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MRC-9
Tissue
胎兒肺
Synonyms
MRC9, Medical Research Council cell strain-9

Documents

MRC-9

Cell line · Product number 300394

The MRC-9 cell line is a human diploid fibroblast strain derived from the lungs of a White female fetus at 15 weeks gestation. It was established for long...

US$395.00excl. tax and shipping
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  • CoA
1

01General information

Description

MRC-9 細胞系是一種源自妊娠 15 週白人女性胎兒肺部的二倍體人類成纖維細胞株。該細胞系是為在生物研究、疫苗生產及診斷病毒學領域中長期使用而建立的。這些細胞具有貼壁生長特性,並在連續傳代過程中始終維持穩定的二倍體核型。 重要的是,MRC-9 細胞具有正常的染色體特徵,且在典型條件下不具致瘤性。然而,在半固體培養基中進行測試時,該細胞已顯示出致瘤性,但在植入免疫抑制小鼠體內時則未見此現象。

MRC-9 細胞已被廣泛應用於病毒易感性研究,顯示對小兒麻痺病毒、腺病毒、風疹病毒及巨細胞病毒等多種病毒具有廣泛的易感性。這些細胞在病毒學研究及疫苗開發方面具有特別重要的價值。 雖然與 MRC-5 等其他人類成纖維細胞株相比,MRC-9 細胞的增殖速率較慢,但仍能進行相當數量的細胞倍增,據報導最多可達 46 次倍增。

Tissue
胎兒肺
Synonyms
  • MRC9
  • Medical Research Council cell strain-9

02Classification

Organism
Human
Sex
Female
Growth properties
Adherent
Biosafety level
1

03Characteristics

Cell type
成纖維細胞

04Identifiers

Citation
MRC-9(Cytion 型號 300394)
NCBI TaxID
9606
Cellosaurus
CVCL_2629

05Handling and culture

Culture medium
EMEM(MEM Eagle),含 2 mM L-谷氨醯胺,含 2.2 g/L NaHCO₃,含 EBSS(Cytion 產品編號 820100a)
Incubation atmosphere

37°C,5% CO₂,加濕環境。

Supplements
在培養基中加入 10% FBS 和 1% NEAA
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。
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
胎兒