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Apoptosis induced by the Tibetan herbal remedy PADMA 28 in the T cell-derived lymphocytic leukaemia cell line CEM-C7H2 Marcel Jenny1, Wolfgang Schwaiger1,

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Presentation on theme: "Apoptosis induced by the Tibetan herbal remedy PADMA 28 in the T cell-derived lymphocytic leukaemia cell line CEM-C7H2 Marcel Jenny1, Wolfgang Schwaiger1,"— Presentation transcript:

1 Apoptosis induced by the Tibetan herbal remedy PADMA 28 in the T cell-derived lymphocytic leukaemia cell line CEM-C7H2 Marcel Jenny1, Wolfgang Schwaiger1, David Bernhard2, Oliver A Wrulich1, Daria Cosaceanu3, Dietmar Fuchs4 and Florian Ueberall*1 Published: 02 September 2005 Journal of Carcinogenesis 2005, 4:15 doi:10.1186/1477-3163-4-15 Received: 12 August 2004 Accepted: 02 September 2005 This article is available from: http://www.carcinogenesis.com/content/4/1/15 c 2005 Jenny et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. 顏文笙

2 摘要 PADMA 28 (P28) 為一種西藏的草藥,原用在治療 - 動脈硬化 (atherosclerosis) - 慢性肝炎 (chronic hepatitis) - 呼吸道感染 (infection of the respiratory) 具有抗氧化的特性。本篇文章使用 - 血癌細胞 T cell-derived lymphocytic leukaemia cell line CEM-C7H2 來看 P28 所造成的效果 P28 主要在細胞造成的現象有 1- 抑制細胞增生 1- 抑制細胞增生 2- 造成 poly (ADP-ribose) polymerase 2- 造成 poly (ADP-ribose) polymerase ---PARP fragmentation ---PARP fragmentation 3-apoptosis 3-apoptosis 4-P28 干擾 Bcl-2 的功能 4-P28 干擾 Bcl-2 的功能

3 Composition of PADMA 28

4 Stock solution Of PADMA 28 *EtOH 70% *MeOH *DMSO (dimethylsulfoxide) *PBS (phosphate-buffered saline)

5 *現象* 抑制細胞增生

6 Apoptosis

7

8 *現象* PARP 的 fragmentation PARP 為一種保護 DNA 的蛋白,保護 DNA 不被 Lysis

9 Caspase 是引發 apoptosis 的蛋白,當它是全整的時候是失活的。 但是一但被切開就活化,會一步步活化下去。

10 *現象* P28 干擾 Bcl-2 的功能

11 判定 P28 在 Bcl-2 的上 or 下游作調控

12 Discussion * 作者提出假設,是否 P28 活化了 caspas 。進而導致 PARP cleavage *Bcl-2 有部份的表現是由 INF-gama 控制,作者推測 P28 是在上 游作調控。 *PADMA 28 抑制 cell 的增生 *Apoptosis 的情形要看 cell culture 的情形 * 化療的功效來自於,化合的概念來治療 cancer 。 這和中藥上,複方上的觀念很類似,而且可以降低化療所造成的 毒性傷害 這和中藥上,複方上的觀念很類似,而且可以降低化療所造成的 毒性傷害 * 中草藥在萃取和分餾的過程中,會破壞成份 * 無明確的結果在人體上的一般細胞 * 中草藥並非都是有效且專一的,也無法在血液中固定梯度,只能 控制成份在合理的範圍內


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