Trombospondina na hipoplasia induzida por desnutrição protéica

Autores

  • Cidônia de Lourdes VITURI Departamento de Análises Clínicas, Centro de Ciências da Saúde, Universidade Federal de Santa Catarina.
  • Márcio ALVAREZ-SILVA Departamento de Biologia Celular, Embriologia e Genética, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina
  • Andréa Gonçalves TRENTIN Departamento de Nutrição, Centro de Ciências da Saúde, Universidade Federal de Santa Catarina.
  • Vera Lúcia Cardoso Garcia TRAMONTE Departamento de Nutrição, Centro de Ciências da Saúde, Universidade Federal de Santa Catarina.
  • Primavera BORELLI Departamento de Análises Clínicas e Toxicológicas, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo.

Palavras-chave:

medula óssea, matriz extracelular, hipoplasia, desnutrição protéica, trombospondina

Resumo

Objective
The objective of the present study was to measure the concentration of bone marrow extracellular matrix thrombospondin in mice, following hypoplasia induced by protein malnutrition.
Methods
Two-month-old male Swiss mice were submitted to protein malnutrition by way of a low-protein diet containing 4.0% casein until they lost 20.0% of their original body weight, while the control group mice were fed 14.0% casein for 15 days. The bone marrows of the animals were aspirated and transferred to phosphate-buffered saline tubes for extraction. The extracellular matrix protein was analyzed by 7.5% SDS-PAGE and thrombospondin by Enhanced Chemiluminescence Light Western blotting.
Results
The amount of thrombospondin was 30% higher in the undernourished samples when compared to the control samples.
Conclusion
This study suggests that the hypoplasia induced by protein malnutrition probably alters the functioning of the bone marrow microenvironment resulting in a higher thrombospondin concentration.

Referências

Bornstein P. Thrombospondins: structure and regulation of expression. FASEB J. 1992; 6(14):3290-9

Klein G. The extracellular matrix of the hematopoietic microenvironment. Experientia. 1995; 51(9-10):914-26.

Borelli P, Mariano M, Borojevic R. Protein malnutrition: effect on myeloid cell production and mobilization into inflammatory reactions in mice. Nutr Res. 1995; 15(10):1477-85.

Krause JR. The bone marrow in nutritional deficiencies. Hematol Oncol Clin North Am. 1988; 2(4):557-67.

Yong NS, Alter BP. Drugs and chemicals. In: Young NS, Alter BP. Aplastic acquired and inherited. Philadelphia: WB Saunders; 1994. p.24-31.

Vituri CL, Alvarez-Silva M, Trentin AG, Borelli P. Alterations in proteins of bone marrow extracellular matrix in undernourished mice. Braz J Med Biol Res. 2000; 33(8):889-95

Reeves PG, Nielsen FH, Fahey GC. AIN-93 purified diets for laboratory rodents: final report of the American Institute of Nutrition Ad Doc committee on the reformulation of the AIN-76A rodent diet. J Nutr. 1993; 123(5):1939-51.

Bradford MM. A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding. Anal Biochem. 1976; 72(1-2):248-54.

Vituri CL, Alvarez-Silva M, Borelli P. Desnutrição protéica altera o microambiente hematopoiético. Rev Bras Cienc Farm.1999; 35(1):8.

Silverstein RL. The face of TSP revealed: an extracellular signaling domain is exposed. J Cell Biol. 2002; 159(2):203-6.

Yurchenco PD, O’Rear JJ. Basal lamina assembly. Curr Opin Cell Biol. 1994; 6(5):674-81.

Sottile J, Hocking DC. Fibronectin polymerization regulates the composition and stability of extracellular matrix fibrils and cell-matrix adhesions. Mol Biol Cell. 2002; 13(10):3546-59.

. Streuli C. Extracellular matrix remodeling and cellular differentiation. Curr Opin Cell Biol. 1999; 11(5):634-40.

Grzesik WJ, Frazier CR, Shapiro JR, Sponseller PD, Robey PG, Fedarko NS. Age-related changes in human bone proteoglycan structure. Impact of osteogenesis imperfecta. J Biol Chem. 2002; 277(46):43638-47.

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Publicado

05-10-2023

Como Citar

VITURI, C. de L. ., ALVAREZ-SILVA, M. ., TRENTIN, A. G. ., TRAMONTE, V. L. C. G. ., & BORELLI, P. . (2023). Trombospondina na hipoplasia induzida por desnutrição protéica. Revista De Nutrição, 18(6). Recuperado de https://periodicos.puc-campinas.edu.br/nutricao/article/view/9989

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ARTIGOS ORIGINAIS