Skip to main content

Research Repository

Advanced Search

All Outputs (167)

Heterogeneity of proteome dynamics between connective tissue phases of adult tendon (2020)
Journal Article
Choi, H., Simpson, D., Wang, D., Prescott, M., Pitsillides, A. A., Dudhia, J., Clegg, P. D., Ping, P., & Thorpe, C. T. (2020). Heterogeneity of proteome dynamics between connective tissue phases of adult tendon. eLife, 9, https://doi.org/10.7554/elife.55262

Maintenance of connective tissue integrity is fundamental to sustain function, requiring protein turnover to repair damaged tissue. However, connective tissue proteome dynamics remain largely undefined, as do differences in turnover rates of individu... Read More about Heterogeneity of proteome dynamics between connective tissue phases of adult tendon.

Applied mechanical loading to mouse hindlimb acutely increases skeletal perfusion and chronically enhanced vascular porosity (2020)
Journal Article
Gohin, S., Javaheri, B., Hopkinson, M., Pitsillides, A. A., Arnett, T. R., & Chenu, C. (2020). Applied mechanical loading to mouse hindlimb acutely increases skeletal perfusion and chronically enhanced vascular porosity. Journal of Applied Physiology,

Blood supply is essential for osteogenesis, yet its relationship to load-related increases in bone mass is poorly defined. Herein, we aim to investigate the link between load-induced osteogenesis and the blood supply (bone perfusion and vascular poro... Read More about Applied mechanical loading to mouse hindlimb acutely increases skeletal perfusion and chronically enhanced vascular porosity.

Lasting organ-level bone mechanoadaptation is unrelated to local strain (2020)
Journal Article
Javaheri, B., Razi, H., Gohin, S., Wylie, S., Chang, Y. M., Salmon, P., Lee, P. D., & Pitsillides, A. A. (2020). Lasting organ-level bone mechanoadaptation is unrelated to local strain. Science Advances, 6(10), https://doi.org/10.1126/sciadv.aax8301

Bones adapt to mechanical forces according to strict principles predicting straight shape. Most bones are, however, paradoxically curved. To solve this paradox, we used computed tomography–based, four-dimensional imaging methods and computational ana... Read More about Lasting organ-level bone mechanoadaptation is unrelated to local strain.

Conditional deletion of E11/Podoplanin in bone protects against ovariectomy-induced increases in osteoclast formation and activity (2020)
Journal Article
Staines, K., Hopkinson, M., Dillon, S., Stephen, L., Fleming, R., Sophocleous, A., Buttle, D., Pitsillides, A., & Farquharson, C. (2020). Conditional deletion of E11/Podoplanin in bone protects against ovariectomy-induced increases in osteoclast formation and activity. Bioscience Reports, 40, https://doi.org/10.1042/BSR20190329

E11/Podoplanin (Pdpn) is implicated in early osteocytogenesis and the formation of osteocyte dendrites. This dendritic network is critical for bone modelling/remodelling, through the production of receptor activator of nuclear factor κ B (RANK)-ligan... Read More about Conditional deletion of E11/Podoplanin in bone protects against ovariectomy-induced increases in osteoclast formation and activity.

Aging and Mechanoadaptive Responsiveness of Bone (2019)
Journal Article
Javaheri, B., & Pitsillides, A. A. (2019). Aging and Mechanoadaptive Responsiveness of Bone. Current Osteoporosis Reports, 17(6), 560-569. https://doi.org/10.1007/s11914-019-00553-7

Osteoporosis is an age-related disorder characterized by bone loss and increased fracture susceptibility. Whether this is due to reduced loading in less active elderly individuals or inherent modifications in bone cells is uncertain. We suppose that... Read More about Aging and Mechanoadaptive Responsiveness of Bone.

Raman spectroscopy links differentiating osteoblast matrix signatures to pro-angiogenic potential (2019)
Journal Article
Sharma, A., Goring, A., Staines, K. A., Emery, R., Pitsillides, A. A., Oreffo, R. O. C., Mahajan, S., & Clarkin, C. E. (2019). Raman spectroscopy links differentiating osteoblast matrix signatures to pro-angiogenic potential. Matrix Biology, 5, https://doi.org/10.1016/j.mbplus.2019.100018

Mineralization of bone is achieved by the sequential maturation of the immature amorphous calcium phase to mature hydroxyapatite and is central to the process of bone development and repair. To study normal and dysregulated mineralization in vitro, s... Read More about Raman spectroscopy links differentiating osteoblast matrix signatures to pro-angiogenic potential.

Propagation phase-contrast micro-computed tomography allows laboratory-based three-dimensional imaging of articular cartilage down to the cellular level (2019)
Journal Article
Clark, J. N., Garbout, A., Ferreira, S. A., Javaheri, B., Pitsillides, A. A., Rankin, S. M., Jeffers, J. R. T., & Hansen, U. (2019). Propagation phase-contrast micro-computed tomography allows laboratory-based three-dimensional imaging of articular cartilage down to the cellular level. Osteoarthritis and Cartilage, 28, 102-111. https://doi.org/10.1016/j.joca.2019.10.007

High-resolution non-invasive three-dimensional (3D) imaging of chondrocytes in articular cartilage remains elusive. The aim of this study was to explore whether laboratory micro-computed tomography (micro-CT) permits imaging cells within articular ca... Read More about Propagation phase-contrast micro-computed tomography allows laboratory-based three-dimensional imaging of articular cartilage down to the cellular level.

Dchs1-Fat4 regulation of osteogenic differentiation in mouse (2019)
Journal Article
Crespo-Enriquez, I., Hodgson, T., Zakaria, S., Cadoni, E., Shah, M., Allen, S., Al-Krishali, A., Mao, Y., Yiu, A., Villagomez-Olea, G., Petzold, J., Pitsillides, A. A., Irvine, K., & Francis-West, P. (2019). Dchs1-Fat4 regulation of osteogenic differentiation in mouse. Development, 146, https://doi.org/10.1242/dev.176776

In human, mutations of the protocadherins FAT4 and DCHS1 result in Van Maldergem syndrome, which is characterised, in part, by craniofacial abnormalities. Here, we analyse the role of Dchs1-Fat4 signalling during osteoblast differentiation in mouse.... Read More about Dchs1-Fat4 regulation of osteogenic differentiation in mouse.

Regulation of the bone vascular network is sexually dimorphic (2019)
Journal Article
Goring, A., Sharma, A., Javaheri, B., Smith, R. C., Kanczler, J. M., Boyde, A., Hesse, E., Mahajan, S., Olsen, B. R., Pitsillides, A. A., Schneider, P., Oreffo, R. O., & Clarkin, C. E. (2019). Regulation of the bone vascular network is sexually dimorphic. Journal of Bone and Mineral Research, https://doi.org/10.1002/jbmr.3825

Osteoblast (OB) lineage cells are an important source of vascular endothelial growth factor (VEGF), which is critical for bone growth and repair. During bone development, pubertal differences in males and females exist, but little is known about whet... Read More about Regulation of the bone vascular network is sexually dimorphic.

Sost haploinsufficiency provokes peracute lethal cardiac tamponade without rescuing the osteopenia in a mouse model of excess glucocorticoids (2019)
Journal Article
Javaheri, B., Herbert, E., Hopkinson, M., Al-Jazzar, A., & Pitsillides, A. A. (2019). Sost haploinsufficiency provokes peracute lethal cardiac tamponade without rescuing the osteopenia in a mouse model of excess glucocorticoids. American Journal of Pathology, 189(4), 753-761. https://doi.org/10.1016/j.ajpath.2018.12.007

Glucocorticoid-induced secondary osteoporosis is the most predictable side-effect of this anti-inflammatory. One of the main mechanisms by which glucocorticoids achieve such deleterious outcome in bone is by antagonizing Wnt/β-catenin signalling. Scl... Read More about Sost haploinsufficiency provokes peracute lethal cardiac tamponade without rescuing the osteopenia in a mouse model of excess glucocorticoids.

Regional diversity in the murine cortical vascular network is revealed by synchrotron X-ray tomography and is amplified with age (2018)
Journal Article
Núñez, J. A., Goring, A., Javaheri, B., Razi, H., Gomez-Nicola, D., Pitsillides, A. A., Thurner, P. J., Gomez-Nicola, D., Schneider, P., & Clarkin, C. E. (2018). Regional diversity in the murine cortical vascular network is revealed by synchrotron X-ray tomography and is amplified with age. https://doi.org/10.22203/eCM.v035a20

Cortical bone is permeated by a system of pores, occupied by the blood supply and osteocytes. With ageing, bone mass reduction and disruption of the microstructure are associated with reduced vascular supply. Insight into the regulation of the blood... Read More about Regional diversity in the murine cortical vascular network is revealed by synchrotron X-ray tomography and is amplified with age.

Transient peak-strain matching partially recovers the age-impaired mechanoadaptive cortical bone response (2018)
Journal Article
Javaheri, B., Carriero, A., Wood, M., De Souza, R., Lee, P. D., Shefelbine, S., & Pitsillides, A. A. (2018). Transient peak-strain matching partially recovers the age-impaired mechanoadaptive cortical bone response. https://doi.org/10.1038/s41598-018-25084-6

Mechanoadaptation maintains bone mass and architecture; its failure underlies age-related decline in bone strength. It is unclear whether this is due to failure of osteocytes to sense strain, osteoblasts to form bone or insufficient mechanical stimul... Read More about Transient peak-strain matching partially recovers the age-impaired mechanoadaptive cortical bone response.

Sexually dimorphic tibia shape is linked to natural osteoarthritis in STR/Ort mice (2018)
Journal Article
Javaheri, B., Razi, H., Piles, M., De Souza, R., Chang, Y. M., Maric-Mur, I., Hopkinson, M., Lee, P. D., & Pitsillides, A. A. (2018). Sexually dimorphic tibia shape is linked to natural osteoarthritis in STR/Ort mice. Osteoarthritis and Cartilage, 26(6), 807-817. https://doi.org/10.1016/j.joca.2018.03.008

Human osteoarthritis (OA) is detected only at late stages. Male STR/Ort mice develop knee OA spontaneously with known longitudinal trajectory, offering scope to identify OA predisposing factors. We exploit the lack of overt OA in female STR/Ort and i... Read More about Sexually dimorphic tibia shape is linked to natural osteoarthritis in STR/Ort mice.

Spatial relationship between bone formation and mechanical stimulus within cortical bone: Combining 3D fluorochrome mapping and poroelastic finite element modelling (2018)
Journal Article
Carriero, A., Pereira, A. F., Wilson, A. J., Castagno, S., Javaheri, B., Pitsillides, A. A., Marenzana, M., & Shefelbine, S. J. (2018). Spatial relationship between bone formation and mechanical stimulus within cortical bone: Combining 3D fluorochrome mapping and poroelastic finite element modelling. Bone Reports, 8, 72-80. https://doi.org/10.1016/j.bonr.2018.02.003

Bone is a dynamic tissue and adapts its architecture in response to biological and mechanical factors. Here we investigate how cortical bone formation is spatially controlled by the local mechanical environment in the murine tibia axial loading model... Read More about Spatial relationship between bone formation and mechanical stimulus within cortical bone: Combining 3D fluorochrome mapping and poroelastic finite element modelling.

FGF-2 promotes osteocyte differentiation through increased E11/podoplanin expression (2018)
Journal Article
Ikpegbu, E., Basta, L., Clements, D. N., Fleming, R., Vincent, T. L., Buttle, D. J., Pitsillides, A. A., Staines, K. A., & Farquharson, C. (2018). FGF-2 promotes osteocyte differentiation through increased E11/podoplanin expression. Journal of Cellular Physiology, 233(7), 5334-5347. https://doi.org/10.1002/jcp.26345

E11/podoplanin is critical in the early stages of osteoblast-to-osteocyte transitions (osteocytogenesis), however, the upstream events which regulate E11 expression are unknown. The aim of this study was to examine the effects of FGF-2 on E11-mediate... Read More about FGF-2 promotes osteocyte differentiation through increased E11/podoplanin expression.

Sost deficiency does not alter bone’s lacunar or vascular porosity in mice (2017)
Journal Article
Mosey, H., Núñez, J. A., Goring, A., Clarkin, C. E., Staines, K. A., Lee, P. D., Pitsillides, A. A., & Javaheri, B. (2017). Sost deficiency does not alter bone’s lacunar or vascular porosity in mice. Frontiers in Materials, 4(27), https://doi.org/10.3389/fmats.2017.00027

SCLEROSTIN (Sost) is expressed predominantly in osteocytes acting as a negative regulator of bone formation. In humans, mutations in the SOST gene lead to skeletal overgrowth and increased bone mineral density, suggesting that SCLEROSTIN is a key reg... Read More about Sost deficiency does not alter bone’s lacunar or vascular porosity in mice.

Stable sulforaphane protects against gait anomalies and modifies bone microarchitecture in the spontaneous STR/Ort model of osteoarthritis (2017)
Journal Article
Javaheri, B., Poulet, B., Aljazzar, A., De Souza, R., Piles, M., Hopkinson, M., Shervill, E., Pollard, A. S., Chan, B., Chang, Y. M., Orriss, I., Lee, P., & Pitsillides, A. A. (2017). Stable sulforaphane protects against gait anomalies and modifies bone microarchitecture in the spontaneous STR/Ort model of osteoarthritis. BONE, 103, 308-317. https://doi.org/10.1016/j.bone.2017.07.028

Osteoarthritis (OA), affecting joints and bone, causes physical gait disability with huge socio-economic burden; treatment remains palliative. Roles for antioxidants in protecting against such chronic disorders have been examined previously. Sulforap... Read More about Stable sulforaphane protects against gait anomalies and modifies bone microarchitecture in the spontaneous STR/Ort model of osteoarthritis.