LA1-5s

Human Neural Crest-Derived Non-Neuronal Progenitor

LA1-5s is a clonal subline of the cell line LA-N-1 which was established by Seeger et al., (1977) from the primary site of a noncatecholamine-producing neuroblastoma of a 3-year-old female with clinical Stage IV neuroblastoma. The LA1-5s culture consists of large, flat, and tightly adherent cells. They are precursors of Schwann cell/glia/melanocyte lineages arising from the neural crest. This cell line is not tumourigenic in nude mice at a 1,000,000 cell inoculum. The cells can transdifferentiate to a neuroblastic phenotype. The N-myc gene has been reported to be amplified but exhibits very low expression.

LA-N-1 (Sigma catalog number 06041201), LA1-55n (Sigma catalog number 06041203) and LA1-5s (Sigma catalog number 06041204) have been shown to originate from the same patient by STR profiling.

EMEM (with non-essential amino acids) and Ham′s F12 (1:1 mixture) + 2 mM Glutamine + 10% Fetal Bovine Serum (FBS)

For routine maintenance, split cultures every 2-3 weeks at a 1:10 to 1:100 ratio; 8% CO₂; 37 °C. The cells are large, flat, fibroblast-like cells that adhere strongly to the substrate. They form a swirling monolayer with no mounding or multilayering when in culture for only a short time, but will increase in density in the stationary phase as the culture is maintained. The cells can be removed from the substrate by rinsing with PBS, then incubating with EDTA/trypsin (at room temperature). Cells will detach in 5-10 minutes. Cells will reattach within several hours after seeding into a new flask. Population doubling time is approximately 2 days. Cells grow best and are most adherent on a plastic substrate in medium at a pH of 6.9-7.2; they do not tolerate more alkaline pH well. Cultures hold well at high density with periodic medium changes, but may also give rise to neuroblastic variants.

Additional freight & handling charges may be applicable for Asia-Pacific shipments. Please check with your local Customer Service representative for more information.

This cell line is part of the European Collection of Authenticated Cell Cultures (ECACC), an international repository managed by the United Kingdom Health Security Agency (UKHSA). No licensing agreement is required when either this cell line or the DNA extracted from it are used for internal research purposes only. Any other use of these products is prohibited without the express written permission of UKHSA. Inquiries regarding authorized use of this cell line or its genomic DNA may be directed to culturecollections@ukhsa.gov.uk.