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MKN-7
Tissue
胃
Disease
胃管狀腺癌
Metastatic site
淋巴結
Synonyms
MKN-7, MKN 7

Documents

MKN-7

Cell line · Product number 305104

The MKN-7 cell line is a well-characterized human gastric carcinoma cell line, established from a well-differentiated tubular adenocarcinoma. This cell li...

US$650.00excl. tax and shipping
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Lot
Recommended (freshest lot)
  • CoA
1

01General information

Description

MKN-7 細胞系是一種特徵明確的人類胃癌細胞系,源自一例分化良好的管狀腺癌。該細胞系屬於更廣泛的胃癌細胞系系列的一部分,該系列旨在研究胃癌的多樣化組織學及生物學行為。 已知 MKN-7 細胞呈現出顯示腸道分化的形態學特徵,例如細胞極性以及具有核心絲的微絨毛。這些特徵通常可在體外培養及裸鼠異種移植模型中觀察到,儘管在長期培養條件下,分化程度可能會隨時間推移而降低。

就功能特徵而言,MKN-7 細胞展現出較低的纖溶活性,且主要取決於纖溶酶原。相較於其他胃癌細胞系(如 MKN-1 和 MKN-28),其纖溶活性顯著較低,後兩者則展現出較高的纖溶活性。 MKN-7 細胞的低纖溶活性,可能對探究纖溶作用在癌症進展中的角色具有重要意義,特別是與胃腫瘤的侵襲性及轉移潛力相關的研究。 此外,MKN-7 細胞系與其他胃癌細胞系一同被用於研究血小板活化活性,儘管 MKN-7 在這方面的活性水平也相對較低。這表明其在常與侵襲性腫瘤表型相關的高凝狀態中,所扮演的角色較為有限。

Tissue
胃
Disease
胃管狀腺癌
Metastatic site
淋巴結
Synonyms
  • MKN-7
  • MKN 7

02Classification

Organism
Human
Sex
Female
Growth properties
Adherent
Biosafety level
1

03Characteristics

Morphology
上皮性

04Identifiers

Citation
MKN-7(Cytion 型號 305104)
NCBI TaxID
9606
Cellosaurus
CVCL_1417

05Handling and culture

Culture medium
RPMI 1640,含 2.0 mM 穩定谷氨醯胺,含 2.0 g/L NaHCO₃(Cytion 產品編號 820700a)
Incubation atmosphere

37°C,5% CO₂,加濕環境。

Supplements
在培養基中加入 10% 的胎牛血清(FBS)
Dissociation reagent
Accutase
Subculturing
從貼壁細胞中移除舊培養基,並用不含鈣和鎂的PBS洗滌細胞。T25培養瓶使用3-5毫升PBS,T75培養瓶則使用5-10毫升。 接著,用 Accutase 完全覆蓋細胞,T25 培養瓶使用 1–2 毫升,T75 培養瓶則使用 2.5 毫升。將細胞於室溫下孵育 8–10 分鐘,使其脫附。 孵育後,將細胞與 10 毫升培養基輕柔混合以使其重新懸浮,然後以 300xg 離心 3 分鐘。棄去上清液,將細胞重新懸浮於新鮮培養基中,並轉移至已預先加入新鮮培養基的新培養瓶中。
Fluid renewal
每週 2 至 3 次
Thawing and culturing
  1. Confirm that the vial remains deeply frozen upon delivery, as cells are shipped on dry ice to maintain optimal temperatures during transit.

  2. Upon receipt, either store the cryovial immediately at temperatures below -150°C to ensure the preservation of cellular integrity, or proceed to step 3 if immediate culturing is required.

  3. For immediate culturing, swiftly thaw the vial by immersing it in a 37°C water bath with clean water and an antimicrobial agent, agitating gently for 40-60 seconds until a small ice clump remains.

  4. Perform all subsequent steps under sterile conditions in a flow hood, disinfecting the cryovial with 70% ethanol before opening.

  5. Carefully open the disinfected vial and transfer the cell suspension into a 15 ml centrifuge tube containing 8 ml of room-temperature culture medium, mixing gently.

  6. Centrifuge the mixture at 300 x g for 3 minutes to separate the cells and carefully discard the supernatant containing residual freezing medium.

  7. Gently resuspend the cell pellet in 10 ml of fresh culture medium. For adherent cells, divide the suspension between two T25 culture flasks; for suspension cultures, transfer all the medium into one T25 flask to promote effective cell interaction and growth.

  8. Adhere to established subculture protocols for continued growth and maintenance of the cell line, ensuring reliable experimental outcomes.

06Quality control and cryopreservation

Sterility

透過基於 PCR 的檢測及基於發光原理的支原體檢測方法,排除支原體污染的可能性。

為確保無細菌、真菌或酵母菌污染,每日均會對細胞培養物進行目視檢查。

Freeze medium
作為冷凍保存培養基,我們使用完全生長培養基(含 FBS)+ 10% DMSO 以確保解凍後的存活率,或使用 CM-1 (Cytion 型號 800100),該培養基含有經優化的滲透保護劑和代謝穩定劑,可提升細胞恢復率並減輕冷凍誘導的壓力。
Storage conditions

若需長期保存,請將試管置於溫度約為 −150 至 −196 °C 的氣相液氮中。僅在轉移至液氮之前,可將試管暫時存放於 −80 °C 環境中,作為短期過渡步驟。

Shipping conditions

冷凍保存的細胞系會以乾冰冷藏,並裝於經驗證的隔熱包裝中,包裝內含有足夠的冷媒,以確保在運輸過程中溫度維持在約 −78 °C。收到貨物後,請立即檢查容器,並盡快將試管轉移至適當的儲存場所。

07Donor

Donor age
39年
Ethnicity
亞洲