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Structure, Expression, and Function of ICAM-5.

ABSTRACT: Cell adhesion is of utmost importance in normal development and cellular functions. ICAM-5 (intercellular adhesion molecule-5, telencephalin, TLN) is a member of the ICAM family of adhesion proteins. As a novel cell adhesion molecule, ICAM-5 shares many structural similarities with the other members of IgSF, especially the ICAM subgroup; however, ICAM-5 has several unique properties compared to the other ICAMs. With its nine extracellular Ig domains, ICAM-5 is the largest member of ICAM subgroup identified so far. Therefore, it is much more complex than the other ICAMs. The expression of ICAM-5 is confined to the telencephalic neurons of the central nervous system whereas all the other ICAM members are expressed mostly by cells in the immune and blood systems. The developmental appearance of ICAM-5 parallels the time of dendritic elongation and branching, and synapse formation in the telencephalon. As a somatodendrite-specific adhesion molecule, ICAM-5 not only participates in immune-nervous system interactions, it could also participate in neuronal activity, Dendrites' targeting signals, and cognition. It would not be surprising if future investigations reveal more binding partners and other related functions of ICAM-5.

SUBMITTER: Yang H

PROVIDER: S-EPMC3270525 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature

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Structure, Expression, and Function of ICAM-5.

Yang Heping H

Comparative and functional genomics 20120123

Cell adhesion is of utmost importance in normal development and cellular functions. ICAM-5 (intercellular adhesion molecule-5, telencephalin, TLN) is a member of the ICAM family of adhesion proteins. As a novel cell adhesion molecule, ICAM-5 shares many structural similarities with the other members of IgSF, especially the ICAM subgroup; however, ICAM-5 has several unique properties compared to the other ICAMs. With its nine extracellular Ig domains, ICAM-5 is the largest member of ICAM subgroup ...[more]

PMID: 22312318

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Project description:The objective of the present study was to investigate the effects of remifentanil on hemodynamics, liver function, and expression of intercellular adhesion molecule-1 (ICAM-1) in patients with liver cancer undergoing surgery. A total of 60 patients who underwent liver cancer resection in The First People's Hospital of Xiangyang, Hubei University of Medicine from January 2014 to January 2016 were selected, including 33 males and 27 females, with an average age of 54.12±4.77 years. Patients were randomly divided into the control group and experimental group (n=30 each). The control group and experimental group were anesthetized with propofol/isoflurane and remifentanil/propofol, respectively. In addition to general parameters, the following parameters were analyzed: mean systolic blood pressure and mean diastolic blood pressure were obtained before treatment, during anesthesia induction and intubation, during blockade of traction reflexes in surgery, and before extubation at the end of surgery. The recovery time from anesthesia withdrawal to spontaneous breathing, time of eye opening, time of extubation, and level of consciousness were recorded. Liver expression of ICAM-1 was measured with SABC staining, and the expression of aspartate aminotransferase (AST), alanine aminotransferase (ALT), and total bilirubin (TBIL) were recorded on the first, third, fifth, and seventh day after surgery. According to hemodynamic parameters, patients in the experimental group experienced a more stable condition than patients in the control group (P<0.05). In addition, the recovery time of the experimental group was shorter than that of the control group (P<0.05). Markers of liver function (AST, ALT and TBIL) of the two groups after surgery were higher than those before surgery, and the increases of the experimental group were significantly lower than those of the control group. ICAM-1 expression in the experimental group was significantly lower than in the control group (P<0.05). In conclusion, anesthesia with remifentanil better maintained the stability of hemodynamics, played a protective role against hepatic ischemia-reperfusion injury, and reduced ICAM-1 expression.

Dataset Information

Structure, Expression, and Function of ICAM-5.

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Structure, Expression, and Function of ICAM-5.

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