Bone remodeling and macrophage differentiation in osteopetrosis (op) mutant mice defective in the production of macrophage colony-stimulating factor. 1998

H Takatsuka, and H Umezu, and G Hasegawa, and H Usuda, and Y Ebe, and M Naito, and L D Shultz
Second Department of Pathology, Niigata University School of Medicine, Japan.

Mice homozygous for the osteopetrosis (op) mutation are characterized by defective differentiation of osteoclasts, monocytes, and tissue macrophages due to a lack of functional macrophage colony-stimulating factor (M-CSF/CSF-1) activity. In young (4-6 week-old) op/op mice, the bone marrow cavities were filled with spongious bone. In aged (50-72 week-old) op/op mice, the bone marrow cavities were markedly reconstructed and marrow hematopoiesis was expanded. Numbers of osteoclasts and bone marrow macrophages in aged op/op mice were increased but most of the osteoclasts were mononuclear cells and showed poorly developed ruffled borders. Lysosomes of bone marrow macrophages were laden with abundant crystalloid materials in aged op/op mice and aged littermate mice. However, such macrophages were not observed in young op/op mice nor in young littermates. In contrast to the marked increase in numbers of osteoclasts and macrophages in the bone marrow, the number of Kupffer cells in the liver did not increase in aged op/op mice. Kupffer cells in aged op/op mice did not show ultrastructural maturation with aging and contained a few crystalloid structures. M-CSF administration to aged op/op mice induced numerical increases in Kupffer cells and lysosomes in Kupffer cells, disappearance of crystalloid structures in lysosomes of Kupffer cells, and the development of ruffled border in osteoclasts. These findings indicate that M-CSF-independent mechanisms for macrophage and osteoclast development in aged op/op mice are restricted to bone marrow. M-CSF plays important roles in the differentiation of macrophage and osteoclast and the production and function of lysosomes.

UI MeSH Term Description Entries
D007552 Isotonic Solutions Solutions having the same osmotic pressure as blood serum, or another solution with which they are compared. (From Grant & Hackh's Chemical Dictionary, 5th ed & Dorland, 28th ed) Solutions, Isotonic
D007728 Kupffer Cells Specialized phagocytic cells of the MONONUCLEAR PHAGOCYTE SYSTEM found on the luminal surface of the hepatic sinusoids. They filter bacteria and small foreign proteins out of the blood and dispose of worn out red blood cells. Kupffer Cell,Cell, Kupffer,Cells, Kupffer
D008264 Macrophages The relatively long-lived phagocytic cell of mammalian tissues that are derived from blood MONOCYTES. Main types are PERITONEAL MACROPHAGES; ALVEOLAR MACROPHAGES; HISTIOCYTES; KUPFFER CELLS of the liver; and OSTEOCLASTS. They may further differentiate within chronic inflammatory lesions to EPITHELIOID CELLS or may fuse to form FOREIGN BODY GIANT CELLS or LANGHANS GIANT CELLS. (from The Dictionary of Cell Biology, Lackie and Dow, 3rd ed.) Bone Marrow-Derived Macrophages,Monocyte-Derived Macrophages,Macrophage,Macrophages, Monocyte-Derived,Bone Marrow Derived Macrophages,Bone Marrow-Derived Macrophage,Macrophage, Bone Marrow-Derived,Macrophage, Monocyte-Derived,Macrophages, Bone Marrow-Derived,Macrophages, Monocyte Derived,Monocyte Derived Macrophages,Monocyte-Derived Macrophage
D008809 Mice, Inbred C3H An inbred strain of mouse that is used as a general purpose strain in a wide variety of RESEARCH areas including CANCER; INFECTIOUS DISEASES; sensorineural, and cardiovascular biology research. Mice, C3H,Mouse, C3H,Mouse, Inbred C3H,C3H Mice,C3H Mice, Inbred,C3H Mouse,C3H Mouse, Inbred,Inbred C3H Mice,Inbred C3H Mouse
D008810 Mice, Inbred C57BL One of the first INBRED MOUSE STRAINS to be sequenced. This strain is commonly used as genetic background for transgenic mouse models. Refractory to many tumors, this strain is also preferred model for studying role of genetic variations in development of diseases. Mice, C57BL,Mouse, C57BL,Mouse, Inbred C57BL,C57BL Mice,C57BL Mice, Inbred,C57BL Mouse,C57BL Mouse, Inbred,Inbred C57BL Mice,Inbred C57BL Mouse
D008817 Mice, Mutant Strains Mice bearing mutant genes which are phenotypically expressed in the animals. Mouse, Mutant Strain,Mutant Mouse Strain,Mutant Strain of Mouse,Mutant Strains of Mice,Mice Mutant Strain,Mice Mutant Strains,Mouse Mutant Strain,Mouse Mutant Strains,Mouse Strain, Mutant,Mouse Strains, Mutant,Mutant Mouse Strains,Mutant Strain Mouse,Mutant Strains Mice,Strain Mouse, Mutant,Strain, Mutant Mouse,Strains Mice, Mutant,Strains, Mutant Mouse
D010010 Osteoclasts A large multinuclear cell associated with the BONE RESORPTION. An odontoclast, also called cementoclast, is cytomorphologically the same as an osteoclast and is involved in CEMENTUM resorption. Odontoclasts,Cementoclast,Cementoclasts,Odontoclast,Osteoclast
D010022 Osteopetrosis Excessive formation of dense trabecular bone leading to pathological fractures; OSTEITIS; SPLENOMEGALY with infarct; ANEMIA; and extramedullary hemopoiesis (HEMATOPOIESIS, EXTRAMEDULLARY). Albers-Schoenberg Disease,Marble Bone Disease,Osteosclerosis Fragilis,Albers-Schonberg Disease,Albers-Schonberg Disease, Autosomal Dominant,Albers-Schönberg Disease,Autosomal Dominant Osteopetrosis Type 2,Congenital Osteopetrosis,Marble Bones, Autosomal Dominant,Osteopetrosis Autosomal Dominant Type 2,Osteopetrosis, Autosomal Dominant 2,Osteopetrosis, Autosomal Dominant, Type II,Osteosclerosis Fragilis Generalisata,Albers Schoenberg Disease,Albers Schonberg Disease,Albers Schonberg Disease, Autosomal Dominant,Albers Schönberg Disease,Disease, Albers-Schoenberg,Disease, Albers-Schonberg,Disease, Albers-Schönberg,Disease, Marble Bone,Osteopetroses,Osteosclerosis Fragilis Generalisatas
D010952 Plasma Substitutes Any liquid used to replace blood plasma, usually a saline solution, often with serum albumins, dextrans or other preparations. These substances do not enhance the oxygen- carrying capacity of blood, but merely replace the volume. They are also used to treat dehydration. Blood Expanders,Plasma Volume Expanders,Expanders, Blood,Expanders, Plasma Volume,Substitutes, Plasma,Volume Expanders, Plasma
D002454 Cell Differentiation Progressive restriction of the developmental potential and increasing specialization of function that leads to the formation of specialized cells, tissues, and organs. Differentiation, Cell,Cell Differentiations,Differentiations, Cell

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