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Zhang X, Wang Y, Lv J. STAT4 targets KISS1 to inhibit the oxidative damage, inflammation and neuronal apoptosis in experimental PD models by inactivating the MAPK pathway. Neurochem Int 2024; 175:105683. [PMID: 38341034 DOI: 10.1016/j.neuint.2024.105683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 01/16/2024] [Accepted: 01/30/2024] [Indexed: 02/12/2024]
Abstract
BACKGROUND Oxidative stress and neuroinflammation are proven to play critical roles in the pathogenesis of Parkinson's disease (PD). As reported, patients with PD have lower level of STAT4 compared with healthy subjects. However, the biological functions and mechanisms of STAT4 in PD pathogenesis remain uncertain. This study aimed to investigate the roles and related mechanisms of STAT4 in PD development. METHODS The intraperitoneal injection of MPTP (20 mg/kg) dissolved in physiological saline was performed to mimic PD-like conditions in vivo. MPP + solution was prepared for cell model of PD. Cell viability was measured by CCK-8. Griess reaction was conducted to measure NO concentrations. The mRNA and protein levels were evaluated by RT-qPCR and western blotting. ROS generation was assessed by DCFH-DA. The levels of inflammatory cytokines were measured by ELISA. Cell apoptosis was examined by flow cytometry and western blotting. Moreover, the SH-SY5Y cells were treated with conditioned medium from LPS-stimulated microglia and subjected to CCK-8 assays and ELISA. Mechanistically, CHIP assays and luciferase reporter assays were performed to verify the binding relationship between KISS1 and STAT4. For in vivo analysis, the histological changes of midbrain tissues of mice were determined by hematoxylin and eosin staining. The expression of tyrosine hydroxylase (TH) was detected by immunohistochemistry staining. Iba-1 positive microglial cells in the striatum were assessed by immunofluorescence staining. RESULTS For in vitro analysis, STAT4 level was downregulated after MPP+ treatment, and STAT4 upregulation inhibited the oxidative damage, inflammation and apoptosis in SH-SY5Y cells. STAT4 bound at +215-228 region of KISS1, and KISS1 upregulation counteracted the protection of STAT4 upregulation against cell damage. Moreover, STAT4 upregulation inhibited cell viability loss and inflammation induced by conditioned medium from LPS-treated microglia, whereas KISS1 upregulation had the opposite effect. For in vivo analysis, the protective effects of STAT4 upregulation against inflammatory response, oxidative stress, dopaminergic neuronal loss and microglia activation were attenuated by KISS1 upregulation. Moreover, the inactivation of MAPK pathway caused by STAT4 upregulation was reversed by KISS1 upregulation, and MAPK inhibition attenuated the MPP+-induced inflammation, oxidative stress and apoptosis in SH-SY5Y cells. CONCLUSION STAT4 inhibits KISS1 to attenuate the oxidative damage, inflammation and neuronal apoptosis in PD by inactivating the MAPK pathway.
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Affiliation(s)
- XiaoLei Zhang
- Department of Neurology, Shanxi People's Hospital, Taiyuan 030012, China.
| | - Yu Wang
- Department of Neurology, Fifth Hospital of Shanxi Medical University, Taiyuan 030012, China
| | - Jia Lv
- Department of Neurology, Fifth Hospital of Shanxi Medical University, Taiyuan 030012, China
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Dinh H, Kovács ZZA, Márványkövi F, Kis M, Kupecz K, Szűcs G, Freiwan M, Lauber GY, Acar E, Siska A, Ibos KE, Bodnár É, Kriston A, Kovács F, Horváth P, Földesi I, Cserni G, Podesser BK, Pokreisz P, Kiss A, Dux L, Csabafi K, Sárközy M. The kisspeptin-1 receptor antagonist peptide-234 aggravates uremic cardiomyopathy in a rat model. Sci Rep 2023; 13:14046. [PMID: 37640761 PMCID: PMC10462750 DOI: 10.1038/s41598-023-41037-0] [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: 01/26/2023] [Accepted: 08/21/2023] [Indexed: 08/31/2023] Open
Abstract
Uremic cardiomyopathy is characterized by diastolic dysfunction, left ventricular hypertrophy (LVH), and fibrosis. Dysregulation of the kisspeptin receptor (KISS1R)-mediated pathways are associated with the development of fibrosis in cancerous diseases. Here, we investigated the effects of the KISS1R antagonist peptide-234 (P234) on the development of uremic cardiomyopathy. Male Wistar rats (300-350 g) were randomized into four groups: (i) Sham, (ii) chronic kidney disease (CKD) induced by 5/6 nephrectomy, (iii) CKD treated with a lower dose of P234 (ip. 13 µg/day), (iv) CKD treated with a higher dose of P234 (ip. 26 µg/day). Treatments were administered daily from week 3 for 10 days. At week 13, the P234 administration did not influence the creatinine clearance and urinary protein excretion. However, the higher dose of P234 led to reduced anterior and posterior wall thicknesses, more severe interstitial fibrosis, and overexpression of genes associated with left ventricular remodeling (Ctgf, Tgfb, Col3a1, Mmp9), stretch (Nppa), and apoptosis (Bax, Bcl2, Casp7) compared to the CKD group. In contrast, no significant differences were found in the expressions of apoptosis-associated proteins between the groups. Our results suggest that the higher dose of P234 hastens the development and pathophysiology of uremic cardiomyopathy by activating the fibrotic TGF-β-mediated pathways.
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Affiliation(s)
- Hoa Dinh
- Department of Biochemistry and Interdisciplinary Centre of Excellence, Albert Szent-Györgyi Medical School, University of Szeged, 6720, Szeged, Hungary
- Department of Biochemistry, Bach Mai Hospital, Hanoi, 100000, Vietnam
| | - Zsuzsanna Z A Kovács
- Department of Biochemistry and Interdisciplinary Centre of Excellence, Albert Szent-Györgyi Medical School, University of Szeged, 6720, Szeged, Hungary
| | - Fanni Márványkövi
- Department of Biochemistry and Interdisciplinary Centre of Excellence, Albert Szent-Györgyi Medical School, University of Szeged, 6720, Szeged, Hungary
| | - Merse Kis
- Department of Biochemistry and Interdisciplinary Centre of Excellence, Albert Szent-Györgyi Medical School, University of Szeged, 6720, Szeged, Hungary
| | - Klaudia Kupecz
- Department of Biochemistry and Interdisciplinary Centre of Excellence, Albert Szent-Györgyi Medical School, University of Szeged, 6720, Szeged, Hungary
| | - Gergő Szűcs
- Department of Biochemistry and Interdisciplinary Centre of Excellence, Albert Szent-Györgyi Medical School, University of Szeged, 6720, Szeged, Hungary
| | - Marah Freiwan
- Department of Biochemistry and Interdisciplinary Centre of Excellence, Albert Szent-Györgyi Medical School, University of Szeged, 6720, Szeged, Hungary
| | - Gülsüm Yilmaz Lauber
- Ludwig Boltzmann Institute for Cardiovascular Research at Center for Biomedical Research and Translational Surgery, Medical University of Vienna, A1090, Vienna, Austria
| | - Eylem Acar
- Ludwig Boltzmann Institute for Cardiovascular Research at Center for Biomedical Research and Translational Surgery, Medical University of Vienna, A1090, Vienna, Austria
| | - Andrea Siska
- Department of Laboratory Medicine, Albert Szent-Györgyi Medical School, University of Szeged, 6720, Szeged, Hungary
| | - Katalin Eszter Ibos
- Department of Pathophysiology, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, 6720, Hungary
| | - Éva Bodnár
- Department of Pathophysiology, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, 6720, Hungary
| | - András Kriston
- Synthetic and Systems Biology Unit, Biological Research Centre, Eötvös Loránd Research Network, 6726, Szeged, Hungary
- Single-Cell Technologies Ltd, Szeged, 6726, Hungary
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, 00014, Helsinki, Finland
| | - Ferenc Kovács
- Synthetic and Systems Biology Unit, Biological Research Centre, Eötvös Loránd Research Network, 6726, Szeged, Hungary
- Single-Cell Technologies Ltd, Szeged, 6726, Hungary
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, 00014, Helsinki, Finland
| | - Péter Horváth
- Synthetic and Systems Biology Unit, Biological Research Centre, Eötvös Loránd Research Network, 6726, Szeged, Hungary
- Single-Cell Technologies Ltd, Szeged, 6726, Hungary
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, 00014, Helsinki, Finland
| | - Imre Földesi
- Department of Laboratory Medicine, Albert Szent-Györgyi Medical School, University of Szeged, 6720, Szeged, Hungary
| | - Gábor Cserni
- Department of Pathology, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, 6720, Hungary
| | - Bruno K Podesser
- Ludwig Boltzmann Institute for Cardiovascular Research at Center for Biomedical Research and Translational Surgery, Medical University of Vienna, A1090, Vienna, Austria
| | - Peter Pokreisz
- Ludwig Boltzmann Institute for Cardiovascular Research at Center for Biomedical Research and Translational Surgery, Medical University of Vienna, A1090, Vienna, Austria
| | - Attila Kiss
- Ludwig Boltzmann Institute for Cardiovascular Research at Center for Biomedical Research and Translational Surgery, Medical University of Vienna, A1090, Vienna, Austria
| | - László Dux
- Department of Biochemistry and Interdisciplinary Centre of Excellence, Albert Szent-Györgyi Medical School, University of Szeged, 6720, Szeged, Hungary.
| | - Krisztina Csabafi
- Department of Pathophysiology, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, 6720, Hungary
| | - Márta Sárközy
- Department of Biochemistry and Interdisciplinary Centre of Excellence, Albert Szent-Györgyi Medical School, University of Szeged, 6720, Szeged, Hungary.
- Department of Pathophysiology, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, 6720, Hungary.
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Harihar S, Welch DR. KISS1 metastasis suppressor in tumor dormancy: a potential therapeutic target for metastatic cancers? Cancer Metastasis Rev 2023; 42:183-196. [PMID: 36720764 PMCID: PMC10103016 DOI: 10.1007/s10555-023-10090-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 01/25/2023] [Indexed: 02/02/2023]
Abstract
Present therapeutic approaches do not effectively target metastatic cancers, often limited by their inability to eliminate already-seeded non-proliferative, growth-arrested, or therapy-resistant tumor cells. Devising effective approaches targeting dormant tumor cells has been a focus of cancer clinicians for decades. However, progress has been limited due to limited understanding of the tumor dormancy process. Studies on tumor dormancy have picked up pace and have resulted in the identification of several regulators. This review focuses on KISS1, a metastasis suppressor gene that suppresses metastasis by keeping tumor cells in a state of dormancy at ectopic sites. The review explores mechanistic insights of KISS1 and discusses its potential application as a therapeutic against metastatic cancers by eliminating quiescent cells or inducing long-term dormancy in tumor cells.
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Affiliation(s)
- Sitaram Harihar
- Department of Genetic Engineering, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu 603203, India
| | - Danny R. Welch
- Department of Cancer Biology, The Kansas University Medical Center, Kansas City, USA
- The University of Kansas Comprehensive Cancer Center, 3901 Rainbow Blvd. Kansas City, Kansas City, KS 66160, USA
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Wang F, Qin G, Liu J, Wang X, Ye B. Bio-analytical Identification of Key Genes that Could Contribute to the Progression and Metastasis of Osteosarcoma. Curr Bioinform 2021. [DOI: 10.2174/1574893615999200801014939] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Osteosarcoma (OS) is one of the most common primary malignant bone
tumors in children and adolescents. OS metastasis has been a challenge in the treatment of OS. The
present study screened progression related genes in OS by analyzing a public dataset GSE42352,
and identified 691 up-regulated and 945 down-regulated genes in advanced stage OS compared to
early-stage OS samples.
Methods:
Protein-protein interaction (PPI) networks were further employed to reveal the
interaction among these genes. Bioinformatics analysis showed that progression related differently
expressed genes (DEGs) were significantly associated with the regulation of cell proliferation and
metabolisms.
Results:
This study revealed that progression related DEGs were dysregulated in metastatic OS
compared to non-metastatic OS samples. Further analysis showed CSF1R, CASP1, CD163,
AP1B1, LAPTM5, PEX19, SLA, STAB1, YWHAH, PLCB2, and GPR84 were associated with the
metastasis-free survival time in patients with OS.
Conclusions:
These findings provided novel information for us to understand the mechanisms
underlying the progression and metastasis of OS.
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Affiliation(s)
- Fei Wang
- Department of Orthopedics, China-Japan Union Hospital Jilin University, Changchun, Jilin,China
| | - Guoqing Qin
- Department of Orthopedics, Jilin Disabled Persons' Rehabilitation Center, (Jilin Chunguang Rehabilitation Hospital), Changchun, Jilin,China
| | - Junzhi Liu
- Quality Control Department, China-Japan Union Hospital Jilin University, Changchun, Jilin,China
| | - Xiunan Wang
- Department of Orthopedics, The 964th Hospital of the PLA Joint Logistics Support Force, No. 4799 Xi 'an Road, Lvyuan District, Changchun City, Jilin Province,China
| | - Baoguo Ye
- Department of Anesthesiology, China-Japan Union Hospital Jilin University, Changchun, Jilin,China
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Abstract
The significance of KISS1 goes beyond its original discovery as a metastasis suppressor. Its function as a neuropeptide involved in diverse physiologic processes is more well studied. Enthusiasm regarding KISS1 has cumulated in clinical trials in multiple fields related to reproduction and metabolism. But its cancer therapeutic space is unsettled. This review focuses on collating data from cancer and non-cancer fields in order to understand shared and disparate signaling that might inform clinical development in the cancer therapeutic and biomarker space. Research has focused on amino acid residues 68-121 (kisspeptin 54), binding to the KISS1 receptor and cellular responses. Evidence and counterevidence regarding this canonical pathway require closer look at the covariates so that the incredible potential of KISS1 can be realized.
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Affiliation(s)
- Thuc Ly
- Department of Cancer Biology, Kansas University Medical Center, 3901 Rainbow Blvd. - MS1071, Kansas City, KS, 66160, USA
| | - Sitaram Harihar
- Department of Genetic Engineering, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu, 603203, India
| | - Danny R Welch
- Department of Cancer Biology, Kansas University Medical Center, 3901 Rainbow Blvd. - MS1071, Kansas City, KS, 66160, USA.
- University of Kansas Cancer Center, 3901 Rainbow Blvd., Kansas City, KS, 66160, USA.
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Harihar S, Ray S, Narayanan S, Santhoshkumar A, Ly T, Welch DR. Role of the tumor microenvironment in regulating the anti-metastatic effect of KISS1. Clin Exp Metastasis 2020; 37:209-223. [PMID: 32088827 PMCID: PMC7339126 DOI: 10.1007/s10585-020-10030-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 02/19/2020] [Indexed: 12/29/2022]
Abstract
KISS1, a metastasis suppressor gene, has been shown to block metastasis without affecting primary tumor formation. Loss of KISS1 leads to invasion and metastasis in multiple cancers, which is the leading cause of cancer morbidity and mortality. The discovery of KISS1 has provided a ray of hope for early clinical diagnosis and for designing effective treatments targeting metastatic cancer. However, this goal requires greater holistic understanding of its mechanism of action. In this review, we go back into history and highlight some key developments, from the discovery of KISS1 to its role in regulating multiple physiological processes including cancer. We discuss key emerging roles for KISS1, specifically interactions with tissue microenvironment to promote dormancy and regulation of tumor cell metabolism, acknowledged as some of the key players in tumor progression and metastasis. We finally discuss strategies whereby KISS1 might be exploited clinically to treat metastasis.
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Affiliation(s)
- Sitaram Harihar
- Department of Genetic Engineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India.
| | - Srijit Ray
- Department of Genetic Engineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India
| | - Samyukta Narayanan
- Department of Genetic Engineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India
| | - Anirudh Santhoshkumar
- Department of Genetic Engineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India
| | - Thuc Ly
- Department of Cancer Biology, University of Kansas Medical Center, 3901 Rainbow Blvd., Kansas City, KS, 66160, USA
- The University Kansas Cancer Center, University of Kansas Medical Center, 3901 Rainbow Blvd., Kansas City, KS, 66160, USA
| | - Danny R Welch
- Department of Cancer Biology, University of Kansas Medical Center, 3901 Rainbow Blvd., Kansas City, KS, 66160, USA
- The University Kansas Cancer Center, University of Kansas Medical Center, 3901 Rainbow Blvd., Kansas City, KS, 66160, USA
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Han Q, Zhang W, Lu C, Wu J, An S, Zhang S. Repression of Kisspeptin1 weakens hydrogen peroxide-caused injury in HTR8 cells via adjusting PI3K/AKT/mTOR pathway. J Biochem Mol Toxicol 2020; 34:e22461. [PMID: 32043704 DOI: 10.1002/jbt.22461] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/23/2019] [Accepted: 01/21/2020] [Indexed: 12/29/2022]
Abstract
Kisspeptin1 (KISS1) is a tumor metastatic suppressor, and its increased expression is validated in human placenta trophoblast cells. Nonetheless, the actions of KISS1 in hydrogen peroxide (H2 O2 )-impaired human trophoblast HTR8 cells still remain imprecise. This research aims to uncover whether KISS1 can mitigate H2 O2 -triggered cell injury. HTR8 cells were pretreated with 250 μM H2 O2 for 4 hours; the autophagic markers (Beclin-1 and LC3B), cell viability, invasion and apoptosis were appraised. Real-time quantitative polymerase chain reaction and Western blot trials were enforced for the valuation of KISS1 mRNA and protein levels. After si-KISS1 transfection and 3-MA manipulation, the aforesaid biological processes were reassessed for ascertaining the influences of repressed KISS1 in H2 O2 -impaired HTR8 cells. Phosphoinositide 3-kinase/protein kinase B/mammalian target of rapamycin (PI3K/AKT/mTOR) pathway was eventually estimated. H2 O2 enhanced Beclin-1 and LC3B expression, restricted cell viability, and invasion, and meanwhile caused apoptosis. The elevation of KISS1 evoked by H2 O2 was observed in HTR8 cells. In addition, silencing KISS1 was distinctly annulled the function of H2 O2 in HTR8 cells. Eventually, we observed that the repression of KISS1 triggered the activation of PI3K/AKT/mTOR in HTR8 cells under H2 O2 management. The diverting research unveiled that KISS1 repression eased H2 O2 -caused HTR8 cells injury via mediating PI3K/AKT/mTOR pathway.
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Affiliation(s)
- Qingfang Han
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
- Department of Obstetrics and Gynecology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Wenke Zhang
- Department of Obstetrics and Gynecology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Caixia Lu
- Department of Obstetrics and Gynecology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Jixia Wu
- Department of Obstetrics and Gynecology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Shujing An
- Department of Obstetrics and Gynecology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Shiqian Zhang
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, China
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Weinman MA, Fischer JA, Jacobs DC, Goodall CP, Bracha S, Chappell PE. Autocrine production of reproductive axis neuropeptides affects proliferation of canine osteosarcoma in vitro. BMC Cancer 2019; 19:158. [PMID: 30777054 PMCID: PMC6379937 DOI: 10.1186/s12885-019-5363-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 02/11/2019] [Indexed: 01/19/2023] Open
Abstract
Background Osteosarcoma strikes hundreds of people each year, of both advanced and younger ages, and is often terminal. Like many tumor types, these bone tumors will frequently undergo a neuroendocrine transition, utilizing autocrine and/or paracrine hormones as growth factors and/or promoters of angiogenesis to facilitate progression and metastasis. While many of these factors and their actions on tumor growth are characterized, some tumor-derived neuropeptides remain unexplored. Methods Using validated canine osteosarcoma cell lines in vitro, as well as cells derived from spontaneous tumors in dogs, we explored the autocrine production of two neuropeptides typically found in the hypothalamus, and most closely associated with reproduction: gonadotropin-releasing hormone (GnRH) and kisspeptin (Kiss-1). We evaluated gene expression and protein secretion of these hormones using quantitative RT-PCR and a sensitive radioimmunoassay, and explored changes in cell proliferation determined by MTS cell viability assays. Results Our current studies reveal that several canine osteosarcoma cell lines (COS, POS, HMPOS, D17, C4) synthesize and secrete GnRH and express the GnRH receptor, while COS and POS also express kiss1 and its cognate receptor. We have further found that GnRH and kisspeptin, exogenously applied to these tumor cells, exert significant effects on both gene expression and proliferation. Of particular interest, kisspeptin exposure stimulated GnRH secretion from COS, similarly to the functional relationship observed within the neuroendocrine reproductive axis. Additionally, GnRH and kisspeptin treatment both increased COS proliferation, which additionally manifested in increased expression of the bone remodeling ligand rankl within these cells. These effects were blocked by treatment with a specific GnRH receptor inhibitor. Both neuropeptides were found to increase expression of the specific serotonin (5HT) receptor htr2a, the activation of which has previously been associated with cellular proliferation, suggesting that production of these factors by osteosarcoma cells may act to sensitize tumors to circulating 5HT of local and/or enteric origin. Conclusions Here we report that kisspeptin and GnRH act as autocrine growth factors in canine osteosarcoma cells in vitro, modulating RANKL and serotonin receptor expression in a manner consistent with pro-proliferative effects. Pharmacological targeting of these hormones may represent new avenues of osteosarcoma treatment. Electronic supplementary material The online version of this article (10.1186/s12885-019-5363-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Marcus A Weinman
- Department of Clinical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, OR, 97331, USA
| | - Jacob A Fischer
- Department of Biomedical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, OR, 97331, USA
| | - Dakota C Jacobs
- Department of Biomedical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, OR, 97331, USA
| | - Cheri P Goodall
- Department of Biomedical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, OR, 97331, USA
| | - Shay Bracha
- Department of Clinical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, OR, 97331, USA
| | - Patrick E Chappell
- Department of Biomedical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, OR, 97331, USA.
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Ren YM, Duan YH, Sun YB, Yang T, Zhao WJ, Zhang DL, Tian ZW, Tian MQ. Exploring the key genes and pathways of side population cells in human osteosarcoma using gene expression array analysis. J Orthop Surg Res 2018; 13:153. [PMID: 29921292 PMCID: PMC6006685 DOI: 10.1186/s13018-018-0860-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 06/08/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Human osteosarcoma (OS) is one of the most common primary bone sarcoma, because of early metastasis and few treatment strategies. It has been reported that the tumorigenicity and self-renewal capacity of side population (SP) cells play roles in human OS via regulating of target genes. This study aims to complement the differentially expressed genes (DEGs) that regulated between the SP cells and the non-SP cells from primary human OS and identify their functions and molecular pathways associated with OS. METHODS The gene expression profile GSE63390 was downloaded, and bioinformatics analysis was made. RESULTS One hundred forty-one DEGs totally were identified. Among them, 72 DEGs (51.06%) were overexpressed, and the remaining 69 DEGs (48.94%) were underexpressed. Gene ontology (GO) and pathway enrichment analysis of target genes were performed. We furthermore identified some relevant core genes using gene-gene interaction network analysis such as EIF4E, FAU, HSPD1, IL-6, and KISS1, which may have a relationship with the development process of OS. We also discovered that EIF4E/mTOR signaling pathway could be a potential research target for therapy and tumorigenesis of OS. CONCLUSION This analysis provides a comprehensive understanding of the roles of DEGs coming from SP cells in the development of OS. However, these predictions need further experimental validation in future studies.
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Affiliation(s)
- Yi-Ming Ren
- Department of Joint and Sport Medicine, Tianjin Union Medical Center, Jieyuan Road 190, Hongqiao District, Tianjin, 300121 People’s Republic of China
| | - Yuan-Hui Duan
- Department of Joint and Sport Medicine, Tianjin Union Medical Center, Jieyuan Road 190, Hongqiao District, Tianjin, 300121 People’s Republic of China
| | - Yun-Bo Sun
- Department of Joint and Sport Medicine, Tianjin Union Medical Center, Jieyuan Road 190, Hongqiao District, Tianjin, 300121 People’s Republic of China
| | - Tao Yang
- Department of Joint and Sport Medicine, Tianjin Union Medical Center, Jieyuan Road 190, Hongqiao District, Tianjin, 300121 People’s Republic of China
| | - Wen-Jun Zhao
- Department of Joint and Sport Medicine, Tianjin Union Medical Center, Jieyuan Road 190, Hongqiao District, Tianjin, 300121 People’s Republic of China
| | - Dong-Liang Zhang
- Department of Joint and Sport Medicine, Tianjin Union Medical Center, Jieyuan Road 190, Hongqiao District, Tianjin, 300121 People’s Republic of China
| | - Zheng-Wei Tian
- Department of Joint and Sport Medicine, Tianjin Union Medical Center, Jieyuan Road 190, Hongqiao District, Tianjin, 300121 People’s Republic of China
| | - Meng-Qiang Tian
- Department of Joint and Sport Medicine, Tianjin Union Medical Center, Jieyuan Road 190, Hongqiao District, Tianjin, 300121 People’s Republic of China
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Tian H, Guan D, Li J. Identifying osteosarcoma metastasis associated genes by weighted gene co-expression network analysis (WGCNA). Medicine (Baltimore) 2018; 97:e10781. [PMID: 29901575 PMCID: PMC6023727 DOI: 10.1097/md.0000000000010781] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 04/24/2018] [Indexed: 12/12/2022] Open
Abstract
Osteosarcoma (OS), the most common malignant bone tumor, accounts for the heavy healthy threat in the period of children and adolescents. OS occurrence usually correlates with early metastasis and high death rate. This study aimed to better understand the mechanism of OS metastasis.Based on Gene Expression Omnibus (GEO) database, we downloaded 4 expression profile data sets associated with OS metastasis, and selected differential expressed genes. Weighted gene co-expression network analysis (WGCNA) approach allowed us to investigate the most OS metastasis-correlated module. Gene Ontology functional and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses were used to give annotation of selected OS metastasis-associated genes.We select 897 differential expressed genes from OS metastasis and OS non-metastasis groups. Based on these selected genes, WGCNA further explored 142 genes included in the most OS metastasis-correlated module. Gene Ontology functional and KEGG pathway enrichment analyses showed that significantly OS metastasis-associated genes were involved in pathway correlated with insulin-like growth factor binding.Our research figured out several potential molecules participating in metastasis process and factors acting as biomarker. With this study, we could better explore the mechanism of OS metastasis and further discover more therapy targets.
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Affiliation(s)
- Honglai Tian
- Department of Orthopaedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine
| | - Donghui Guan
- Department of Orthopaedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine
| | - Jianmin Li
- Department of Orthopaedics, Qilu Hospital of Shandong University, Wenhua West Road, Jinan City, Shandong, China
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Kaverina N, Borovjagin AV, Kadagidze Z, Baryshnikov A, Baryshnikova M, Malin D, Ghosh D, Shah N, Welch DR, Gabikian P, Karseladze A, Cobbs C, Ulasov IV. Astrocytes promote progression of breast cancer metastases to the brain via a KISS1-mediated autophagy. Autophagy 2017; 13:1905-1923. [PMID: 28981380 PMCID: PMC5788498 DOI: 10.1080/15548627.2017.1360466] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 07/07/2017] [Accepted: 07/24/2017] [Indexed: 12/14/2022] Open
Abstract
Formation of metastases, also known as cancer dissemination, is an important stage of breast cancer (BrCa) development. KISS1 expression is associated with inhibition of metastases development. Recently we have demonstrated that BrCa metastases to the brain exhibit low levels of KISS1 expression at both mRNA and protein levels. By using multicolor immunofluorescence and coculture techniques here we show that normal adult astrocytes in the brain are capable of promoting metastatic transformation of circulating breast cancer cells localized to the brain through secretion of chemokine CXCL12. The latter was found in this study to downregulate KISS1 expression at the post-transcriptional level via induction of microRNA-345 (MIR345). Furthermore, we demonstrated that ectopic expression of KISS1 downregulates ATG5 and ATG7, 2 key modulators of autophagy, and works concurrently with autophagy inhibitors, thereby implicating autophagy in the mechanism of KISS1-mediated BrCa metastatic transformation. We also found that expression of KISS1 in human breast tumor specimens inversely correlates with that of MMP9 and IL8, implicated in the mechanism of metastatic invasion, thereby supporting the role of KISS1 as a potential regulator of BrCa metastatic invasion in the brain. This conclusion is further supported by the ability of KISS1, ectopically overexpressed from an adenoviral vector in MDA-MB-231Br cells with silenced expression of the endogenous gene, to revert invasive phenotype of those cells. Taken together, our results strongly suggest that human adult astrocytes can promote brain invasion of the brain-localized circulating breast cancer cells by upregulating autophagy signaling pathways via the CXCL12-MIR345- KISS1 axis.
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Affiliation(s)
- Natalya Kaverina
- Department of Tumor Immunology, Institute of Experimental Diagnostics and Therapy of Tumors, N.N. Blokhin Cancer Research Center, Moscow, Russia
| | - Anton V. Borovjagin
- University of Alabama at Birmingham School of Dentistry, Institute of Oral Health Research, Birmingham, AL, USA
| | - Zaira Kadagidze
- Department of Tumor Immunology, Institute of Experimental Diagnostics and Therapy of Tumors, N.N. Blokhin Cancer Research Center, Moscow, Russia
| | - Anatoly Baryshnikov
- Institute of Experimental Diagnostics and Therapy of Tumors, N.N. Blokhin Cancer Research Center, Moscow, Russia
| | - Maria Baryshnikova
- Institute of Experimental Diagnostics and Therapy of Tumors, N.N. Blokhin Cancer Research Center, Moscow, Russia
| | - Dmitry Malin
- Department of Endocrinology, University of Wisconsin-Madison, Madison, WI, USA
- Laboratory of Psychiatric Neurobiology, Institute of Molecular Medicine, Sechenov First Moscow State Medical University, Moscow, Russia
| | - Dhimankrishhna Ghosh
- Center for Advanced Brain Tumor Treatment, Swedish Neuroscience Institute, Seattle, WA, USA
| | - Nameeta Shah
- Center for Advanced Brain Tumor Treatment, Swedish Neuroscience Institute, Seattle, WA, USA
| | - Danny R. Welch
- Department of Cancer Biology, Kansas University Medical Center (KUMC), Kansas City, KS, USA
| | - Patrik Gabikian
- Department of Neurosurgery, Kaiser Permanente Los Angeles Medical Center, Los Angeles, CA, USA
| | - Apollon Karseladze
- Pathology, Institute of Experimental Diagnostics and Therapy of Tumors, N.N. Blokhin Cancer Research Center, Moscow, Russia
| | - Charles Cobbs
- Laboratory of Psychiatric Neurobiology, Institute of Molecular Medicine, Sechenov First Moscow State Medical University, Moscow, Russia
| | - Ilya V. Ulasov
- Center for Advanced Brain Tumor Treatment, Swedish Neuroscience Institute, Seattle, WA, USA
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, Moscow, Russia
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Cheng DD, Zhu B, Li SJ, Yuan T, Yang QC, Fan CY. Down-regulation of RPS9 Inhibits Osteosarcoma Cell Growth through Inactivation of MAPK Signaling Pathway. J Cancer 2017; 8:2720-2728. [PMID: 28928861 PMCID: PMC5604204 DOI: 10.7150/jca.19130] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 04/17/2017] [Indexed: 01/10/2023] Open
Abstract
Objectives: Osteosarcoma is the most common malignant bone tumor in adolescents; however, the mechanisms involved in the pathogenesis and progression of osteosarcoma remain to be elucidated. Researchers have provided valuable insights into the tumorigenesis of Ribosomal protein S9 (RPS9) in some cancers. The purpose of this study was to elucidate the expression, functions, and mechanisms of RPS9 in human osteosarcoma. Methods: The expression of RPS9 in osteosarcoma tissues and cell lines was evaluated by qRT-PCR and western blotting. Knockdown of RPS9 induced by RNA interference (RNAi) method in three osteosarcoma cell lines (MNNG/HOS, MG63, and U2OS) was employed to analyze the effects of RPS9 on cell proliferation and cell cycle distribution. The host signaling pathways affected by RPS9 were detected using the intracellular signaling antibody array kit PathScan®. Results: The expression of RPS9 was found to be up-regulated in human osteosarcoma tissues and cell lines. Its expression was positively correlated with Enneking stage and the tumor recurrence. Down-regulation of RPS9 inhibited osteosarcoma cell proliferation, colony-forming ability, and cell cycle G1 phase in vitro. In addition, our data demonstrated that knockdown of RPS9 repressed the protein levels of phospho-SAPK/JNK and phospho-p38. Conclusion: RPS9 is up-regulated and has a pro-tumor effect in osteosarcoma through the activation of MAPK signaling pathway and thus can be used as a potential target for gene therapy.
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Affiliation(s)
- Dong-Dong Cheng
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Bin Zhu
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Shi-Jie Li
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Ting Yuan
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Qing-Cheng Yang
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Cun-Yi Fan
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
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Zhang B, Li A, Zuo F, Yu R, Zeng Z, Ma H, Chen S. Recombinant Lactococcus lactis NZ9000 secretes a bioactive kisspeptin that inhibits proliferation and migration of human colon carcinoma HT-29 cells. Microb Cell Fact 2016; 15:102. [PMID: 27287327 PMCID: PMC4901401 DOI: 10.1186/s12934-016-0506-7] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 06/01/2016] [Indexed: 01/14/2023] Open
Abstract
Background Proteinaceous bioactive substances and pharmaceuticals are most conveniently administered orally. However, the facing problems are the side effects of proteolytic degradation and denaturation in the gastrointestinal tract. In recent years, lactic acid bacteria (LAB) have been verified to be a promising delivery vector for susceptible functional proteins and drugs. KiSS-1 peptide, a cancer suppressor, plays a critical role in inhibiting cancer metastasis and its activity has been confirmed by direct administration. However, whether this peptide can be functionally expressed in LAB and exert activity on cancer cells, thus providing a potential alternative administration manner in the future, has not been demonstrated. Results A recombinant Lactococcus lactis strain NZ9000-401-kiss1 harboring a plasmid containing the gene of the tumor metastasis-inhibiting peptide KiSS1 was constructed. After optimization of the nisin induction conditions, the recombinant strain efficiently secreted KiSS1 with a maximum detectable amount of 27.9 μg/ml in Dulbecco’s Modified Eagle medium. The 3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide and would healing assays, respectively, indicated that the secreted KiSS1 peptide remarkably inhibited HT-29 cell proliferation and migration. Furthermore, the expressed KiSS1 was shown to induce HT-29 cell morphological changes, apoptosis and reduce the expression of matrix metalloproteinase 9 (MMP-9) at both mRNA and protein levels. Conclusions A recombinant L. lactis NZ9000-401-kiss1 successfully expressing the human kiss1 was constructed. The secreted KiSS1 peptide inhibited human HT-29 cells’ proliferation and migration probably by invoking, or mediating the cell-apoptosis pathway and by down regulating MMP-9 expression, respectively. Our results suggest that L. lactis is an ideal cell factory for secretory expression of tumor metastasis-inhibiting peptide KiSS1, and the KiSS1-producing L. lactis strain may serve as a new tool for cancer therapy in the future.
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Affiliation(s)
- Bo Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, No. 17 Qinghua East Road, Haidian District, Beijing, 100083, People's Republic of China.,Key Laboratory of Functional Dairy, Department of Food Science and Engineering, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, People's Republic of China
| | - Angdi Li
- Key Laboratory of Functional Dairy, Department of Food Science and Engineering, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, People's Republic of China
| | - Fanglei Zuo
- Key Laboratory of Functional Dairy, Department of Food Science and Engineering, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, People's Republic of China
| | - Rui Yu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, No. 17 Qinghua East Road, Haidian District, Beijing, 100083, People's Republic of China.,Key Laboratory of Functional Dairy, Department of Food Science and Engineering, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, People's Republic of China
| | - Zhu Zeng
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, No. 17 Qinghua East Road, Haidian District, Beijing, 100083, People's Republic of China.,Key Laboratory of Functional Dairy, Department of Food Science and Engineering, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, People's Republic of China
| | - Huiqin Ma
- College of Horticulture, China Agricultural University, Beijing, 100193, People's Republic of China
| | - Shangwu Chen
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, No. 17 Qinghua East Road, Haidian District, Beijing, 100083, People's Republic of China. .,Key Laboratory of Functional Dairy, Department of Food Science and Engineering, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, People's Republic of China.
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Pellicciari C. Histochemistry in biology and medicine: a message from the citing journals. Eur J Histochem 2015; 59:2610. [PMID: 26708189 PMCID: PMC4698620 DOI: 10.4081/ejh.2015.2610] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 12/21/2015] [Indexed: 02/08/2023] Open
Abstract
Especially in recent years, biomedical research has taken advantage of the progress in several disciplines, among which microscopy and histochemistry. To assess the influence of histochemistry in the biomedical field, the articles published during the period 2011-2015 have been selected from different databases and grouped by subject categories: as expected, biological and biomedical studies where histochemistry has been used as a major experimental approach include a wide of basic and applied researches on both humans and other animal or plant organisms. To better understand the impact of histochemical publications onto the different biological and medical disciplines, it was useful to look at the journals where the articles published in a multidisciplinary journal of histochemistry have been cited: it was observed that, in the five-years period considered, 20% only of the citations were in histochemical periodicals, the remaining ones being in journals of Cell & Tissue biology, general and experimental Medicine, Oncology, Biochemistry & Molecular biology, Neurobiology, Anatomy & Morphology, Pharmacology & Toxicology, Reproductive biology, Veterinary sciences, Physiology, Endocrinology, Tissue engineering & Biomaterials, as well as in multidisciplinary journals.It is easy to foresee that also in the future the histochemical journals will be an attended forum for basic and applied scientists in the biomedical field. It will be crucial that these journals be open to an audience as varied as possible, publishing articles on the application of refined techniques to very different experimental models: this will stimulate non-histochemist scientists to approach histochemistry whose application horizon could expand to novel and possibly exclusive subjects.
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Liu S, Chen Z. The Functional Role of PMP22 Gene in the Proliferation and Invasion of Osteosarcoma. Med Sci Monit 2015; 21:1976-82. [PMID: 26154129 PMCID: PMC4501650 DOI: 10.12659/msm.893430] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background As the most common primary bone tumor, osteosarcoma has an improved survival rates with advancement of treatment methods. A higher rate of metastasis, however, leads to the aggravation of the disease. Studies have shown that some genes, namely osteosarcoma metastasis-related genes, participate in the process of tumor metastasis. The peripheral myelin protein 22 (PMP22) gene has recently been found to be abundantly expressed in the oncogenesis of osteosarcoma. Its detailed role and function in the tumor metastasis, however, remains unknown. Material/Methods The recombinant retroviral plasmid pcDNA3.1-PMP22 was constructed and used to transfect osteosarcoma cells SOSP-M, whose cell proliferation was measured by MTT method. The formation of tumor cell colony, the cell migration and invasion were also measured. The signal transduction pathway MAPK was further analyzed by Western blotting. Results The pcDNA3.1-PMP22 plasmid was confirmed to have a 305bp PMP22 fragment by EcoRI-XhoI dual digestion. Compared to the control group, osteosarcoma cell invasion was significantly facilitated by the transfection of pcDNA3.1-PMP22 plasmid (p<0.05). The recombinant plasmid also significantly potentiated the formation of tumor cell colony and increased the migration and invasion ability of tumor cells (p<0.05 in all cases). Phosphorylated p-ERK and p-P38 were also up-regulated by vector transfection (p<0.05). Conclusions Osteosarcoma metastasis-related gene PMP22 participates in the proliferation, invasion, migration and colony formation of osteosarcoma cells possibly via the MAPK signal transduction pathway, providing evidences for further investigation of metastatic mechanism of osteosarcoma.
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Affiliation(s)
- Shuyong Liu
- Department of Hand and Foot Surgery, Jining No. 1 People's Hospital, Jining, Shandong, China (mainland)
| | - Zhiping Chen
- Department of Pediatrics, Jining No. 1 People's Hospital, Jining, Shandong, China (mainland)
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Pellicciari C. Impact of Histochemistry on biomedical research: looking through the articles published in a long-established histochemical journal. Eur J Histochem 2014; 58:2474. [PMID: 25578981 PMCID: PMC4289853 DOI: 10.4081/ejh.2014.2474] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Accepted: 12/29/2014] [Indexed: 12/19/2022] Open
Abstract
Histochemistry provides the unique opportunity to detect single molecules in the very place where they exert their structural roles or functional activities: this makes it possible to correlate structural organization and function, and may be fruitfully exploited in countless biomedical research topics. Aiming to estimate the impact of histochemical articles in the biomedical field, the last few years citations of articles published in a long-established histochemical journal have been considered. This brief survey suggests that histochemical journals, especially the ones open to a large spectrum of research subjects, do represent an irreplaceable source of information not only for cell biologists, microscopists or anatomists, but also for biochemists, molecular biologists and biotechnologists.
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Pellicciari C. Histochemistry as an irreplaceable approach for investigating functional cytology and histology. Eur J Histochem 2013; 57:e41. [PMID: 24441194 PMCID: PMC3896043 DOI: 10.4081/ejh.2013.e41] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Accepted: 12/17/2013] [Indexed: 12/19/2022] Open
Abstract
In agreement with the evolution of histochemistry over the last fifty years and thanks to the impressive advancements in microscopy sciences, the application of cytochemical techniques to light and electron microscopy is more and more addressed to elucidate the functional characteristics of cells and tissue under different physiological, pathological or experimental conditions. Simultaneously, the mere description of composition and morphological features has become increasingly sporadic in the histochemical literature. Since basic research on cell functional organization is essential for understanding the mechanisms responsible for major biological processes such as differentiation or growth control in normal and tumor tissues, histochemical Journals will continue to play a pivotal role in the field of cell and tissue biology in all its structural and functional aspects.
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