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RNA Extraction from Cartilage: Issues, Methods, Tips. Int J Mol Sci 2023; 24:ijms24032120. [PMID: 36768444 PMCID: PMC9917073 DOI: 10.3390/ijms24032120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/07/2023] [Accepted: 01/18/2023] [Indexed: 01/25/2023] Open
Abstract
The increase in degenerative diseases involving articular cartilage has pushed research to focus on their pathogenesis and treatment, exploiting increasingly complex techniques. Gene expression analyses from tissue are representative of the in vivo situation, but the protocols to be applied to obtain a reliable analysis are not completely cleared through customs. Thus, RNA extraction from fresh samples and specifically from musculoskeletal tissue such as cartilage is still a challenging issue. The aim of the review is to provide an overview of the techniques described in the literature for RNA extraction, highlighting limits and possibilities. The research retrieved 65 papers suitable for the purposes. The results highlighted the great difficulty in comparing the different studies, both for the sources of tissue used and for the techniques employed, as well as the details about protocols. Few papers compared different RNA extraction methods or homogenization techniques; the case study reported by authors about RNA extraction from sheep cartilage has not found an analog in the literature, confirming the existence of a relevant blank on studies about RNA extraction from cartilage tissue. However, the state of the art depicted can be used as a starting point to improve and expand studies on this topic.
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Sturabotti E, Vetica F, Toscano G, Calcaterra A, Martinelli A, Migneco LM, Leonelli F. N-Acetyl-l-phenylalanine Racemization during TBTU Amidation: An In-Depth Study for the Synthesis of Anti-Inflammatory 2-( N-Acetyl)-l-phenylalanylamido-2-deoxy-d-glucose (NAPA). MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28020581. [PMID: 36677671 PMCID: PMC9863357 DOI: 10.3390/molecules28020581] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 12/27/2022] [Accepted: 01/04/2023] [Indexed: 01/11/2023]
Abstract
A thorough study on the amidation conditions of N-acetyl-l-phenylalanine using TBTU and various bases is reported for the synthesis of 2-(N-acetyl)-l-phenylalanylamido-2-deoxy-d-glucose (NAPA), a promising drug for the treatment of joints diseases. TBTU-mediated diastereoselective amidation reaction with 1,3,4,6-tetra-O-acetyl-β-d-glucosamine always gave racemization of N-acetyl-l-phenylalanine. The stereochemical retention under amidation conditions was studied in detail in the presence of difference bases and via other control experiments, evidencing the possibility to reduce racemization using pyridine as base.
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Affiliation(s)
- Elisa Sturabotti
- Department of Chemistry, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
- Correspondence: (E.S.); (A.C.); (F.L.)
| | - Fabrizio Vetica
- Department of Chemistry, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Giorgia Toscano
- Department of Chemistry, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Andrea Calcaterra
- Department of Chemistry and Technology of Drugs, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
- Correspondence: (E.S.); (A.C.); (F.L.)
| | - Andrea Martinelli
- Department of Chemistry, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Luisa Maria Migneco
- Department of Chemistry, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Francesca Leonelli
- Department of Chemistry, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
- Correspondence: (E.S.); (A.C.); (F.L.)
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Mariano A, Bigioni I, Misiti F, Fattorini L, d’Abusco AS, Rodio A. The Nutraceuticals as Modern Key to Achieve Erythrocyte Oxidative Stress Fighting in Osteoarthritis. Curr Issues Mol Biol 2022; 44:3481-3495. [PMID: 36005136 PMCID: PMC9406754 DOI: 10.3390/cimb44080240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/29/2022] [Accepted: 08/03/2022] [Indexed: 11/16/2022] Open
Abstract
Osteoarthritis (OA), the most common joint disease, shows an increasing prevalence in the aging population in industrialized countries. OA is characterized by low-grade chronic inflammation, which causes degeneration of all joint tissues, such as articular cartilage, subchondral bone, and synovial membrane, leading to pain and loss of functionality. Erythrocytes, the most abundant blood cells, have as their primary function oxygen transport, which induces reactive oxygen species (ROS) production. For this reason, the erythrocytes have several mechanisms to counteract ROS injuries, which cause damage to lipids and proteins of the cell membrane. Oxidative stress and inflammation are highly correlated and are both causes of joint disorders. In the synovial fluid and blood of osteoarthritis patients, erythrocyte antioxidant enzyme expression is decreased. To date, OA is a non-curable disease, treated mainly with non-steroidal anti-inflammatory drugs and corticosteroids for a prolonged period of time, which cause several side effects; thus, the search for natural remedies with anti-inflammatory and antioxidant activities is always ongoing. In this review, we analyze several manuscripts describing the effect of traditional remedies, such as Harpagophytum procumbens, Curcumin longa, and Boswellia serrata extracts, in the treatments of OA for their anti-inflammatory, analgesic, and antioxidant activity. The effects of such remedies have been studied both in in vitro and in vivo models, considering both joint cells and erythrocytes.
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Affiliation(s)
- Alessia Mariano
- Department of Biochemical Sciences, Sapienza University of Rome, 00185 Rome, Italy
| | - Irene Bigioni
- Department of Biochemical Sciences, Sapienza University of Rome, 00185 Rome, Italy
| | - Francesco Misiti
- Department of Human Sciences, Society and Health, University of Cassino and Southern Lazio, 03043 Cassino, Italy
- Correspondence:
| | - Luigi Fattorini
- Department of Physiology and Pharmacology, Sapienza University of Rome, 00185 Rome, Italy
| | - Anna Scotto d’Abusco
- Department of Biochemical Sciences, Sapienza University of Rome, 00185 Rome, Italy
| | - Angelo Rodio
- Department of Human Sciences, Society and Health, University of Cassino and Southern Lazio, 03043 Cassino, Italy
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Glucosamine and Chondroitin Sulfate: Is There Any Scientific Evidence for Their Effectiveness as Disease-Modifying Drugs in Knee Osteoarthritis Preclinical Studies?-A Systematic Review from 2000 to 2021. Animals (Basel) 2021; 11:ani11061608. [PMID: 34072407 PMCID: PMC8228516 DOI: 10.3390/ani11061608] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 05/19/2021] [Accepted: 05/27/2021] [Indexed: 12/19/2022] Open
Abstract
Simple Summary Osteoarthritis is the most common progressive joint disease diagnosed in companion animals and its management continues to be a significant challenge. Nutraceuticals have been widely investigated over the years in the treatment of osteoarthritis and among them, glucosamine and chondroitin sulfate treatments are probably the most common therapies used in veterinary management. However, heterogeneous results were obtained among animal studies and the evidence of their efficacy is still controversial. Animal models have a crucial role in studying the histological changes and evaluating the therapy efficacy of different drugs. Consequently, we consider it may be of interest to evaluate the effectiveness of the most representative nutraceuticals in experimental animal studies of osteoarthritis. In this systematic review, we found a large inconsistency among the experimental protocols, but a positive cartilage response and biochemical modulation were observed in half of the evaluated articles, mainly associated with pre-emptive administrations and with some therapies’ combinations. Even though some of these results were promising, additional data are needed to draw solid conclusions, and further studies evaluating their efficacy in the long term and focusing on other synovial components may be needed to clarify their function. Abstract Glucosamine and chondroitin sulfate have been proposed due to their physiological and functional benefits in the management of osteoarthritis in companion animals. However, the scientific evidence for their use is still controversial. The purpose of this review was to critically elucidate the efficacy of these nutraceutical therapies in delaying the progression of osteoarthritis, evaluating their impact on the synovial knee joint tissues and biochemical markers in preclinical studies by systematically reviewing the last two decades of peer-reviewed publications on experimental osteoarthritis. Three databases (PubMed, Scopus and, Web of Science) were screened for eligible studies. Twenty-two articles were included in the review. Preclinical studies showed a great heterogeneity among the experimental designs and their outcomes. Generally, the evaluated nutraceuticals, alone or in combination, did not seem to prevent the subchondral bone changes, the synovial inflammation or the osteophyte formation. However, further experimental studies may be needed to evaluate their effect at those levels. Regarding the cartilage status and biomarkers, positive responses were identified in approximately half of the evaluated articles. Furthermore, beneficial effects were associated with the pre-emptive administrations, higher doses and, multimodality approaches with some combined therapies. However, additional studies in the long term and with good quality and systematic design are required.
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Lopreiato M, Di Cristofano S, Cocchiola R, Mariano A, Guerrizio L, Scandurra R, Mosca L, Raimondo D, d’Abusco AS. Biochemical and Computational Studies of the Interaction between a Glucosamine Derivative, NAPA, and the IKK α Kinase. Int J Mol Sci 2021; 22:ijms22041643. [PMID: 33562013 PMCID: PMC7915277 DOI: 10.3390/ijms22041643] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 02/01/2021] [Accepted: 02/02/2021] [Indexed: 12/23/2022] Open
Abstract
The glucosamine derivative 2-(N-Acetyl)-L-phenylalanylamido-2-deoxy-β-D-glucose (NAPA), was shown to inhibit the kinase activity of IKKα, one of the two catalytic subunits of IKK complex, decreasing the inflammatory status in osteoarthritis chondrocytes. In the present work we have investigated the inhibition mechanism of IKKα by NAPA by combining computational simulations, in vitro assays and Mass Spectrometry (MS) technique. The kinase in vitro assay was conducted using a recombinant IKKα and IKKtide, a 20 amino acid peptide substrate derived from IkBα kinase protein and containing the serine residues Ser32 and Ser36. Phosphorylated peptide production was measured by Ultra Performance Liquid Chromatography coupled with Mass Spectrometry (UPLC-MS), and the atomic interaction between IKKα and NAPA has been studied by molecular docking and Molecular Dynamics (MD) approaches. Here we report that NAPA was able to inhibit the IKKα kinase activity with an IC50 of 0.5 mM, to decrease the Km value from 0.337 mM to 0.402 mM and the Vmax from 0.0257 mM·min−1 to 0.0076 mM·min−1. The computational analyses indicate the region between the KD, ULD and SDD domains of IKKα as the optimal binding site explored by NAPA. Biochemical data indicate that there is a non-significant difference between Km and Ki whereas there is a statistically significant difference between the two Vmax values. This evidence, combined with computational results, consistently indicates that the inhibition is non-competitive, and that the NAPA binding site is different than that of ATP or IKKtide.
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Affiliation(s)
- Mariangela Lopreiato
- Department of Biochemical Sciences, Sapienza University of Roma, P.le Aldo Moro 5, 00185 Rome, Italy; (M.L.); (R.C.); (A.M.); (L.G.); (R.S.); (L.M.)
- Department of Medicina Sperimentale, Università Magna Graecia, Campus S. Venuta, 88100 Catanzaro, Italy
| | - Samuele Di Cristofano
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, 00161 Rome, Italy;
| | - Rossana Cocchiola
- Department of Biochemical Sciences, Sapienza University of Roma, P.le Aldo Moro 5, 00185 Rome, Italy; (M.L.); (R.C.); (A.M.); (L.G.); (R.S.); (L.M.)
- Clinical Trial Unit, Bambino Gesù Children’s Hospital, IRCSS, P. Sant’Onofrio 4, 00165 Rome, Italy
| | - Alessia Mariano
- Department of Biochemical Sciences, Sapienza University of Roma, P.le Aldo Moro 5, 00185 Rome, Italy; (M.L.); (R.C.); (A.M.); (L.G.); (R.S.); (L.M.)
| | - Libera Guerrizio
- Department of Biochemical Sciences, Sapienza University of Roma, P.le Aldo Moro 5, 00185 Rome, Italy; (M.L.); (R.C.); (A.M.); (L.G.); (R.S.); (L.M.)
| | - Roberto Scandurra
- Department of Biochemical Sciences, Sapienza University of Roma, P.le Aldo Moro 5, 00185 Rome, Italy; (M.L.); (R.C.); (A.M.); (L.G.); (R.S.); (L.M.)
| | - Luciana Mosca
- Department of Biochemical Sciences, Sapienza University of Roma, P.le Aldo Moro 5, 00185 Rome, Italy; (M.L.); (R.C.); (A.M.); (L.G.); (R.S.); (L.M.)
| | - Domenico Raimondo
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, 00161 Rome, Italy;
- Correspondence: (D.R.); (A.S.d.)
| | - Anna Scotto d’Abusco
- Department of Biochemical Sciences, Sapienza University of Roma, P.le Aldo Moro 5, 00185 Rome, Italy; (M.L.); (R.C.); (A.M.); (L.G.); (R.S.); (L.M.)
- Correspondence: (D.R.); (A.S.d.)
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Mariano A, Di Sotto A, Leopizzi M, Garzoli S, Di Maio V, Gullì M, Dalla Vedova P, Ammendola S, Scotto d’Abusco A. Antiarthritic Effects of a Root Extract from Harpagophytum procumbens DC: Novel Insights into the Molecular Mechanisms and Possible Bioactive Phytochemicals. Nutrients 2020; 12:nu12092545. [PMID: 32842461 PMCID: PMC7551290 DOI: 10.3390/nu12092545] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/19/2020] [Accepted: 08/21/2020] [Indexed: 02/07/2023] Open
Abstract
Harpagophytum procumbens (Burch.) DC. ex Meisn. is a traditional remedy for osteoarticular diseases, including osteoarthritis (OA), although the bioactive constituents and mechanisms involved are yet to be clarified. In the present study, an aqueous H. procumbens root extract (HPE; containing 1.2% harpagoside) was characterized for its effects on synoviocytes from OA patients and phytochemical composition in polyphenols, and volatile compounds were detected. HPE powder was dissolved in different solvents, including deionized water (HPEH2O), DMSO (HPEDMSO), 100% v/v ethanol (HPEEtOH100), and 50% v/v ethanol (HPEEtOH50). The highest polyphenol levels were found in HPEDMSO and HPEEtOH50, whereas different volatile compounds, mainly β-caryophyllene and eugenol, were detected in all the extracts except for HPEH2O. HPEH2O and HPEDMSO were able to enhance CB2 receptor expression and to downregulate PI-PLC β2 in synovial membranes; moreover, all the extracts inhibited FAAH activity. The present results highlight for the first time a multitarget modulation of the endocannabinoid system by HPE, likely ascribable to its hydrosoluble compounds, along with the presence of volatile compounds in H. procumbens root. Although hydrosoluble compounds seem to be mainly responsible for endocannabinoid modulation by HPE, a possible contribution of volatile compounds can be suggested, strengthening the hypothesis that the entire phytocomplex can contribute to the H. procumbens healing properties.
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Affiliation(s)
- Alessia Mariano
- Department of Biochemical Sciences, Sapienza University of Roma, P.le Aldo Moro 5, 00185 Roma, Italy;
| | - Antonella Di Sotto
- Department of Physiology and Pharmacology, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (A.D.S.); (M.G.)
| | - Martina Leopizzi
- Department of Medico-Surgical Sciences and Biotechnologies, Polo Pontino-Sapienza University, 04100 Latina, Italy; (M.L.); (V.D.M.)
| | - Stefania Garzoli
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy;
| | - Valeria Di Maio
- Department of Medico-Surgical Sciences and Biotechnologies, Polo Pontino-Sapienza University, 04100 Latina, Italy; (M.L.); (V.D.M.)
| | - Marco Gullì
- Department of Physiology and Pharmacology, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (A.D.S.); (M.G.)
| | - Pietro Dalla Vedova
- UOC di Ortopedia e Traumatologia, Ospedale Santa Scolastica di Cassino, ASL di Frosinone, Via S. Pasquale, 03043 Cassino, Italy;
| | - Sergio Ammendola
- Ambiotec S.A.S. Via Appia Nord 47, 04012 Cisterna di Latina (LT), Italy;
| | - Anna Scotto d’Abusco
- Department of Biochemical Sciences, Sapienza University of Roma, P.le Aldo Moro 5, 00185 Roma, Italy;
- Correspondence: ; Tel.: +39-06-4991-0947
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The N-Acetyl Phenylalanine Glucosamine Derivative Attenuates the Inflammatory/Catabolic Environment in a Chondrocyte-Synoviocyte Co-Culture System. Sci Rep 2019; 9:13603. [PMID: 31537813 PMCID: PMC6753094 DOI: 10.1038/s41598-019-49188-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 08/15/2019] [Indexed: 12/18/2022] Open
Abstract
Osteoarthritis (OA), the most prevalent degenerative joint disease, still lacks a true disease-modifying therapy. The involvement of the NF-κB pathway and its upstream activating kinases in OA pathogenesis has been recognized for many years. The ability of the N-acetyl phenylalanine glucosamine derivative (NAPA) to increase anabolism and reduce catabolism via inhibition of IKKα kinase has been previously observed in vitro and in vivo. The present study aims to confirm the chondroprotective effects of NAPA in an in vitro model of joint OA established with primary cells, respecting both the crosstalk between chondrocytes and synoviocytes and their phenotypes. This model satisfactorily reproduces some features of the previously investigated DMM model, such as the prominent induction of ADAMTS-5 upon inflammatory stimulation. Both gene and protein expression analysis indicated the ability of NAPA to counteract key cartilage catabolic enzymes (ADAMTS-5) and effectors (MCP-1). Molecular analysis showed the ability of NAPA to reduce IKKα nuclear translocation and H3Ser10 phosphorylation, thus inhibiting IKKα transactivation of NF-κB signalling, a pivotal step in the NF-κB-dependent gene expression of some of its targets. In conclusion, our data confirm that NAPA could truly act as a disease-modifying drug in OA.
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Chondroprotective activity of N-acetyl phenylalanine glucosamine derivative on knee joint structure and inflammation in a murine model of osteoarthritis. Osteoarthritis Cartilage 2017; 25:589-599. [PMID: 27836674 DOI: 10.1016/j.joca.2016.10.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 10/25/2016] [Accepted: 10/26/2016] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Osteoarthritis (OA), the most common chronic degenerative joint disease, is characterized by joint structure changes and inflammation, both mediated by the IκB kinase (IKK) signalosome complex. The ability of N-acetyl phenylalanine derivative (NAPA) to increase cartilage matrix components and to reduce inflammatory cytokines, inhibiting IKKα kinase activity, has been observed in vitro. The present study aims to further clarify the effect of NAPA in counteracting OA progression, in an in vivo mouse model after destabilization of the medial meniscus (DMM). DESIGN 26 mice were divided into three groups: (1) DMM surgery without treatment; (2) DMM surgery treated after 2 weeks with one intra-articular injection of NAPA (2.5 mM) and (3) no DMM surgery. At the end of experimental times, both knee joints of the animals were analyzed through histology, histomorphometry, immunohistochemistry and microhardness of subchondral bone (SB) tests. RESULTS The injection of NAPA significantly improved cartilage thickness (CT) and reduced Chambers and Mankin modified scores and fibrillation index (FI), with weaker MMP13, ADAMTS5, MMP10 and IKKα staining. The microhardness measurements did not shown statistically significant differences between the different groups. CONCLUSIONS NAPA markedly improved the physical structure of articular cartilage while reducing catabolic enzymes, extracellular matrix (ECM) remodeling and IKKα expression, showing to be able to exert a chondroprotective activity in vivo.
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Chang NJ, Lin YT, Lin CC, Wang HC, Hsu HC, Yeh ML. The repair of full-thickness articular cartilage defect using intra-articular administration of N-acetyl-D-glucosamine in the rabbit knee: randomized controlled trial. Biomed Eng Online 2015; 14:105. [PMID: 26582033 PMCID: PMC4652361 DOI: 10.1186/s12938-015-0100-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 11/06/2015] [Indexed: 01/13/2023] Open
Abstract
Background Although various alterative models of therapy are used for cartilage repair, no definite conclusion has been reached. Glucosamine (GlcN) is widely used as a nutritional supplement. However, the clinical- evidence-based outcome of GlcN administration remains controversial. N-acetyl-d-glucosamine (GlcNAc), a derivative of GlcN, shows chondroprotective activity and mediates the activation of articular chondrocytes. Therefore, we investigated the effect of intra-articular administration of GlcNAc in rabbits’ knee joints with experimental full-thickness articular cartilage (FTAC) defects. Methods Twelve male adult New Zealand white rabbits, providing 24 knees, were used in this study. FTAC defects were created in the high-weight-bearing area of the medial femoral condyles of bilateral knees. All rabbits were randomly allocated to analysis at postsurgical week 4 or postsurgical week 12. In the week 4 group, rabbits’ knees (six per group) were intra-articularly injected with normal saline or with GlcNAc twice per week for 3 weeks, beginning 1 week postoperatively. In the week 12 group, the rabbits’ knees (six in each group) were intra-articularly injected with normal saline or with GlcNAc twice per week for 4 weeks, beginning 1 week postoperatively. Rabbits were sacrificed at 4 or 12 weeks after surgery for macroscopic, histological and radiological examinations of the knee joints. Results All rabbits had no systemic or local adverse effects. The saline and GlcNAc groups showed visible differences in healing of the FTAC defect at the end of testing. At week 4, the GlcNAc group had a higher level of collagen type II (COL II) and showed up-regulated production of transforming growth factor (TGF)-β2 and TGF-β3, suggesting the involvement of endogenous growth factors. At week 12, the GlcNAc group displayed formation of hyaline-like cartilage regeneration with mature chondrocytes (SOX9+), robust glycosaminoglycan (GAG) content, and positive COL II content in both the adjacent cartilage and reparative sites. However, the saline group demonstrated mainly fibrocartilage scar tissue, indicating COL I expression. Furthermore, the GlcNAc group had significantly higher bone volume per tissue volume and higher trabecular thickness than the saline group. Conclusions Intra-articular GlcNAc may promote the repair of experimental FTAC defects in the rabbit knee joint model.
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Affiliation(s)
- Nai-Jen Chang
- Department of Sports Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
| | - Yi-Ting Lin
- Department of Biomedical Engineering, National Cheng Kung University, 1 University Rd., Tainan, 701, Taiwan.
| | - Chih-Chan Lin
- Laboratory Animal Center, Department of Medical Research, Chi-Mei Medical Center, Tainan, Taiwan.
| | - Hsueh-Chun Wang
- Department of Biomedical Engineering, National Cheng Kung University, 1 University Rd., Tainan, 701, Taiwan.
| | - Horng-Chaung Hsu
- Department of Orthopedics, China Medical University Hospital, Taichung, Taiwan.
| | - Ming-Long Yeh
- Department of Biomedical Engineering, National Cheng Kung University, 1 University Rd., Tainan, 701, Taiwan. .,Medical Device Innovation Center, National Cheng Kung University, Tainan, 701, Taiwan.
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Barreto RB, Sadigursky D, Rezende MUD, Hernandez AJ. Effect of hyaluronic acid on chondrocyte apoptosis. ACTA ORTOPEDICA BRASILEIRA 2015; 23:90-3. [PMID: 27069407 PMCID: PMC4813412 DOI: 10.1590/1413-785220152302144341] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
OBJECTIVE: To determine the percentage of apoptotic cells in a contusion model of osteoarthritis (OA) and to assess whether intra-articular injection of high doses of hyaluronic acid (HA) immediately after trauma reduces chondrocyte apoptosis. METHODS: Forty knees from adult rabbits were impacted thrice with a 1 kg block released through a 1 meter tall cylinder (29.4 Joules). Subsequently, 2 mL of HA was injected in one knee and 2 mL saline in the contra-lateral knee. Medication were administered twice a week for 30 days, when animals were sacrificed. Specimens were prepared for optical microscopy exam and terminal deoxynucleotidyl transferase end labeling assay (TUNEL). RESULTS: The apoptosis rate in the contusion model was 68.01% (± 19.73%), a higher rate than previously described. HA significantly reduced the rate of apoptosis to 53.52% (± 18.09) (p <0.001). CONCLUSION: Intra-articular HA administration started immediately after trauma reduces impact-induced chondrocyte apoptosis rates in rabbits. Level of Evidence I, Experimental Study.
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Stoppoloni D, Politi L, Leopizzi M, Gaetani S, Guazzo R, Basciani S, Moreschini O, De Santi M, Scandurra R, Scotto d'Abusco A. Effect of glucosamine and its peptidyl-derivative on the production of extracellular matrix components by human primary chondrocytes. Osteoarthritis Cartilage 2015; 23:103-13. [PMID: 25219669 DOI: 10.1016/j.joca.2014.09.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 08/28/2014] [Accepted: 09/02/2014] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Aim of this study is to investigate the effects of Glucosamine (GlcN) and its peptidyl-derivative, 2-(N-Acetyl)-L-phenylalanylamido-2-deoxy-β-D-glucose (NAPA), on extracellular matrix (ECM) synthesis in human primary chondrocytes (HPCs). METHODS Dose-dependent effect of GlcN and NAPA on Glycosaminoglycan (GAG), Collagen type II (Col2) and Small Leucine-Rich Proteoglycans (SLRPs) was examined by incubating HPCs, cultured in micromasses (3D), with various amounts of two molecules, administered as either GlcN alone or NAPA alone or GlcN plus NAPA (G + N). Immunohystochemical and immunofluorescent staining and biochemical analysis were used to determine the impact of the two molecules on ECM production. Gene expression analysis was performed by TaqMan Real-Time Polymerase Chain Reaction (PCR) assays. RESULTS The lowest concentration to which GlcN and NAPA were able to affect ECM synthesis was 1 mM. Both molecules administered alone and as G + N stimulated GAGs and SLRPs synthesis at different extent, NAPA and mainly G + N stimulated Col2 production, whereas GlcN was not effective. Both molecules were able to induce Insulin Growth Factor-I (IGF-I) and to stimulate SOX-9, whereas NAPA and G + N were able to up-regulate both Hyaluronic Acid Synthase-2 and Hyaluronic acid. Very interesting is the synergistic effect observed when chondrocyte micromasses were treated with G + N. CONCLUSIONS The observed anabolic effects and optimal concentrations of GlcN and NAPA, in addition to beneficial effects on other cellular pathways, previously reported, such as the inhibition of IKKα, could be useful to formulate new cartilage repair strategies.
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Affiliation(s)
- D Stoppoloni
- Dept. of Biochemical Sciences, Sapienza University of Roma, P.le Aldo Moro, 5, 00185 Roma, Italy.
| | - L Politi
- Dept. of Biochemical Sciences, Sapienza University of Roma, P.le Aldo Moro, 5, 00185 Roma, Italy.
| | - M Leopizzi
- Dept. of Medico-Surgical Sciences and Biotechnologies, Faculty of Medicine and Pharmacy, Sapienza University, Polo Pontino, Corso Della Repubblica 79, Latina, Italy.
| | - S Gaetani
- Dept. of Physiology and Pharmacology "V. Erspamer", Sapienza University of Roma, P.le Aldo Moro, 5, 00185 Roma, Italy.
| | - R Guazzo
- Division of Anatomical Pathology, Dept. of Oncology, University Hospital of Siena, Via delle Scotte, 6, 53100 Siena, Italy.
| | - S Basciani
- Dept. of Experimental Medicine, Sapienza University of Roma, V.le Regina Elena, 324, 00161 Roma, Italy.
| | - O Moreschini
- Dept. of Anatomical, Histological, Forensic Medicine and Orthopedics Sciences, Sapienza University of Rome, Rome, Italy.
| | - M De Santi
- Division of Anatomical Pathology, Dept. of Oncology, University Hospital of Siena, Via delle Scotte, 6, 53100 Siena, Italy.
| | - R Scandurra
- Dept. of Biochemical Sciences, Sapienza University of Roma, P.le Aldo Moro, 5, 00185 Roma, Italy.
| | - A Scotto d'Abusco
- Dept. of Biochemical Sciences, Sapienza University of Roma, P.le Aldo Moro, 5, 00185 Roma, Italy.
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12
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Gibson M, Li H, Coburn J, Moroni L, Nahas Z, Bingham C, Yarema K, Elisseeff J. Intra-articular delivery of glucosamine for treatment of experimental osteoarthritis created by a medial meniscectomy in a rat model. J Orthop Res 2014; 32:302-9. [PMID: 24600703 PMCID: PMC8396408 DOI: 10.1002/jor.22445] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Glucosamine (GlcN) is a naturally occurring amino-monosaccharide with putative chondroprotective activity. Optimum responses to GlcN are achieved at concentrations which are impractical with oral dosing. Intra-articular delivery of a bolus dose of GlcN is one way to overcome these pharmacokinetic obstacles. In this study we report the effects of exposing primary human chondrocytes to a bolus dose of GlcN. We also locally administered GlcN in the context of a meniscal transection model of rat osteoarthritis (OA). The knees of male rats were subjected to medial meniscal transection and developed arthritic changes over 4 weeks.Treatment groups were then given thrice weekly 100mL injections of 35 μg, 350 μg, 1.8 mg, or 3.5mg of GlcN dissolved in normal saline. Gross images, modified Mankin scores, and histomorphometric measurements were used as outcome measures. The 350 μg dosage of GlcN had the most significant positive impact on all components of the modified Mankin score. Together, these findings suggest the local delivery of high concentrations of GlcN is well tolerated and can suppress experimental OA through influences on both bone and cartilage.
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Affiliation(s)
- Matthew Gibson
- Translational Tissue Engineering Center, Wilmer Eye Institute and Department of Biomedical Engineering, The Johns Hopkins University, Baltimore, Maryland 21287
| | - Hanwei Li
- Translational Tissue Engineering Center, Wilmer Eye Institute and Department of Biomedical Engineering, The Johns Hopkins University, Baltimore, Maryland 21287
| | - Jeannine Coburn
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, Maryland 21287
| | - Lorenzo Moroni
- Translational Tissue Engineering Center, Wilmer Eye Institute and Department of Biomedical Engineering, The Johns Hopkins University, Baltimore, Maryland 21287
| | - Zayna Nahas
- Translational Tissue Engineering Center, Wilmer Eye Institute and Department of Biomedical Engineering, The Johns Hopkins University, Baltimore, Maryland 21287
| | - Clifford Bingham
- Division of Rheumatology, Department of Medicine, Johns Hopkins University, Baltimore, MD 21224
| | - Kevin Yarema
- Translational Tissue Engineering Center, Wilmer Eye Institute and Department of Biomedical Engineering, The Johns Hopkins University, Baltimore, Maryland 21287
| | - Jennifer Elisseeff
- Translational Tissue Engineering Center, Wilmer Eye Institute and Department of Biomedical Engineering, The Johns Hopkins University, Baltimore, Maryland 21287
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13
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Kwan C, Bell R, Koenig T, Bischofberger A, Horadagoda N, Perkins NR, Jeffcott LB, Dart AJ. Effects of intra-articular sodium pentosan polysulfate and glucosamine on the cytology, total protein concentration and viscosity of synovial fluid in horses. Aust Vet J 2012; 90:315-20. [DOI: 10.1111/j.1751-0813.2012.00959.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- C Kwan
- Research and Clinical Training Unit; University Veterinary Teaching Hospital, University of Sydney; Camden; NSW; Australia
| | - R Bell
- Research and Clinical Training Unit; University Veterinary Teaching Hospital, University of Sydney; Camden; NSW; Australia
| | - T Koenig
- Research and Clinical Training Unit; University Veterinary Teaching Hospital, University of Sydney; Camden; NSW; Australia
| | - A Bischofberger
- Research and Clinical Training Unit; University Veterinary Teaching Hospital, University of Sydney; Camden; NSW; Australia
| | - N Horadagoda
- Research and Clinical Training Unit; University Veterinary Teaching Hospital, University of Sydney; Camden; NSW; Australia
| | - NR Perkins
- Ausvet Animal Health Services; Toowoomba; Queensland; Australia
| | - LB Jeffcott
- Research and Clinical Training Unit; University Veterinary Teaching Hospital, University of Sydney; Camden; NSW; Australia
| | - AJ Dart
- Research and Clinical Training Unit; University Veterinary Teaching Hospital, University of Sydney; Camden; NSW; Australia
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14
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Dodge GR, Regatte RR, Noyszewski EA, Hall JO, Sharma AV, Callaway DA, Reddy R. The Fate of Oral Glucosamine Traced by (13)C Labeling in the Dog. Cartilage 2011; 2:279-85. [PMID: 26069586 PMCID: PMC4300808 DOI: 10.1177/1947603510391780] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
OBJECTIVE It has remained ambiguous as to whether oral dosing of glucosamine (GlcN) would make its way to the joint and affect changes in the cartilage, particularly the integrity of cartilage and chondrocyte function. The objective of this study was to trace the fate of orally dosed GlcN and determine definitively if GlcN was incorporated into cartilage proteoglycans. DESIGN Two dogs were treated with (13)C-GlcN-HCl by oral dosing (500 mg/dog/d for 2 weeks and 250 mg/dog/d for 3 weeks). Cartilage was harvested from the tibial plateau and femoral condyles along with tissue specimens from the liver, spleen, heart, kidney, skin, skeletal muscle, lung, and costal cartilage. Percentages of (13)C and (13)C-GlcN present in each tissue sample were determined by inductively coupled plasma mass spectroscopy (ICP-MS) and nuclear magnetic resonance spectroscopy, respectively. RESULTS In the case of dog 1 (2-week treatment), there was an increase of 2.3% of (13)C present in the articular cartilage compared to the control and an increase of 1.6% of (13)C in dog 2 compared to control. As to be expected, the highest percentage of (13)C in the other tissues tested was found in the liver, and the remaining tissues had percentages of (13)C less than that of articular cartilage. CONCLUSION The results are definitive and for the first time provide conclusive evidence that orally given GlcN can make its way through the digestive tract and be used by chondrocytes in joint cartilage, thereby potentially having an effect on the available GlcN for proteoglycan biosynthesis.
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Affiliation(s)
- George R. Dodge
- Department of Biological Sciences, University of Delaware, Newark, DE, USA,McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, USA,George R. Dodge, PhD, McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, University of Pennsylvania, 424 Stemmler Hall, 36th Street and Hamilton Walk, Philadelphia, PA 19104-6081, USA
| | - Ravinder R. Regatte
- MMRRCC, Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Jeffery O. Hall
- Utah Veterinary Diagnostic Laboratories, Utah State University, Logan, UT, USA
| | - Akella V. Sharma
- MMRRCC, Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
| | - D. Allen Callaway
- Department of Biological Sciences, University of Delaware, Newark, DE, USA
| | - Ravinder Reddy
- MMRRCC, Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
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15
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Scotto d'Abusco A, Politi L, Giordano C, Scandurra R. A peptidyl-glucosamine derivative affects IKKalpha kinase activity in human chondrocytes. Arthritis Res Ther 2010; 12:R18. [PMID: 20113495 PMCID: PMC2875647 DOI: 10.1186/ar2920] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2009] [Revised: 12/02/2009] [Accepted: 01/29/2010] [Indexed: 12/23/2022] Open
Abstract
Introduction Nuclear factor-κB (NF-κB) transcription factor regulates several cell signaling pathways, such as differentiation and inflammation, which are both altered in osteoarthritis. Inhibitor κB kinase (IKK)α and IKKβ are kinases involved in the activation of the NF-κB transcription factor. The aim of the present study was to determine the effects of glucosamine (GlcN), which is administered in the treatment of osteoarthritis, and of its 2-(N-Acetyl)-L-phenylalanylamido-2-deoxy-β-D-glucose (NAPA) derivative on IKK kinases and, consequently, on NF-κB activation in human chondrocytes. Methods The human chondrosarcoma cell line HTB-94 and human primary chondrocytes were stimulated with tumor necrosis factor (TNF)α after pre-treatment with GlcN or NAPA. Gene mRNA expression level was evaluated by real-time PCR. Inhibitor κB protein (IκB)α phosphorylation and p65 nuclear re-localization were analyzed by Western blotting; IKKα nuclear re-localization was also investigated by immunocytochemistry and Western blotting. IKK kinase activity was studied by in vitro kinase assay. Results After TNFα stimulation, the mRNA expression level of some of the genes under NF-κB control, such as interleukin (IL)-6 and IL-8, increased, while treatment with GlcN and NAPA reverted the effect. We investigated the possibility that GlcN and NAPA inhibit IKK kinase activity and found that NAPA inhibits the IKKα kinase activity, whereas GlcN does not. Interestingly, both GlcN and NAPA inhibit IKKα nuclear re-localization. Conclusions Our results demonstrate that glucosamine and its peptidyl derivative can interfere with NF-κB signaling pathway by inhibiting IKKα activity in human chondrocytes. However, the mechanism of action of the two molecules is not completely overlapping. While NAPA can both specifically inhibit the IKKα kinase activity and IKKα nuclear re-localization, GlcN only acts on IKKα nuclear re-localization.
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Affiliation(s)
- Anna Scotto d'Abusco
- Department of Biochemical Sciences, Sapienza University of Roma, P,le Aldo Moro, 5, 00185 Roma, Italy.
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