نتایج جستجو برای: gap junction

تعداد نتایج: 185750  

2014
Takeshi Okinami Masaaki Imamura Nobuyuki Nishikawa Hiromitsu Negoro Yoshio Sugino Koji Yoshimura Akihiro Kanematsu Hikaru Hashitani Osamu Ogawa

Lower urinary tract symptoms (LUTS) include storage, voiding and post-micturition symptoms, featuring many urological diseases. Storage symptoms are the most frequent among these and associated with overactive bladder and non-bacterial bladder inflammation such as interstitial cystitis/bladder pain syndrome (IC/BPS). Gap junction, a key regulator of hyperactive conditions in the bladder, has be...

Journal: :Biochimica et biophysica acta 2004
Gary S Goldberg Virginijus Valiunas Peter R Brink

Gap junctions mediate the transfer of small cytoplasmic molecules between adjacent cells. A family of gap junction proteins exist that form channels with unique properties, and differ in their ability to mediate the transfer of specific molecules. Mutations in a number of individual gap junction proteins, called connexins, cause specific human diseases. Therefore, it is important to understand ...

Journal: :Journal of cell science 1990
E Harfst N J Severs C R Green

It is widely accepted that there is a family of gap junction connexon proteins, their distribution appearing to vary with tissue type and species. In cardiac tissues the major junctional channel component identified is a 43K (K = 10(3) Mr) polypeptide. Using a gap junction isolation protocol in which low temperatures are maintained, and which is detergent-free, we have identified a second gap j...

2012
Kyle G. Horn Heraldo Memelli Irene C. Solomon

Most models of central pattern generators (CPGs) involve two distinct nuclei mutually inhibiting one another via synapses. Here, we present a single-nucleus model of biologically realistic Hodgkin-Huxley neurons with random gap junction coupling. Despite no explicit division of neurons into two groups, we observe a spontaneous division of neurons into two distinct firing groups. In addition, we...

Journal: :The Journal of Cell Biology 1994
P D Lampe

The effect of 12-O-tetradeconylphorbol-13-acetate (TPA) on gap junction assembly between Novikoff hepatoma cells was examined. Cells were dissociated with EDTA to single cells and then reaggregated to form new junctions. When TPA (25 nM) was added to the cells at the onset of the 60-min reaggregation, dye transfer was detected at only 0.6% of the cell-cell interfaces compared to 72% for the unt...

2009
Hildegard Lechner

Diese Dissertation ist auf dem Hochschulschriftenserver der ULB Bonn unter junction communication and paracrine signaling pathways during organogenesis in Drosophila. (2006). DE-cadherin, a core component of the adherens junction complex modifies subcellular localization of the Drosophila gap junction protein innexin2. Intercellular communication: the Drosophila innexin multiprotein family of g...

Journal: :The Journal of endocrinology 2002
K T Davis N Prentice V L Gay S A Murray

Mouse and monkey adrenal glands were used to study the relationships between gap junction protein expression, intercellular communication and adrenal zonation. Dye communication patterns were determined by incubating freshly excised and hemisected adrenal glands in Lucifer yellow, a gap junction permeable fluorescent dye. Immunohistochemical techniques were used to localize adrenal gap junction...

Bahar Kaviani, Baharak Khoshkholgh-Sima, Maryam Olad, Marzieh Bagheri, Mohammad Sayyah, Reza Mahdian, Samira Choopani,

Background: Hippocampal damages, which are accompanied by inflammation, are among the main causes of epilepsy acquisition. We previously reported that chronic intracerebroventricular (i.c.v.) injection of lipopolysaccharide (LPS) modulates epileptogenesis in rats. There is a network of gap junction channels in the hippocampus that contribute to epileptogenesis. Gap junction channels are formed ...

Journal: :Development 2007
Néstor J Oviedo Michael Levin

The largely unknown mechanisms that regulate adult stem cells probably involve signals from neighboring differentiated cells. Gap junction channels providing direct cell-cell communication via small molecules are a crucial component of morphogenesis and normal physiology. However, no specific gap junction protein has yet been functionally linked to adult/somatic stem cell behavior in vivo or to...

2016
Jun Li Changming Li Dandan Liang Fei Lv Tianyou Yuan Erlinda The Xiue Ma Yahan Wu Lixiao Zhen Duanyang Xie Shiyi Wang Yuan Liu Jian Huang Jingyi Shi Yi Liu Dan Shi Liang Xu Li Lin Luying Peng Jianmin Cui Weidong Zhu Yi-Han Chen

Low-density lipoprotein receptor-related protein 6 (LRP6) is a Wnt co-receptor in the canonical Wnt/β-catenin signalling. Here, we report the scaffold function of LRP6 in gap junction formation of cardiomyocytes. Cardiac LRP6 is spatially restricted to intercalated discs and binds to gap junction protein connexin 43 (Cx43). A deficiency in LRP6 disrupts Cx43 gap junction formation and thereby i...

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