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Abstract
Cancer becomes the leading cause of deaths worldwide, including breast cancer, prostate cancer and lung cancer that preferentially metastasize to bone and bone marrow. Bisphosphonates (BPs) have been used successfully for many years to reduce the skeletal complications related with the benign and malignant bone diseases that are characterized by enhanced osteoclastic bone resorption. Nitrogen-containing bisphosphonates (N-BPs) have also been demonstrated to exhibit direct anti-tumour effects. BPs binds avidly to the bone matrix, and released from matrix during bone resorption process, BPs are internalized by the osteoclasts where they interfere with biochemical pathways and induce osteoclast apoptosis. BPs also antagonizes the production of osteoclast and promotes the osteoblasts proliferation. Currently, Zoledronic acid is widely used as one of the BP having high bone specificity and potential to inhibit the osteoclast-mediated bone resorption. In addition to inhibition of cell multiplication and initiation of apoptosis in cultured cancer cells, they also interfere with adhesion of cancer cells to the bone matrix and inhibit cell migration and invasion. Pathophysiology and current target therapies like conjugate of BPs with liposomes, nanoparticle used for the treatment of bone cancer is reviewed in this article along with the use of different BPs.
Acknowledgements
We are grateful to Shri Parveen Garg (Chairman), I.S.F. College of Pharmacy, Ferozepur Road, Moga 142001, INDIA for their necessary support and motivation.
Declaration of interest
The authors confirm that this article content has no conflicts of interest.