2025-03-27 11:17:56 來(lái)源:新華網(wǎng)
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學(xué)習(xí)快評(píng)丨qibao666888 研??(yan)究??(jiu)團(tuán)?(tuan)隊(duì)??(dui)通??(tong)過(guò)??(guo)基??(ji)因??(yin)編??(bian)輯??(ji)技??(ji)術(shù)?(shu)??,在??(zai)實(shí)??(shi)驗(yàn)??(yan)室?(shi)培??(pei)養(yǎng)??(yang)的??(de)人??(ren)源??(yuan)小??(xiao)膠??(jiao)質(zhì)??(zhi)細(xì)??(xi)胞??(bao)中??(zhong)敲??(qiao)除?(chu)MEF2C基?(ji)因??(yin)?。??失??(shi)去??(qu)這??(zhe)個(gè)??(ge)“車?(che)速??(su)控??(kong)制??(zhi)系??(xi)統(tǒng)??(tong)核??(he)心??(xin)元??(yuan)件??(jian)”的?(de)細(xì)??(xi)胞??(bao)隨??(sui)之??(zhi)陷?(xian)入??(ru)混??(hun)亂??(luan)??,負(fù)??(fu)責(zé)??(ze)抑??(yi)制?(zhi)過(guò)??(guo)度?(du)反??(fan)應(yīng)??(ying)的??(de)p21蛋??(dan)白??(bai)產(chǎn)?(chan)量??(liang)銳??(rui)減??(jian)??,而??(er)本??(ben)該??(gai)被??(bei)約??(yue)束??(shu)的??(de)CDK2激??(ji)酶??(mei)卻??(que)異??(yi)常??(chang)活??(huo)躍?(yue)??,這??(zhe)就??(jiu)好??(hao)比??(bi)控??(kong)速??(su)系??(xi)統(tǒng)??(tong)的??(de)關(guān)??(guan)鍵??(jian)制??(zhi)動(dòng)??(dong)環(huán)??(huan)節(jié)?(jie)失??(shi)效??(xiao)?。更??(geng)糟??(zao)的??(de)是??(shi)??,CDK2的?(de)過(guò)?(guo)度?(du)活??(huo)躍??(yue)直??(zhi)接??(jie)摧??(cui)毀??(hui)了??(le)RB蛋??(dan)白??(bai)?。這??(zhe)個(gè)??(ge)如?(ru)同??(tong)汽??(qi)車??(che)“安??(an)全??(quan)鎖??(suo)”的??(de)關(guān)??(guan)鍵??(jian)分??(fen)子??(zi)一??(yi)旦??(dan)缺??(que)失??(shi)??,就??(jiu)會(huì)??(hui)在??(zai)小??(xiao)膠??(jiao)質(zhì)??(zhi)細(xì)??(xi)胞??(bao)被?(bei)激??(ji)活??(huo)時(shí)??(shi)徹??(che)底??(di)釋??(shi)放??(fang)NF-κB信??(xin)號(hào)??(hao)通??(tong)路??(lu)??,繼??(ji)而??(er)引??(yin)發(fā)??(fa)TNF-α、IL-6等??(deng)炎??(yan)癥??(zheng)因??(yin)子??(zi)的??(de)大?(da)規(guī)?(gui)模??(mo)爆??(bao)發(fā)??(fa)??,如??(ru)同??(tong)自??(zi)動(dòng)??(dong)駕??(jia)駛??(shi)汽?(qi)車??(che)在??(zai)速??(su)控??(kong)系??(xi)統(tǒng)??(tong)失??(shi)靈??(ling)時(shí)??(shi)進(jìn)??(jin)行??(xing)加??(jia)速??(su)??,會(huì)??(hui)橫?(heng)沖??(chong)直??(zhi)撞??(zhuang)造??(zao)成??(cheng)嚴(yán)??(yan)重??(zhong)破??(po)壞??(huai)?。 重??(zhong)新??(xin)定??(ding)義??(yi)腦??(nao)疾??(ji)病??(bing)治??(zhi)療??(liao)范??(fan)式?(shi)。