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LA795
Tissue
肺
Disease
小鼠肺系統的腺癌
Synonyms
LA-795

Documents

LA795

Cell line · Product number 300472

The LA795 cell line, derived from a lung adenocarcinoma, has been extensively studied for its chromosomal patterns using G and C banding techniques at pas...

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

01General information

Description

源自肺腺癌的 LA795 細胞系,其第 60 代與第 100 代細胞的染色體圖譜,已透過 G 帶與 C 帶染色技術進行了廣泛研究。染色體分析結果顯示,其模型染色體數分別為 69、68、67 及 66。 針對這四個克隆中 46 個細胞進行的詳細 G 帶分析顯示,LA795 的染色體模式屬於低四倍體雄性細胞,與移植至小鼠體內的細胞所觀察到的模式極為相似。 69 型模型染色體的兩種主要配置(分別命名為 69I 和 69II)顯示,染色體演化呈現從 69 型逐步演變至 68、67 及 66 型的進程,此現象已透過核型分析得到確認。

核型分析還突顯出各克隆中特定染色體(尤其是第 4 號和第 14 號染色體)缺失的顯著模式。這種反覆出現的染色體缺失,表明可能存在與小鼠腫瘤細胞相關的非隨機染色體畸變。 這些研究的發現為 LA795 細胞系的染色體穩定性與演化提供了寶貴的見解,有助於更深入地理解肺腺癌及其進展的遺傳基礎。

Tissue
肺
Disease
小鼠肺系統的腺癌
Synonyms
  • LA-795

02Classification

Organism
Mouse
Sex
Male
Growth properties
Adherent
Biosafety level
1

03Identifiers

Citation
LA795(Cytion 型號 300472)
NCBI TaxID
10090
Cellosaurus
CVCL_G363

04Handling 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)
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.

05Quality 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。

06Donor

Breed / subspecies
T739
Donor age
未指定