Immunostimulating guanine derivatives, compositions and methods
申请人:SCRIPPS CLINIC AND RESEARCH FOUNDATION
公开号:EP0341066A2
公开(公告)日:1989-11-08
7,8-Disubstituted guanosine nucleoside derivatives are found to be potent immune response enhancing agents in human and animal cells. 7-Substituents are heteroatom-substituted-hydrocarbyl radicals having a length greater than ethyl and less than about decyl. 8-Substituents are =O, =S, =Se and =NCN. Compositions and methods of use are also disclosed.
[EN] CANCEROUS B CELL TREATMENT USING SUBSTITUTED NUCLEOSIDE DERIVATIVES<br/>[FR] TRAITEMENT DE LYMPHOCYTES B CANCEREUX UTILISANT DES DERIVES DE NUCLEOSIDES SUBSTITUES
申请人:THE SCRIPPS RESEARCH INSTITUTE
公开号:WO1994011003A1
公开(公告)日:1994-05-26
(EN) Uses and processes for the killing of cancerous B cells, and particularly peripheral chronic lymphocytic leukemia (CLL) cells are disclosed. In one process, cancerous B cells that do not proliferate when contacted wtih an immune response-enhancing agent are contacted with an amount of such an agent sufficient to cause peripheral CLL cells to undergo blast transformation and proliferation. The contacted cells are then maintained for a time period sufficient for them to die from that contact. Further contacting of those cells with a cytotoxic amount of an anti-cancer drug enhances the death of those cancer cells. In another process, peripheral CLL cells that proliferate on contact with an immune response-enhancing agent are contacted with a proliferation-inducing amount of such an agent. The contacted cells are maintained for a time period sufficient to undergo blast transformation and proliferation, and the blasts are then contacted with a cytotoxic amount of an anti-cancer drug and maintained.(FR) Procédés de destruction de lymphocytes B cancéreux, et notamment de cellules responsables de la leucémie lymphocytaire chronique périphérique (CLL). Dans un procédé, les lymphocytes B cancéreux qui ne prolifèrent pas lorsqu'ils sont mis en contact avec un agent stimulant la réponse immunitaire sont mis en contact avec une quantité de cet agent suffisante pour en provoquer la transformation en blastocystes et la prolifération. On maintient ces cellules dans ces conditions pendant une période de temps suffisante pour en proquer la mort. Une mise en contact de ces cellules avec une quantité cytotoxique d'un médicament anticancer provoque une plus grande destruction de ces cellules cancéreuses. Dans un autre procédé, les cellules CLL qui prolifèrent en contact avec un agent stimulant la réponse immunitaire sont mises en contact avec une quantité de cet agent induisant la prolifération. Ces cellules sont maintenues dans ces conditions pendant une période de temps suffisante pour en provoquer la transformation en blastocystes et la prolifération, après quoi on met les blastocystes en contact avec une quantité cytotoxique d'un médicament anticancer.
Small-Molecule Immunostimulants. Synthesis and Activity of 7,8-Disubstituted Guanosines and Structurally Related Compounds
作者:Allen B. Reitz、Michael G. Goodman、Barbara L. Pope、Dennis C. Argentieri、Stanley C. Bell、Levelle E. Burr、Erika Chourmouzis、Jon Come、Jacquelyn H. Goodman
DOI:10.1021/jm00047a014
日期:1994.10
NK-selective activity: other N-9 sugar mimetics were also active (97-104), although this activity did not carry over into the human B-cell assay. A total of 80 compounds were prepared and evaluated for their immunostimulating activity. Within this group, compounds could be divided into those that were active in all three assays, those that displayed some measure of selectivity for the adjuvanticity assay, and