Probing Active Cocaine Vaccination Performance through Catalytic and Noncatalytic Hapten Design
摘要:
Presently, there are no FDA-approved medications to treat cocaine addiction. Active vaccination has emerged as one approach to intervene through the rapid sequestering of the circulating drug, thus terminating both psychoactive effects and drug toxicity. Herein, we report our efforts examining two complementary, but mechanistically distinct active vaccines, i.e., noncatalytic and catalytic, for cocaine treatment. A cocaine-like hapten GNE and a cocaine transition-state analogue GNT were used to generate the active vaccines, respectively. GNE-KLH (keyhole limpet hemocyannin) was found to elicit persistent high-titer, cocaine-specific antibodies and blunt cocaine-induced locomotor behaviors. Catalytic antibodies induced by GNT-KLH were also shown to produce potent titers and suppress locomotor response in mice; however, upon repeated cocaine challenges, the vaccine's protecting effects waned. In depth kinetic analysis suggested that loss of catalytic activity was due to antibody modification by cocaine. The work provides new insights for the development of active vaccines for the treatment of cocaine abuse.
[EN] COMPOUNDS (CYSTEIN BASED LIPOPEPTIDES) AND COMPOSITIONS AS TLR2 AGONISTS USED FOR TREATING INFECTIONS, INFLAMMATIONS, RESPIRATORY DISEASES ETC.<br/>[FR] COMPOSÉS (LIPOPEPTIDES À BASE DE CYSTÉINE) ET COMPOSITIONS EN TANT QU'AGONISTES DES TLR2 UTILISÉS POUR TRAITER DES INFECTIONS, INFLAMMATIONS, MALADIES RESPIRATOIRES ENTRE AUTRES
申请人:IRM LLC
公开号:WO2011119759A1
公开(公告)日:2011-09-29
The invention provides a novel class of compounds viz. generally lipopeptides like Pam3CSK4, immunogenic compositions and pharmaceutical compositions comprising such compounds and methods of using such compounds to treat or prevent diseases or disorders associated with Toll-Like Receptors 2. In one aspect, the compounds are useful as adjuvants for enhancing the effectiveness a vaccine.
Synthesis and Biological Evaluations of Cytotoxic and Antiangiogenic Triterpenoids-Jacaranone Conjugates
作者:Hua Sun、Partick Y.K. Yue、Shao-Rong Wang、Lihong Huo、Ying Zhao、Songbo Xie、Jens V. Kringelum、Ole Lund、Olivier Taboureau、Jun Zhou、Ricky N. S. Wong、Wei-Shuo Fang
DOI:10.2174/1573406412666160502153930
日期:2016.10.28
agents arises as a more effective and selective therapeutic approach for the treatment of cancer. In addition to reduced acute toxicity, the efficacy of chemotherapy could be improved when administered in combination specific antiangiogenic with cytotoxic agents. The conjugation or hybridization of bifunctional molecules is one of the alternative rationaldesign strategies for co-administration of anticancer
O‐Benzylation proceeds depending on both steric and electronic factors around the amide group. Thus, some amides have been selectively cleaved over other amides. Furthermore, intramolecular chemoselective cleavage of an amide group in the presence of an ester group was achieved. Such selective hydrolytic reactions cannot be performed with Meerwein reagents as well as under acidic or basic hydrolytic
1,3-dihydroindol-2-one derivatives substituted in the 3-position by a
申请人:Sanofi
公开号:US05594023A1
公开(公告)日:1997-01-14
The present invention relates to compounds of formula (I) and salts thereof, where appropriate: ##STR1## These compounds have an affinity for the vasopressin and/or ocytocin receptors.
Lipase sensing by naphthalene diimide based fluorescent organic nanoparticles: a solvent induced manifestation of self-assembly
作者:Debayan Chakraborty、Deblina Sarkar、Anup Kumar Ghosh、Prasanta Kumar Das
DOI:10.1039/d0sm02056g
日期:——
emission (AIE) properties. To this end, NDI-based, benzyl alcohol protected alkyl chain (C1, C5, and C10) linked amphiphilic molecules (NDI-1,2,3) were synthesized. Among the synthesized amphiphiles, benzyl ester linked C5 tailored naphthalenediimide (NDI-2) exhibited AIE with an emission maximum at 490 nm in a DMSO–water binary solvent system from fw = 30% and above water content. The fibrous morphology
超分子自组装的精确控制对于跨科学领域的纳米结构的苛刻应用引起了极大的兴趣。这项研究描绘了萘二酰亚胺(NDI)衍生的两亲物在二甲基亚砜(DMSO)中变化的水的形态转化,并利用其聚集诱导发射(AIE)特性选择性地检测脂肪酶。为此,合成了基于NDI的苯甲醇保护的烷基链(C1,C5和C10)连接的两亲分子(NDI-1,2,3)。中合成的两亲物,苄基酯连接的C5定制萘二酰亚胺(NDI-2 )显示出AIE具有发射最大值在490nm处的DMSO-水二元溶剂系统从˚F瓦特= 30%以上的水分含量。随着DMSO中水含量的增加,NDI-2的纤维形态在f w = 30%时逐渐转变为球形聚集颗粒,同时发射强度稳定增加。在˚F瓦特在DMSO = 99%水,观察到完全转化为荧光有机纳米颗粒(FONPs)。显微和光谱技术证明了溶剂驱动的形态转变和NDI-2的AIE特性。而且,这个NDI-2的AIEFONPs在选择性的关断用的检测10