Skip to content
CHO-FOLR1
Tissue
卵巢
Disease
中國倉鼠卵巢細胞,非腫瘤性;經基因工程改造,可於細胞表面表達 FOLR1(葉酸受體α)

Documents

CHO-FOLR1

Cell line · Product number 305416

Disclaimer: The prices displayed for cell lines are exclusively for academic/not-for-profit customers. For commercial entitites the pr...

US$2,200.00excl. tax and shipping
Made to order
1

01General information

Description

免責聲明:所顯示的細胞系價格僅適用於學術/非營利客戶。商業機構的價格約為 6,250 歐元。
若您代表商業機構,或不確定應歸類於哪一類別,請 與我們聯繫。


CHO-FOLR1 細胞系是一種穩定的重組 CHO(中國倉鼠卵巢)細胞系,經基因工程改造後,能以中高水平表達 FOLR1 受體,每細胞約 15,000 個分子。 此細胞系採用先進的「著陸墊」技術開發,可確保 FOLR1 基因精確且可重複地整合至特定且經預先驗證的基因組位點。 FOLR1,亦稱為葉酸受體α(FRα)或 FBP,是一種 GPI 錨定膜蛋白,對葉酸具有高親和力,有助於促進葉酸轉運進入細胞。 FOLR1 在多種上皮性癌症(包括卵巢癌、乳癌及非小細胞肺癌)中顯著過度表達,使其成為癌症免疫療法(包括 CAR T 細胞療法和雙特異性抗體)的寶貴靶點。

本細胞系中 FOLR1 的表達已透過流式細胞術並使用靶標特異性抗體進行驗證,確保整個細胞群中受體密度之可靠性與一致性。

Tissue
卵巢
Disease
中國倉鼠卵巢細胞,非腫瘤性;經基因工程改造,可於細胞表面表達 FOLR1(葉酸受體α)
Applications
抗體篩選;FOLR1 標靶療法開發;抗體藥物複合體(ADC)開發;卵巢癌/肺癌研究;流式細胞術

02Classification

Organism
Chinese hamster
Sex
Female
Growth properties
Adherent and suspension
GMO status
GMO-S1
GMO status details
GMO-S1: This CHO line contains a stable FOLR1 expression construct for analyses of folate receptor binding and therapeutic targeting. This classification applies only within Germany and may differ elsewhere.
Biosafety level
1

03Characteristics

Morphology
上皮樣
Cell type
上皮細胞
Doubling time
約 14 至 16 小時

04Identifiers

Citation
CHO-FOLR1(Cytion 型號 305416)
NCBI TaxID
10029
Cellosaurus
CVCL_A8W5

05Expression and susceptibility

Receptors expressed
FOLR1(葉酸受體α(FRα)或 FBP)

06Handling and culture

Culture medium

適用於貼壁培養:DMEM:Ham's F12(1:1),重量比:3.1 g/L 葡萄糖,重量比:2.5 mM L-谷氨醯胺,重量比:15 mM HEPES, 0.5 mM 丙酮酸鈉,1.2 g/L NaHCO₃(Cytion 產品編號 820400a)

懸浮培養:CHO 生長培養基 A(來自 InSCREENeX;InSCREENeX 型號 INS-ME-1039)

Incubation atmosphere

37°C,5% CO₂,加濕環境。

Supplements
對於貼壁培養:在培養基中加入 5% FBS。加入 Geneticin(G418-Sulfat),使最終濃度達到 0.5 mg/mL。
Dissociation reagent
適用於貼壁培養:胰蛋白酶-EDTA
Subculturing
針對常規貼壁細胞培養:將貼壁細胞中的舊培養基吸出,並用PBS洗滌以去除殘留的培養基。吸出PBS後,根據培養容器大小加入適量胰蛋白酶/EDTA溶液(例如:T25燒瓶為1毫升, T75 燒瓶則需 3 毫升),並於室溫或 37°C 下孵育 5-10 分鐘,或直至細胞脫落。 在顯微鏡下觀察細胞脫落情況,必要時輕輕敲擊培養容器以促使細胞脫落。一旦細胞脫落,加入完全培養基以中和胰蛋白酶/EDTA,輕輕重懸細胞,並將部分細胞懸液轉移至裝有新鮮培養基的新培養容器中。 將培養皿置於設定為 37°C 且含有 5% CO₂ 的培養箱中,並每 2-3 天更換一次培養基。
Split ratio
1 至 5
Seeding density
2 至 5 × 10⁴ 個細胞/cm²
Fluid renewal
每週 2 至 3 次
Post-thaw recovery

解凍後,將細胞以 1:2 至 1:3 的比例分裝至 T25 培養瓶中,並讓細胞從冷凍過程中恢復,並使其附著(針對貼壁培養)至少 24 小時。

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.

07Quality 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。

08Donor

Donor age
成人