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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-48065

Chip, S; Zelmer, A; Ogunshola, O O; Felderhoff-Mueser, U; Nitsch, C; Bührer, C; Wellmann, S (2011). The RNA-binding protein RBM3 is involved in hypothermia induced neuroprotection. Neurobiology of Disease, 43(2):388-396.

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Induced hypothermia is the only therapy with proven efficacy to reduce brain damage after perinatal asphyxia. While hypothermia down-regulates global protein synthesis and cell metabolism, low temperature induces a small subset of proteins that includes the RNA-binding protein RBM3 (RNA-binding motif protein 3), which has recently been implicated in cell survival. Here, immunohistochemistry of the developing postnatal murine brain revealed a spatio-temporal neuronal RBM3 expression pattern very similar to that of doublecortin, a marker of neuronal precursor cells. Mild hypothermia (32°C) profoundly promoted RBM3 expression and rescued neuronal cells from forced apoptosis as studied in primary neurons, PC12 cells, and cortical organotypic slice cultures. Blocking RBM3 expression in neuronal cells by specific siRNAs significantly diminished the neuroprotective effect of hypothermia while vector-driven RBM3 over-expression reduced cleavage of PARP, prevented internucleosomal DNA fragmentation, and LDH release also in the absence of hypothermia. Together, neuronal RBM3 up-regulation in response to hypothermia apparently accounts for a substantial proportion of hypothermia-induced neuroprotection.


24 citations in Web of Science®
24 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Neonatology
04 Faculty of Medicine > Center for Integrative Human Physiology
05 Vetsuisse Faculty > Institute of Veterinary Physiology
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Deposited On:13 May 2011 14:51
Last Modified:05 Apr 2016 14:55
Publisher DOI:10.1016/j.nbd.2011.04.010
PubMed ID:21527344

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