Yuav ua li cas cais cov lysosomes los ntawm peroxisomes centrifugation

Kev Taw Qhia Txog Lysosomes thiab Peroxisomes

Lysosomes thiab peroxisomes yog ob lub cell organelles sib cais nrog cov haujlwm sib txawv uas ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm ntawm lub cev thiab homeostasis. Lysosomes yog cov organelles uas khi nrog cov enzymes zom zaub mov uas muaj lub luag haujlwm rau kev rhuav tshem cov khoom pov tseg ntawm lub cev, cov khoom txawv teb chaws, thiab cov kab mob. Peroxisomes, ntawm qhov tod tes, koom nrog ntau yam kev hloov pauv metabolic, tshwj xeeb tshaj yog cov uas cuam tshuam nrog kev tshem tawm cov tshuaj lom thiab cov metabolism lipid. Txhawm rau kawm cov organelles no sib cais, ib txoj hauv kev siv feem ntau yog centrifugation. Hauv tsab xov xwm no, peb yuav tshawb nrhiav seb centrifugation tuaj yeem siv li cas los cais lysosomes los ntawm peroxisomes.

Cov Ntsiab Cai thiab Cov Txuj Ci ntawm Centrifugation

Kev centrifugation yog ib txoj kev siv zog heev uas siv los cais cov khoom sib txawv ntawm cov khoom sib xyaw ua ke raws li lawv qhov loj me, qhov ceev, thiab cov duab. Nws ua haujlwm raws li cov ntsiab cai ntawm kev tso dej, qhov twg cov khoom hnyav dua yuav poob qis sai dua nyob rau hauv kev cuam tshuam ntawm lub zog centrifugal. Txhawm rau cais lysosomes ntawm peroxisomes, ntau txoj kev centrifugation, xws li kev sib txawv centrifugation thiab kev sib txawv ntawm qhov ceev, tuaj yeem siv tau.

Kev Centrifugation Sib Txawv: Kev Rho Tawm Lysosomes thiab Peroxisomes

Kev sib txawv centrifugation suav nrog ntau cov kauj ruam centrifugation ntawm ntau qhov ceev thiab ntev kom cais cov organelles raws li lawv qhov ceev. Nov yog li cas nws tuaj yeem siv los rho tawm lysosomes thiab peroxisomes:

Kauj Ruam 1: Kev Sib Koom Ua Ke

Kauj ruam thawj zaug yog maj mam rhuav cov cell thiab tso lawv cov ntsiab lus tawm siv cov txheej txheem homogenization. Qhov no tuaj yeem ua tiav los ntawm sonicating lossis siv cov khoom siv homogenizer tshwj xeeb. Cov khoom sib xyaw ua ke hu ua homogenate.

Kauj Ruam 2: Kev Centrifugation Ceev Qis

Cov homogenate ces raug centrifugation qeeb qeeb (kwv yees li 1,000-2,000 xg) rau lub sijhawm luv luv. Cov kauj ruam no pab cais cov cell khib nyiab loj dua thiab cov nuclear fraction ntawm lwm cov organelles uas muaj nyob hauv homogenate.

Kauj Ruam 3: Centrifugation Ceev Nruab Nrab

Cov supernatant uas tau los ntawm cov kauj ruam centrifugation qis-ceev yog raug rau qhov nruab nrab-ceev centrifugation (kwv yees li 10,000 xg) rau cov organelles hnyav xws li lysosomes thiab peroxisomes. Cov kauj ruam no ua rau muaj cov pellet uas muaj cov organelles no.

Kauj Ruam 4: Ntxuav thiab Rov Ua Dua

Cov pellet tau txais hauv cov kauj ruam dhau los yog ntxuav nrog cov tshuaj buffered tsim nyog thiab tom qab ntawd rov ua kom tau txais cov lysosome purified thiab peroxisome fraction.

Kev Siv Centrifugation Gradient: Txhim Kho Qhov Kev Sib Cais

Kev siv density gradient centrifugation yog ib txoj kev siv centrifugation siab heev uas ua rau kom muaj kev ntxuav thiab ua kom zoo dua ntawm lysosomes thiab peroxisomes. Hauv txoj kev no, kev siv density gradient yog tsim los ntawm kev siv cov tshuaj gradient xws li sucrose lossis iodixanol. Nov yog li cas nws tuaj yeem siv tau:

Kauj Ruam 1: Kev Npaj ntawm Qhov Ceev Gradient

Ib qho nruab nrab ntawm qhov ceev, xws li sucrose, yog npaj rau hauv lub raj centrifuge, nrog rau ntau qhov ceev sib txawv ntawm sab saud mus rau hauv qab lossis hauv qab mus rau sab saud. Cov khoom sib xyaw thiab qhov ceev ntawm cov nruab nrab gradient raug xaiv ua tib zoo, kom ntseeg tau tias nws sib dua li peroxisomes tab sis ntom dua li lysosomes.

Kauj Ruam 2: Txheej Txheem Qauv

Cov lysosome thiab peroxisome uas tau rov ua dua tshiab tau los ntawm kev sib txawv centrifugation tau ua tib zoo muab tso rau saum cov khoom siv density gradient.

Kauj Ruam 3: Centrifugation

Tom qab ntawd lub raj raug rau kev centrifugation ceev ceev (ultracentrifugation) kom cais cov lysosomes thiab peroxisomes raws li lawv cov buoyant densities. Thaum lub sijhawm centrifugation, cov organelles txav mus los ntawm qhov nruab nrab kom txog thaum lawv mus txog thaj chaw uas lawv cov buoyant density phim qhov ceev ntawm qhov nruab nrab ib puag ncig, tsim cov kab sib txawv.

Kev Tshawb Fawb thiab Cov Ntawv Thov Ntxiv

Tom qab kev sib cais ua tiav, cov lysosome thiab peroxisome fractions tau txais tuaj yeem tshuaj xyuas ntxiv siv ntau txoj kev los ntsuas lawv qhov huv, qhov loj me, cov khoom sib xyaw, thiab cov khoom ua haujlwm. Cov txheej txheem xws li electron microscopy, immunocytochemistry, thiab enzyme activity assays tuaj yeem muab cov kev nkag siab zoo rau cov fractions cais tawm, lees paub lawv tus kheej thiab kev huv.

Dhau ntawm lub hom phiaj tshawb fawb, lub peev xwm los cais lysosomes thiab peroxisomes los ntawm centrifugation muaj daim ntawv thov hauv kev kuaj mob, kev tsim tshuaj, thiab kev kho mob. Los ntawm kev nkag siab zoo dua txog cov haujlwm ntawm cov organelles no, cov kws tshawb fawb tuaj yeem tshawb nrhiav cov tswv yim kho mob tshiab uas tsom mus rau lysosomal lossis peroxisomal kab mob, xws li lysosomal cia kab mob lossis peroxisome biogenesis kab mob.

Xaus lus, kev sib cais ntawm lysosomes los ntawm peroxisomes siv cov txheej txheem centrifugation, zoo li differential centrifugation thiab density gradient centrifugation, yog ib txoj hauv kev tseem ceeb hauv kev tshawb fawb txog cell biology. Cov txheej txheem no ua rau cov kws tshawb fawb tau txais cov feem pua ​​​​​​ntawm lysosomes thiab peroxisomes, pab kom nkag siab txog lawv lub luag haujlwm, txoj kev metabolic, thiab kev kho mob rau cov kab mob cuam tshuam.