Two compartment pharmacokinetic model describes the intra-articular delivery and retention of rhprg4 following ACL transection in the Yucatan mini pig
© 2018 Orthopaedic Research Society. Published by Wiley Periodicals, Inc..
Treatment of the injured joint with rhPRG4 is based on recent observations that inflammation diminishes expression of native PRG4. Re-establishing lubrication between pressurized and sliding cartilage surfaces during locomotion promotes the nascent expression of PRG4 and thus intra-articular (IA) treatment strategies should be supported by pharmacokinetic evidence establishing the residence time of rhPRG4. A total of 21 Yucatan minipigs weighing ∼55 kg each received 4 mg of 131 I-rhPRG4 delivered by IA injection 5 days following surgical ACL transection. Animals were sequentially euthanized following IA rhPRG4 at 10 min (time zero), 24, 72 h, 6, 13 and 20 days later. The decay of the 131 I-rhPRG4 was measured relative to a non-injected aliquot and normalized to the weight of cartilage samples, menisci and synovium, and known cartilage volumes from each compartment surface obtained from representative Yucatan minipig knees. Decay of 131 I-rhPRG4 from joint tissues best fit a two-compartment model with an α half-life (t1/2α ) of 11.28 h and β half-life (t1/2β ) of 4.81 days. The tibial and femoral cartilage, meniscii, and synovium retained 7.7% of dose at 24 h. High concentrations of rhPRG4 were found in synovial fluid (SF) that was non-aspiratable and resided on the articular surfaces, removable by irrigation, at 10 min following 131 I-rhPRG4 injection. Synovial fluid K21 exceeded K12 and SF t1/2β was 28 days indicating SF is the reservoir for rhPRG4 following IA injection. Clinical Significance: rhPRG4 following IA delivery in a traumatized joint populates articular surfaces for a considerable period and may promote the native expression of PRG4. © 2018 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 37:386-396, 2019.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2019 |
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| Erschienen: |
2019 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:37 |
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| Enthalten in: |
Journal of orthopaedic research : official publication of the Orthopaedic Research Society - 37(2019), 2 vom: 15. Feb., Seite 386-396 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Hurtig, Mark [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 31.10.2019 Date Revised 08.05.2020 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1002/jor.24191 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM291194818 |
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| 245 | 1 | 0 | |a Two compartment pharmacokinetic model describes the intra-articular delivery and retention of rhprg4 following ACL transection in the Yucatan mini pig |
| 264 | 1 | |c 2019 | |
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| 520 | |a © 2018 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. | ||
| 520 | |a Treatment of the injured joint with rhPRG4 is based on recent observations that inflammation diminishes expression of native PRG4. Re-establishing lubrication between pressurized and sliding cartilage surfaces during locomotion promotes the nascent expression of PRG4 and thus intra-articular (IA) treatment strategies should be supported by pharmacokinetic evidence establishing the residence time of rhPRG4. A total of 21 Yucatan minipigs weighing ∼55 kg each received 4 mg of 131 I-rhPRG4 delivered by IA injection 5 days following surgical ACL transection. Animals were sequentially euthanized following IA rhPRG4 at 10 min (time zero), 24, 72 h, 6, 13 and 20 days later. The decay of the 131 I-rhPRG4 was measured relative to a non-injected aliquot and normalized to the weight of cartilage samples, menisci and synovium, and known cartilage volumes from each compartment surface obtained from representative Yucatan minipig knees. Decay of 131 I-rhPRG4 from joint tissues best fit a two-compartment model with an α half-life (t1/2α ) of 11.28 h and β half-life (t1/2β ) of 4.81 days. The tibial and femoral cartilage, meniscii, and synovium retained 7.7% of dose at 24 h. High concentrations of rhPRG4 were found in synovial fluid (SF) that was non-aspiratable and resided on the articular surfaces, removable by irrigation, at 10 min following 131 I-rhPRG4 injection. Synovial fluid K21 exceeded K12 and SF t1/2β was 28 days indicating SF is the reservoir for rhPRG4 following IA injection. Clinical Significance: rhPRG4 following IA delivery in a traumatized joint populates articular surfaces for a considerable period and may promote the native expression of PRG4. © 2018 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 37:386-396, 2019 | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, N.I.H., Extramural | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
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| 700 | 1 | |a Sheardown, Heather |e verfasserin |4 aut | |
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| 700 | 1 | |a Liu, Lina |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Ling |e verfasserin |4 aut | |
| 700 | 1 | |a Elsaid, Khaled A |e verfasserin |4 aut | |
| 700 | 1 | |a Jay, Gregory D |e verfasserin |4 aut | |
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