REH

REH 是一種人類 B 細胞前體急性淋巴細胞白血病（ALL）細胞系，於 1973 年從一名 15 歲復發期患者的外周血中分離得到。 作為最早建立的 B 細胞前體 ALL 模型之一，它呈現典型的淋巴母細胞形態，並能在懸浮培養中生長，反映了白血病原始細胞的行為特徵。

REH 細胞廣泛用於研究 B-ALL 的生物學特性，包括增殖、存活途徑及治療反應。它們既可支援體外藥物篩選研究，亦可透過免疫缺陷小鼠的異種移植實驗進行體內白血病建模，使其成為研究新型治療策略之臨床前研究的多功能工具。

37°C，5% CO_₂，加濕環境。

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.

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。

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。

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。

在 Cytion，我們對產品的品質與存活率提供保障。 我們保證，自本公司設施出貨後 60 天內，我們的細胞在培養開始時仍具存活能力。 我們保證所有材料均符合 分析證明書及／或產品說明書中所載的規格。

詳情請參閱我們的 《保固聲明》。