Dab tsi yog qhov txiaj ntsig ntawm P21 peptide hmoov?

Hauv kev tshawb nrhiav bioactive peptide, p21 peptide tau txais kev saib xyuas thoob plaws hauv xyoo tas los no. Raws li luv luv -cov saw amino acid ib ntus- tshwj xeeb, ib qho kev ua haujlwm feem ntau yog muab los ntawm p21 protein-p21 peptide hmoov tau tshwm sim los ua lub ntsiab lus kub hauv kev noj zaub mov ntxiv thiab kev tshawb fawb tshawb fawb. Tsab ntawv xov xwm no muab cov ntsiab lus tseem ceeb ntawm cov txiaj ntsig kev noj qab haus huv cuam tshuam nrog p21 peptide hmoov, tshuaj xyuas nws cov txheej txheem ntawm kev ua, cov ntawv thov muaj peev xwm, thiab cov kev xav tseem ceeb.

P21 peptide hmoovyog ib qho kev tswj hwm cov protein ib txwm muaj nyob rau hauv tib neeg lub hlwb, thaum xub thawj pom rau nws lub luag haujlwm hauv cell voj voog ntes. p21 peptides, piv txwv li, yog luv luv amino acid chains -synthesized los ntawm biotechnology los yog enzymatic hydrolysis- uas khaws cov chaw ua haujlwm tseem ceeb ntawm cov protein qub. Kev lag luam muaj p21 peptide hmoov yog feem ntau nkag rau hauvib daim ntawv lyophilized (khov-qhuav) daim ntawv, ua kom yooj yim ntawm kev khaws cia thiab siv.

Piv nrog rau cov protein tsis zoo, cov me me no -cov peptides molecule muaj ntau dua bioavailability thiab yog yooj yim absorbed los ntawm txoj hnyuv. Cov yam ntxwv no ua haujlwm p21 peptide hmoov ua ib tus neeg sib tw muaj txiaj ntsig rau kev siv ua zaub mov ntxiv.

1. Kev them nyiaj yug rau Cell Cycle Regulation
Qhov kev ua haujlwm classic tshaj plaws ntawm p21 peptide yog nws txoj kev koom tes hauv lub voj voog ntawm tes "braking" mechanism. Thaum DNA cellular puas los yog nyob rau hauv kev ntxhov siab, txoj kev p21 yog qhib, ib ntus tso tseg cell faib mus yuav lub sij hawm kho. Exogenous supplementation ntawm p21 peptides tuaj yeem pab cov txheej txheem no, pab tswj cov genomic stability.

Los ntawm qhov kev xav ntawm molecular, p21 feem ntau siv nws cov teebmeem los ntawm inhibiting cov haujlwm ntawm cyclin-CDK complexes. Cov txheej txheem no tseem ceeb heev rau kev tiv thaiv cov hlwb puas los ntawm kev faib tawm ntawm lub sijhawm tsis tsim nyog.

2. Txhawb nqa Senescent Cell Clearance

Raws li peb muaj hnub nyoog, qee lub hlwb nkag mus rau hauv lub xeev tsis tuaj yeem rov qab los ntawm kev raug ntes loj heev-paub tias yog "senescence"- thiab tso tawm cov teeb meem inflammatory. Cov kev tshawb fawb qhia tias p21 muaj feem cuam tshuam nrog senescent phenotype. Kev ua haujlwm nruab nrab ntawm p21 pab txheeb xyuas thiab tshem tawm cov "zombie hlwb," yog li ncua kev poob ntawm cov ntaub so ntswg ua haujlwm.

3. Kev pab kho DNA
Los ntawm kev tso tseg txoj kev loj hlob ntawm lub voj voog ntawm tes, p21 peptides tsim lub qhov rais tseem ceeb ntawm lub sijhawm rau DNA kev puas tsuaj. Qhov no yog qhov tseem ceeb tshwj xeeb rau cov hlwb uas nquag raug rau ib puag ncig kev ntxhov siab xws li oxidative kev nyuaj siab lossis hluav taws xob ultraviolet. Tsis zoo li cov tshuaj antioxidants, p21 peptides tsis ncaj qha rau cov dawb radicals; Hloov chaw, lawv siv lawv cov kev tiv thaiv los ntawm kev hloov pauv txoj hmoo ntawm cellular kev txiav txim siab.

Tsis tas li ntawd, p21 cuam tshuam nrog Proliferating Cell Nuclear Antigen (PCNA), yog li cuam tshuam ncaj qha rau kev ncaj ncees ntawm DNA replication thiab kho. Qhov kev tswj xyuas dual no ua rau nws muaj qhov tshwj xeeb zoo hauv kev tswj hwm genomic kev ncaj ncees.

4. Muaj peev xwm tiv thaiv - Cov teebmeem inflammatory

Qee qhov kev soj ntsuam soj ntsuam qhia tau hais tias p21 peptide tuaj yeem txo qis kev qhia ntawm qee yam pro- mob cytokines. Txawm hais tias cov txheej txheem hauv qab no tseem tsis tau piav qhia meej, tus yam ntxwv no qhia txog nws qhov muaj peev xwm rau kev tshawb nrhiav cov kab mob uas cuam tshuam nrog kev mob qis qis - qib o, xws li metabolic syndrome.

Cov lus hauv qab no qhia txog cov txiaj ntsig muaj peev xwm, lub zog ntawm cov pov thawj, thiab kev siv p21 peptide hmoov nyob rau ntau qhov xwm txheej kev noj qab haus huv:

Txawm hais tias p21 peptide theoretically muab ntau cov txiaj ntsig, cov ntsiab lus hauv qab no yuav tsum tau ceev faj:

1. Dose Dependence:p21 ua haujlwm ob qho tib si ua cov qog nqaij hlav thiab ua cov protein uas tau hais tawm hauv qee cov qog nqaij hlav cancer. Supplementation dosages yuav tsum tau tswj kom meej; theem kev ua si uas siab dhau lossis qis dhau yuav ua rau muaj kev pheej hmoo uas tsis tuaj yeem kwv yees. Tam sim no muaj cov khoom lag luam feem ntau pom zoo pib nrog kev noj tshuaj txhua hnub10 mg, nrog kev hloov maj mam ua raws li tus kheej cov lus teb thiab kam rau ua.
2. Tus kheej Variability:Cov xwm txheej xws li hnub nyoog, kev noj qab haus huv hauv qab, thiab keeb kwm ntawm caj ces tuaj yeem cuam tshuam li cas p21 txoj hauv kev teb. Cov tib neeg uas muaj kev hloov pauv p53 lossis cov neeg uas muaj keeb kwm mob qog noj ntshav yuav tsum tau ceev faj tshwj xeeb.
3. Cov tshuaj sib cuam tshuam:Cov tib neeg tam sim no tab tom siv tshuaj khomob (tshwj xeeb yog cov neeg ua haujlwm tsom mus rau lub voj voog ntawm tes, xws li paclitaxel lossis cisplatin) lossis kev kho tshuaj tiv thaiv kab mob yuav tsum zam tus kheej - noj tshuaj nrog p21 peptide los tiv thaiv kev cuam tshuam nrog lawv cov txheej txheem kho mob.
4. Purity thiab khoom:Qhov zoo ntawm cov khoom lag luam peptide hmoov sib txawv heev. High- cov khoom lag luam zoo yuav tsum tau nrog cov ntaub ntawv txheeb xyuas hauv qab no: Purity (Ntau dua lossis sib npaug li 95%), Endotoxin Levels (tsawg dua lossis sib npaug rau 1 EU / mg), Cov Hlau Hnyav Hnyav, thiab Microbial Limits. Qhov zoo tshaj plaws,Certificate of Analysis (COA)yuav tsum tau muab.
5. Cia ruaj khov:Peptide hmoov yog hygroscopic (nws yooj yim rau absorbing noo noo) thiab rhiab rau qhov kub thiab txias. Cov pob uas tsis tau qhib yuav tsum muab cia rau hauv lub freezer ntawm -20℃lossis hauv lub tub yees ntawm 2-8 degree. Thaum qhib, nws raug nquahu kom aliquot hmoov rau hauv me me rauqhuav ciakom tsis txhob rov khov dua -thaw cycles, thiab kom haus cov khoom hauv 1-2 lub hlis.