Video: Puas yog mitosis tshwm sim nyob rau hauv cov qog nqaij hlav cancer?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cancer yog qhov tseem ceeb ntawm tus kab mob mitosis cov tsos mob - qhov 'checkpoints' li niaj zaus mob mitosis yog ignored los yog overriden los ntawm mob qog noj ntshav . Cancer pib thaum ib leeg ntawm tes hloov, los yog hloov los ntawm ib txwm ntawm tes rau a mob qog noj ntshav.
Tsuas yog li ntawd, mitosis cuam tshuam li cas rau mob qog noj ntshav?
Cancer : mitosis cov tsos mob tawm ntawm kev tswj Mitosis yog tswj tau zoo los ntawm cov noob hauv txhua lub cell. Cov no yog mob qog noj ntshav hlwb. Lawv txuas ntxiv rov ua dua tshiab yam tsis muaj kev tswj hwm lub cev uas ib txwm muaj. Cancer cov hlwb yuav tsim cov qog, los yog qog, uas ua rau cov ntaub so ntswg puas.
Yuav ua li cas lub cev ib txwm dhau los ua qog nqaij hlav cancer? Cancer yog unchecked ntawm tes kev loj hlob. Kev hloov pauv hauv noob tau ua mob qog noj ntshav los ntawm kev nrawm ntawm tes faib tus nqi lossis txwv li qub tswj ntawm qhov system, xws li ntawm tes raug kaw los yog ua haujlwm ntawm tes tuag. Raws li ib tug loj ntawm cancer hlwb hlob, nws tau hloov mus ua qog.
Ua li no, nyob rau theem twg ntawm mitosis mob cancer tshwm sim?
Cov cell nrog DNA tsis tu ncua txuas ntxiv mus rau S theem; cov hlwb uas puas DNA uas tsis tuaj yeem kho tau raug ntes thiab "ua tua tus kheej" los ntawm apoptosis, lossis programmed cell tuag. Qhov thib ob qhov kev txheeb xyuas tshwm sim ntawm theem G2 tom qab kev sib txuas ntawm DNA hauv S theem tab sis ua ntej cell faib hauv M Phase.
Puas yog mob qog noj ntshav lossis meiosis?
Cancer Cell Division feem ntau, mob qog noj ntshav yog tus kab mob mob mitosis . Hauv qhov no, cov chaw kuaj xyuas ib txwm uas tswj hwm mitosis cov tsos mob yog overridden los ntawm cov qog nqaij hlav cancer.
Pom zoo:
Yuav ua li cas feem pua ntawm cov qog nqaij hlav qog nqaij hlav qog noj ntshav?
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