Effects of NCAM on migration in bone marrow stromal cells (BMSCs) induced by IGF-1.

Bone marrow stromal cells (BMSCs) have always been attractive targets for clinical cell-based therapies, because of their multipotency and self-renewing abilities. Recently, it has been found that these cells migrate to sites of tissue injury and contribute to repair, however this phenomenon of BMSC...

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Main Author: Hang, Yi Ting.
Other Authors: Feng Zhiwei
Format: Final Year Project (FYP)
Language:English
Published: 2011
Subjects:
Online Access:http://hdl.handle.net/10356/45262
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author Hang, Yi Ting.
author2 Feng Zhiwei
author_facet Feng Zhiwei
Hang, Yi Ting.
author_sort Hang, Yi Ting.
collection NTU
description Bone marrow stromal cells (BMSCs) have always been attractive targets for clinical cell-based therapies, because of their multipotency and self-renewing abilities. Recently, it has been found that these cells migrate to sites of tissue injury and contribute to repair, however this phenomenon of BMSC homing has not been well-characterized. In this project, we hypothesized that NCAM mediates downstream signaling events in response to BMSC migration induced by IGF-1 stimulation. To investigate a possible connection in the roles of these two molecules during BMSC homing, migration assays and western blots were performed; which demonstrated that IGF-1 had a strong stimulatory effect on BMSC migration in vitro. In the absence of NCAM, the ability of IGF-1 to enhance migration was significantly impaired, suggesting that the presence of NCAM is important for the effects of IGF-1. We also found that the level of phosphorylated extracellular signal-regulated kinase (ERK) was increased when NCAM+/+ BMSCs were stimulated with IGF-1. This brings forth the ERK/MAPK pathway as a possible signaling route that is upregulated by NCAM in response to IGF-1 induction. More research could be done on this pathway to determine the molecular basis of IGF-1 signaling through NCAM and hence increase current understanding of BMSC migration.
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spelling ntu-10356/452622023-02-28T18:05:11Z Effects of NCAM on migration in bone marrow stromal cells (BMSCs) induced by IGF-1. Hang, Yi Ting. Feng Zhiwei School of Biological Sciences DRNTU::Science::Biological sciences::Cytology Bone marrow stromal cells (BMSCs) have always been attractive targets for clinical cell-based therapies, because of their multipotency and self-renewing abilities. Recently, it has been found that these cells migrate to sites of tissue injury and contribute to repair, however this phenomenon of BMSC homing has not been well-characterized. In this project, we hypothesized that NCAM mediates downstream signaling events in response to BMSC migration induced by IGF-1 stimulation. To investigate a possible connection in the roles of these two molecules during BMSC homing, migration assays and western blots were performed; which demonstrated that IGF-1 had a strong stimulatory effect on BMSC migration in vitro. In the absence of NCAM, the ability of IGF-1 to enhance migration was significantly impaired, suggesting that the presence of NCAM is important for the effects of IGF-1. We also found that the level of phosphorylated extracellular signal-regulated kinase (ERK) was increased when NCAM+/+ BMSCs were stimulated with IGF-1. This brings forth the ERK/MAPK pathway as a possible signaling route that is upregulated by NCAM in response to IGF-1 induction. More research could be done on this pathway to determine the molecular basis of IGF-1 signaling through NCAM and hence increase current understanding of BMSC migration. Bachelor of Science in Biological Sciences 2011-06-10T06:09:41Z 2011-06-10T06:09:41Z 2011 2011 Final Year Project (FYP) http://hdl.handle.net/10356/45262 en Nanyang Technological University 34 p. application/pdf
spellingShingle DRNTU::Science::Biological sciences::Cytology
Hang, Yi Ting.
Effects of NCAM on migration in bone marrow stromal cells (BMSCs) induced by IGF-1.
title Effects of NCAM on migration in bone marrow stromal cells (BMSCs) induced by IGF-1.
title_full Effects of NCAM on migration in bone marrow stromal cells (BMSCs) induced by IGF-1.
title_fullStr Effects of NCAM on migration in bone marrow stromal cells (BMSCs) induced by IGF-1.
title_full_unstemmed Effects of NCAM on migration in bone marrow stromal cells (BMSCs) induced by IGF-1.
title_short Effects of NCAM on migration in bone marrow stromal cells (BMSCs) induced by IGF-1.
title_sort effects of ncam on migration in bone marrow stromal cells bmscs induced by igf 1
topic DRNTU::Science::Biological sciences::Cytology
url http://hdl.handle.net/10356/45262
work_keys_str_mv AT hangyiting effectsofncamonmigrationinbonemarrowstromalcellsbmscsinducedbyigf1