Inhibitory activity of a ceramide library on interleukin-4 production from activated T cells
摘要:
Allergic diseases are hypersensitivity disorders associated with the production of specific immunoglobulin E (IgE) to environmental allergens. Interleukin (IL)-4, produced primarily by CD4(+) T cells, is an important stimulus for the switch of the antibody isotype to IgE in both mice and humans. In this study we investigated the inhibitory activity of IL-4 production in activated T cells by screening ceramide derivatives prepared by solid phase combinatorial chemistry. Many ceramide derivatives significantly inhibited IL-4 production in T cells. In particular, ceramide derivatives with a lauroyl group showed strong inhibitory activities on IL-4 production in both phorbol 12-myristate 13-acetate (PMA)-activated EL4 T cells and antigen-primed cells, suggesting that they can be used as compounds for the development of anti-allergic agents. (c) 2005 Elsevier Ltd. All rights reserved.
SPHINGO-GUANIDINES AND THEIR USE AS INHIBITORS OF SPHINGOSINE KINASE
申请人:Szulc Zdzislaw M.
公开号:US20120035268A1
公开(公告)日:2012-02-09
The presently disclosed subject matter provides compounds of the formula: (1) and pharmaceutically acceptable salts thereof, wherein R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
7
, and R
8
are as defined herein. Also disclosed are methods for making the compounds of the formula as set forth hereinabove, their use in inhibiting sphingosine kinase, and their use in the treatment and/or prevention of diseases and/or conditions associated with undesirable ceramidase or sphingosine kinase activity, including, but not limit cancer, cancer metastasis, atherosclerosis, stenosis, inflammation, immunological disorders, asthma, atopic dermatitis, wound healing, and other proliferative diseases.
Synthesis of Ceramide Mimics with a Pseudo Cyclic Framework
作者:Motonari Shibakami、Hikokazu Suzuki、Michiko Mori
DOI:10.1055/s-2003-42094
日期:——
We have designed and synthesized ceramide mimics with a pseudo cyclic framework that can be converted to ‘dimeric’ sphingomyelins and glycosphingolipids for potential components of artificial rafts. These molecules are characterized by the presence of (i) two hydrophilic head groups, (ii) a covalently bonded hydrocarbon chain, and (iii) two untethered alkyl chains. Self-assembling of a ceramide mimic into nanorods is briefly discussed.
Inhibitory activity of a ceramide library on interleukin-4 production from activated T cells
作者:Jin Park、Qian Li、Young-Tae Chang、Tae Sung Kim
DOI:10.1016/j.bmc.2005.01.027
日期:2005.4
Allergic diseases are hypersensitivity disorders associated with the production of specific immunoglobulin E (IgE) to environmental allergens. Interleukin (IL)-4, produced primarily by CD4(+) T cells, is an important stimulus for the switch of the antibody isotype to IgE in both mice and humans. In this study we investigated the inhibitory activity of IL-4 production in activated T cells by screening ceramide derivatives prepared by solid phase combinatorial chemistry. Many ceramide derivatives significantly inhibited IL-4 production in T cells. In particular, ceramide derivatives with a lauroyl group showed strong inhibitory activities on IL-4 production in both phorbol 12-myristate 13-acetate (PMA)-activated EL4 T cells and antigen-primed cells, suggesting that they can be used as compounds for the development of anti-allergic agents. (c) 2005 Elsevier Ltd. All rights reserved.