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001-es BibID:	BIBFORM057878
Első szerző:	Szaniszló Péter
Cím:	Effects of Colostrinin on gene expression-transcriptomal network analysis / Peter Szaniszlo, Peter German, Gyorgy Hajas, David N. Saenz, Mitchell W. Woodberry, Marian L. Kruzel, Istvan Boldogh
Dátum:	2009
ISSN:	1567-5769
Megjegyzések:	Colostrinin (CLN) is a uniform mixture of low-molecular weight proline-rich polypeptides isolated from the mother's first milk, colostrum. Exposure of cells to CLN decreases intracellular levels of reactive oxygen species by regulating glutathione metabolism and modulating activities of antioxidant enzymes and mitochondrial function. It also inhibits beta amyloid-induced apoptosis and induces neurite outgrowth of pheochromocytoma cells. Administration of CLN to Alzheimer's disease patients has resulted in a stabilizing effect on cognitive function. We analyzed CLN-induced gene expression changes using high-density oligonucleotide arrays and transcriptomal network analysis. We found that CLN elicited highly complex and multiphasic changes in the gene expression profile of treated cells. CLN treatment affected a total of 58 molecular networks, 27 of which contained at least 10 differentially expressed genes. Here we present CLN-modulated gene networks as potential underlying molecular mechanisms leading to the reported effects of CLN on cellular oxidative state, chemokine and cytokine production, and cell differentiation, as well as on pathological processes like allergy, asthma, Alzheimer's, and other neurological diseases. Based on our results, we also predict possible modulatory effects of CLN on adipocytokine gene networks that play a crucial role in the pathobiology of diabetes, cardiovascular disorders, obesity, and inflammation. Taken together, CLN-altered gene expression networks presented here provide the molecular basis for previously described biological phenomena and predict potential fields of application for CLN in the prevention and treatment of diseases.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:	International Immunopharmacology. - 9 : 2 (2009), p. 181-193. -
További szerzők:	Germán Péter (gyermekgyógyász) Hajas György (1970-) (biológus) Saenz, David N. Woodberry, Mitchell Kruzel, Marian L. Boldogh István
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM057879
Első szerző:	Szaniszló Péter
Cím:	New insights into clinical trial for Colostrinin in Alzheimer's disease / P. Szaniszlo, P. German, G. Hajas, D. N. Saenz, M. Kruzel, I. Boldogh
Dátum:	2009
ISSN:	1279-7707
Megjegyzések:	BACKGROUND: The pathomechanism of Alzheimer's disease (AD) is multifactorial although the most popular hypotheses are centered on the effects of the misfolded, aggregated protein, amyloid beta (Abeta) and on Tau hyperphosphorylation.OBJECTIVES: Double blinded clinical trials were planned to demonstrate the effect of Colostrinin (CLN) on instrumental daily activities of AD patients. The potential molecular mechanisms by which CLN mediates its effects were investigated by gene expression profiling.METHODS: RNAs isolated from CLN-treated cells were analyzed by high-density oligonucleotide arrays. Network and pathway analyses were performed using the Ingenuity Pathway Analysis software.RESULTS: The Full Sample Analysis at week 15 showed a stabilizing effect of CLN on cognitive function in ADAS-cog (p = 0.02) and on daily function in IADL (p = 0.02). The overall patient response was also in favor of CLN (p = 0.03). Patients graded as mild on entry also showed a superior response of ADAS-cog compared to more advanced cases (p = 0.01). Data derived from microarray network analysis show that CLN elicits highly complex and multiphasic changes in the cells' transcriptome. Importantly, transcriptomal analysis showed that CLN alters gene expression of molecular networks implicated in Abeta precursor protein synthesis, Tau phosphorylation and increased levels of enzymes that proteolitically eliminate Abeta. In addition, CLN enhanced the defense against oxidative stress and decreased expression of inflammatory chemokines and cytokines, thereby attenuating inflammatory processes that precede Alzheimer's and other neurological diseases.CONCLUSION: Together these data suggest that CLN has promising potential for clinical use in prevention and therapy of Alzheimer's and other age-associated central nervous system diseases.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:	Journal of Nutrition Health & Aging. - 13 : 3 (2009), p. 235-241. -
További szerzők:	Germán Péter (gyermekgyógyász) Hajas György (1970-) (biológus) Saenz, David N. Kruzel, Marian L. Boldogh István
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon: