培養(yǎng)方法
傳代方法 將舊培養(yǎng)液吸除,PBS清洗兩遍后,加入6mL(/100mm皿)胰酶,在顯微鏡下觀察,期間禁止搖晃培養(yǎng)皿,細(xì)胞剛有脫落時,則吸除大部分胰酶,留約0.5mL,移至培養(yǎng)箱消化,約2min取出。傳代用12mL CM1-1培養(yǎng)液終止消化,輕輕吹打均勻細(xì)胞,后可分3~6皿培養(yǎng);
生長條件 37℃,5%CO2,CM1-1培養(yǎng)液。CM1-1培養(yǎng)液:90%DMEM-H+10%FBS。DMEM-H:DMEM高糖培養(yǎng)液,含谷氨酰胺,含丙酮酸鈉。
存儲條件 凍存則用6mL凍存液(90%FBS+10%DMSO)終止消化,吹打均勻,分為6支凍存管,用程序降溫盒于-80℃凍存,過夜轉(zhuǎn)移至液氮中保存。
|
產(chǎn)品名稱
|
規(guī)格
|
貨號
|
|
氨甲蝶呤
|
10mg
|
BH-X020031
|
我司常期代理ATCC Acris abcam cst Biorbyt santa Novus sigma lifespan NEB roche ABI R&D millipore BD Qiagen Cayman Jackson Life GeneTex Bio-Rad DSHB tocris peprotech 等品牌;部分產(chǎn)品現(xiàn)貨,超低比價,貨期短,價格優(yōu),公司產(chǎn)品僅用于科研售后齊全。
培養(yǎng)操作步驟 :
1.用蓋片鑷將蓋玻片自75%乙醇中取出,用無菌絲綢布擦拭干凈,不要用紗布;
2.將蓋玻片輕輕放入6孔培養(yǎng)板(每孔一片)或培養(yǎng)皿中(每個平皿可放???2-3片);
3.在距離紫外燈直射范圍內(nèi)20-30 厘米處照射2-3小時;
4.將經(jīng)過計數(shù)的細(xì)胞懸浮液移入培養(yǎng)板中,使蓋玻片完全浸在培養(yǎng)液中;
5.將培養(yǎng)板在5% CO2水浴孵箱中37℃孵育2-3天,當(dāng)貼壁細(xì)胞生長至覆蓋培養(yǎng)板底部2/3面積時,將培養(yǎng)板取出,用蓋片鑷輕輕取出蓋玻片,用蒸餾水漂洗后即可進(jìn)行快速固定以及細(xì)胞化學(xué)檢測。

細(xì)胞培養(yǎng)方法:
1、細(xì)胞傳代:細(xì)胞密度達(dá)到80-90%時即可傳代
①棄去培養(yǎng)上清,用PBS或生理鹽水清洗1-2次;
②加入2ml0.25%胰酶(T25瓶),使胰酶覆蓋整個瓶或皿,蓋好放入培養(yǎng)箱消化;
③1-2min后,顯微鏡下觀察細(xì)胞,若大部分細(xì)胞回縮且有少量細(xì)胞脫落,輕輕吹打下確認(rèn)消化情況后加入完全培養(yǎng)基終止消化;若細(xì)胞還是貼壁,放回培養(yǎng)箱繼續(xù)消化至可以輕輕吹打下為止;
④將細(xì)胞懸液1000RPM左右條件下離心4min,棄上清;
⑤用新鮮培養(yǎng)基重懸后加入培養(yǎng)瓶或皿中,T25培養(yǎng)瓶加6-8ml培養(yǎng)基;
⑥懸浮細(xì)胞直接離心收集,細(xì)胞沉淀重懸后分到新培養(yǎng)瓶中。
2、細(xì)胞復(fù)蘇:
①將凍存管在37℃溫水中快速搖晃融化,時間1min左右,加入4-5ml培養(yǎng)基混勻。
②在1000RPM左右條件下離心4min,棄上清,加1-2ml培養(yǎng)基吹勻,將細(xì)胞懸液加入培養(yǎng)瓶中,補加適量培養(yǎng)基。
3、細(xì)胞凍存:待細(xì)胞生長狀態(tài)良好時進(jìn)行細(xì)胞凍存保種
①棄去培養(yǎng)上清,用PBS或生理鹽水清洗1-2次,加入1mL 0.25%胰蛋白酶(T25瓶)
②1-2min后,顯微鏡下觀察細(xì)胞,大部分細(xì)胞回縮且有少量細(xì)胞脫落,輕輕吹打下確認(rèn)消化情況后加入完全培養(yǎng)基終止消化;
③將細(xì)胞懸液1000RPM左右條件下離心4min,棄上清,加1ml凍存液重懸細(xì)胞;
④將凍存管放入程序降溫盒,放入-80℃冰箱,4小時后將凍存管轉(zhuǎn)入液氮罐儲存。
Isoform 2: Nucleus. Cytoplasm. Note=Localized mainly in the nucleus with minor staining in the cytoplasm.
Isoform 3: Nucleus. Cytoplasm. Note=Localized in the nucleus in most cells but found in the cytoplasm in some cells.
columnar epithelium. The condition develops as a complication in approximately 10% of patients with chronic gastroesophageal reflux disease and predisposes to the development of esophageal adenocarcinoma.
Defects in TP53 are a cause of esophageal cancer (ESCR) [MIM:133239].
Defects in TP53 are a cause of Li-Fraumeni syndrome (LFS) [MIM:151623]. LFS is an autosomal dominant familial cancer syndrome that in its classic form is defined by the existence of a proband affected by a sarcoma before 45 years with a first degree relative affected by any tumor before 45 years and another first degree relative with any tumor before 45 years or a sarcoma at any age. Other clinical definitions for LFS have been proposed (PubMed:8118819 and PubMed:8718514) and called Li-Fraumeni like syndrome (LFL). In these families affected relatives develop a diverse set of malignancies at unusually early ages. Four types of cancers account for 80% of tumors occurring in TP53 germline mutation carriers: breast cancers, soft tissue and bone sarcomas, brain tumors (astrocytomas) and adrenocortical carcinomas. Less frequent tumors include choroid plexus carcinoma or papilloma before the age of 15, rhabdomyosarcoma before the age of 5, leukemia, Wilms tumor, malignant phyllodes tumor, colorectal and gastric cancers.
Defects in TP53 are involved in head and neck squamous cell carcinomas (HNSCC)
氨甲蝶呤載脂蛋白F檢測試劑盒結(jié)晶氯化鋰 CP,97.0%β-胡蘿卜素 分析標(biāo)準(zhǔn)品
γ-谷氨?;D(zhuǎn)氨酶5檢測試劑盒結(jié)晶氯化鋰 SPD-泛酸鈣 98%
烯酰輔酶A水合酶1檢測試劑盒結(jié)晶氯化鋰 99%(以干基計,AT)葉酸 ≥97%(HPLC)
高遷移率族蛋白1檢測試劑盒結(jié)晶氯化鋰 AR,97.0%煙酸 99%
蛋白聚糖4檢測試劑盒無水化鋰 99%煙酸 分析標(biāo)準(zhǔn)品
成纖維生長因子1檢測試劑盒無水化鋰 99.9% metals basis煙酰 99%
前β高密度脂蛋白檢測試劑盒四氟酸鋰 98%煙酰 分析標(biāo)準(zhǔn)品,≥99.8%
實驗要點及說明:
1.本方法適用于貼壁細(xì)胞培養(yǎng),而不適用于懸浮細(xì)胞培養(yǎng),懸浮細(xì)胞可使用滴片法;
2.所使用的蓋玻片應(yīng)該為玻璃**,并經(jīng)過鉻酸洗液處理;
3.蓋玻片非常薄,易碎,取放蓋玻片時動作要輕;
4.如果需要更多生長狀態(tài)一致的細(xì)胞,可以使用較大的培養(yǎng)皿,但不宜過大,以避免培養(yǎng)液的浪費和增加污染機(jī)率;
5.如果細(xì)胞貼壁生長能力較差,可將蓋玻片在0.5%多聚賴氨酸溶液中浸泡5-10分鐘并自然晾干。