Orthopaedic trauma to bones, joints, and soft tissues currently involves over 3.6 million patients each year in the U.S. alone, and the number of injuries has been steadily increasing due to the aging population and increased levels of physical activity in older individuals. Problematic severe extremity trauma with bone loss has also recently increased dramatically due to vehicular and military injuries. This application focuses on three major common areas of orthopaedic trauma: articular cartilage degeneration associated with meniscal injuries, impaired fracture healing in the aging, and the unsolved problem of traumatic segmental bone loss. ? ? Two critical interacting regulatory signal pathyways are involved in the repair of orthopaedic bone and joint ? trauma, namely the TGF-beta/BMP pathway and the PTH/PTHrP pathway. These pathways interactively regulate differentiation of mesenchymal stem cells into bone and cartilage, control the phenotypic behavior of these tissues, and constitute a unifying theme for both the basic science and clinical components of th proposed CORT. New data implicating E3 ubiquitin ligases, Smurf 1 and Smurf2, in the control of cell phenotype through degradation of BMP and TGF-beta signaling Smads, respectively, and their regulatory interactions with PTH and inflammatory cytokines, form the basis for the basic science and clinical Project aims. The CORT will involve an Administrative Core and 4 Projects, all of which utilize the research core, a Molecular and Anatomic Imaging Core. All projects involve translational approaches with animal models of injury and repair, as well as 3 clinical studies, including an RCT of PTH in fracture healing in the aging. Project 1 evaluates the role of Smurf2 in molecular events leading to OA after meniscal injury in a murine model, and in humans. Correlation with functional and quantitative MRI outcomes in humans will be studied. ? Project 2 will define the role of Smurfs and PTH in a fracture model in aging mice, to determine the molecular basis for use of PTH in stimulating fracture healing in aging patients. Project 3 will evaluate teriparatide (PTH) as a therapy for acceleration of return to function and quantitative radiographic healing of low energy pelvic fractures in aging patients, based on dramatic preliminary clinical data. Project 4 involves study of the role of Smurfs and PTH modulation of gene therapy with rAAV for allograft healing in mice, and a clinical trial of new high resolution cone beam CT scans in patients to quantify allograft vs autograft healing/vascularity. ?

Agency
National Institute of Health (NIH)
Institute
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
Type
Specialized Center (P50)
Project #
3P50AR054041-03S1
Application #
7681842
Study Section
Special Emphasis Panel (ZAR1-MLB-G (M1))
Program Officer
Panagis, James S
Project Start
2006-08-15
Project End
2011-07-31
Budget Start
2008-08-01
Budget End
2009-07-31
Support Year
3
Fiscal Year
2008
Total Cost
$1
Indirect Cost
Name
University of Rochester
Department
Orthopedics
Type
Schools of Dentistry
DUNS #
041294109
City
Rochester
State
NY
Country
United States
Zip Code
14627
Yukata, Kiminori; Xie, Chao; Li, Tian-Fang et al. (2018) Teriparatide (human PTH1-34) compensates for impaired fracture healing in COX-2 deficient mice. Bone 110:150-159
Li, Xing; Sun, Wen; Li, Jinbo et al. (2017) Clomipramine causes osteoporosis by promoting osteoclastogenesis via E3 ligase Itch, which is prevented by Zoledronic acid. Sci Rep 7:41358
Schwarz, Edward M (2017) Confirmation of Sexual Dimorphisms in Metal Hypersensitivity and Joint Pain Following Total Joint Arthroplasty: Commentary on an article by Marco S. Caicedo, PhD, et al.: ""Females with Unexplained Joint Pain Following Total Joint Arthroplasty Exhibit a H J Bone Joint Surg Am 99:e41
Zhang, Longze; Wang, Tao; Chang, Martin et al. (2017) Teriparatide Treatment Improves Bone Defect Healing Via Anabolic Effects on New Bone Formation and Non-Anabolic Effects on Inhibition of Mast Cells in a Murine Cranial Window Model. J Bone Miner Res 32:1870-1883
Feigenson, Marina; Eliseev, Roman A; Jonason, Jennifer H et al. (2017) PGE2 Receptor Subtype 1 (EP1) Regulates Mesenchymal Stromal Cell Osteogenic Differentiation by Modulating Cellular Energy Metabolism. J Cell Biochem 118:4383-4393
Wang, Wensheng; Wang, Hua; Zhou, Xichao et al. (2017) Lymphatic Endothelial Cells Produce M-CSF, Causing Massive Bone Loss in Mice. J Bone Miner Res 32:939-950
Sun, Wen; Zhang, Hengwei; Wang, Hua et al. (2017) Targeting Notch-Activated M1 Macrophages Attenuates Joint Tissue Damage in a Mouse Model of Inflammatory Arthritis. J Bone Miner Res 32:1469-1480
Le Bleu, Heather K; Kamal, Fadia A; Kelly, Meghan et al. (2017) Extraction of high-quality RNA from human articular cartilage. Anal Biochem 518:134-138
Nishitani, Kohei; Mietus, Zachary; Beck, Christopher A et al. (2017) High dose teriparatide (rPTH1-34) therapy increases callus volume and enhances radiographic healing at 8-weeks in a massive canine femoral allograft model. PLoS One 12:e0185446
Zhang, Yongchun; O'Keefe, Regis J; Jonason, Jennifer H (2017) BMP-TAK1 (MAP3K7) Induces Adipocyte Differentiation Through PPAR? Signaling. J Cell Biochem 118:204-210

Showing the most recent 10 out of 133 publications