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Moving beyond the limits of detection: the past, the present, and the future of diagnostic imaging in canine osteoarthritis (2022)
Journal Article
Jones, G., Pitsillidies, A., & Meeson, R. (2022). Moving beyond the limits of detection: the past, the present, and the future of diagnostic imaging in canine osteoarthritis. Frontiers in Veterinary Science, https://doi.org/10.3389/fvets.2022.789898

Osteoarthritis (OA) is the most common orthopaedic condition in dogs, characterised as chronic, painful end-point of a synovial joint with limited therapeutic options other than palliative pain control or surgical salvage. Since the 1970s, radiograph... Read More about Moving beyond the limits of detection: the past, the present, and the future of diagnostic imaging in canine osteoarthritis.

An examination of two different approaches for the study of femoral neck fracture: towards a more relevant rodent model (2021)
Journal Article
Monzem, S., Gohin, S., Yagüe Ballester, R., Lopes de Souza, R., Meeson, R., & Anthony Pitsillides, A. (2021). An examination of two different approaches for the study of femoral neck fracture: towards a more relevant rodent model. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, https://doi.org/10.1177/09544119211053057

Femoral neck fractures are a massive personal and health programme burden. Methods to study femoral neck strength, across its combined trabecular and cortical components are therefore essential. Rodent ovariectomy-induced osteoporosis models are comm... Read More about An examination of two different approaches for the study of femoral neck fracture: towards a more relevant rodent model.

CD146 Delineates an Interfascicular Cell Sub-Population in Tendon That Is Recruited during Injury through Its Ligand Laminin-?4 (2021)
Journal Article
Marr, N., Meeson, R., Kelly, E., Fang, Y., Peffers, M., Pitsillides, A., …Thorpe, C. (2021). CD146 Delineates an Interfascicular Cell Sub-Population in Tendon That Is Recruited during Injury through Its Ligand Laminin-α4. International Journal of Molecular Sciences, https://doi.org/10.3390/ijms22189729

The interfascicular matrix (IFM) binds tendon fascicles and contains a population of morphologically distinct cells; however the role of IFM-localised cell populations in tendon repair remains to be determined. The basement membrane protein laminin-?... Read More about CD146 Delineates an Interfascicular Cell Sub-Population in Tendon That Is Recruited during Injury through Its Ligand Laminin-?4.

Sciatic neurectomy-related cortical bone loss exhibits delayed onset yet stabilises more rapidly than trabecular bone (2021)
Journal Article
Monzem, S., Javaheri, B., de Souza, R. L., & Pitsillides, A. A. (2021). Sciatic neurectomy-related cortical bone loss exhibits delayed onset yet stabilises more rapidly than trabecular bone. Bone Reports, 101116. https://doi.org/10.1016/j.bonr.2021.101116

Disuse osteoporosis occurs after extended periods of bed rest or nerve damage leading to increased risk of fracture. It remains to be established, however, whether the trajectory of bone loss is equivalent in bone's cortical and trabecular compartmen... Read More about Sciatic neurectomy-related cortical bone loss exhibits delayed onset yet stabilises more rapidly than trabecular bone.

A new straightforward method for semi-automated segmentation of trabecular bone from cortical bone in diverse and challenging morphologies (2021)
Journal Article
Pitsillides, A., Herbst, E., Felder, A., Evans, L., Anjami, S., & Javaheri, B. (2021). A new straightforward method for semi-automated segmentation of trabecular bone from cortical bone in diverse and challenging morphologies. Royal Society Open Science, https://doi.org/10.1098/rsos.210408

Many physiological, biomechanical, evolutionary and clinical studies that explore skeletal structure and function require successful separation of trabecular from cortical compartments of a bone that has been imaged by X-ray micro-computed tomography... Read More about A new straightforward method for semi-automated segmentation of trabecular bone from cortical bone in diverse and challenging morphologies.

Systematic analysis reveals that colony housing aligns gait profiles and strengthens link between 1 histological and micro-CT bone markers in rat models of osteoarthritis 2 Short running title: Colony housing strengthens osteoarthritis research (2021)
Journal Article
Chang, Y., Menges, S., Westhof, A., Kleinschmidt-Doerr, K., Brenneis, C., Pitsillides, A. A., & Chang, Y. (in press). Systematic analysis reveals that colony housing aligns gait profiles and strengthens link between 1 histological and micro-CT bone markers in rat models of osteoarthritis 2 Short running title: Colony housing strengthens osteoarthritis research. FASEB Journal, -. https://doi.org/10.1096/fj.202002009R

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., …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., …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., …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 ? 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., …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., …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., …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., …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.

Spontaneous dog osteoarthritis — a One Medicine vision (2019)
Journal Article
Meeson, R. L., Todhunter, R. J., Blunn, G., Nuki, G., & Pitsillides, A. A. (2019). Spontaneous dog osteoarthritis — a One Medicine vision. Nature Reviews Rheumatology, 15(5), 273-287. https://doi.org/10.1038/s41584-019-0202-1

Osteoarthritis (OA) is a global disease that, despite extensive research, has limited treatment options. Pet dogs share both an environment and lifestyle attributes with their owners, and a growing awareness is developing in the public and among rese... Read More about Spontaneous dog osteoarthritis — a One Medicine vision.

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/?-catenin signalling. Scl... Read More about Sost haploinsufficiency provokes peracute lethal cardiac tamponade without rescuing the osteopenia in a mouse model of excess glucocorticoids.