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Joint retreat of NUS and KI labs in Singapore

Fellows from the KI lab flew to Singapore for a 2 day retreat with the NUS group on 16th and 17th of January 2017. After 4 years of joint lab meetings over Skype, fellows of both groups enjoyed an opportunity to discuss common projects and ideas face to face. We were joined by the NUS and UCSD groups of Prof. Ed Koo and had joint plenary and also parallel sessions, as well as group building activities, as shown in the photo below.

 

Open Postdoctoral Positions

UPDATE 2017-05-29: The positions have been filled. 

Postdoc/Research Fellows are being recruited to our NUS laboratory. We are seeking talented, innovative and enthusiastic researchers with a PhD awarded within the last 5 years.

Cell signaling

The successful candidate will have a strong background in studies of cell signaling using molecular, cellular and biochemical methods. The aim of the project is to elucidate mechanisms of differential signaling by death receptors through the NFkB, c-Jun kinase and RhoA GTPase pathways, among others, taking advantage of recent knowledge on structure-function relationships in this class of receptors as well as a large collection of mutants developed at our laboratory. Strong expertise in cell and molecular biology techniques is essential. Additional expertise in live cell imaging will also be an asset to the project.

Drug Discovery

The successful candidate will have a strong background in studies of intracellular signaling involving biochemical assays, gene reporter assays and microscopy techniques. The aim of the project is the identification and characterisation of novel small molecule modulators (inhibitors and activators) of growth factor receptor signaling taking advantage of a novel screening strategy developed in the laboratory based on recent knowledge on the mechanisms of activation and downstream signal propagation of death receptors and receptors of the TGFb superfamily. Strong expertise in cell and molecular biology techniques is essential. Additional expertise in small molecule screening and/or chemistry will also be an asset to the project.

Applications, including CV, list of publications and statement of future interests should be sent to Prof. Carlos Ibanez . Applicants should arrange to have at least two confidential letters of reference sent independently by referees to this email address.

Funding is available for an initial period of 2 to 3 years, starting any time during 2017.

Deadline for the application is March 07, 2017.

New paper shows novel function of the GFRα1 receptor

In this new paper, we show how the GFRα1 receptor regulates Purkinje cell migration independently of GDNF or RET, by limiting the function of NCAM. The paper has just been published in Cell Reports.

During embryonic development of the cerebellum, Purkinje cells (PCs) migrate away from the ventricular zone to form the PC plate. The mechanisms that regulate PC migration are incompletely understood. Here, we report that the neurotrophic receptor GFRα1 is transiently expressed in developing PCs and loss of GFRα1 delays PC migration. Neither GDNF nor RET, the canonical GFRα1 ligand and co-receptor, respectively, contribute to this process. Instead, we found that the neural cell adhesion molecule NCAM is co-expressed and directly interacts with GFRα1 in embryonic PCs. Genetic reduction of NCAM expression enhances wild-type PC migration and restores migration in Gfra1 mutants, indicating that NCAM restricts PC migration in the embryonic cerebellum. In vitro experiments indicated that GFRα1 can function both in cis and trans to counteract NCAM and promote PC migration. Collectively, our studies show that GFRα1 contributes to PC migration by limiting NCAM function.

Read the full paper HERE.

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