haven, Connecticut
| | - Ruth Halaban
- Department of Dermatology, Yale University, School of Medicine, New Haven, Connecticut
| | - Maurizio Pellecchia
- Cancer Center, Sanford-Burnham Medical Research Institute, La Jolla, California
| | - Michael A Davies
- Melanoma Medical Oncology, MD Anderson Cancer Center, Houston, Texas
| | - Kevin Brown
- Division of Cancer Epidemiology and Genetics, Laboratory of Translational Genomics, NCI, Bethesda, Maryland
| | - David F Stern
- Department of Pathology, Yale University, School of Medicine, New Haven, Connecticut
| | - Marcus Bosenberg
- Department of Dermatology, Yale University, School of Medicine, New Haven, Connecticut. Department of Pathology, Yale University, School of Medicine, New Haven, Connecticut
| | - Ze'ev A Ronai
- Cancer Center, Sanford-Burnham Medical Research Institute, La Jolla, California.
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Rana C, Piplani H, Vaish V, Nehru B, Sanyal SN. Downregulation of PI3-K/Akt/PTEN pathway and activation of mitochondrial intrinsic apoptosis by Diclofenac and Curcumin in colon cancer. Mol Cell Biochem 2015; 402:225-41. [PMID: 25644785 DOI: 10.1007/s11010-015-2330-5] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 01/16/2015] [Indexed: 02/07/2023]
Abstract
Phosphatidylinositol 3-kinase (PI3-K)/PTEN/Akt signaling is over activated in various tumors including colon cancer. Activation of this pathway regulates multiple biological processes such as apoptosis, metabolism, cell proliferation, and cell growth that underlie the biology of a cancer cell. In the present study, the chemopreventive effects have been observed of Diclofenac, a preferential COX-2 inhibitory non-steroidal anti-inflammatory drugs, and Curcumin, a natural anti-inflammatory agent, in the early stage of colorectal carcinogenesis induced by 1,2-dimethylhydrazine dihydrochloride in rats. The tumor-promoting role of PI3-K/Akt/PTEN signal transduction pathway and its association with anti-apoptotic family of proteins are also observed. Both Diclofenac and Curcumin downregulated the PI3-K and Akt expression while promoting the apoptotic mechanism. Diclofenac and Curcumin administration significantly increased the expression of pro-apoptotic Bcl-2 family members (Bad and Bax) while decreasing the anti-apoptotic Bcl-2 protein. An up-regulation of cysteine protease family apoptosis executioner, such as caspase-3 and -9, is seen. Diclofenac and Curcumin inhibited the Bcl-2 protein by directly interacting at the active site by multiple hydrogen bonding, as also evident by negative glide score of Bcl-2. These drugs stimulated apoptosis by increasing reactive oxygen species (ROS) generation and simultaneously decreasing the mitochondrial membrane potential (ΔΨ M). Diclofenac and Curcumin showed anti-neoplastic effects by downregulating PI3-K/Akt/PTEN pathway, inducing apoptosis, increasing ROS generation, and decreasing ΔΨ M. The anti-neoplastic and apoptotic effects were found enhanced when both Diclofenac and Curcumin were administered together, rather than individually.
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Affiliation(s)
- Chandan Rana
- Department of Biophysics, Panjab University, Chandigarh, 160014, India
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Thorpe LM, Yuzugullu H, Zhao JJ. PI3K in cancer: divergent roles of isoforms, modes of activation and therapeutic targeting. Nat Rev Cancer 2015; 15:7-24. [PMID: 25533673 PMCID: PMC4384662 DOI: 10.1038/nrc3860] [Citation(s) in RCA: 964] [Impact Index Per Article: 107.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Phosphatidylinositol 3-kinases (PI3Ks) are crucial coordinators of intracellular signalling in response to extracellular stimuli. Hyperactivation of PI3K signalling cascades is one of the most common events in human cancers. In this Review, we discuss recent advances in our knowledge of the roles of specific PI3K isoforms in normal and oncogenic signalling, the different ways in which PI3K can be upregulated, and the current state and future potential of targeting this pathway in the clinic.
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Affiliation(s)
- Lauren M. Thorpe
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, USA
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115, USA
- Program in Virology, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Haluk Yuzugullu
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, USA
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Jean J. Zhao
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, USA
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115, USA
- Correspondence to J.J.Z. by
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50
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Zhang QY, Cheng WX, Li WM, Au W, Lu YY. Occurrence of low frequency PIK3CA and AKT2 mutations in gastric cancer. Mutat Res 2014; 769:108-12. [PMID: 25771729 DOI: 10.1016/j.mrfmmm.2014.07.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Revised: 07/20/2014] [Accepted: 07/22/2014] [Indexed: 02/05/2023]
Abstract
The PI3K/AKT signal transduction pathway has distinct functional roles in tumor progression. PIK3CA was reported to harbor the hot-spot in many types of tumor. Akt, the downstream of PI3K, its family members especially AKT2 activation in human cancer has been extensively studied, but its activation by mutation was less reported. The occurrence of PIK3CA and AKT2 mutations in a variety of cancers indicates their important involvement in carcinogenesis. Therefore, we investigated their mutation frequencies in gastric cancer (GC) in China. In our study, we selected hot-spot related exons 9, 18 and 20 of PIK3CA and kinase domain exons 6-14 of AKT2 genes were screened in 10 GC cell lines, 100 advanced primary GC and matched normal tissues. Denaturing high performance liquid chromatography (DHPLC) and DNA sequencing were used to analyze the mutations in the two genes. Two point mutations in the PIK3CA gene were identified in 4 of 10 GC cell lines and in 4 of 100 GC primary tumors. Two polymorphisms in AKT2 were detected in 19 of 100 GC primary tumors. One point mutation in AKT2 was detected in 1 of 10 GC cell lines and 3 of 100 GC primary tumors but no hot spot variation was detected. Our results indicate that PIK3CA and AKT2 mutations occurred at low frequency in GC, and suggest that the PIK3CA/AKT2 pathway might engage other events during gastric carcinogenesis.
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Affiliation(s)
- Qing-Ying Zhang
- Department of Preventive Medicine, Shantou University Medical College, Shantou 515041, China
| | - Wen-Xiang Cheng
- Translational Medicine R&D Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Wen-Mei Li
- Laboratory of Molecular Oncology, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Peking University Cancer Hospital/Institute, Beijing 100142, China
| | - William Au
- Department of Preventive Medicine, Shantou University Medical College, Shantou 515041, China
| | - You-Yong Lu
- Laboratory of Molecular Oncology, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Peking University Cancer Hospital/Institute, Beijing 100142, China.
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