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L-138
Tissue
造血、杂交瘤
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...

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1

01General information

Description

L-138 细胞系(最初的名称为 M138)是一种从皮肤黑色素瘤中提取的黑色素瘤细胞系。黑色素瘤是一种源于黑色素细胞的皮肤癌,黑色素细胞负责产生黑色素。该细胞系对于了解黑色素瘤和黑色素细胞分化所涉及的表面抗原至关重要。L-138 细胞表达的特异性抗原是黑色素瘤亚群的特征,有助于根据抗原谱对黑色素瘤类型进行分类和分化研究。

L-138 细胞表现出独特的表面抗原,包括通过单克隆抗体鉴定的 M-24 抗原。对这些抗原进行血清学分析后发现,L-138 细胞系表达的抗原可被几种黑色素瘤特异性单克隆抗体检测到。这些抗原包括 HLA-A、B、C 抗原和 β2-微球蛋白,它们在大多数黑色素瘤细胞系中都有很高的反应性,为黑色素瘤细胞的免疫识别和分类提供了见解:citation[oaicite:0]{index=0}。

此外,L-138 细胞系还被用于酪氨酸酶活性测定,这是一种对黑色素合成至关重要的酶。使用放射性标记的酪氨酸测量了 L-138 细胞中酪氨酸酶的活性,证明了黑色素瘤细胞在色素生成方面的功能特性。将这种活性与无色素的肾癌细胞进行比较,显示了黑色素瘤中独特的酶活性。这些研究有助于阐明黑色素瘤治疗中的代谢途径和潜在治疗靶点。

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

02Classification

Organism
Mouse
Growth properties
Suspension
Biosafety level
1

03Characteristics

Morphology
圆形电池
Cell type
淋巴母细胞

04Identifiers

Citation
L-138(Cytion 目录编号 400384)
NCBI TaxID
10090
Cellosaurus
CVCL_J758

05Expression and susceptibility

Products
针对人类皮肤黑色素细胞(M-24 抗原系统)的单克隆抗体(免疫球蛋白,IgG1)。CLS 不保证该细胞系可产生抗体。

06Handling and culture

Culture medium
RPMI 1640,w:2.0 mM 稳定谷氨酰胺,w:2.0 g/L NaHCO3(Cytion 文章编号 820700a)。
Incubation atmosphere

37°C, 5%CO2, 加湿环境。

Supplements
在培养基中添加 10% FBS
Subculturing
通过定期添加或更换培养基来维持细胞培养。初始培养时细胞密度应为5×10⁵个细胞/毫升,并保持细胞浓度在3×10⁵至1×10⁶个细胞/毫升范围内以获得最佳生长效果。
Fluid renewal
每周 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

使用基于 PCR 的检测方法和基于发光的支原体检测方法排除支原体污染。

为确保没有细菌、真菌或酵母菌污染,每天都要对细胞培养物进行目视检查。

Freeze medium
我们使用完全生长培养基(包括 FBS)+10% DMSO 或 CM-1(Cytion 商品目录编号 800100)作为冷冻保存培养基,以获得足够的解冻后存活率,CM-1(Cytion 商品目录编号 800100)含有优化的渗透保护剂和代谢稳定剂,可提高恢复能力并减少冷冻引起的应激。
Storage conditions

如需长期保存,可将样品瓶放入气相液氮中,温度约为 -150 至 -196 ℃。在-80 °C下保存只能作为转入液氮前的短暂过渡。

Shipping conditions

冷冻保存的细胞系用干冰装运,并用经过验证的隔热包装和足够的制冷剂在整个运输过程中保持约 -78 °C 的温度。收到货后,应立即检查容器,并立即将小瓶转移到适当的储藏室。

08Donor

Breed / subspecies
BALB/c