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[Pathophysiology of bone metastases]. 2003

Daniel Chappard, and Erick Legrand, and Philippe Massin, and Michel Félix Basle, and Maurice Audran
INSERM EMI 0335-LHEA, Faculté de Médecine, 49045 Angers, France. daniel.chappard@univ-angers.fr

The aim of this review is to detail the pathophysiologic mechanisms occurring during bone metastases. osteolytic and osteosclerotic metastases are observed after migration of malignant cells coming from a primitive tumour which can localize and grow inside the hematopoietic bone marrow. Bone lesions observed during hematologic malignancies (lymphomas and myeloma) are not detailed here. The various cytokine networks that are occurring in bone metastases are detailed: in both cases there is a "vicious circle" between the the tumoral cells and bone cells responsible for the physiological remodeling of bone. The knowledge of these interferences permits to understand the use of anti-osteoclastic treatments (bisphosphonates) in osteolytic as well as osteosclerotic metastases.

UI MeSH Term Description Entries
D008207 Lymphatic Metastasis Transfer of a neoplasm from its primary site to lymph nodes or to distant parts of the body by way of the lymphatic system. Lymph Node Metastasis,Lymph Node Metastases,Lymphatic Metastases,Metastasis, Lymph Node
D010014 Osteolysis Dissolution of bone that particularly involves the removal or loss of calcium. Osteolyses
D010026 Osteosclerosis An abnormal hardening or increased density of bone tissue. Osteoscleroses
D001859 Bone Neoplasms Tumors or cancer located in bone tissue or specific BONES. Bone Cancer,Cancer of Bone,Cancer of the Bone,Neoplasms, Bone,Bone Neoplasm,Neoplasm, Bone
D004164 Diphosphonates Organic compounds which contain P-C-P bonds, where P stands for phosphonates or phosphonic acids. These compounds affect calcium metabolism. They inhibit ectopic calcification and slow down bone resorption and bone turnover. Technetium complexes of diphosphonates have been used successfully as bone scanning agents. Bisphosphonate,Bisphosphonates
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D016723 Bone Remodeling The continuous turnover of BONE MATRIX and mineral that involves first an increase in BONE RESORPTION (osteoclastic activity) and later, reactive BONE FORMATION (osteoblastic activity). The process of bone remodeling takes place in the adult skeleton at discrete foci. The process ensures the mechanical integrity of the skeleton throughout life and plays an important role in calcium HOMEOSTASIS. An imbalance in the regulation of bone remodeling's two contrasting events, bone resorption and bone formation, results in many of the metabolic bone diseases, such as OSTEOPOROSIS. Bone Turnover,Bone Turnovers,Remodeling, Bone,Turnover, Bone,Turnovers, Bone

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