Video: Hom cell faib li cas tshwm sim hauv cov qog nqaij hlav cancer?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
mitosis cov tsos mob
Hais txog qhov no, cov qog nqaij hlav cancer mus dhau mitosis?
Cancer : mitosis cov tsos mob tawm ntawm kev tswj Yog tias tshwm sim hauv ib leeg xwb ntawm tes , nws tuaj yeem rov tsim nws tus kheej los ua qhov tshiab hlwb uas tseem tsis tau tswj. Cov no yog cov qog nqaij hlav cancer . Lawv txuas ntxiv rov ua dua tshiab yam tsis muaj kev tswj hwm qhov qub hlwb muaj. Ntau tus txwv qhov kev loj hlob teeb liab rau hom ntawd ntawm tes.
Qhov thib ob, nyob rau theem dab tsi ntawm mitosis mob qog noj ntshav tshwm sim? Cov cell nrog DNA tsis tu ncua txuas ntxiv mus rau S theem; cov cell nrog DNA puas uas tsis tuaj yeem kho tau raug ntes thiab "tua tus kheej" los ntawm apoptosis, lossis programmed cell tuag. Qhov thib ob qhov kev txheeb xyuas tshwm sim ntawm G2 theem tom qab kev sib txuas ntawm DNA hauv S theem tab sis ua ntej cell faib hauv M theem.
Ib sab saum toj no, mitosis txawv li cas hauv cov qog nqaij hlav cancer?
Cancer yeej yog ib yam kab mob ntawm mitosis cov tsos mob - qhov 'checkpoints' li niaj zaus mitosis cov tsos mob yog ignored los yog overriden los ntawm mob qog noj ntshav . Cancer pib thaum ib leeg ntawm tes yog hloov pauv, lossis hloov pauv los ntawm ib txwm muaj ntawm tes rau a mob qog noj ntshav.
Kev mob qog noj ntshav cuam tshuam li cas ntawm kev faib cell?
Feem ntau, mob qog noj ntshav tshuaj ua haujlwm los ntawm kev puas tsuaj RNA lossis DNA uas qhia rau ntawm tes yuav ua li cas luam nws tus kheej hauv faib . Yog tias cov qog nqaij hlav cancer tsis muaj peev xwm faib, lawv tuag. Qhov sai dua ntawd cov qog nqaij hlav cancer faib, qhov feem ntau nws yog kws kho mob yuav tua tus hlwb , ua rau cov qog ua kom nqaim.
Pom zoo:
Yuav ua li cas feem pua ntawm cov qog nqaij hlav qog nqaij hlav qog noj ntshav?
Kev Kho Mob: Kev kho hluav taws xob
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