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Zhu YS, Mo TT, Jiang C, Zhang JN. Osteonectin bidirectionally regulates osteoblast mineralization. J Orthop Surg Res 2023; 18:761. [PMID: 37807073 PMCID: PMC10561403 DOI: 10.1186/s13018-023-04250-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 09/28/2023] [Indexed: 10/10/2023] Open
Abstract
OBJECTIVE The aim of this study was to investigate whether Osteonectin/Secreted protein acidic and rich in cysteine (ON/SPARC) had a two-way dose-dependent regulatory effect on osteoblast mineralization and its molecular mechanism. METHODS Initially, different concentrations of ON were added in osteoblasts, and the gene of bone sialoprotein (BSP), osteocalcin (OCN), osteopontin (OPN) and alkaline phosphatase (ALP) were detected using reverse-transcription quantitative polymerase chain reaction (RT-PCR). Secondly, based on the above results, the Optima and inhibitory concentration of ON for osteoblast mineralization were determined and regrouped, the Control group was also set up, and the gene detections of Collagen 1 (Col 1), Discoidin domain receptor 2 (DDR2) and p38 mitogen‑activated protein kinase were added using RT-PCR. In the third stage of the experiment, osteoblasts were pretreated with 0.4Mm ethyl-3,4-dihydroxybenzoate (DHB) (a specific inhibitor of collagen synthesis) for 3 h before adding the optima SPARC, the gene and protein expressions of OCN, OPN, BSP, ALP, DDR2, ALP, Col 1, DDR2 and P38 were detected by RT‑qPCR and western blot analysis, and the mineralized nodules were observed by alizarin red staining. RESULTS The results showed that the expression of OCN, OPN, BSP, ALP, DDR2, ALP, Col 1, DDR2 and P38 genes and proteins in osteoblasts were significantly enhanced by 1 ug/ml ON, 100 ug/ml ON or 1 ug/ml ON added with 3,4 DHB significantly inhibited the expressions of DDR2, P38 and the above-mentioned mineralization indexes, and significantly reduced the formation of mineralized nodules. CONCLUSION This study suggested that ON had a bidirectional dose-dependent regulatory effect on osteoblast mineralization, and the activation of P38 pathway by collagen binding to DDR2 was also an important molecular mechanism.
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Affiliation(s)
- Yun-Sen Zhu
- Department of Orthopaedic Surgery, The First People's Hospital of Wenling, Chuan'an Nan Road NO 333, Wenling, 317500, Zhejiang, China
| | - Ting-Ting Mo
- Department of Orthopaedic Surgery, The First People's Hospital of Wenling, Chuan'an Nan Road NO 333, Wenling, 317500, Zhejiang, China
| | - Chang Jiang
- Department of Orthopaedic Surgery, The First People's Hospital of Wenling, Chuan'an Nan Road NO 333, Wenling, 317500, Zhejiang, China
| | - Jiang-Nan Zhang
- Department of Orthopaedic Surgery, The First People's Hospital of Wenling, Chuan'an Nan Road NO 333, Wenling, 317500, Zhejiang, China.
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Olek RA, Samborowska E, Wisniewski P, Wojtkiewicz P, Wochna K, Zielinski J. Effect of a 3-month L-carnitine supplementation and resistance training program on circulating markers and bone mineral density in postmenopausal women: a randomized controlled trial. Nutr Metab (Lond) 2023; 20:32. [PMID: 37533033 PMCID: PMC10394783 DOI: 10.1186/s12986-023-00752-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 07/26/2023] [Indexed: 08/04/2023] Open
Abstract
BACKGROUND Higher circulating levels of trimethylamine N-oxide (TMAO), which is a metabolite that can be produced by the gut microbiota from L-carnitine (LC), have been associated with bone mineral density (BMD). Because LC supplementation can improve bone density and microstructural properties in animal models, this study aimed to examine the effects of 12 weeks of LC supplementation on BMD and selected blood markers involved in bone metabolism of postmenopausal women participating in a resistance training (RT) program. METHODS Twenty-seven postmenopausal women, who had not been treated for osteoporosis, with a total T-score above - 3.0 and no diet differences completed 12 weeks of RT. The participants' diets were supplemented with either 1 g of LC-L-tartrate and 3 g of leucine per day (LC group) or 4 g of leucine per day as a placebo (PLA group), in a double-blind fashion. RESULTS After the intervention in the LC group, plasma total carnitine and serum decorin levels were higher than the corresponding preintervention values (p = 0.040 and p = 0.042, respectively). Moreover, plasma TMAO and serum SPARC levels were higher in the LC group than the corresponding postintervention values in the PLA group (p < 0.001 and p = 0.030, respectively). No changes in the BMD were observed after 3 months of the intervention. CONCLUSIONS Twelve weeks of LC supplementation during RT program increased plasma TMAO levels and appeared to affect signaling molecules, as indicated by the increase in the resting SPARC and decorin levels, with no significant modification in the BMD. TRIAL REGISTRATION Retrospectively registered at the ClinicalTrials.gov (NCT05120011).
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Affiliation(s)
- Robert A Olek
- Department of Athletics, Strength, and Conditioning, Poznan University of Physical Education, Krolowej Jadwigi 27/39, Poznan, 61-871, Poland.
| | - Emilia Samborowska
- Mass Spectrometry Laboratory, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
| | - Piotr Wisniewski
- Chair and Department of Endocrinology and Internal Medicine, Medical University of Gdansk, Gdansk, Poland
| | - Pawel Wojtkiewicz
- Endoscopy and Metabolic Disorders, Seventh Navy Hospital, Gdansk, Poland
| | - Krystian Wochna
- Department of Swimming and Water Lifesaving, Poznan University of Physical Education, Poznan, Poland
| | - Jacek Zielinski
- Department of Athletics, Strength, and Conditioning, Poznan University of Physical Education, Krolowej Jadwigi 27/39, Poznan, 61-871, Poland
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Castañeda S, Vicente-Rabaneda EF. Disentangling the molecular interplays between subchondral bone and articular cartilage in estrogen deficiency-induced osteoarthritis. Osteoarthritis Cartilage 2023; 31:6-8. [PMID: 36182034 DOI: 10.1016/j.joca.2022.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 09/22/2022] [Indexed: 02/02/2023]
Affiliation(s)
- Santos Castañeda
- Rheumatology Unit, Hospital Universitario de La Princesa, IIS-Princesa, Madrid, Spain; Cátedra UAM-ROCHE, EPID-Future, Department of Medicine, Universidad Autónoma de Madrid (UAM), Madrid, Spain.
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Zhu YS, Zhang JN, Mo TT, Jiang C, Ma RC, Chen L. Discoidin domain receptor 2 activation of p38 mitogen-activated protein kinase as an important pathway for osteonectin-regulating osteoblast mineralization. J Orthop Surg Res 2021; 16:711. [PMID: 34876214 PMCID: PMC8650413 DOI: 10.1186/s13018-021-02860-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 11/24/2021] [Indexed: 11/24/2022] Open
Abstract
Objective The present study aimed to determine the role of the discoidin domain receptor 2 (DDR2) in the osteonectin (ON) regulation of osteoblast mineralization through the activation of p38 mitogen-activated protein kinase (MAPK). Methods Four groups were established: the ON group, the inhibitor group, the Ddr2-small interfering ribonucleic acid (siRNA) group, and the control group. Osteoblasts from the parietal bones of neonatal Sprague–Dawley rats were isolated and cultured. In the ON group, 1 µg/mL ON was added to the osteoblasts. The gene expressions of collagen 1 (Col 1) and Ddr2 were detected using reverse transcription-quantitative polymerase chain reaction (RT-qPCR). In the inhibitor group, the osteoblasts were added to WRG-28 (a specific DDR2 inhibitor), and in the Ddr2-siRNA group, the osteoblasts were transfected with Ddr2-siRNA. The gene and protein expressions of DDR2, bone sialoprotein, osteocalcin, osteopontin, and p38 MAPK were determined using RT-qPCR and western blot analysis. Alizarin red staining and transmission electron microscopy were used to detect mineralization. Results The results showed that ON enhanced the osteoblast Col 1 and Ddr2 gene expressions, while the use of a Ddr2-siRNA/DDR2-blocker decreased the OPN, BSP, OCN, and P38 gene and protein expressions and reduced osteoblast cellular activity and mineralized nodules. Conclusion The present study demonstrated that DDR2 activation of p38 MAPK is an important approach to ON-regulating osteoblast mineralization.
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Affiliation(s)
- Yun-Sen Zhu
- Department of Orthopaedic Surgery, The First People's Hospital of Wenling, Chuan'an Nan Road NO 333, Wenling, 317500, Zhejiang, China
| | - Jiang-Nan Zhang
- Department of Orthopaedic Surgery, The First People's Hospital of Wenling, Chuan'an Nan Road NO 333, Wenling, 317500, Zhejiang, China
| | - Ting-Ting Mo
- Department of Orthopaedic Surgery, The First People's Hospital of Wenling, Chuan'an Nan Road NO 333, Wenling, 317500, Zhejiang, China
| | - Chang Jiang
- Department of Orthopaedic Surgery, The First People's Hospital of Wenling, Chuan'an Nan Road NO 333, Wenling, 317500, Zhejiang, China.
| | - Ru-Chao Ma
- Department of Orthopaedic Surgery, The First People's Hospital of Wenling, Chuan'an Nan Road NO 333, Wenling, 317500, Zhejiang, China
| | - Liang Chen
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, 215000, Jiangsu, China
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Shankar P, Khandare AL, Validandi V, Khandare S. Supplementation of Calcium and Fluoride-Free Water Mitigates Skeletal Fluorosis in Fluoride-Intoxicated Rats. Biol Trace Elem Res 2021; 199:2225-2237. [PMID: 32770327 DOI: 10.1007/s12011-020-02326-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 08/03/2020] [Indexed: 01/05/2023]
Abstract
Fluorosis is a public health concern in 25 countries around the globe. The present study is about the mitigation of fluoride (F) toxicity by giving F-free water (FFW) and calcium (Ca). A study was conducted by taking 76 Wistar rats in two phases, phase I (6 months), where rats were randomly divided into four groups: normal-Ca diet (NCD) 0.5%; low-Ca diet (LCD) 0.25%; NCD + 100 ppm F and LCD + 100 ppm F in groups 1, 2, 3 and 4, respectively. F and Ca were given through water and diet respectively. Phase II is the reversal of fluorosis for 3 months, where LCD group 2 was treated with NCD. Groups 3 and 4 were divided into two subgroups each: 3X and 3Y, and 4X and 4Y, respectively. Groups 3X and 4X received FFW with NCD. Group 3Y continued as phase I and 4Y NCD and F. The biochemical expression, gene expression, biomechanical properties and DXA were studied by standard methods. The results revealed that in phase I, bone turnover was significantly increased whereas bone mineral content and biomechanical properties of group 4 were significantly decreased (p ≤ 0.05) as compared with that of all other groups. Trabecular separation and total porosity increased in groups 2 and 4. Expression of osteocalcin, osteonectin and osteopontin genes was significantly downregulated in group 4. Bone turnover in group 4X was normalised. Expressions of osteocalcin, osteonectin and osteopontin were upregulated after providing NCD and FFW. In conclusion, low calcium aggravates skeletal fluorosis which could be mitigated on supplementation of Ca and FFW.
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Affiliation(s)
- Priyanka Shankar
- Postgraduate Department of Home Science, Patna Women's College, Patna University, Patna, Bihar, India
| | - Arjun L Khandare
- Food Safety Division, ICMR-National Institute of Nutrition, Jamai Osmania PO, Tarnaka, Hyderabad, India.
| | - Vakdevi Validandi
- Food Safety Division, ICMR-National Institute of Nutrition, Jamai Osmania PO, Tarnaka, Hyderabad, India
| | - Sujata Khandare
- Biomedical Engineering, Pennsylvania State University-University Park, State College, PA, USA
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Abdelgawad LM, Abdelaziz AM, Sabry D, Abdelgwad M. Influence of photobiomodulation and vitamin D on osteoblastic differentiation of human periodontal ligament stem cells and bone-like tissue formation through enzymatic activity and gene expression. Biomol Concepts 2020; 11:172-181. [PMID: 34233429 DOI: 10.1515/bmc-2020-0016] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 11/09/2020] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND (1)Human periodontal ligament stem cells (HPDLSCs) are a unique population of mesenchymal stem cells (MSCs). Recently, the positive effects of photobiomodulation on the regulation of MSCs proliferation and osteogenic differentiation have gained significant attention. This study aimed to assess the effects of photobiomodulation and vitamin D (as an anabolic factor) on HPDLSCs for bone regeneration. METHODS (2)HPDLSCs were collected, isolated, and characterized and then divided into six groups: groups I and II, control and (10-7 Mol) vitamin D, respectively; group III, irradiation at 1 J/cm2 of 808-nm diode laser; group IV, irradiation at 1 J/cm2 and culture with vitamin D; group V, irradiation at 2 J/cm2, and group VI, irradiation at 2 J/cm2 and culture with vitamin D. Cell viability assay was measured through MTT assay and cell growth curve. Alkaline phosphatase (ALP) enzyme activity and mRNA levels of RUNX2, collagen 1 (Col-1), ALP, and osteonectin were also assessed. RESULTS (3)Photobiomodulation at 1 and 2 J/cm2 combined with vitamin D significantly promoted HPDLSC proliferation (in MTT assay and cell growth curve results) and osteogenic differentiation (through the gene expression of RUNX2, Col-1, ALP, and osteonectin levels (p < 0.05). CONCLUSION (4)Laser irradiation at 2 J/cm2 combined with vitamin D3 enhanced osteoblast differentiation and proliferation of cultured HPDLSCs and thus could further substitute bone grafting.
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Affiliation(s)
- Latifa Mohamed Abdelgawad
- Professor of Medical Laser Applications, National Institute of Laser Enhanced Sciences (NILES), Cairo University, Giza, Egypt
| | - Asmaa Mohamed Abdelaziz
- Master degree candidate in Medical Laser Applications Department, National Institute of Laser Enhanced Sciences (NILES), Cairo University, Giza, Egypt
| | - Dina Sabry
- Professor of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, Giza, Egypt
| | - Marwa Abdelgwad
- Lecturer of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, Giza, Egypt
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Veltrini VC, Figueira JA, Santin GC, de Sousa SCOM, de Araújo NS. Can non-collagenous proteins be employed for the differential diagnosis among fibrous dysplasia, cemento-osseous dysplasia and cemento-ossifying fibroma? Pathol Res Pract 2019; 215:152450. [PMID: 31109869 DOI: 10.1016/j.prp.2019.152450] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 04/27/2019] [Accepted: 05/12/2019] [Indexed: 11/20/2022]
Abstract
Differential diagnosis among fibrous dysplasias, cemento-ossifying fibromas and cemento-osseous dysplasias is difficult, since there is considerable overlap of histologic features, but also extremely important, since they differ greatly in etiology, clinical behaviour, prognosis and terapeuthic approach. There is no data about the use of immunohistochemistry, a viable and accessible technique, for this purpose. The objective of this study was to investigate, comparatively, the immunohistochemical expression of major non-collagenous proteins (osteonectin [ON], osteopontin [OP], bone sialoprotein [BSP] and osteocalcin [OC]) of mineralized tissue extracellular matrix in 22 cases of fibrous dysplasias, 16 of cemento-ossifying fibromas and 16 of cemento-osseous dysplasias. ON maintained the same expression profile in all cases; the staining for OP was negative in fusiform cells producing cementoid globules and weak, as well as heterogeneous, in high mineralized matrixes; there was negativity for BSP in cementoid globules and in the fusiform cells that produce them, differently from the strong positive expression found in the majority of bone trabeculae and their peripheral cuboidal osteoblasts; and finally, the immuno-reactivity for OC was weak, except in cuboidal osteoblasts and osteocytes. We can conclude that the nature of mineralized structure and the cellular phenotype are much more responsible for variability in immunohistochemical profile than the type of lesion (fibrous dysplasias, cemento-ossifying fibromas and cemento-osseous dysplasias) which makes difficult, at least for a while, the use of these proteins with diagnosis purpose.
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Affiliation(s)
- Vanessa Cristina Veltrini
- Oral Pathology Discipline, Dentistry Department, State University of Maringa, Av. Mandacaru, 1550, CEP 87080-000, Maringa, PR, Brazil
| | - Jéssica Araújo Figueira
- Oral Oncology Center, São Paulo State University (UNESP), School of Dentistry, Rua José Bonifácio, 1193, CEP 16015-050, Araçatuba, SP, Brazil.
| | - Gabriela Cristina Santin
- Pediatric Dentistry Discipline, Dentistry Department, State University of Maringa, Av. Mandacaru, 1550, CEP 87080-000, Maringa, PR, Brazil
| | | | - Ney Soares de Araújo
- Oral Pathology Department, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes, 2227, CEP 05508-000, São Paulo, SP, Brazil
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Sharif S, Bots ML, Schalkwijk C, Stehouwer CDA, Visseren FLJ, Westerink J. Association between bone metabolism regulators and arterial stiffness in type 2 diabetes patients. Nutr Metab Cardiovasc Dis 2018; 28:1245-1252. [PMID: 30017437 DOI: 10.1016/j.numecd.2018.06.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 05/22/2018] [Accepted: 06/05/2018] [Indexed: 10/14/2022]
Abstract
BACKGROUND AND AIM Osteopontin (OPN), osteonectin (ON) and osteocalcin (OC) play an important role in the development of vascular calcifications, but it is unclear whether these bone metabolism regulators contribute to the development of arterial stiffness in type 2 diabetes patients. We therefore aim to determine the relationship between plasma concentrations of OPN, ON, OC and arterial stiffness in type 2 diabetes patients. METHODS Cross-sectional study of 1003 type 2 diabetes patients included in the Second Manifestations of ARTerial disease (SMART)-cohort. Generalized linear models were used to evaluate the relation between plasma levels of OPN, ON and OC and arterial stiffness as measured by pulse pressure (PP), ankle-brachial index (ABI) (≥0.9), carotid artery distension and an arterial stiffness summary score. Analyses were adjusted for age, sex, kidney function, diabetes duration and diastolic blood pressure. Higher OPN plasma levels were significantly related to a lower ABI (β-0.013; 95%CI -0.024 to -0.002) and a higher arterial stiffness summary score (OR1.24; 95%CI 1.03-1.49). OPN levels were not related to PP (β 0.59; 95%CI -0.63-1.81) or absolute carotid artery distention (β -7.03; 95%CI -20.00-5.93). ON and OC plasma levels were not related to any of the arterial stiffness measures. CONCLUSION Only elevated plasma levels of OPN are associated with increased arterial stiffness in patients with type 2 diabetes as measured by the ankle-brachial index and arterial stiffness summary score. These findings indicate that OPN may be involved in the pathophysiology of arterial stiffness and call for further clinical investigation.
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Affiliation(s)
- S Sharif
- Department of Vascular Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
| | - M L Bots
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - C Schalkwijk
- Department of Internal Medicine, CARIM School for Cardiovascular Diseases, Maastricht University Medical Center, Maastricht, The Netherlands
| | - C D A Stehouwer
- Department of Internal Medicine, CARIM School for Cardiovascular Diseases, Maastricht University Medical Center, Maastricht, The Netherlands
| | - F L J Visseren
- Department of Vascular Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
| | - J Westerink
- Department of Vascular Medicine, University Medical Center Utrecht, Utrecht, The Netherlands.
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Amaral CB, Leite JDS, Fonseca ABM, Ferreira AMR. Vimentin, osteocalcin and osteonectin expression in canine primary bone tumors: diagnostic and prognostic implications. Mol Biol Rep 2018; 45:1289-96. [PMID: 30066297 DOI: 10.1007/s11033-018-4285-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 07/26/2018] [Indexed: 12/14/2022]
Abstract
Canine primary bone tumors have a plastic radiographic image, demanding histopathological confirmation. Bone tumors are characterized by the type and amount of extracellular matrix produced what cannot be easily recognized, especially in biopsy samples. Identifying cellular markers that could aid diagnosis has supported various studies in oncological pathology. This study aimed to evaluate 22 canine primary bone neoplasms, establishing their histopathological diagnosis and evaluated vimentin, osteonectin and osteocalcin expression and their implication in diagnosis and prognosis. There were 12 productive osteoblastic osteosarcomas, six minimally productive osteoblastic osteosarcoma, two chondrosarcomas, one fibrosarcoma and one hemangiosarcoma. Immunostaining was cytoplasmatic in all cases, with average percentage of 87.9% for vimentin, 98.0% for osteonectin and 99.9% for osteocalcin. In this last case, only osteosarcomas were considered. Intensity was higher in vimentin labeling (+++), followed by osteonectin (++) and osteocalcin (+). One osteosarcoma showed negative immunostaining for vimentin and of samples submitted to anti-osteocalcin immunostaining, three osteosarcomas and one fibrosarcoma had negative staining. Besides identifying mesenchymal origin, vimentin elevated expression in canine bone tumors can be related to epithelial-mesenchymal transition, leading to more aggressive tumoral phenotypes and metastasis development. Similarly, high osteonectin expression is implicated in neoplastic cell invasion and is also related to metastasis spread. Decreased osteocalcin expression was found in some osteosarcoma samples and can be related to poor prognosis, as in human osteosarcomas. Our findings suggest that vimentin, osteonectin and osteocalcin not only aid diagnosis but can be related to prognosis in canine primary bone tumors, especially osteosarcomas and its osteoblastic subtype.
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Papapanagiotou A, Sgourakis G, Karkoulias K, Raptis D, Parkin E, Brotzakis P, Panchal S, Papavassiliou AG. Osteonectin as a screening marker for pancreatic cancer: A prospective study. J Int Med Res 2018; 46:2769-2779. [PMID: 29756486 PMCID: PMC6124255 DOI: 10.1177/0300060518772413] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Objective Osteonectin plays a central role in various processes during the development of pancreatic adenocarcinoma. This prospective pilot study was performed to determine the feasibility of serum osteonectin as a screening tool for pancreatic cancer. Methods Blood samples were collected from 15 consecutive patients with newly diagnosed pancreatic cancer and 30 matched healthy controls. Serum osteonectin was measured using an osteonectin enzyme-linked immunosorbent assay kit. The primary outcomes were the diagnostic performance of serum osteonectin and the threshold value for differentiation of patients from controls. Results The median/quartile range of serum osteonectin in patients and controls were 306.8/288.5 ng/mL and 67.5/39.8 ng/mL, respectively. Osteonectin concentrations significantly differed among the study groups. A plasma osteonectin concentration of >100.18 ng/mL as selected by the receiver operating characteristic curves demonstrated an estimated area under the curve of 86% for prediction of pancreatic cancer. Tumour size was a significant predictor of serum osteonectin. A statistically significant difference in serum osteonectin between T1/T2 and T3/T4 tumours was found. Post-hoc comparisons revealed statistically significant differences in the serum osteonectin among the control, T1/T2, and T3/T4 groups. Conclusion Osteonectin may be used as a screening tool for pancreatic cancer, although this must be validated in prospective studies.
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Affiliation(s)
- Angeliki Papapanagiotou
- 1 National and Kapodistrian University of Athens, Medical School, Department of Biological Chemistry, Athens, Greece
| | - George Sgourakis
- 2 2nd Department of Surgery and Surgical Oncology Unit of Red Cross Hospital, Athens, Greece.,3 Department of Surgery, Furness General Hospital, University Hospitals of Morecambe Bay, Barrow-in-Furness, UK
| | - Kyriakos Karkoulias
- 2 2nd Department of Surgery and Surgical Oncology Unit of Red Cross Hospital, Athens, Greece
| | - Dimitris Raptis
- 2 2nd Department of Surgery and Surgical Oncology Unit of Red Cross Hospital, Athens, Greece
| | - Edward Parkin
- 4 Faculty of Health and Medicine, Furness College, Lancaster University, Lancaster, UK
| | - Pantelis Brotzakis
- 2 2nd Department of Surgery and Surgical Oncology Unit of Red Cross Hospital, Athens, Greece
| | - Sanjay Panchal
- 3 Department of Surgery, Furness General Hospital, University Hospitals of Morecambe Bay, Barrow-in-Furness, UK
| | - Athanasios G Papavassiliou
- 1 National and Kapodistrian University of Athens, Medical School, Department of Biological Chemistry, Athens, Greece
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Zwakenberg SR, van der Schouw YT, Schalkwijk CG, Spijkerman AMW, Beulens JWJ. Bone markers and cardiovascular risk in type 2 diabetes patients. Cardiovasc Diabetol 2018; 17:45. [PMID: 29571288 PMCID: PMC5866514 DOI: 10.1186/s12933-018-0691-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 03/19/2018] [Indexed: 12/11/2022] Open
Abstract
Background Vascular calcifications are associated with a three- to fourfold increased risk of cardiovascular disease (CVD) and are highly prevalent in type 2 diabetes patients. Emerging evidence indicates that vascular calcification is a process of active bone formation regulated by stimulators and inhibitors of calcification. Therefore, this study aimed to evaluate whether six bone markers are associated with CVD risk in patients with type 2 diabetes. Methods We used data of a case-cohort study, nested in the EPIC-NL cohort, comprising 134 CVD cases and a random subcohort of 218 participants, all with type 2 diabetes at baseline. Six bone markers (osteocalcin, osteopontin, osteonectin, osteoprotegerin, alkaline phosphatase and sclerostin) were measured in baseline plasma samples with multiplex assays and information on CVD events was obtained. The association of bone makers with CVD risk was evaluated using Cox proportional hazard analyses. Results Higher concentrations of plasma osteopontin were associated (ptrend < 0.01) with an increased CVD risk with a hazard ratio of 2.00 (95%-CI 1.20–3.35) for the highest versus the lowest quartile in a multivariable adjusted model. The other bone markers were not associated with CVD risk. Conclusions Higher osteopontin concentrations were associated with an increased CVD risk in type 2 diabetes patients. No consistent associations were found for the other five bone markers and risk of CVD in type 2 diabetes patients. Electronic supplementary material The online version of this article (10.1186/s12933-018-0691-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sabine R Zwakenberg
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, PO box 85500, 3508 GA, Utrecht, The Netherlands.
| | - Yvonne T van der Schouw
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, PO box 85500, 3508 GA, Utrecht, The Netherlands
| | - Casper G Schalkwijk
- Department of Internal Medicine, Maastricht University Medical Centre, Maastricht, The Netherlands.,CARIM School for Cardiovascular Diseases, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Annemieke M W Spijkerman
- Center for Nutrition, Prevention and Health Services, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Joline W J Beulens
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, PO box 85500, 3508 GA, Utrecht, The Netherlands.,Department of Epidemiology & Biostatistics, EMGO+ Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands
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12
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Da Silva AF, Marques MR, Da Rosa WLO, Tarquinio SBC, Rosalen PL, Barros SP. Biological response to self-etch adhesive after partial caries removal in rats. Clin Oral Investig 2018; 22:2161-73. [PMID: 29380132 DOI: 10.1007/s00784-017-2303-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 12/07/2017] [Indexed: 01/14/2023]
Abstract
OBJECTIVES The purposes of this study were to evaluate a model of slow caries progression and to investigate the performance of a self-etch adhesive system for partial caries removal. MATERIALS AND METHODS Rat molars were infected with Streptococcus sobrinus 6715 culture. Different time points were analyzed: days 78, 85, and 95 (± 2). After this, the samples were processed for morphological analysis. Additionally, the first molars were restored with zinc oxide and eugenol (IRM™; Dentsply; Brazil) or adhesive system (Clearfil SE Bond™; Kuraray Medical; Japan) 78 days after caries induction. After, 3 or 15 days post-treatment, the animals were euthanized, and their mandibles were processed for morphological analysis, classified by means of scores, and submitted to statistical analysis. Subsequently, immunohistochemical analysis was performed for osteonectin (OSN) and transforming growth factor-ß1 (TGF-ß1) expression. RESULTS According to the caries induction model used, on day 95 greater inflammatory infiltration (p < 0.001), and more extensive degradation of secondary/primary dentin were demonstrated than on day 78 (p < 0.05). Furthermore, the restorative materials presented similar performance (p > 0.05) and proved to be fundamental to control the carious lesion. The TGF-ß1 and OSN were shown to be active during the caries process. CONCLUSIONS The slow caries lesion model was feasible for morphological analysis of the dentin-pulp complex. The self-etch adhesive system triggered no acute inflammatory infiltration or pulp necrosis, instead it seemed to stimulate early pulp repair. CLINICAL RELEVANCE Clearfil SE Bond™ applied directly on caries-affected dentin did not predispose to pulp inflammation; instead, it appeared to provide early biological benefits.
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13
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Abstract
The matricellular protein SPARC (secreted protein acidic and rich in cysteine, also known as osteonectin or as BM-40) is a collagen-binding protein with a capacity to induce cell rounding and influence proliferation in cultured cells. In mice that do not express SPARC, fibrillar collagen is reduced in some adult tissues; notably, a reduction in fibrosis is reported in response to fibrotic stimuli in lungs, heart, skin, liver, and in the eye. Recently, mutations in the gene encoding SPARC were found in patients afflicted with osteogenesis imperfecta. Thus, SPARC appears to be a critical mediator of collagen deposition and assembly in tissues. A useful tool for assessing the function of SPARC in ECM assembly is a source of purified recombinant SPARC. Outlined in this chapter is a brief discussion of different strategies for generating recombinant SPARC and an experimental strategy for producing and purifying human recombinant SPARC driven by baculoviral expression in insect cells.
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Affiliation(s)
- Gail Workman
- Matrix Biology Program, Benaroya Research Institute, Seattle, WA, United States
| | - Amy D Bradshaw
- Gazes Cardiac Research Institute, Medical University of South Carolina, Charleston, SC, United States; Ralph H. Johnson Department of Veteran's Affairs Medical Center, Charleston, SC, United States.
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14
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Luna-Luna M, Cruz-Robles D, Ávila-Vanzzini N, Herrera-Alarcón V, Martínez-Reding J, Criales-Vera S, Sandoval-Zárate J, Vargas-Barrón J, Martínez-Sánchez C, Tovar-Palacio AR, Fragoso JM, Carreón-Torres E, Vargas-Alarcón G, Pérez-Méndez Ó. Differential expression of osteopontin, and osteoprotegerin mRNA in epicardial adipose tissue between patients with severe coronary artery disease and aortic valvular stenosis: association with HDL subclasses. Lipids Health Dis 2017; 16:156. [PMID: 28821297 PMCID: PMC5563041 DOI: 10.1186/s12944-017-0550-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 08/14/2017] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Previous studies suggest a relationship of the epicardial adipose tissue (EAT) with progression and calcification of the atherosclerotic plaque; however, it is unknown if this tissue expresses genes that may participate on these processes and if the expression of these genes is regulated by high-density lipoprotein (HDL) subclasses. METHODS To explore this possibility, we determined the mRNA expression by qPCR of a pro-calcifying gene (osteopontin (OPN)), and two anti-calcifying genes (osteoprotegerin (OPG) and osteonectin (ON)), in biopsies of EAT obtained from 15 patients with coronary artery disease (CAD) determined by angiography, and 15 patients with diagnostic of aortic valve stenosis but without CAD as control group. We determined the distribution and composition of HDL subclasses by electrophoresis and their statistical relationship with the gene expression in EAT. RESULTS EAT from CAD patients showed a higher expression level of OPN and OPG than control group, whereas ON expression was similar between groups. Large HDL subclasses were cholesterol-poor in CAD patients as estimated by the cholesterol-to-phospholipid ratio. A linear regression model showed an independent association of OPN expression with HDL3a-cholesterol, and OPG expression with the relative proportion of HDL3b protein. Logistic analysis determined that OPN expression was positively associated with the presence of atherosclerotic plaque CONCLUSION: OPN, ON, and OPG genes are transcribed in EAT; to the exception of ON, the level of expression was different in CAD patients and control group, and correlated with some HDL subclasses, suggesting a new role of these lipoproteins.
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Affiliation(s)
- María Luna-Luna
- Department of Molecular Biology, Instituto Nacional de Cardiología "Ignacio Chávez", Juan Badiano 1, Sección XVI, 14080, México City, D.F., Mexico
| | - David Cruz-Robles
- Department of Molecular Biology, Instituto Nacional de Cardiología "Ignacio Chávez", Juan Badiano 1, Sección XVI, 14080, México City, D.F., Mexico
| | - Nydia Ávila-Vanzzini
- Department of Echocardiography, Instituto Nacional de Cardiología "Ignacio Chávez", México City, Mexico
| | - Valentín Herrera-Alarcón
- Department of Cardiothoracic Surgery, Instituto Nacional de Cardiología "Ignacio Chávez", México City, Mexico
| | - Jesús Martínez-Reding
- Department of Adult Cardiology, Instituto Nacional de Cardiología "Ignacio Chávez", México City, Mexico
| | - Sergio Criales-Vera
- Department of Radiology, Instituto Nacional de Cardiología "Ignacio Chávez", México City, Mexico.,Study Group of Atherosclerosis, Instituto Nacional de Cardiología "Ignacio Chávez", México City, Mexico
| | - Julio Sandoval-Zárate
- Department of Cardiopulmonary, Instituto Nacional de Cardiología "Ignacio Chávez", México City, Mexico.,Study Group of Atherosclerosis, Instituto Nacional de Cardiología "Ignacio Chávez", México City, Mexico
| | - Jesús Vargas-Barrón
- Department of Echocardiography, Instituto Nacional de Cardiología "Ignacio Chávez", México City, Mexico.,Study Group of Atherosclerosis, Instituto Nacional de Cardiología "Ignacio Chávez", México City, Mexico
| | - Carlos Martínez-Sánchez
- Department of Emergency, Instituto Nacional de Cardiología "Ignacio Chávez", México City, Mexico.,Study Group of Atherosclerosis, Instituto Nacional de Cardiología "Ignacio Chávez", México City, Mexico
| | - Armando Roberto Tovar-Palacio
- Department of Physiology of Nutrition, Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán", México City, Mexico
| | - José Manuel Fragoso
- Department of Molecular Biology, Instituto Nacional de Cardiología "Ignacio Chávez", Juan Badiano 1, Sección XVI, 14080, México City, D.F., Mexico.,Study Group of Atherosclerosis, Instituto Nacional de Cardiología "Ignacio Chávez", México City, Mexico
| | - Elizabeth Carreón-Torres
- Department of Molecular Biology, Instituto Nacional de Cardiología "Ignacio Chávez", Juan Badiano 1, Sección XVI, 14080, México City, D.F., Mexico.,Study Group of Atherosclerosis, Instituto Nacional de Cardiología "Ignacio Chávez", México City, Mexico
| | - Gilberto Vargas-Alarcón
- Department of Molecular Biology, Instituto Nacional de Cardiología "Ignacio Chávez", Juan Badiano 1, Sección XVI, 14080, México City, D.F., Mexico.,Study Group of Atherosclerosis, Instituto Nacional de Cardiología "Ignacio Chávez", México City, Mexico
| | - Óscar Pérez-Méndez
- Department of Molecular Biology, Instituto Nacional de Cardiología "Ignacio Chávez", Juan Badiano 1, Sección XVI, 14080, México City, D.F., Mexico. .,Study Group of Atherosclerosis, Instituto Nacional de Cardiología "Ignacio Chávez", México City, Mexico.
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15
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Xu L, Niu M, Yu W, Xia W, Gong F, Wang O. Associations between FGF21, osteonectin and bone turnover markers in type 2 diabetic patients with albuminuria. J Diabetes Complications 2017; 31:583-588. [PMID: 27916484 DOI: 10.1016/j.jdiacomp.2016.11.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 11/09/2016] [Accepted: 11/13/2016] [Indexed: 10/20/2022]
Abstract
AIM We measured the levels of bone turnover markers (BTMs) in patients with early diabetic nephropathy from type 2 diabetes mellitus (T2DM), and investigated the associations of BTMs with adipokines, serum fibroblast growth factor-21 (FGF21) and osteonectin. METHODS We included 159 males and 300 females with T2DM in this cross-sectional study. Clinical characteristics, BTMs and adipokines levels were measured. RESULTS One-hundred and ninety-two (41.8%) patients presented with albuminuria. Patients with albuminuria had significantly higher levels of serum osteonectin (P<0.0001) and FGF21 (P=0.0125) than those with normoalbuminuria. Serum levels of P1NP were slightly lower among patients with albuminuria (P=0.031), but the difference disappeared after adjusting for FBG, PBG, and HbA1c. Serum FGF21 levels were independently and negatively related to eGFR (overall β=-0.161, P=0.001; albuminuria group β=-0.240, P=0.001) but not related to uACR. While Osteonectin was independently and positively related to uACR (overall β=0.209, P=0.001; albuminuria group β=0.170, P=0.021). The levels of serum FGF21 were independently inversely related with P1NP (overall β=-0.192, P<0.0001; albuminuria group β=-0.195, P=0.031). CONCLUSIONS Our results suggest that persistent hyperglycemia may inhibit bone formation. Both osteonectin and FGF21 were associated with early nephropathy in T2DM patients, albeit with different patterns.
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Affiliation(s)
- Lingling Xu
- Department of Endocrinology, Key Laboratory of Endocrinology, Ministry of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Shuaifuyuan No.1, Dongcheng District, Beijing 100730, China
| | - Meng Niu
- Department of Endocrinology, Traditional Chinese Medicine Hospital of Muping District of Yantai City, Yantai, Shandong, China
| | - Weihong Yu
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Beijing, China
| | - Weibo Xia
- Department of Endocrinology, Key Laboratory of Endocrinology, Ministry of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Shuaifuyuan No.1, Dongcheng District, Beijing 100730, China
| | - Fengying Gong
- Department of Endocrinology, Key Laboratory of Endocrinology, Ministry of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Shuaifuyuan No.1, Dongcheng District, Beijing 100730, China
| | - Ou Wang
- Department of Endocrinology, Key Laboratory of Endocrinology, Ministry of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Shuaifuyuan No.1, Dongcheng District, Beijing 100730, China.
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16
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Yang SY, Strong N, Gong X, Heggeness MH. Differentiation of nerve-derived adult pluripotent stem cells into osteoblastic and endothelial cells. Spine J 2017; 17:277-81. [PMID: 27737805 DOI: 10.1016/j.spinee.2016.10.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Revised: 09/12/2016] [Accepted: 10/07/2016] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Stem cell-involved tissue engineering has gained dramatic attention as a therapeutic strategy for tissue regeneration including bone repair. However, the currently available possibilities to use embryonic stem cells and induced pluripotent stem cells (iPCs) face potential ethical issues, as well as risks of malignant transformation and immune rejection. Recently identified peripheral nerve-derived adult pluripotent stem cells (NEDAPS) that quickly proliferate after exposure to bone morphogenetic protein-2 (BMP-2) or nerve trauma and exhibit many embryonic stem cell characteristics may provide an attractive source cells for a variety of regenerative therapies. PURPOSE The study aimed to examine the differentiation potential of the NEDAPS cells into osteoblastic cells and endothelial cells. STUDY DESIGN/SETTING An in vitro investigation was undertaken to induce mouse NEDAPS cells into the phenotypes of osteoblastic and endothelial cells. METHODS NEDAPS cells were isolated from low-dose BMP-2-exposed mouse sciatic nerves by collagenase and trypsin extraction. The cells were cultured in a stem cell maintenance medium, and the expression of KLF4, Sox2, c-Myc, and Oct4 before differentiation was confirmed. The cells were then subcultured in a complete osteogenic cell induction medium or endothelial cell growth medium, respectively, at 37°C and 5%CO2 atmosphere. Histologic, morphologic, and molecular assessments were performed 7 days later. RESULTS The cells propagated in complete osteogenic medium for 7 days showed strong staining for type I collagen and alkaline phosphatase, suggesting the structural and functional properties of the osteoblastic cells. Further, real-time polymerase chain reaction (RT-PCR) revealed a significant expression of the osteoblast markers osteocalcin, osteopontin, and type I collagen. Similarly, the cells in endothelial growth medium were successfully differentiated into cobblestone-shaped endothelial cells expressing vascular endothelial growth factor (VEGF) receptors Flk-1 and Flt-1 demonstrated by RT-PCR. CONCLUSIONS NEDAPS cells are readily induced to osteoblastic and endothelial cells, suggesting therapeutic potential for bone repair and other regenerative therapies.
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Ozdemir B, Kurtis B, Tuter G, Senguven B, Yildirim B. Osteocalcin and osteonectin expression after double application of platelet-rich plasma in rabbits. J Istanb Univ Fac Dent 2016; 50:1-9. [PMID: 28955559 PMCID: PMC5573525 DOI: 10.17096/jiufd.40536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 01/21/2016] [Indexed: 11/16/2022] Open
Abstract
Purpose: Platelet-rich plasma (PRP) is a novel method
for transferring autogenous growth factors to the
wound area. The aim of this study was to evaluate the
efficacy of double-application of PRP (DA-PRP) on
bone healing in rabbit cranial defects by examining
osteonectin (ON) and osteocalcin (OC) expression.
Materials and Methods: Twenty-eight rabbits, each with two
surgically prepared calvarial bone defects, were included
in this study and divided into six groups: The defects
(N=56) were treated with either a single-application of
PRP (SA-PRP) (n=10), a combination of SA-PRP and betatricalciumphosphate
(SA-PRP+β-TCP) (n=10), only DAPRP
(n=8), both DA-PRP and beta-tricalciumphosphate
(DA-PRP+β-TCP) (n=8), only beta-tricalciumphosphate
(β-TCP) (n=10), or controls (n=10). The animals were
sacrificed at 30th day postoperatively and samples were
immunohistochemically examined for ON and OC expressions.
Results: It was determined that DA-PRP did not
significantly improve the ON and OC percentages
achieved by SA-PRP or the controls. The three groups
treated with β-TCP showed a higher percentage of ON
than those treated without β-TCP (p<0.05). The β-TCP
treated groups and SA-PRP group demonstrated higher
OC percentage than DA-PRP and control groups (p<0.05). Conclusion: The present findings suggest that DAPRP
did not have a significant effect on the healing
of non-critical size rabbit cranial bone defects.
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Affiliation(s)
- Burcu Ozdemir
- Department of Periodontology, Faculty of Dentistry, Gazi University, Turkey
| | - Bulent Kurtis
- Department of Periodontology, Faculty of Dentistry, Gazi University, Turkey
| | - Gulay Tuter
- Department of Periodontology, Faculty of Dentistry, Gazi University, Turkey
| | - Burcu Senguven
- Department of Periodontology, Faculty of Dentistry, Gazi University, Turkey
| | - Benay Yildirim
- Department of Periodontology, Faculty of Dentistry, Gazi University, Turkey
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18
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Thangavelu M, R Narasimha R, Adithan A, A C, Jong-Hoon K, Thotapalli Parvathaleswara S. Reengineered graft copolymers as a potential alternative for the bone tissue engineering application by inducing osteogenic markers expression and biocompatibility. Colloids Surf B Biointerfaces 2016; 143:15-26. [PMID: 26998863 DOI: 10.1016/j.colsurfb.2016.03.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 02/22/2016] [Accepted: 03/06/2016] [Indexed: 11/24/2022]
Abstract
Composite scaffolds of nano-hydroxyapatite with demineralized bone matrix were prepared and they were graft copolymerized for better bone regeneration and drug delivery applications. The graft copolymers were characterized for their physiochemical properties using conventional methods like FTIR, TGA, XRD and SEM. The scaffolds were seeded with 3T3 and MG63 cells for studying their biocompatibility and their temporal expression of ALP activity, the rate of calcium deposition and their gene expression of collagen type I (Coll-1), osteopontin (OP), osteonectin (ON), and osteocalcin (OC) were studied. In vivo studies were conducted using sub-cutaneous implantation models in male Wister rats for 6 months. Periodic radiography and post-autopsy histopathology was analysed at 15days, 1, 2, 3, 4, 5, and 6 months. The obtained in vitro results clearly confirm that the bone scaffolds prepared in this study are biocompatible, superior osteoinductivity, capable of supporting growth, maturation of MG 63 osteoblast like cells; the gene expression profile revealed that the material is capable of supporting the in vitro growth and maturation of osteoblast-like cells and maturation. The in vivo results stand a testimony to the in vitro results in proving the biocompatibility and osteoinductivity of the materials.
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Affiliation(s)
- Muthukumar Thangavelu
- Bio-Products Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600-020, Tamil Nadu, India; Department of Physiology, College of Veterinary Medicine, Chonbuk National University, 79 Gobong-ro, Iksan-city, Jeollabuk-Do 570-752, Republic of Korea.
| | - Raghavan R Narasimha
- Bio-Products Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600-020, Tamil Nadu, India
| | - Aravinthan Adithan
- Department of Physiology, College of Veterinary Medicine, Chonbuk National University, 79 Gobong-ro, Iksan-city, Jeollabuk-Do 570-752, Republic of Korea
| | - Chandrasekaran A
- Senior Consultant, Chennai Orthopaedic Care and Research Centre, Plot 19, Ashok Brindhavan, Ist Main Road, Iyyappanthangal, Chennai 600056, India
| | - Kim Jong-Hoon
- Department of Physiology, College of Veterinary Medicine, Chonbuk National University, 79 Gobong-ro, Iksan-city, Jeollabuk-Do 570-752, Republic of Korea.
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19
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Berezin AE, Kremzer AA. Predictive value of circulating osteonectin in patients with ischemic symptomatic chronic heart failure. Biomed J 2016; 38:523-30. [PMID: 27013452 PMCID: PMC6138259 DOI: 10.1016/j.bj.2015.08.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Accepted: 08/13/2015] [Indexed: 11/30/2022] Open
Abstract
Background Osteonectin (OSN) plays a pivotal role in cardiac remodeling, but predictive value for OSN in ischemic chronic heart failure (CHF) has not been defined. The aim of the study was to evaluate the prognostic value of OSN for cumulative survival and hospitalization among patients with ischemic-induced CHF. Methods A total of 154 patients with ischemic symptomatic moderate-to-severe CHF were enrolled in the study at discharge from the hospital. Observation period was up to 3 years (156 weeks). Blood samples for biomarkers measurements were collected at baseline prior to study entry. ELISA methods for measurements of circulating level of OSN were used. Results During a median follow-up of 2.18 years, 21 participants died and 106 subjects were re-admitted. Medians of circulating levels of OSN in survival and died patient cohorts were 670.96 ng/mL (95% confidence interval [CI] = 636.53–705.35 ng/mL) and 907.84 ng/mL (95% CI = 878.02–937.60 ng/mL). Receiver operation characteristic curve analysis has shown that cut off point of OSN concentration for cumulative survival function was 845.15 ng/mL. It has been found a significant divergence of Kaplan–Meier survival curves in patients with high (>845.15 ng/mL) and low (<845.15 ng/mL) concentrations of OSN. Circulating OSN independently predicted all-cause mortality (odds ratio [OR] = 1.23; 95% CI = 1.10–1.36; p < 0.001), CHF-related death (OR = 1.46; 95% CI = 1.22–1.80; p < 0.001), and also CHF-related re-admission (OR = 1.92; 95% CI = 1.77–2.45; p < 0.001) within 3 years of observation period. Conclusion Increased circulating secreted protein acidic and rich in cysteine family member OSN associates with increased 3-year CHF-related death, all-cause mortality, and risk for recurrent hospitalization due to CHF.
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Affiliation(s)
- Alexander E Berezin
- Department of Internal Medicine, State Medical University, Zaporozhye, Ukraine.
| | - Alexander A Kremzer
- Department of Clinical Pharmacology, State Medical University, Zaporozhye, Ukraine
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20
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Bradshaw AD. The role of secreted protein acidic and rich in cysteine (SPARC) in cardiac repair and fibrosis: Does expression of SPARC by macrophages influence outcomes? J Mol Cell Cardiol 2015; 93:156-61. [PMID: 26582465 DOI: 10.1016/j.yjmcc.2015.11.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 11/10/2015] [Accepted: 11/11/2015] [Indexed: 12/30/2022]
Abstract
Secreted protein acidic and rich in cysteine (SPARC) is a matricellular, collagen-binding protein. Matricellular proteins are described as extracellular matrix-associated proteins that do not serve classical structural roles in the matrix such as those ascribed to laminins and collagens. The family of matricellular proteins modulates cell:extracellular matrix interactions and is actively expressed during tissue remodeling. Functional activities attributed to SPARC in cultured cells include regulation of cell adhesion, cytoskeletal rearrangement, proliferation, and matrix assembly. The primary phenotype characteristic of SPARC-null mice is a deficit in amounts of fibrillar collagen and fibril morphology. Strikingly, SPARC-null mice demonstrate a blunted fibrotic response in a number of different tissue settings. The role of monocyte/macrophages as an important component of tissue fibrosis is becoming increasingly appreciated. Expression of SPARC by bone marrow derived inflammatory cells raises the interesting proposition that SPARC produced by infiltrating leukocytes might contribute to the course of inflammation and tissue fibrosis in the heart. This review will summarize results from studies defining the function of SPARC in myocardial repair and fibrosis and results from other non-cardiac tissues that shed light onto possible consequences of SPARC expression by monocyte/macrophages in the setting of heart disease.
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Affiliation(s)
- Amy D Bradshaw
- Gazes Cardiac Research Institute, Division of Cardiology, Department of Medicine, Medical University of South Carolina, MSC 773, Charleston, SC 29425, United States; Ralph H. Johnson Department of Veterans Affairs Medical Center, Charleston, SC, United States.
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21
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Farrokhi E, GhatrehSamani K, Hashemzadeh Chaleshtori M, Tabatabaiefar MA. Effect of Oxidized Low Density Lipoprotein on the Expression of Runx2 and SPARC Genes in Vascular Smooth Muscle Cells. Iran Biomed J 2015; 19:160-4. [PMID: 26025968 PMCID: PMC4571011 DOI: 10.7508/ibj.2015.03.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Background: Vascular calcification is an important stage in atherosclerosis. During this stage, vascular smooth muscle cells (VSMC) synthesize many osteogenic factors such as osteonectin (encoded by SPARC). Oxidative stress plays a critical role in atherosclerosis progression, and its accumulation in the vascular wall stimulates the development of atherosclerosis and vascular calcification. The osteonectin overexpression has been observed in the arterial wall during the course of atherosclerosis. However, the regulatory mechanism of oxidized low density lipoprotein (oxLDL)-mediated vascular calcification remains to be clarified. The aim of this study was to investigate the effect of oxLDL on the osteonectin gene expression through the Runx2 transcription factor. Methods: In this experimental study, VSMC were cultured in F-12K media and then treated with oxLDL. The expression of Runx2 and osteonectin genes was determined by real-time PCR method. Protein levels were investigated by the western blotting technique. The Runx2 gene was knocked down using siRNA in order to determine whether Runx2 regulates the osteonectin expression in VSMC induced by oxLDL. Then transfected cells were treated with oxLDL, and the expression levels of Runx2 and osteonectin were determined again. Results: oxLDL was found to increase Runx2 and osteonectin gene expression (4.8 ± 0.47- and 9.2 ± 1.96-fold, respectively) after 48 h. Western blotting analysis confirmed the induced levels of Runx2 and osteonectin proteins. However, oxLDL-induced osteonectin expression was not observed to be blocked by Runx2 knockdown. Conclusion: The up-regulation of osteonectin by oxLDL is independent of Runx2, and it may be mediated by other transcription factors.
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Affiliation(s)
- Effat Farrokhi
- Cellular and Molecular Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Keihan GhatrehSamani
- Clinical Biochemistry Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | | | - Mohammad Amin Tabatabaiefar
- Dept. of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
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22
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Torres-Núñez E, Suarez-Bregua P, Cal L, Cal R, Cerdá-Reverter JM, Rotllant J. Molecular cloning and characterization of the matricellular protein Sparc/ osteonectin in flatfish, Scophthalmus maximus, and its developmental stage-dependent transcriptional regulation during metamorphosis. Gene 2015; 568:129-39. [PMID: 25981593 DOI: 10.1016/j.gene.2015.05.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 05/11/2015] [Accepted: 05/12/2015] [Indexed: 11/30/2022]
Abstract
SPARC/osteonectin is a multifunctional matricellular glycoprotein, which is expressed in embryonic and adult tissues that undergo active proliferation and dynamic morphogenesis. Recent studies indicate that Sparc expression appears early in development, although its function and regulation during development are largely unknown. In this report, we describe the isolation, characterization, post-embryonic developmental expression and environmental thermal regulation of sparc in turbot. The full-length turbot sparc cDNA contains 930 bp and encodes a protein of 310 amino acids, which shares 77, 75 and 80% identity with human, frog and zebrafish, respectively. Results of whole-mount in situ hybridization reveal a dynamic expression profile during post-embryonic turbot development. Sparc is expressed differentially in the cranioencephalic region; mainly in jaws, branchial arches, fin folds and rays of caudal, dorsal and anal fins. Furthermore, ontogenetic studies demonstrated that Sparc gene expression is dynamically regulated during post-embryonic turbot development, with high expression during stage-specific post-embryonic remodeling. Additionally, the effect of thermal environmental conditions on turbot development and on ontogenetic sparc expression was evaluated.
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Affiliation(s)
- E Torres-Núñez
- Aquatic Molecular Pathobiology Group, Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Cientificas (CSIC), Vigo, Spain
| | - P Suarez-Bregua
- Aquatic Molecular Pathobiology Group, Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Cientificas (CSIC), Vigo, Spain
| | - L Cal
- Aquatic Molecular Pathobiology Group, Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Cientificas (CSIC), Vigo, Spain
| | - R Cal
- Instituto Español de Oceanografia (IEO), Vigo, Spain
| | - J M Cerdá-Reverter
- Control of Food Intake Group, Department of Fish Physiology and Biotechnology, Instituto de Acuicultura de Torre de la Sal (IATS-CSIC), Castellón, Spain
| | - J Rotllant
- Aquatic Molecular Pathobiology Group, Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Cientificas (CSIC), Vigo, Spain.
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Ram VS, Parthiban, Sudhakar U, Mithradas N, Prabhakar R. Bonebiomarkers in periodontal disease: a review article. J Clin Diagn Res 2015; 9:ZE07-10. [PMID: 25738099 DOI: 10.7860/jcdr/2015/11268.5438] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Accepted: 11/08/2014] [Indexed: 11/24/2022]
Abstract
Periodontitis, is an inflammatory state of the tooth supporting structures and if left untreated, the disease continues to progressive bone destruction and subsequent tooth loss. The increasing prevelance of periodontal disease paved way to the development of new diagnostic tests that could detect the presence of active disease,the course of the disease and its response to treatment. Bone is a metabolically active tissue and undergo continuous remodelling, a process that largely relies on the activity of osteoclasts to remove bone and of osteoblasts to form bone. In health ,bone resorption and formation are coupled to each other and its long term maintenance of skeletal balance is brought about by the systemic hormones and local mediators.In contrasts,during disease there is a pronounced in balance in bone turnover. Bone biomarkers which are produced either in health or in disease state are tell tale markers which would be used to monitor the health status. This review highlights, the recent advances in the use of biomarkers of bone remodelling,that could facilitate the screening, diagnosis and management of periodontal diseases.
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Affiliation(s)
- V Shankar Ram
- Reader, Department of Periodontics, Thai Moogambigai Dental College , Chennai, Tamil Nadu, India
| | - Parthiban
- Senior Lecturer, Department of Periodontics, Thai Moogambigai Dental College , Chennai, Tamil Nadu, India
| | - Uma Sudhakar
- Professor and HOD, Department of Periodontics, Thai Moogambigai Dental College , Chennai, Tamil Nadu, India
| | - Nimisha Mithradas
- Post Graduate Student, Department of Periodontics, Thai Moogambigai Dental College , Chennai, Tamil Nadu, India
| | - Ramachandra Prabhakar
- Dean, Professor and HOD, Department of Orthodontics, Thai Moogambigai Dental College , Chennai, Tamil Nadu, India
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Abstract
Pancreatic cancer has a considerably poor prognosis with a 5-year survival probability of less than 5% when all stages are combined. Pancreatic cancer is characterized by its dense stroma, which is involved in the critical interplay with the tumor cells throughout tumor progression and furthermore, creates a barrier restricting efficient penetration of therapeutics. Alterations in a large number of genes are reflected by a limited number of signaling pathways, which are potential targets. Understanding more about the molecular basis of this devastating cancer type regarding tumor microenvironment, distinct subpopulations of cells, epithelial-to-mesenchymal transition and inflammation will lead to the development of various targeted therapies for controlling tumor growth and metastasis. In this complex scenario of pancreatic cancer, especially members of the “small integrin binding ligand N-linked glycoproteins” (SIBLINGs) and “secreted protein acidic and rich in cysteine” (SPARC) families have emerged due to their prominent roles in properties including proliferation, differentiation, apoptosis, adhesion, migration, angiogenesis, wound repair and regulation of extracellular matrix remodeling. SIBLINGs consist of five members, which include osteopontin (OPN), bone sialoprotein, dentin matrix protein 1, dentin sialophosphoprotein and matrix extracellular phosphoglycoprotein. The SPARC family of modular extracellular proteins is comprised of SPARC/osteonectin (ON) and SPARC-like 1 (hevin); secreted modular calcium binding proteins; testicans and follistatin-like protein. In this review, we especially focus on OPN and ON, elaborating on their special and growing importance in pancreatic cancer diagnosis and prognosis.
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James EN, Delany AM, Nair LS. Post-transcriptional regulation in osteoblasts using localized delivery of miR-29a inhibitor from nanofibers to enhance extracellular matrix deposition. Acta Biomater 2014; 10:3571-80. [PMID: 24816265 DOI: 10.1016/j.actbio.2014.04.026] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Revised: 03/31/2014] [Accepted: 04/24/2014] [Indexed: 02/03/2023]
Abstract
MicroRNAs are important post-transcriptional regulators of skeletal biology, and miRNA-based therapeutics have the potential to aid bone repair. However, efficient tools for delivering miRNA mimics or inhibitors to specific target tissues are limited. Polymeric nanofibers closely mimic natural extracellular matrix (ECM) morphology, and are attractive candidates for supporting delivery of cells and bone-anabolic reagents. It is hypothesized that gelatin nanofibers could be used for the localized transient delivery of miRNA-based therapeutics, using miR-29a inhibitor as a prototype to increase ECM deposition. miR-29 family members are negative regulators of ECM synthesis, targeting the mRNAs of selected collagens and osteonectin/SPARC. Inhibiting miR-29 activity may therefore increase ECM production by cells. miR-29a inhibitor-loaded gelatin nanofibers, prepared by electrospinning, demonstrated continuous release of miRNA inhibitor over 72h. Pre-osteoblastic murine MC3T3-E1 cell line seeded on miR-29a inhibitor-loaded nanofibers synthesized more osteonectin, indicating efficient inhibitor delivery. These cells also displayed increased Igf1 and Tgfb1 mRNA. Moreover, primary bone marrow stromal cells from transgenic pOBCol3.6cyan reporter mice, grown on miR-29a inhibitor scaffolds, displayed increased col3.6 cyan expression as well as collagen production. This study demonstrates that ECM mimicking nanostructured scaffolds, in conjunction with bioactive miRNA-based therapeutics, may serve as a novel platform for developing biologically active localized cell delivery systems.
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Kim JY, Jeong D, Ahn TS, Kim HJ, Park DS, Park SY, Bae SB, Lee S, Lee SS, Lee MS, Cho HD, Baek MJ. Expression of Secreted Protein Acidic and Rich in Cysteine in the Stroma of a Colorectal Carcinoma is Associated With Patient Prognosis. Ann Coloproctol 2013; 29:93-9. [PMID: 23862126 PMCID: PMC3710779 DOI: 10.3393/ac.2013.29.3.93] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Accepted: 04/17/2013] [Indexed: 01/17/2023] Open
Abstract
Purpose Secreted protein acidic and rich in cysteine (SPARC), also known as osteonectin or basement-membrane-40 (BM-40), is a member of a family of matricellular proteins, whose functions are to modulate cell-matrix interactions, growth and angiogenesis in colorectal cancer. In this study, the expression of SPARC was evaluated and its correlations with clinicopathological parameters were investigated. Methods The researchers analyzed the expression patterns of SPARC by using immunohistochemistry in 332 cases of colorectal cancer of tissue microarray. The clinicopathological characteristics were defined by using the TNM criteria of the Union for International Cancer Control. Clinicopathological factors such as age, sex, histologic type of the tumor, pathologic tumor stage, TNM stage, and lymphovascular invasion were evaluated according to the SPARC expression. Results The hazard ratios expressing SPARC in tumor cells, in the stroma, and in both tumor cells and the stroma were 2.10 (P = 0.036), 3.27 (P = 0.003) and 2.12 (P = 0.038), respectively. Patient survival was decreased in patient expressing SPARC in the stroma, and this result showed statistical significance (P = 0.016). Conclusion These findings suggest that SPARC expression in a tumor and in the stroma correlates with disease progression and may be used as a prognostic marker for colorectal cancer.
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Affiliation(s)
- Jeong Yeon Kim
- Department of Pathology, Soonchunhyang University College of Medicine, Cheonan, Korea
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