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Arsenicin A from the marine sponge Echinochalina bargibanti as a drug lead: Synthesis and antitumor Evaluation of related arsenicals

Author(s): Ines Mancini

 Arsenic is an incomprehensible component, on one hand it is a profoundly poisonous and an infamous cancer-causing agent while on the other it tends to be a beguiling medication. Salvarsan for instance was the principal arsenic based medication, orchestrated for the powerful treatment of the irresistible ailment syphilis and resting sickness1. Arsenic oxides, widely abused in conventional Chinese medication, have likewise been researched as novel chemotherapeutic mixes. In 2000, arsenic trioxide (ATO) was endorsed by the Food and Drug Administration (FDA) as a chemotherapeutic specialist and at present it is one of the best medications in the treatment of intense promyelocytic leukemia (APL), prompting total abatement in a high level of patients. Comparable movement was additionally observed for arsenolite (As4O6), which demonstrated apoptosis-initiating impacts against human leukemic and some strong tumor cells.


These positive outcomes provoked noteworthy enthusiasm for the utilization of arsenic oxides for the treatment of strong tumors. While the utilization of ATO as a solitary specialist demonstrated little advantage, striking clinical results were accounted for when utilized in blend with other chemotherapeutic operators. A similar report demonstrated that As4O6 is a superior inhibitor of human cervical malignant growth than As2O3. It has additionally been exhibited that arsenic tetroxide has a more prominent potential against human cervix, gastric, and head disease cells when utilized in mix, for example with paclitaxel. Notwithstanding the accomplishment of arsenic trioxide in the treatment of APL, its viability towards strong tumors is restricted by its helpless pharmacokinetics and portion constraining harmfulness. Nanotechnology anyway offers an appealing answer for these shorth comings. For instance, permeable silica brilliant nanoparticles have been created as nano carries for arsenic trioxide displaying a lot higher cytotoxicity to an assortment of malignant growth cells than the free compound.


Generally, normal items have assumed a conspicuous important job in medication and keep on doing so today. Marine metabolites have increased noteworthy consideration as fascinating leads, utilizing their impossible to miss atomic structures and their regular job in securing the source living being. In this structure, the marine item arsenicinA(=1,2,4,6-trioxa-1,3,5,7-tetrarsatricyclodecane) ,secluded in a limited quantity from the phloecilosclerid wipe Echinochalina            bargibanti gathered along the New Caledonian coasts, is a model. Revealed as the principal natural polyarsenic compound at any point discovered normally, its adamantane confine looks like arsenolite structure. It is abnormal, in light of the fact that regular organoarsenicals confined so far included monoarsenic metabolites, generally as apolar methylated structures, or water solvent betaine and arsenosugars


As of late, racemic arsenicin A was blended in five stages and 36% by and large yield beginning from phenylarsinic corrosive and its precious stone structure was portrayed. In a cytotoxicity assessment on some human carcinoma cell lines, it end up being productive in prompting cell passing in intense promyelocytic leukemia cell lines and in halting the progression of pancreatic adenocarcinoma and glioblastoma.


In view of information obtained up until now, the capability of arsenicin An as a promising lead in tranquilize improvement warrants structure-action relationship (SAR) concentrates on manufactured analogs. The motivation behind this work is to expand the atomic decent variety by related mixes, open by a productive manufactured technique and demonstrating an increasingly        powerful bioactivity.      

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