scholarly journals Poly (C)-Binding Protein 1: A Novel Function Attributed to the Nervous System Microenvironment

2021 ◽  
Vol 11 (01) ◽  
pp. 48-66
Author(s):  
Bingbing Jia ◽  
Lirong Huo ◽  
Meng Ye ◽  
Chensi Liang
Keyword(s):  
Nervous System ◽  
Binding Protein

scholarly journals Central Leptin Regulates Total Ceramide Content and Sterol Regulatory Element Binding Protein-1C Proteolytic Maturation in Rat White Adipose Tissue

Endocrinology ◽  
2008 ◽  
Vol 150 (1) ◽  
pp. 169-178 ◽  
Author(s):  
Elena Bonzón-Kulichenko ◽  
Dominik Schwudke ◽  
Nilda Gallardo ◽  
Eduardo Moltó ◽  
Teresa Fernández-Agulló ◽  
...  
Keyword(s):  
Nervous System ◽  
Adipose Tissue ◽  
Insulin Sensitivity ◽  
White Adipose Tissue ◽  
Binding Protein ◽  
Regulatory Element ◽  
Mrna Levels ◽  
Element Binding Protein ◽  
Ceramide Content ◽  
Sterol Regulatory Element

Obesity and type 2 diabetes are associated with insulin and leptin resistance, and increased ceramide contents in target tissues. Because the adipose tissue has become a central focus in these diseases, and leptin-induced increases in insulin sensitivity may be related to effects of leptin on lipid metabolism, we investigated herein whether central leptin was able to regulate total ceramide levels and the expression of enzymes involved in ceramide metabolism in rat white adipose tissue (WAT). After 7 d central leptin treatment, the total content of ceramides was analyzed by quantitative shotgun lipidomics mass spectrometry. The effects of leptin on the expression of several enzymes of the sphingolipid metabolism, sterol regulatory element binding protein (SREBP)-1c, and insulin-induced gene 1 (INSIG-1) in this tissue were studied. Total ceramide levels were also determined after surgical WAT denervation. Central leptin infusion significantly decreased both total ceramide content and the long-chain fatty acid ceramide species in WAT. Concomitant with these results, leptin decreased the mRNA levels of enzymes involved in de novo ceramide synthesis (SPT-1, LASS2, LASS4) and ceramide production from sphingomyelin (SMPD-1/2). The mRNA levels of enzymes of ceramide degradation (Asah1/2) and utilization (sphingomyelin synthase, ceramide kinase, glycosyl-ceramide synthase, GM3 synthase) were also down-regulated. Ceramide-lowering effects of central leptin were prevented by local autonomic nervous system denervation of WAT. Finally, central leptin treatment markedly increased INSIG-1 mRNA expression and impaired SREBP-1c activation in epididymal WAT. These observations indicate that in vivo central leptin, acting through the autonomic nervous system, regulates total ceramide levels and SREBP-1c proteolytic maturation in WAT, probably contributing to improve the overall insulin sensitivity. Central leptin decreases total ceramide levels and prevents sterol regulatory element binding protein (SREBP-1C) proteolytic maturation in white adipose tissue, and probably, in this way, contributes to improve the overall insulin sensitivity.

Retinoid-binding protein distribution in the developing mammalian nervous system

Development ◽  
1990 ◽  
Vol 109 (1) ◽  
pp. 75-80 ◽  
Author(s):  
M. Maden ◽  
D.E. Ong ◽  
F. Chytil
Keyword(s):  
Nervous System ◽  
Retinoic Acid ◽  
Neural Crest ◽  
Motor Neurons ◽  
Neural Tube ◽  
Binding Protein ◽  
Sympathetic Ganglia ◽  
Retinol Binding Protein ◽  
Otic Vesicle ◽  
Protein Distribution

We have analysed the distribution of cellular retinol-binding protein (CRBP) and cellular retinoic acid-binding protein (CRABP) in the day 8.5-day 12 mouse and rat embryo. CRBP is localised in the heart, gut epithelium, notochord, otic vesicle, sympathetic ganglia, lamina terminalis of the brain, and, most strikingly, in a ventral stripe across the developing neural tube in the future motor neuron region. This immunoreactivity remains in motor neurons and, at later stages, motor axons are labelled in contrast to unlabelled sensory axons. CRABP is localised to the neural crest cells, which are particularly noticeable streaming into the branchial arches. At later stages, neural crest derivatives such as Schwann cells, cells in the gut wall and sympathetic ganglia are immunoreactive. An additional area of CRABP-positive cells are neuroblasts in the mantle layer of the neural tube, which subsequently appear to be the axons and cell bodies of the commissural system. Since retinol and retinoic acid are the endogenous ligands for these binding proteins, we propose that retinoids may play a role in the development and differentiation of the mammalian nervous system and may interact with certain homoeobox genes whose transcripts have also been localised within the nervous system.

Identification of inositol-1,3,4,5-tetrakisphosphate (IP4) binding protein (IP4BP1) in central nervous system

1994 ◽  
Vol 19 ◽  
pp. S36
Author(s):  
Mitsunori Fukuda ◽  
Jun Aruga ◽  
Michio Niinobe ◽  
Katsuhiko Mikoshiba
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Binding Protein

scholarly journals Region-specific alternative splicing in the nervous system: Implications for regulation by the RNA-binding protein NAPOR

RNA ◽  
2002 ◽  
Vol 8 (5) ◽  
pp. 671-685 ◽  
Author(s):  
WENQING ZHANG ◽  
HAIYING LIU ◽  
KYOUNGHA HAN ◽  
PAULA J. GRABOWSKI
Keyword(s):  
Nervous System ◽  
Alternative Splicing ◽  
Rna Binding ◽  
Binding Protein ◽  
Rna Binding Protein ◽  
Specific Alternative

Differential expression of the EF-hand calcium-binding protein calsensin in the central nervous system of hirudinid leeches

1996 ◽  
Vol 286 (3) ◽  
pp. 357-364 ◽  
Author(s):  
Mark Veldman ◽  
Yueqiao Huang ◽  
John Jellies ◽  
Kristen M. Johansen ◽  
Jørgen Johansen
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Differential Expression ◽  
Calcium Binding ◽  
Binding Protein ◽  
Calcium Binding Protein ◽  
Ef Hand ◽  
The Central Nervous System
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