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Differentiation of induced pluripotent stem cells into functional oligodendrocytes.
The technology to generate autologous pluripotent stem cells (iPS cells) from almost any somatic cell type has brought various cell replacement therapies within clinical research. Besides the challenge to optimize iPS protocols to appropriate safety and GMP levels, procedures need to be developed to differentiate iPS cells into specific fully differentiated and functional cell types for implantation purposes. In this article, we describe a protocol to differentiate mouse iPS cells into oligodendrocytes with the aim to investigate the feasibility of IPS stem cell-based therapy for demyelinating disorders, such as multiple sclerosis. Our protocol results in the generation of oligodendrocyte precursor cells (OPCs) that can develop into mature, myelinating oligodendrocytes in-vitro (co-culture with DRG neurons) as well as in-vivo (after implantation in the demyelinated corpus callosum of cuprizone-treated mice). We report the importance of complete purification of the iPS-derived OPC suspension to prevent the contamination with teratoma-forming iPS cells. © 2011 Wiley-Liss, Inc. Copyright © 2011 Wiley-Liss, Inc.
Document Type:

Reference

Product Catalog Number:

Multiple
Product Catalog Name:

Multiple
3D nuclear organization of telomeres in the Hodgkin cell lines U-HO1 and U-HO1-PTPN1: PTPN1 expression prevents the formation of very short telomeres including t-stumps.
In cancer cells the three-dimensional (3D) telomere organization of interphase nuclei into a telomeric disk is heavily distorted and aggregates are found. In Hodgkin's lymphoma quantitative FISH (3D Q-FISH) reveals a major impact of nuclear telomere dynamics during the transition form mononuclear Hodgkin (H) to diagnostic multinuclear Reed-Sternberg (RS) cells. In vitro and in vivo formation of RS-cells is associated with the increase of very short telomeres including t-stumps, telomere loss, telomeric aggregate formation and the generation of ghost nuclei.
Document Type:

Reference

Product Catalog Number:

S7700
Product Catalog Name:

TRAPeze® Telomerase Detection Kit
Bone morphogenetic protein receptor expressions in the adult rat brain.
Bone morphogenetic proteins (BMP) are members of the transforming growth factor ? (TGF-?) superfamily. BMPs exert its biological functions by interacting with membrane bound receptors belonging to the serine/threonine kinase family including bone morphogenetic protein receptor I (BMPRIA, BMPRIB) and type II (BMPRII). Although BMPR expressions have been well described in the early development of the CNS, little information is available for their expressions in the adult CNS. We, thus, investigated BMPR expressions in the adult rat CNS using immunohistochemistry. Here, we show that BMPRIA, IB and II proteins are widely expressed throughout the adult CNS. Interestingly, we observed that BMPRIA, IB and II proteins are abundantly expressed in many kinds of axons. In addition, we found that BAMRIB-IR was preferentially expressed in dendrites of many neurons throughout the CNS, while BMPRIA was mainly expressed in cell bodies, showing that BMPRIA and BMPRIB are differentially targeted in a single neuron. In addition, besides abundant BMPR expressions in neurons, we exhibited BMPR expressions in astrocytes and ependymal cells. These data indicate that BMPRs are more widely expressed throughout the adult CNS than previously reported, and their continued abundant expressions in the adult brain strongly support the idea that BMPRs play pivotal roles also in the adult brain.
Document Type:

Reference

Product Catalog Number:

MAB360
Product Catalog Name:

Anti-Glial Fibrillary Acidic Protein Antibody, clone GA5