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L-138
Tissue
造血、雜交瘤
Synonyms
M138, M 138, M-24 (M138), M-24, L138

Documents

L-138

Cell line · Product number 400384

The L-138 cell line, also known by its original designation M138, is a melanoma cell line derived from cutaneous melanoma. Melanoma is a type of skin canc...

US$395.00excl. tax and shipping
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Lot
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1

01General information

Description

L-138 細胞系(亦以其原始名稱 M138 聞名)是一種源自皮膚黑色素瘤的黑色素瘤細胞系。黑色素瘤是一種源自黑色素細胞的皮膚癌,而黑色素細胞正是負責產生黑色素的細胞。 該細胞系對於理解與黑色素瘤及黑色素細胞分化相關的表面抗原至關重要。L-138 細胞的特徵在於其表達特定抗原,這些抗原可定義黑色素瘤的亞群,有助於根據抗原特徵對黑色素瘤類型進行分類與分化研究。

L-138 細胞表現出獨特的表面抗原,包括透過單克隆抗體鑑定出的 M-24 抗原。這些抗原經血清學分析後發現,L-138 細胞系會表達多種針對黑色素瘤的特異性單克隆抗體所能檢測到的抗原。 其中包括 HLA-A、B、C 抗原及 β2-微球蛋白,這些抗原在大多數黑色素瘤細胞系中反應性極高,有助於理解黑色素瘤細胞的免疫識別與分類​:引用[oaicite:0]{index=0}​ 。

此外,L-138 細胞系已被用於酪氨酸酶活性測定,該酶對於黑色素合成至關重要。研究人員利用放射性標記的酪氨酸測量 L-138 細胞中的酪氨酸酶活性,證實了黑色素瘤細胞在色素生成方面的功能特性。 將此活性與非色素性腎癌細胞進行比較,凸顯了黑色素瘤中獨特的酶活性。此類研究有助於闡明黑色素瘤治療中的代謝途徑及潛在治療靶點。

Tissue
造血、雜交瘤
Synonyms
  • M138
  • M 138
  • M-24 (M138)
  • M-24
  • L138

02Classification

Organism
Mouse
Growth properties
Suspension
Biosafety level
1

03Characteristics

Morphology
圓形細胞
Cell type
淋巴母細胞

04Identifiers

Citation
L-138(Cytion 型號 400384)
NCBI TaxID
10090
Cellosaurus
CVCL_J758

05Expression and susceptibility

Products
針對人類皮膚黑色素細胞(M-24 抗原系統)的單克隆抗體(免疫球蛋白,IgG1)。CLS 對該細胞系的抗體產量不作任何保證。

06Handling 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)
Subculturing
透過定期添加或更換培養基來維持培養。以 5 × 10⁵ 細胞/毫升的密度啟動培養,並將細胞濃度維持在 3 × 10⁵ 至 1 × 10⁶ 細胞/毫升的範圍內,以達到最佳生長效果。
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