
La reabsorción de tejidos mineralizados como el hueso se logra mediante un tipo de célula único: el osteoclasto. Esta célula multinucleada tiene la capacidad de disolver el mineral bajando el pH. Posteriormente, la liberación de ciertas enzimas proteolíticas, en particular la catepsina K, da como resultado la digestión de la matriz orgánica que consiste principalmente en colágeno. En esta breve revisión describiremos las características únicas del osteoclasto que hacen posible que la célula reabsorba los tejidos mineralizados.
La résorption des tissus minéralisés comme l'os est accomplie par un type cellulaire unique : l'ostéoclaste. Cette cellule multinucléée a la capacité de dissoudre le minéral en abaissant le pH. Par la suite, la libération de certaines enzymes protéolytiques, en particulier la cathepsine K, entraîne la digestion de la matrice organique constituée principalement de collagène. Dans cette brève revue, nous décrirons les caractéristiques uniques de l'ostéoclaste permettant à la cellule de résorber les tissus minéralisés.
Resorption of mineralized tissues like bone is accomplished by a unique cell type: the osteoclast. This multinucleated cell has the capacity to dissolve the mineral by lowering the pH. Subsequently, the release of certain proteolytic enzymes, in particular cathepsin K, results in the digestion of the organic matrix mainly consisting of collagen. In this short review we will describe the unique features of the osteoclast making it possible for the cell to resorb mineralized tissues.
يتم ارتشاف الأنسجة المعدنية مثل العظام من خلال نوع خلية فريد: ناقضة العظم. هذه الخلية متعددة النوى لديها القدرة على إذابة المعدن عن طريق خفض درجة الحموضة. في وقت لاحق، يؤدي إطلاق بعض الإنزيمات البروتينية، ولا سيما الكاتيبسين K، إلى هضم المصفوفة العضوية التي تتكون أساسًا من الكولاجين. في هذه المراجعة القصيرة، سنصف السمات الفريدة لناقضة العظم التي تجعل من الممكن للخلية أن تمتص الأنسجة المعدنية.
Biomineralization, Cell biology, Cathepsin K, Osteoclasts, Bone resorption, Demineralization, Protein degradation, Biochemistry, Cathepsin, Endocrinology, Rheumatology, In vitro, Role of Osteopontin in Biomineralization and Inflammation, Biochemistry, Genetics and Molecular Biology, Health Sciences, Bisphosphonates in Cancer Treatment and Bone Health, Pathology, Humans, Multinucleate, Bone Resorption, Molecular Biology, Biology, Proteolytic enzymes, Bone Formation, Life Sciences, Cell Differentiation, Osteoclast heterogeneity, Osteoblast Differentiation, Resorption, Molecular Mechanisms of Osteoclast Differentiation and Bone Remodeling, Chemistry, Oncology, Enzyme, Osteoclast Differentiation, Cell type, Dentin, Medicine, Osteoclast, Cell, Mineralized tissues
Biomineralization, Cell biology, Cathepsin K, Osteoclasts, Bone resorption, Demineralization, Protein degradation, Biochemistry, Cathepsin, Endocrinology, Rheumatology, In vitro, Role of Osteopontin in Biomineralization and Inflammation, Biochemistry, Genetics and Molecular Biology, Health Sciences, Bisphosphonates in Cancer Treatment and Bone Health, Pathology, Humans, Multinucleate, Bone Resorption, Molecular Biology, Biology, Proteolytic enzymes, Bone Formation, Life Sciences, Cell Differentiation, Osteoclast heterogeneity, Osteoblast Differentiation, Resorption, Molecular Mechanisms of Osteoclast Differentiation and Bone Remodeling, Chemistry, Oncology, Enzyme, Osteoclast Differentiation, Cell type, Dentin, Medicine, Osteoclast, Cell, Mineralized tissues
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