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NSO
Tissue
漿細胞骨髓瘤、雜交瘤融合夥伴
Disease
小鼠多發性骨髓瘤
Synonyms
NSO, NS/0, NS/O, NS-0, P3-NS0, P3/NS0, P3/NSO

Documents

NSO

Cell line · Product number 400109

NS0 is a murine myeloma cell line derived from a non-secreting variant of a mouse plasmacytoma. It is widely used in biotechnology and pharmaceutical manu...

US$395.00excl. tax and shipping
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Lot
Recommended (freshest lot)
  • CoA
1

01General information

Description

NS0 是一種源自小鼠漿細胞瘤非分泌型變異株的小鼠骨髓瘤細胞系。該細胞系廣泛應用於生物技術及製藥產業,用於生產重組單克隆抗體及其他治療性蛋白質。 NS0 細胞已適應懸浮培養,並能在無血清、化學定義的培養基中生長,因此非常適合在現行優良製造規範(cGMP)條件下進行大規模生物製程。 該細胞系以其高轉染效率及能實現高蛋白質表達產率而著稱,特別是在與強效哺乳動物表達載體及基於甲氨蝶呤(MTX)篩選等放大系統結合使用時。

儘管在蛋白質生產方面用途廣泛,但 NS0 細胞源自小鼠,這帶來了一些限制,包括表達蛋白質上存在非人類的糖基化模式。這些差異可能影響免疫原性和藥代動力學,這在臨床應用中是需要考量的因素。 儘管如此,源自 NS0 的產品已獲得監管機構批准並投入臨床使用,這凸顯了該細胞系的穩健性與可擴展性。NS0 細胞不具致瘤性,且不表達內源性免疫球蛋白,從而降低了在重組抗體生產流程中受到天然抗體序列污染的風險。

Tissue
漿細胞骨髓瘤、雜交瘤融合夥伴
Disease
小鼠多發性骨髓瘤
Synonyms
  • NSO
  • NS/0
  • NS/O
  • NS-0
  • P3-NS0
  • P3/NS0
  • P3/NSO

02Classification

Organism
Mouse
Sex
Female
Growth properties
Suspension
Biosafety level
1

03Characteristics

Cell type
淋巴母細胞樣

04Identifiers

Citation
NSO(Cytion 型號 400109)
NCBI TaxID
10090
Cellosaurus
CVCL_3940

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)
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。