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GT1-1
Tissue
大腦、下視丘

Documents

GT1-1

Cell line · Product number 305497

The GT1-1 cell line is derived from the hypothalamus and is known for its application in neuroscience research. This murine cell line was established from...

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1

01General information

Description

GT1-1 細胞系源自下視丘,以其在神經科學研究中的應用而聞名。此小鼠細胞系是從源自下視丘前部的基因靶向腫瘤細胞建立而來,其中特別含有具備神經內分泌特性的神經元。 GT1-1 細胞表達多種下視丘神經元特有的標記物,包括參與促性腺激素釋放激素(GnRH)合成與釋放的標記物;該激素在生殖生物學中扮演著關鍵角色。

GT1-1 細胞對於探究與神經內分泌功能、分泌及神經訊號傳導路徑相關的機制特別有用。它們常被用作研究下視丘激素分泌背後調控過程的模型,包括細胞對各種神經肽及其他生理刺激的反應。 該細胞系能夠以脈衝式方式分泌 GnRH,為研究神經內分泌調控及相關病理(例如影響生育能力與生殖內分泌學的病理)提供了可靠的系統。

Tissue
大腦、下視丘

02Classification

Organism
Mouse
Growth properties
Adherent
GMO status
GMO-S1
GMO status details
GMO-S1: This GT1-1 neuronal line contains an SV40 large T-antigen construct driven by the rat GnRH1 promoter for neuroendocrine research. This classification applies only within Germany and may differ elsewhere.
Biosafety level
2

03Characteristics

Cell type
GnRH神經元

04Identifiers

Citation
GT1-1(Cytion 型號 305497)
NCBI TaxID
10090
Cellosaurus
CVCL_6236

05Expression and susceptibility

Viruses
轉化體:猿病毒 40 型(SV40)

06Handling and culture

Culture medium
DMEM:Ham's F12(1:1),重量比:3.1 g/L 葡萄糖,重量比:2.5 mM L-谷氨酰胺,重量比:15 mM HEPES, w: 0.5 mM 丙酮酸鈉,w: 1.2 g/L NaHCO₃(Cytion 產品編號 820400a)
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
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

Breed / subspecies
(C57BL/6J × BALB/cJ) F2 轉基因小鼠,攜帶大鼠 Gnrh1 啟動子-Tg(SV40)