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K7M2 wt
Tissue
腹水
Disease
小鼠骨肉瘤
Metastatic site
肺
Synonyms
K7M2-WT, K7M2

Documents

K7M2 wt

Cell line · Product number 305188

The K7M2 wt cell line is derived from a murine osteosarcoma and is frequently utilized in cancer research, particularly for studies investigating the path...

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01General information

Description

K7M2 wt 細胞系源自小鼠骨肉瘤,常被應用於癌症研究,特別是針對骨肉瘤病理機制及治療反應的研究。 該細胞系以高度轉移潛能為特徵,使其成為研究癌症轉移機制及測試抗轉移藥物的極具價值模型。K7M2 wt 細胞呈現典型的上皮形態,並在體外展現強勁的生長能力,這有助於進行各種實驗應用,包括基因表達研究、藥物篩選及基因操作。

研究人員利用 K7M2 wt 細胞系,探索骨肉瘤進展所涉及的分子與細胞過程。相關研究常聚焦於信號傳導路徑,例如在腫瘤生長與轉移中至關重要的 Wnt/β-catenin 及 PI3K/AKT 路徑。 K7M2 wt 細胞的基因特徵包含骨肉瘤中常見的變異,有助於深入了解此種惡性腫瘤的遺傳驅動因子。此外,該細胞系在新型治療方法(包括標靶治療和免疫治療)的臨床前測試中發揮關鍵作用,為將研究成果轉化為潛在的臨床應用提供了平台。

Tissue
腹水
Disease
小鼠骨肉瘤
Metastatic site
肺
Applications
骨肉瘤研究;同源性 BALB/c 腫瘤模型;轉移建模;Wnt/β-catenin 及 PI3K/AKT 路徑研究;抗腫瘤藥物評估;免疫療法測試;補體與 Fc 受體生物學
Synonyms
  • K7M2-WT
  • K7M2

02Classification

Organism
Mouse
Sex
Female
Growth properties
Adherent
GMO status
Non-GMO
GMO status details
No genetic modification; wildtype murine osteosarcoma cell line derived from BALB/c mice
Biosafety level
1

03Characteristics

Cell type
成骨細胞
Tumourigenic
是的

04Identifiers

Citation
K7M2 野生型(Cytion 型號 305188)
NCBI TaxID
10090
Cellosaurus
CVCL_V455

05Expression and susceptibility

Receptors expressed
補體(C3),已表達;Fc受體,IgG,高親和力I型(Fcgr1),已表達

06Handling and culture

Culture medium
DMEM,含 4.5 g/L 葡萄糖、4 mM L-谷氨醯胺、3.7 g/L NaHCO₃ 及 1.0 mM 丙酮酸鈉(Cytion 產品編號 820300a)
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。
Fluid renewal
每週 2 至 3 次
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
BALB/c
Donor age
895 天