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Wilson BM, Moran MM, Meagher MJ, Ross RD, Mashiatulla M, Virdi AS, Sumner DR. Early changes in serum osteocalcin and body weight are predictive of implant fixation in a rat model of implant loosening. J Orthop Res 2020; 38:1216-1227. [PMID: 31825107 PMCID: PMC7225033 DOI: 10.1002/jor.24563] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 11/30/2019] [Indexed: 02/04/2023]
Abstract
Biomarkers are of interest to identify patients at risk for peri-implant osteolysis and aseptic loosening. We used a rat model of particle-induced peri-implant osteolysis to investigate if early changes in biomarkers were associated with subsequent implant fixation strength. Implants were placed in rat femora, which were then challenged with intra-articular knee injections of either clean polyethylene, lipopolysaccharide-doped polyethylene, or cobalt-chromium alloy particles, with particle-free vehicle serving as control (n ≥ 8 per group). Rats were weighed weekly, blood was collected at weeks 0, 3, 5, and 6, and locomotor behavior was assessed 4 days before study conclusion. Rats were euthanized 6 weeks post surgery. Week 6 serum was analyzed for five bone remodeling markers, while longitudinal serum was assessed for osteocalcin. Bone-implant contact, peri-implant trabecular architecture, and implant fixation strength were measured. Rats challenged with cobalt-chromium particles had a significant reduction in implant fixation strength compared with the vehicle-control group (P = .034). This group also had elevated serum osteocalcin (P = .005), depressed weight gain (P = .001) and less frequent rearing behavior (P = .029). Regardless of group, change in serum osteocalcin at week 3 (r = -.368; P = .046), change in weight at week 2 (r = .586; P < .001), as well as weight change at all other time intervals were associated with fixation strength. The finding that early alterations in serum osteocalcin and body weight were predictive of subsequent implant fixation strength supports continued investigation of biomarkers for early detection of peri-implant osteolysis and implant loosening. Further, change in biomarker levels was found to be more indicative of implant fixation status than any single measurement.
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Affiliation(s)
- Brittany M. Wilson
- Department of Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL
| | - Meghan M. Moran
- Department of Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL.,Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL
| | - Matthew J. Meagher
- Department of Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL
| | - Ryan D. Ross
- Department of Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL.,Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL
| | - Maleeha Mashiatulla
- Department of Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL
| | - Amarjit S. Virdi
- Department of Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL.,Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL
| | - D. Rick Sumner
- Department of Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL.,Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL
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Zhou X, Cao X, Tu H, Zhang ZR, Deng L. Inflammation-Targeted Delivery of Celastrol via Neutrophil Membrane-Coated Nanoparticles in the Management of Acute Pancreatitis. Mol Pharm 2019; 16:1397-1405. [PMID: 30753778 DOI: 10.1021/acs.molpharmaceut.8b01342] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Celastrol (CLT)-loaded PEG-PLGA nanoparticles (NPs/CLT) coated with neutrophil membranes (NNPs/CLT) were explored for the management of acute pancreatitis (AP). PEG-PLGA nanoparticles sized around 150 nm were proven to selectively accumulate in the pancreas in rats with AP. NNPs were found to overcome the blood-pancreas barrier and specifically distributed to the pancreatic tissues. Moreover, NNPs showed more selective accumulation in the pancreas than nanoparticles without any membrane coating in AP rats. Compared to CLT solution and the NPs/CLT group, NNPs/CLT significantly downregulated the levels of serum amylase and pancreatic myeloperoxidase in AP rats. Also, using NNPs as the delivery vehicle significantly reduced the systemic toxicity of CLT in AP rats. Together, these results suggest that NNPs/CLT represent a highly promising delivery vehicle for the targeted therapy of AP.
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Affiliation(s)
- Xu Zhou
- Sichuan Provincial Orthopedic Hospital , Chengdu 610041 , China.,Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, West China School of Pharmacy , Sichuan University , Chengdu 610041 , China
| | - Xi Cao
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, West China School of Pharmacy , Sichuan University , Chengdu 610041 , China
| | - He Tu
- Sichuan Provincial Orthopedic Hospital , Chengdu 610041 , China
| | - Zhi-Rong Zhang
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, West China School of Pharmacy , Sichuan University , Chengdu 610041 , China
| | - Li Deng
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, West China School of Pharmacy , Sichuan University , Chengdu 610041 , China
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Zimel MN, Horowitz CB, Rajasekhar VK, Christ AB, Wei X, Wu J, Wojnarowicz PM, Wang D, Goldring SR, Purdue PE, Healey JH. HPMA-Copolymer Nanocarrier Targets Tumor-Associated Macrophages in Primary and Metastatic Breast Cancer. Mol Cancer Ther 2017; 16:2701-2710. [PMID: 28830983 DOI: 10.1158/1535-7163.mct-15-0995] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 07/24/2017] [Accepted: 08/16/2017] [Indexed: 01/03/2023]
Abstract
Polymeric nanocarriers such as N-(2-hydroxypropyl) methacrylamide (HPMA) copolymers deliver drugs to solid tumors and avoid the systemic toxicity of conventional chemotherapy. Because HPMA copolymers can target sites of inflammation and accumulate within innate immune cells, we hypothesized that HPMA copolymers could target tumor-associated macrophages (TAM) in both primary and metastatic tumor microenvironments. We verified this hypothesis, first in preliminary experiments with isolated bone marrow macrophage cultures in vitro and subsequently in a spontaneously metastatic murine breast cancer model generated from a well-established, cytogenetically characterized 4T1 breast cancer cell line. Using our standardized experimental conditions, we detected primary orthotopic tumor growth at 7 days and metastatic tumors at 28 days after orthotopic transplantation of 4T1 cells into the mammary fat pad. We investigated the uptake of HPMA copolymer conjugated with Alexa Fluor 647 and folic acid (P-Alexa647-FA) and HPMA copolymer conjugated with IRDye 800CW (P-IRDye), following their retroorbital injection into the primary and metastatic tumor-bearing mice. A significant uptake of P-IRDye was observed at all primary and metastatic tumor sites in these mice, and the P-Alexa647-FA signal was found specifically within CD11b+ TAMs costained with pan-macrophage marker CD68. These findings demonstrate, for the first time, a novel capacity of a P-Alexa647-FA conjugate to colocalize to CD11b+CD68+ TAMs in both primary and metastatic breast tumors. This underscores the potential of this HPMA nanocarrier to deliver functional therapeutics that specifically target tumor-promoting macrophage activation and/or polarization during tumor development. Mol Cancer Ther; 16(12); 2701-10. ©2017 AACR.
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Affiliation(s)
- Melissa N Zimel
- Orthopaedic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Chloe B Horowitz
- Orthopaedic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Vinagolu K Rajasekhar
- Orthopaedic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | | | - Xin Wei
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska
| | - Jianbo Wu
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska
| | - Paulina M Wojnarowicz
- Department of Cancer Biology and Genetics, Sloan Kettering Institute, New York, New York
| | - Dong Wang
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska
| | | | | | - John H Healey
- Orthopaedic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York. .,Department of Surgery, Weill Cornell Medical College, New York, New York
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Wei X, Li F, Zhao G, Chhonker YS, Averill C, Galdamez J, Purdue PE, Wang X, Fehringer EV, Garvin KL, Goldring SR, Alnouti Y, Wang D. Pharmacokinetic and Biodistribution Studies of HPMA Copolymer Conjugates in an Aseptic Implant Loosening Mouse Model. Mol Pharm 2017; 14:1418-1428. [PMID: 28343392 DOI: 10.1021/acs.molpharmaceut.7b00045] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
N-(2-Hydroxypropyl) methacrylamide (HPMA) copolymers were previously found to represent a versatile delivery platform for the early detection and intervention of orthopedic implant loosening. In this article, we evaluated the impact of different structural parameters of the HPMA copolymeric system (e.g., molecular weight (MW), drug content) to its pharmacokinetics and biodistribution (PK/BD) profile. Using 125I, Alexa Fluor 488, and IRDye 800 CW-labeled HPMA copolymer-dexamethasone (P-Dex) conjugates with different MW and dexamethasone (Dex) contents, we found the MW to be the predominant impact factor on the PK/BD profiles of P-Dex, with Dex content as a secondary impact factor. In gamma counter-based PK/BD studies, increased MW of P-Dex reduced elimination, leading to lower clearance, longer half-life, and higher systemic exposure (AUC and MRT). In the semiquantitative live animal optical imaging evaluation, the distribution of P-Dex to the peri-implant inflammatory lesion increased when MW was increased. This result was further confirmed by FACS analyses of cells isolated from peri-implant regions after systemic administration of Alexa Fluor 488-labeled P-Dex. Since the in vitro cell culture study suggested that the internalization of P-Dex by macrophages is generally independent of P-Dex's MW and Dex content, the impact of the MW and Dex content on its PK/BD profile was most likely exerted at physiological and pathophysiological levels rather than at the cellular level. In both gamma counter-based PK/BD analyses and semiquantitative optical imaging analyses, P-Dex with 6 wt % Dex content showed fast clearance. Dynamic light scattering analyses unexpectedly revealed significant molecular aggregation of P-Dex at this Dex content level. The underlining mechanisms of the aggregation and fast in vivo clearance of the P-Dex warrant further investigation.
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Affiliation(s)
- Xin Wei
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center , Omaha, Nebraska 68198, United States
| | - Fei Li
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center , Omaha, Nebraska 68198, United States
| | - Gang Zhao
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center , Omaha, Nebraska 68198, United States
| | - Yashpal Singh Chhonker
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center , Omaha, Nebraska 68198, United States
| | - Christine Averill
- Hospital for Special Surgery , New York, New York 10021, United States
| | - Josselyn Galdamez
- Hospital for Special Surgery , New York, New York 10021, United States
| | - P Edward Purdue
- Hospital for Special Surgery , New York, New York 10021, United States
| | - Xiaoyan Wang
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center , Omaha, Nebraska 68198, United States
| | - Edward V Fehringer
- Department of Orthopaedic Surgery and Rehabilitation, University of Nebraska Medical Center , Omaha, Nebraska 68198, United States
| | - Kevin L Garvin
- Department of Orthopaedic Surgery and Rehabilitation, University of Nebraska Medical Center , Omaha, Nebraska 68198, United States
| | - Steven R Goldring
- Hospital for Special Surgery , New York, New York 10021, United States
| | - Yazen Alnouti
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center , Omaha, Nebraska 68198, United States
| | - Dong Wang
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center , Omaha, Nebraska 68198, United States.,Department of Orthopaedic Surgery and Rehabilitation, University of Nebraska Medical Center , Omaha, Nebraska 68198, United States
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A review of UHMWPE wear-induced osteolysis: the role for early detection of the immune response. Bone Res 2016; 4:16014. [PMID: 27468360 PMCID: PMC4941197 DOI: 10.1038/boneres.2016.14] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Revised: 05/08/2016] [Accepted: 05/13/2016] [Indexed: 12/15/2022] Open
Abstract
In a world where increasing joint arthroplasties are being performed on increasingly younger patients, osteolysis as the leading cause of failure after total joint arthroplasty (TJA) has gained considerable attention. Ultra-high molecular weight polyethylene wear-induced osteolysis is the process by which prosthetic debris mechanically released from the surface of prosthetic joints induces an immune response that favors bone catabolism, resulting in loosening of prostheses with eventual failure or fracture. The immune response initiated is innate in that it is nonspecific and self-propagating, with monocytic cells and osteoclasts being the main effectors. To date, detecting disease early enough to implement effective intervention without unwanted systemic side effects has been a major barrier. These barriers can be overcome using newer in vivo imaging techniques and modules linked with fluorescence and/or chemotherapies. We discuss the pathogenesis of osteolysis, and provide discussion of the challenges with imaging and therapeutics. We describe a positron emission tomography imaging cinnamoyl-Phe-(D)-Leu-Phe-(D)-Leu-Phe-Lys module, specific to macrophages, which holds promise in early detection of disease and localization of treatment. Further research and increased collaboration among therapeutic and three-dimensional imaging researchers are essential in realizing a solution to clinical osteolysis in TJA.
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