Harringtonine hmoov

Harringtonine feem ntau yog muab los ua ib qho dawb rau tawm -dawb lossis daj ntseg- cov hmoov daj lossis amorphous khoom. Nws cov tsos yuav txawv nyob ntawm purity, residual kuab tshuaj, qib oxidation, thiab cov txheej txheem ziab.

Cov yam ntxwv tseem ceeb Physicochemical

• Nws muaj ntau cov pa oxygen- muaj cov pab pawg ua haujlwm tab sis kuj muaj cov pob txha pob txha, uas yog hydrophobic polycyclic.
• Nws cov tswv yim solubility nyob rau hauv cov dej ntshiab yog feem ntau txwv.
• Nws yog feem ntau yooj yim rau kev npaj hauv DMSO, methanol, thiab qee qhov aqueous organic solvent systems.
• Lub molecule muaj ntau lub chaw stereogenic, ua kom muaj kev ncaj ncees stereochemical yog ib qho tseem ceeb ntawm kev ua haujlwm lom neeg thiab kev tswj kom zoo.
• Nws txoj kev sib txuas ester tuaj yeem raug cuam tshuam rau hydrolysis nyob rau hauv cov xwm txheej tsis tsim nyog.
• Ntev raug rau lub teeb, tshav kub, pH huab cua, los yog noo noo yuav txhawb kev degradation.
• Cov ntsiab lus ntawm cov khoom lag luam tseem ceeb tuaj yeem ua rau crystallize, precipitate, los yog adsorb rau hauv cov thawv ntim khoom thaum lub sij hawm qis -kub cia.

Lub hauv paus tseem ceeb ntawm kev ua yeeb yam ntawm Harringtonine yog inhibition ntawm ribosome -mediated protein synthesis hauv eukaryotic hlwb.

Lub Mechanism tuaj yeem sau tau raws li hauv qab no

• Harringtonine cuam tshuam nrog thaj chaw ua haujlwm ntawm eukaryotic ribosome.
• Nws cuam tshuam nrog aminoacyl-tRNA kev pab lossis peptide thaum ntxov- kev sib cog lus.
• Cov ribosomes uas tau txais tshiab tshiab tsis tuaj yeem nkag mus rau qhov qhib kev nyeem ntawv zoo.
• Ribosomes twb muab tso rau hauv qab mus txuas ntxiv elongation thiab maj mam khiav tawm ntawm mRNA.
• Ntiaj teb no synthesis ntawm cov proteins tshiab tom qab poob.

Downstream Biological teebmeem

Ua raws li kev txhais lus inhibition, cov proteins uas muaj luv luv hauv lub cev ib nrab- lub neej feem ntau yog thawj zaug poob. Cov no yuav suav nrog:

• Cell -cycle regulatory proteins;
• Anti-apoptotic proteins;
• Kev loj hlob - thiab ciaj sia taus- qhia cov proteins;
• Xaiv cov kab mob oncogenic;
• Luv-cov proteins uas nyob hauv yuav tsum tau muaj rau kev ua kom muaj kab mob los yog kis kab mob.

Cov teebmeem tshwm sim tuaj yeem suav nrog cell -lub voj voog raug ntes, mitochondrial kev nyuaj siab, kev tawm tsam ntawm kev loj hlob, thiab apoptosis.

Txawm li cas los xij, cov lus teb no feem ntau yog downstream qhov tshwm sim ntawm lub ntiaj teb los yog xaiv kev txhais lus inhibition. Lawv tsis tas yuav qhia tias Harringtonine txuas ncaj qha rau txhua qhov cuam tshuam cov cim qhia protein.

Ib qho ntawm feem ntau tsim thiab tshwj xeeb daim ntawv thov ntawm Harringtonine yog nws siv raws li ib tug txhais lus - pib daim ntawv qhia cov cuab yeej nyob rau hauv ribosome profiling, los yog Ribo -seq.

Txoj Cai Kev Tshawb Fawb

Tom qab luv luv raug rau Harringtonine:

• Newly pib ribosomes raug ntes nyob ze kev txhais lus- pib qhov chaw;
• Ribosomes twb nyob hauv cheeb tsam coding txuas ntxiv mus thiab khiav tawm ntawm mRNA;
• Ribosome- cov khoom tiv thaiv tau ua kom muaj txiaj ntsig nyob ze ntawm kev txhais lus- pib qhov chaw;
• Sequencing thiab mapping ntawm cov fragments no yuav siv tau los infer txoj hauj lwm ntawm kev txhais lus - pib qhov chaw.

Cov ntawv thov tshawb fawb

Harringtonine-pab Ribo-seq tuaj yeem txhawb kev tshawb nrhiav:

• Kev cai txhais lus thoob ntiaj teb;
• Kev ntxhov siab -vim kev hloov pauv hauv kev pib txhais lus;
• Cancer{0}}sociated translational reprogramming;
• Viral dependence ntawm tus tswv tsev -cell txhais;
• Alternative protein ntau isoform;
• Muaj nuj nqi annotation ntawm yav tas los tsis paub coding cheeb tsam;
• Kev txhais lus ntawm cov ntawv qhib qhib nyeem ntawv;
• Tshuaj-vim kev hloov pauv hauv kev txhais lus.

Kev tshawb nrhiav Antitumor

Hauv vitro, Harringtonine tuaj yeem cuam tshuam cov protein synthesis hauv cov hlwb sai sai thiab tuaj yeem ua rau ntau cov lus teb hauv qab.

Vim tias cov hlwb tsis zoo tuaj yeem vam khom ntau ntxiv ntawm kev tsim cov luv luv -nyob oncogenic thiab cov proteins uas muaj sia nyob, inhibition ntawm kev txhais lus tuaj yeem ua rau muaj kev cuam tshuam loj heev.

Txawm li cas los xij, Harringtonine tsis yog ib txwm xaiv rau cov kab mob malignant. Ib txwm proliferating hlwb kuj yuav raug cuam tshuam, uas tuaj yeem txwv lub qhov rais kho.

Antiviral tshawb fawb

Cov kab mob nyob ntawm ntau yam ntawm tus tswv tsev -cell ribosomes los tsim cov kab mob kis kab mob. Los ntawm kev txwv kev txhais lus, Harringtonine tuaj yeem txo cov kab mob protein ntau thiab cov kab mob sib kis hauv cov xov tooj ntawm tes xaiv -raws li qauv.

Cov txheej txheem tshawb fawb muaj peev xwm muaj xws li:

• Kev txo qis ntawm tus kab mob cov qauv-protein synthesis;
• Kev tawm tsam ntawm cov kab mob enzyme ntau lawm;
• Kev cuam tshuam nrog cov kab mob polyprotein ua;
• Txo kev sib sau los yog tso tawm cov kab mob progeny;
• Kev cuam tshuam ntawm luv luv -cov neeg nyob hauv cov proteins uas xav tau rau kev rov ua dua tus kabmob.

Txawm li cas los xij, nws cov tshuaj tiv thaiv kab mob yuav tsum tau txhais ua kom ceev faj vim tias tib lub tswv yim tseem tuaj yeem cuam tshuam tus tswv tsev tseem ceeb -cell protein synthesis.