Early 2017 I got funding to start assembling an independent research group working on regulation of bone remodeling and development of in vitro model to replicate the bone remodeling cycle. I did my PhD at University of Turku in Finland. Then I moved to Department Neurosciences at Karolinska institutet for a postdoc project on regulation synaptic vesicle membrane trafficking. After that I joined Division of Pathology in Department of Laboratory Medicine for another postdoc to study differentiation of osteoclasts.
We will develop an in vitro model recreating the entire bone remodeling cycle to examine in detail processes regulating bone remodeling and bone generation. My group’s long-term aim is to screen better small molecule drugs for osteoporosis and to produce bone for regenerative medicine. Bone remodeling is a constantly undergoing process where bone resorbing osteoclasts (OC), osteocytes (OY) inhabiting channels inside bone and bone mineralizing osteoblasts (OB) work together in order to heal damage and remake the skeleton, respond to mechanical stimulus and adapt bone structure to environmental factors and maintain Ca2+ and phosphate homeostasis. These cells receive regulatory signals through hormonal signaling network and transmit information to each other directly with cell-cell contacts, with soluble ligands as well as through surrounding extracellular matrix. I have developed an in vitro model of bone composed of sedimented bone nanoparticles facilitating easy high-resolution imaging to extract molecular detail in a relevant biological context. The primary aims of the proposed project are to:
1. further develop this model to include OYs, OCs, and OBs, and functionalization (e.g. proteins NO and pH-probes).
2. Elucidate and understand the coupling mechanisms in the intertwined signaling between OCs, OBs and OYs in mineralization. While OYs stimulate differentiation of OCs and OBs they also inhibit it by osteoprotegerin and sclerostin, respectively. In our model we can examine the impact of the signals in a sub-cellular resolution enabling us to establish precise molecular mechanisms.
3. Learn how to modulate balance between mineralization and resorption in an in vitro model replicating the bone-remodeling unit and to screen for drug candidates affecting the balance of the bone remodeling cycle.
Laia Mira Pascual (PhD-student shared with G. Andersson and P. Lång)
Students wishing to do their M.Sc. thesis work in the group are welcome to contact firstname.lastname@example.org
Academic honors, awards and prizes
Jane and Aatos Erkko foundation
Loo and Hans Osterman foundation
Maud Kuistila memorial foundation
An Endocytic Scaffolding Protein together with Synapsin Regulates Synaptic Vesicle Clustering in the Drosophila Neuromuscular Junction
The Journal of neuroscience : the official journal of the Society for Neuroscience 2015;35(44):14756-70
Nanometric features of myosin filaments extracted from a single muscle fiber to uncover the mechanisms underlying organized motility
Archives of biochemistry and biophysics 2015;583():1-8
Preparation of reactive fibre interfaces using multifunctional cellulose derivatives
CARBOHYDRATE POLYMERS 2015;:261-73
Axial Super-resolution by Mirror-reflected Stimulated Emission Depletion Microscopy
OPTICAL REVIEW 2014;21(3):389-394
Kinetics of bioconjugate nanoparticle label binding in a sandwich-type immunoassay
ANALYTICAL AND BIOANALYTICAL CHEMISTRY 2014;406(2):493-503
p38 delta mitogen-activated protein kinase regulates the expression of tight junction protein ZO-1 in differentiating human epidermal keratinocytes
ARCHIVES OF DERMATOLOGICAL RESEARCH 2014;306(2):131-41
Photon upconversion sensitized nanoprobes for sensing and imaging of pH
Semiconducting Polymer Encapsulated Mesoporous Silica Particles with Conjugated Europium Complexes: Toward Enhanced Luminescence under Aqueous Conditions
ACS APPLIED MATERIALS & INTERFACES 2014;6(21):19064-74
NATURAL PRODUCT DRUG DISCOVERY FOR CHLAMYDIA PNEUMONIAE
EUROPEAN JOURNAL OF PHARMACEUTICAL SCIENCES 2011;:17-18
Impact of surface defects and denaturation of capture surface proteins on nonspecific binding in immunoassays using antibody-coated polystyrene nanoparticle labels
JOURNAL OF IMMUNOLOGICAL METHODS 2009;347(1-2):24-30
Study on nonspecificity of an immuoassay using Eu-doped polystyrene nanoparticle labels
JOURNAL OF IMMUNOLOGICAL METHODS 2009;345(1-2):80-9