Navigation Links
'Housekeeping' mechanism for brain stem cells discovered
Date:4/22/2012

(New York, NY, April 22, 2012) Researchers at Columbia University Medical Center (CUMC) have identified a molecular pathway that controls the retention and release of the brain's stem cells. The discovery offers new insights into normal and abnormal neurologic development and could eventually lead to regenerative therapies for neurologic disease and injury. The findings, from a collaborative effort of the laboratories of Drs. Anna Lasorella and Antonio Iavarone, were published today in the online edition of Nature Cell Biology.

The research builds on recent studies, which showed that stem cells reside in specialized niches, or microenvironments, that support and maintain them.

"From this research, we knew that when stem cells detach from their niche, they lose their identity as stem cells and begin to differentiate into specific cell types," said co-senior author Antonio Iavarone, MD, professor of Pathology and Neurology at CUMC.

"However, the pathways that regulate the interaction of stem cells with their niche were obscure," said co-senior author Anna Lasorella, MD, associate professor of Pathology and Pediatrics at CUMC and a member of the Columbia Stem Cell Initiative.

In the brain, the stem cell niche is located in an area adjacent to the ventricles, the fluid-filled spaces within the brain. Neural stem cells (NSCs) within the niche are carefully regulated, so that enough cells are released to populate specific brain areas, while a sufficient supply is kept in reserve.

In previous studies, Drs. Iavarone and Lasorella focused on molecules called Id (inhibitor of differentiation) proteins, which regulate various stem cell properties. They undertook the present study to determine how Id proteins maintain stem cell identity.

The team developed a genetically altered strain of mice in which Id proteins were silenced, or knocked down, in NSCs. In the absence of Id proteins, mice died within 24
'/>"/>

Contact: Karin Eskenazi
ket2116@columbia.edu
212-342-0508
Columbia University Medical Center
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Conaway Lab identifies novel mechanism for regulation of gene expression
2. Rong Li Lab probes mechanism of asymmetry in meiotic cell division
3. Newly-discovered mechanism can explain the Beckwith-Wiedemann syndrome
4. Scientists unveil mechanism for up and down in plants
5. New cell division mechanism discovered
6. Corn researchers discover novel gene shut-off mechanisms
7. New regulatory mechanism discovered for cell identify and behavior in forming organs
8. Biomedical engineers detective work reveals antibiotic mechanism
9. Mechanisms of cardiovascular disease and cancer give clues to new therapies
10. Argonne scientists discover possible mechanism for creating handedness in biological molecules
11. A little wine boosts omega-3 in the body: Researchers find a novel mechanism for a healthier heart
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/31/2015)... 2015   Guidepoint , a leading global research ... Pain Management TRACKER, part of the Guidepoint TRACKER ... the medical device and therapeutics markets. The Post-Surgical Pain ... volumes, market share, and adoption rates across three major ... surgery. The Post-Surgical Pain Management TRACKER will ...
(Date:3/26/2015)... 2015 The Granite Club, ... athletic club, today announced it has implemented a state-of-the-art ... movement for members and staff, while restricting access to ... we selected FST,s IMID Access system because it has ... members and staff, in addition to unparalleled security," said ...
(Date:3/24/2015)... Markets ( http://www.researchandmarkets.com/research/kvdtcw/face_and_voice ) has announced the addition of ... report to their offering. This report analyzes the ... the following Segments: Face Biometrics, and Voice Biometrics. The report provides ... Japan , Europe , ... Africa , and Latin America ...
Breaking Biology News(10 mins):Guidepoint Launches Post-Surgical Pain Management TRACKER 2Guidepoint Launches Post-Surgical Pain Management TRACKER 3Granite Club First Private Club in North America to Implement FST Biometrics Secure Access Solution, as Part of Multi-million Dollar Expansion 2Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 2Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 3Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 4Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 5Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 6
... Research Institute (NHGRI), one of the National Institutes ... Sequencing Research Network will begin sequencing 12 more ... and several important insects, as part of its ... genome. , The National Advisory Council for Human ...
... a marvel of versatility, creating a variety of cells that ... out these tasks, immune cells follow a career path that ... in the May 2005 issue of Immunity, Fox Chase Cancer ... Dietmar J. Kappes, Ph.D., show that cell-receptor signaling strength influences ...
... the biological literature resides in full text articles, instead ... publicly available literature data mining tools. Most literature mining ... extracted from curated gene or protein databases. This is ... the many name variants which are used to refer ...
Cached Biology News:NHGRI targets 12 more organisms for genome sequencing 2NHGRI targets 12 more organisms for genome sequencing 3NHGRI targets 12 more organisms for genome sequencing 4NHGRI targets 12 more organisms for genome sequencing 5Fox Chase study shows that weakened T-cell receptor signals change T-cell lineage 2Fox Chase study shows that weakened T-cell receptor signals change T-cell lineage 3
(Date:4/25/2015)... Join us for a webinar at 12 pm ... using the Transcreener® ADP Assay , Register Now ... being incorporated into lead development efforts because longer engagement ... therapeutic window and reduced side effects. Though residence ... surface plasmon resonance, conjugation of drugs can affect their ...
(Date:4/24/2015)... , April 24, 2015 /PRNewswire/ - BioAmber Inc. (NYSE: ... MaterialScience as the supplier of bio-succinic acid used ... polyurethanes for textile applications that Bayer MaterialScience has ... launched IMPRANIL ® eco, a series of ... reaches as high as 65%.  IMPRANIL ® ...
(Date:4/24/2015)... 24, 2015 Seoul Semiconductor announced ... various applications in the lighting market. In ... of this technology in emerging markets such as ... wide range of applications such as streetlight and ... lighting. , First launched in 2005 the Acrich ...
(Date:4/23/2015)... , April 23, 2015 BioTE Medical President ... book "Age Healthier Live Happier - Avoiding Over-Medication through ... Age Management Medicine Group Conference at JW Marriott / ... ",Age Healthier Live Happier, is a welcomed ... over-medication and searching for a higher quality of life ...
Breaking Biology Technology:BellBrook Labs Webinar: Analyzing Kinase Inhibitor Residence Times using the Transcreener® ADP Assay 2Bayer MaterialScience Names BioAmber As Its Supplier For New Product Line - Bio-succinic acid forms backbone of innovative new bio-based polyurethanes for textiles 2Bayer MaterialScience Names BioAmber As Its Supplier For New Product Line - Bio-succinic acid forms backbone of innovative new bio-based polyurethanes for textiles 3Bayer MaterialScience Names BioAmber As Its Supplier For New Product Line - Bio-succinic acid forms backbone of innovative new bio-based polyurethanes for textiles 4Acrich Technology from Seoul Semiconductor Adopted in Installations Worldwide 2Release and Book Signing of BioTE Medical President Gary Donovitz M.D. 'Age Healthier Live Happier' at Age Management Medicine Group (AMMG) Conference 2Release and Book Signing of BioTE Medical President Gary Donovitz M.D. 'Age Healthier Live Happier' at Age Management Medicine Group (AMMG) Conference 3
... Cylene Pharmaceuticals today announced,the initiation of a Phase ... carcinoid/neuroendocrine tumors (C/NET), which are malignant,cancers arising from ... "Quarfloxin (CX-3543) is a small molecule ... abnormal nucleoli of cancer cells, thereby,selectively inducing apoptotic ...
... PAREXEL International,Corporation (Nasdaq: PRXL ), ... the Company has been named the "Best Contract,Research ... award was,presented to PAREXEL at the fourth annual ... London, England. The Scrip Awards are designed to,celebrate ...
... Precision(R), Inc. a,leading provider of imaging, measurement, and ... that it will introduce a new imaging,system at ... conference with,twice the resolution of traditional microscopes. ... system developed by scientists at the, University of ...
Cached Biology Technology:Cylene Pharmaceuticals Initiates Phase II Clinical Trial of Quarfloxin (CX-3543) in Patients With Carcinoid/Neuroendocrine Tumors 2Cylene Pharmaceuticals Initiates Phase II Clinical Trial of Quarfloxin (CX-3543) in Patients With Carcinoid/Neuroendocrine Tumors 3PAREXEL Receives Best CRO Award from Scrip 2PAREXEL Receives Best CRO Award from Scrip 3PAREXEL Receives Best CRO Award from Scrip 4Applied Precision Introduces New Super-Resolution Imaging System Doubling Resolution of Traditional Microscopes 2
Tan solid. A glycoside used to permeabilize cellular membranes. Exhibits hemolytic activity. Contaminants: ash: ≤10%. Soluble in H 2 O. pH 4.4 - 4.6. RTECS VQ1400000, CAS 8047-15-2. References:...
Anti Autotaxin /ENPP2 , - (Rabbit)...
... yellow solid. An N-nitroso-containing diabetogenic compound ... donor in pancreatic islets. An antibiotic ... alkylation and DNA strand breaks in ... HPLC. Soluble in H 2 O. ...
Mouse monoclonal antibody to CDC2L5 - cell division cycle 2-like 5 (cholinesterase-related cell division controller)...
Biology Products: