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Li J, Tuo D, Guo G, Gao Y, Gan J. The clinical significance and oncogenic function of LRRFIP1 in pancreatic cancer. Discov Oncol 2024; 15:123. [PMID: 38634978 PMCID: PMC11026317 DOI: 10.1007/s12672-024-00977-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 04/09/2024] [Indexed: 04/19/2024] Open
Abstract
PURPOSE Pancreatic cancer is a lethal malignancy with a grim prognosis. Previous studies have proven that Leucine Rich Repeat of Flightless-1 Interacting Protein 1 (LRRFIP1) plays a pivotal role in cell biological processes, while its clinical significance and function in pancreatic cancer remain to be elucidated. Hence, we aimed to explore the roles and mechanisms of LRRFIP1 in pancreatic cancer. METHODS The expression of LRRFIP1 in pancreatic cancer tissues and its clinical significance for pancreatic cancer were analyzed by immunohistochemistry assay and bioinformatic analysis. The influences of LRRFIP1 on the proliferation and migration of pancreatic cancer cells were assessed in vitro. The underlying mechanisms of LRRFIP1 in pancreatic cancer progression were explored using gene set enrichment analysis (GSEA) and molecular experiments. RESULTS The results showed that LRRFIP1 expression was significantly upregulated in pancreatic cancer tissues compared to the normal tissues, and such upregulation was associated with poor prognosis of patients with pancreatic cancer. GSEA revealed that LRRFIP1 upregulation was significantly associated with various cancer-associated signaling pathways, including PI3K/AKT signaling pathway and Wnt pathway. Furthermore, LRRFIP1 was found to be associated with the infiltration of various immune cells. Functionally, LRRFIP1 silencing suppressed cell proliferation somewhat and inhibited migration substantially. Further molecular experiments indicated that LRRFIP1 silencing inactivated the AKT/GSK-3β/β-catenin signaling axis. CONCLUSION Taken together, LRRFIP1 is associated with tumorigenesis, immune cell infiltration, and prognosis in pancreatic cancer, which suggests that LRRFIP1 may be a potential biomarker and therapeutic target for pancreatic cancer.
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Affiliation(s)
- Jinping Li
- Department of Histology and Embryology, School of Preclinical Medicine, Guilin Medical University, Guilin, 541199, Guangxi, People's Republic of China.
| | - Dayun Tuo
- Department of Histology and Embryology, School of Preclinical Medicine, Guilin Medical University, Guilin, 541199, Guangxi, People's Republic of China
- Department of Pathology, Liuzhou People's Hospital, Liuzhou, 545006, Guangxi, People's Republic of China
| | - Gunan Guo
- Department of Histology and Embryology, School of Preclinical Medicine, Guilin Medical University, Guilin, 541199, Guangxi, People's Republic of China
- School of Stomatology, Zhaoqing Medical College, Zhaoqing, 526020, Guangdong, People's Republic of China
| | - Yan Gao
- Department of Histology and Embryology, School of Preclinical Medicine, Guilin Medical University, Guilin, 541199, Guangxi, People's Republic of China
| | - Jinfeng Gan
- Guangxi Key Laboratory of Tumor Immunology and Microenvironmental Regulation, Guilin Medical University, Guilin, 541199, Guangxi, People's Republic of China.
- Department of Gastroenterology, The Second Affiliated Hospital of Guilin Medical University, Guilin, 541199, Guangxi, People's Republic of China.
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Delage C, Breard-Mellin L, Thérésine C, Simioneck S, Lefranc B, Leprince J, Bénard M, Vaudry D. The Heterogeneity of Response of PC12 Cells from Different Laboratories to Nerve Growth Factor and Pituitary Adenylate Cyclase-Activating Polypeptide Questions the Reproducibility of Studies Carried Out with Tumor Cell Lines. Neuroendocrinology 2023; 113:216-230. [PMID: 34348336 DOI: 10.1159/000518337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 07/05/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND PC12 pheochromocytoma tumor cell lines are widely used to decipher the intracellular signaling mechanisms mediating the effects of some growth factors. Nevertheless, the disparity in appearance of some PC12 cell lines used in the different publications questions our ability to compare the results obtained by the numerous laboratories which use them. This led us to analyze the phenotypic aspect and transcriptomic expression of 5 PC12 cell lines from different origins under control conditions and after treatment with nerve growth factor (NGF) or pituitary adenylate cyclase-activating polypeptide (PACAP). METHODS Characterization of the 5 PC12 cell lines was conducted using imaging techniques and high-throughput real-time PCR combined with bioinformatics analysis. RESULTS The results show that the 5 cell lines are very variable in terms of shape, proliferation rate, motility, adhesion to the substrate, and gene expression. This high heterogeneity of the cell lines is also found when looking at their response to NGF or PACAP on gene expression or differentiation, with even in some cases opposite effects, as, for example, on cell proliferation. Actually, only 2 of the cell lines tested exhibited some phenotypic similarities with each other, even though the transcriptomic analyses show that they are far from identical. DISCUSSION/CONCLUSION As this issue of cell heterogenicity is not restricted to PC12 cells, the present results highlight the need to facilitate the supply of cell lines at low cost, the necessity to standardize practices regarding the use of cell lines, and the requirement to define precise markers of established cell lines which should be monitored in every publication. Regarding this latter point, the present data show that transcriptomic analysis by real-time PCR using a panel of genes of interest is easy to implement and provides a reliable method to control the possible drift of the cells over time in culture. Transcriptomic phenotyping combined with bioinformatics analysis can also be a useful approach to predict the response of the cells to treatments in terms of cell signaling activation, which can help to choose among several cell lines the most appropriate one for the investigation of a particular mechanism. Taken together, the results from this study highlight the need to use well-characterized cell lines with standardized protocols to generate reproducible results from 1 laboratory to the other.
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Affiliation(s)
- Colombe Delage
- UNIROUEN, Inserm U1239, Laboratory of Neuronal and Neuroendocrine Communication and Differentiation, Neuropeptides, Neuronal death and Cell plasticity team, Normandie University, Rouen, France
| | - Lou Breard-Mellin
- UNIROUEN, Inserm U1239, Laboratory of Neuronal and Neuroendocrine Communication and Differentiation, Neuropeptides, Neuronal death and Cell plasticity team, Normandie University, Rouen, France
| | - Caroline Thérésine
- UNIROUEN, Inserm, Regional Cell Imaging Platform of Normandy (PRIMACEN), Institute for Research and Innovation in Biomedicine (IRIB), Normandie University, Rouen, France
| | - Séphora Simioneck
- UNIROUEN, Inserm U1239, Laboratory of Neuronal and Neuroendocrine Communication and Differentiation, Neuropeptides, Neuronal death and Cell plasticity team, Normandie University, Rouen, France
| | - Benjamin Lefranc
- UNIROUEN, Inserm U1239, Laboratory of Neuronal and Neuroendocrine Communication and Differentiation, Neuropeptides, Neuronal death and Cell plasticity team, Normandie University, Rouen, France
- UNIROUEN, Inserm, Regional Cell Imaging Platform of Normandy (PRIMACEN), Institute for Research and Innovation in Biomedicine (IRIB), Normandie University, Rouen, France
| | - Jérôme Leprince
- UNIROUEN, Inserm U1239, Laboratory of Neuronal and Neuroendocrine Communication and Differentiation, Neuropeptides, Neuronal death and Cell plasticity team, Normandie University, Rouen, France
- UNIROUEN, Inserm, Regional Cell Imaging Platform of Normandy (PRIMACEN), Institute for Research and Innovation in Biomedicine (IRIB), Normandie University, Rouen, France
| | - Magalie Bénard
- UNIROUEN, Inserm, Regional Cell Imaging Platform of Normandy (PRIMACEN), Institute for Research and Innovation in Biomedicine (IRIB), Normandie University, Rouen, France
| | - David Vaudry
- UNIROUEN, Inserm U1239, Laboratory of Neuronal and Neuroendocrine Communication and Differentiation, Neuropeptides, Neuronal death and Cell plasticity team, Normandie University, Rouen, France
- UNIROUEN, Inserm, Regional Cell Imaging Platform of Normandy (PRIMACEN), Institute for Research and Innovation in Biomedicine (IRIB), Normandie University, Rouen, France
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Habib AM, Nagi K, Thillaiappan NB, Sukumaran V, Akhtar S. Vitamin D and Its Potential Interplay With Pain Signaling Pathways. Front Immunol 2020; 11:820. [PMID: 32547536 PMCID: PMC7270292 DOI: 10.3389/fimmu.2020.00820] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 04/09/2020] [Indexed: 12/12/2022] Open
Abstract
About 50 million of the U.S. adult population suffer from chronic pain. It is a complex disease in its own right for which currently available analgesics have been deemed woefully inadequate since ~20% of the sufferers derive no benefit. Vitamin D, known for its role in calcium homeostasis and bone metabolism, is thought to be of clinical benefit in treating chronic pain without the side-effects of currently available analgesics. A strong correlation between hypovitaminosis D and incidence of bone pain is known. However, the potential underlying mechanisms by which vitamin D might exert its analgesic effects are poorly understood. In this review, we discuss pathways involved in pain sensing and processing primarily at the level of dorsal root ganglion (DRG) neurons and the potential interplay between vitamin D, its receptor (VDR) and known specific pain signaling pathways including nerve growth factor (NGF), glial-derived neurotrophic factor (GDNF), epidermal growth factor receptor (EGFR), and opioid receptors. We also discuss how vitamin D/VDR might influence immune cells and pain sensitization as well as review the increasingly important topic of vitamin D toxicity. Further in vitro and in vivo experimental studies will be required to study these potential interactions specifically in pain models. Such studies could highlight the potential usefulness of vitamin D either alone or in combination with existing analgesics to better treat chronic pain.
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Affiliation(s)
| | | | | | | | - Saghir Akhtar
- College of Medicine, QU Health, Qatar University, Doha, Qatar
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Li B, Wang Z, Yu M, Wang X, Wang X, Chen C, Zhang Z, Zhang M, Sun C, Zhao C, Li Q, Wang W, Wang T, Zhang L, Ning G, Feng S. miR-22-3p enhances the intrinsic regenerative abilities of primary sensory neurons via the CBL/p-EGFR/p-STAT3/GAP43/p-GAP43 axis. J Cell Physiol 2019; 235:4605-4617. [PMID: 31663116 DOI: 10.1002/jcp.29338] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 09/30/2019] [Indexed: 02/06/2023]
Abstract
Spinal cord injury (SCI) is a devastating disease. Strategies that enhance the intrinsic regenerative ability are very important for the recovery of SCI to radically prevent the occurrence of sensory disorders. Epidermal growth factor (EGF) showed a limited effect on the growth of primary sensory neuron neurites due to the degradation of phosphorylated-epidermal growth factor receptor (p-EGFR) in a manner dependent on Casitas B-lineage lymphoma (CBL) (an E3 ubiquitin-protein ligase). MiR-22-3p predicted from four databases could target CBL to inhibit the expression of CBL, increase p-EGFR levels and neurites length via STAT3/GAP43 pathway rather than Erk1/2 axis. EGF, EGFR, and miR-22-3p were downregulated sharply after injury. In vivo miR-22-3p Agomir application could regulate CBL/p-EGFR/p-STAT3/GAP43/p-GAP43 axis, and restore spinal cord sensory conductive function. This study clarified the mechanism of the limited promotion effect of EGF on adult primary sensory neuron neurite and targeting miR-22-3p could be a novel strategy to treat sensory dysfunction after SCI.
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Affiliation(s)
- Bo Li
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China
| | - Zhijie Wang
- Department of Pediatric Internal Medicine, Affiliated Hospital of Chengde Medical University, Chengde, 067000, Hebei, China
| | - Mei Yu
- Department of Leukemia Center, Chinese Academy of Medical Sciences & Peking Union of Medical College, Institute of Hematology & Hospital of Blood Diseases, Tianjin, 30020, China
| | - Xu Wang
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China
| | - Xin Wang
- Department of Graduate School, Chengde Medical University, Chengde, Hebei, 067000, China
| | - Chuanjie Chen
- Department of Orthopedics, Chengde Central Hospital, Chengde, 067000, Hebei, China
| | - Zheng Zhang
- Department of Orthopedics, The 981st Hospital of the Chinese People's Liberation Army Joint Logistics Support Force, Chengde, 067000, Hebei, China
| | - Meiling Zhang
- Department of Graduate School, Chengde Medical University, Chengde, Hebei, 067000, China
| | - Chao Sun
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China
| | - Chenxi Zhao
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China
| | - Qiang Li
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.,Department of Orthopedics, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Taiyuan, 030032, Shanxi, China
| | - Wei Wang
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China
| | - Tianyi Wang
- Department of Orthopedics, The 981st Hospital of the Chinese People's Liberation Army Joint Logistics Support Force, Chengde, 067000, Hebei, China
| | - Liang Zhang
- Department of Orthopedics, The Second Hospital of Tianjin Medical University, Tianjin, 300211, China
| | - Guangzhi Ning
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.,Department of Translational Medicine, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, 154 Anshan Road, Heping District, Tianjin, 300052, China
| | - Shiqing Feng
- Department of Orthopedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.,Department of Translational Medicine, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, 154 Anshan Road, Heping District, Tianjin, 300052, China
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RNA Sequencing of Peripheral Blood Revealed that the Neurotropic TRK Receptor Signaling Pathway Shows Apparent Correlation in Recovery Following Spinal Cord Injury at Small Cohort. J Mol Neurosci 2019; 68:221-233. [PMID: 30993646 DOI: 10.1007/s12031-019-01273-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 01/29/2019] [Indexed: 12/14/2022]
Abstract
Spinal cord injury (SCI) can be lethal; however, the precise mechanisms underlying healing are unclear, limiting the development of effective therapies. In this study, the molecular mechanisms involved in SCI were investigated. Clinical peripheral blood samples from normal individuals and patients with incomplete SCI (ISCI) and complete SCI (CSCI) were analyzed by RNA-Seq. The expression levels of EPHA4, CDK16, BAD, MAP2 Normal 2, EGR, and RHOB differed significantly between the SCI group and normal individuals, and these results were verified by q-PCR. A gene ontology (GO) enrichment analysis showed that differentially expressed genes were mostly enriched for the neurotrophin TRK receptor signaling pathway. We verified the expression of neurotrophic factors and found that they were all expressed most highly in the SCI group. The results of this study demonstrate that neurotrophic factors are highly expressed after SCI and the neurotrophin TRK receptor signaling pathway may be involved in the initiation of nerve system regeneration.
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Signaling Pathways Relevant to Nerve Growth Factor-induced Upregulation of Transient Receptor Potential M8 Expression. Neuroscience 2017; 367:178-188. [DOI: 10.1016/j.neuroscience.2017.10.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 10/06/2017] [Accepted: 10/24/2017] [Indexed: 12/29/2022]
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Yang C, Wu H, Wang J. Effect of steroidal saponins-loaded nano-bioglass/phosphatidylserine/collagen bone substitute on bone healing. ACTA ACUST UNITED AC 2017; 62:487-491. [DOI: 10.1515/bmt-2016-0151] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Accepted: 10/06/2016] [Indexed: 12/30/2022]
Abstract
AbstractThe objective of this study was to investigate the therapeutic potential of nano-bioglass/phosphatidylserine/collagen (nBG/PS/COL) scaffolds loaded with steroidal saponins as an inducer factor for skeletal defects. The drugs-encapsulated bone substitute was prepared by loading steroidal saponins-collagen microsphere suspension in nano-bioglass and phosphatidylserine (PS) composite. The scaffolds possess an interconnected porous structure with a porosity of about 82.3%. The pore size ranges from several micrometers up to about 400 μm. The drug release assays showed the long-term sustained release of steroidal saponins from the scaffolds with effective and safe bioactivity. Moreover,
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Wong H, Hossain S, Cairns BE. Delta-9-tetrahydrocannabinol decreases masticatory muscle sensitization in female rats through peripheral cannabinoid receptor activation. Eur J Pain 2017; 21:1732-1742. [DOI: 10.1002/ejp.1085] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/21/2017] [Indexed: 01/09/2023]
Affiliation(s)
- H Wong
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada
| | - S Hossain
- InMed Pharmaceuticals Inc., Vancouver, BC, Canada
| | - B E Cairns
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada
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Chunhui Y, Wenjun C, Hui W, Liquan S, Changwei Z, Tianzhu Z, Wenhai Z. Pilose antler peptide protects osteoblasts from inflammatory and oxidative injury through EGF/EGFR signaling. Int J Biol Macromol 2017; 99:15-20. [DOI: 10.1016/j.ijbiomac.2017.02.056] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 02/14/2017] [Accepted: 02/14/2017] [Indexed: 12/12/2022]
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