Immortalized Equine Lung Cells (extEqFL)

Cat.No.: CSC-I9288L

Species: Equine

Source: Lung

Morphology: Polygonal

Culture Properties: Adherent

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Cat.No.
CSC-I9288L
Description
Immortalized Equine Lung Cells (extEqFL) are immortalized with the HPV16 E6/E7 gene through infection with non-replicating retrovirus carrying the PA317 LXSN HPV16 E6/E7 vector. These cells are a reliable tool for research in equine lung biology and can be used to assess the effects of equine related viruses. The extEqFL cellsin vitrocan be genetically manipulated for further research.
Species
Equine
Source
Lung
Culture Properties
Adherent
Morphology
Polygonal
Immortalization Method
Infected with non-replicating retrovirus containing a supernatant from the PA317 LXSN HPV16E6E7
Application
For Research Use Only
Storage
Directly and immediately transfer cells from dry ice to liquid nitrogen upon receiving and keep the cells in liquid nitrogen until cell culture needed for experiments.

Note: Never can cells be kept at -20 °C.
Shipping
Dry Ice.
Recommended Products
CIK-HT018 HT® Lenti-HPV-16 E6/E7 Immortalization Kit
Quality Control
1) Selected cells with presence of 600 µg/ml G418
2) PCR analysis for HPV16 E6/E7 presence
BioSafety Level
II
Citation Guidance
If you use this products in your scientific publication, it should be cited in the publication as: Creative Bioarray cat no. If your paper has been published, please click here to submit the PubMed ID of your paper to get a coupon.

extEqFL refers to Immortalized Equine Lung cell line. These cells are used extensively as an in vitro model and originated from fetal lung cells of horses. Created by transduction with LXSN116E6E7 retroviral vector containing human papillomavirus type 16 E6/E7 oncogenes, they have been passaged for over 40 times with retention of epithelial like morphology and normal growth properties. They allow for an unlimited source of equine cells in a laboratory setting due to their immortality, bypassing the usual senescence seen in primary cultures. extEqFL cells are used to research viruses that target the respiratory system of horses. The cells support replication of equine gammaherpesviruses EHV-2 and EHV-5 extremely well, allowing for analysis of replication and other viral property studies. They have also been used in studies with other viruses such as Henipaviruses (family Paramyxoviridae), specifically Hendra virus (HeV) as a model for

In Vitro Characterization of Viral Growth Kinetics of Hev-G1 and Hev-G2

Hendra virus is a lethal zoonotic pathogen with no approved human countermeasures, requiring nonhuman primate models for therapeutic evaluation. Pigeaud et al. compared the pathogenesis of the classic genotype 1 and the emerging genotype 2 Hendra virus in African green monkeys to assess their relative virulence and human health risk.

Replication kinetics of HeV-g1 and HeV-g2 were compared by infecting African green monkey, human, and equine-derived cell lines, with viral titers in supernatants measured by plaque assay (Fig. 1). In all cell types, HeV-g2 replication was slower and peak titers were lower than HeV-g1. Specifically, in Vero cells, HeV-g2 peaked at 7.1 log₁₀ PFU/mL versus 8.9 for HeV-g1; in human A549 cells at 5.4 versus 6.5 log₁₀ PFU/mL; and in equine extEqFL cells at 5.8 versus 7.3 log₁₀ PFU/mL.

HeV-g1 and HeV-g2 growth kinetics in nonhuman primate, human, and equine cells.

Fig. 1. HeV-g1 and HeV-g2 growth kinetics in nonhuman primate, human, and equine cells (Pigeaud D D, Fenton K A, et al., 2025).

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