TLR4/HEK293 Stable Cell Line

Fig-1: Functional analysis of the TLR4/HEK293 cell line. TLR4/HEK293 cells as well as parental HEK293 cells were transfected with CD14, MD-2 and NF-kB/Renilla luciferase reporter plasmids for 16 h. Cells were stimulated with different doses of LPS (Abeomics, Cat. #15-1013) for 16 h followed by luciferase assay using Luciferase Assay Reagent (Abeomics, Cat. #17-1101).

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Fig-1: Functional analysis of the TLR4/HEK293 cell line. TLR4/HEK293 cells as well as parental HEK293 cells were transfected with CD14, MD-2 and NF-kB/Renilla luciferase reporter plasmids for 16 h. Cells were stimulated with different doses of LPS (Abeomics, Cat. #15-1013) for 16 h followed by luciferase assay using Luciferase Assay Reagent (Abeomics, Cat. #17-1101).

Fig-2: Western blot analysis of TLR4 expression in the TLR4/HEK293 cell line. Cell lysates were analyzed by SDS-PAGE followed by Western blotting using anti-HA antibody. Note that TLR4 in the TLR4/HEK293 stable cell line contains the N-terminal HA tag. Control, parental HEK293 cell lysate; TLR4, TLR4/HEK293 cell lysate.

Product code: 14-533ACL

Application :	Functional Assay

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Order now and get it on Tuesday September 03, 2024

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Download TDS / Manual MSDS

Amount :	1 Vial
Content :	Each vial contains 2 ~ 3 x 10^6 cells in 1 ml of 90% FBS + 10% DMSO
Storage condition :	Immediately upon receipt, store in liquid nitrogen.

TLR4/HEK293 Stable Cell Line is a stably transfected HEK293 cell line which expresses human Toll-like receptor 4 (TLR4, also designated as CD284). TLR4 mediates immune responses by recognition of lipoplysaccharides (LPS) with the help of LPS-binding protein, CD14 and MD-2. TLR4 stimulation uniquely triggers two signaling pathways named the MyD88-dependent pathway and the TRIF-dependent pathway, which lead to the production of two sets of cytokines such as proinflammatory cytokines and type I interferons/chemokines, respectively. Note that TLR4 in the TLR4/HEK293 stable cell line contains the N-terminal HA tag (Figure 2), which does not interfere with TLR4 activity as confirmed by functional assay (Figure 1).

Sequence data: Human TLR4 (accession number NP_612564)

MMSASRLAGTLIPAMAFLSCVRPESWEPCVEVVPNITYQCMELN

FYKIPDNLPFSTKNLDLSFNPLRHLGSYSFFSFPELQVLDLSRCEIQTIEDGAYQSLS

HLSTLILTGNPIQSLALGAFSGLSSLQKLVAVETNLASLENFPIGHLKTLKELNVAHN

LIQSFKLPEYFSNLTNLEHLDLSSNKIQSIYCTDLRVLHQMPLLNLSLDLSLNPMNFI

QPGAFKEIRLHKLTLRNNFDSLNVMKTCIQGLAGLEVHRLVLGEFRNEGNLEKFDKSA

LEGLCNLTIEEFRLAYLDYYLDDIIDLFNCLTNVSSFSLVSVTIERVKDFSYNFGWQH

LELVNCKFGQFPTLKLKSLKRLTFTSNKGGNAFSEVDLPSLEFLDLSRNGLSFKGCCS

QSDFGTTSLKYLDLSFNGVITMSSNFLGLEQLEHLDFQHSNLKQMSEFSVFLSLRNLI

YLDISHTHTRVAFNGIFNGLSSLEVLKMAGNSFQENFLPDIFTELRNLTFLDLSQCQL

EQLSPTAFNSLSSLQVLNMSHNNFFSLDTFPYKCLNSLQVLDYSLNHIMTSKKQELQH

FPSSLAFLNLTQNDFACTCEHQSFLQWIKDQRQLLVEVERMECATPSDKQGMPVLSLN

ITCQMNKTIIGVSVLSVLVVSVVAVLVYKFYFHLMLLAGCIKYGRGENIYDAFVIYSS

QDEDWVRNELVKNLEEGVPPFQLCLHYRDFIPGVAIAANIIHEGFHKSRKVIVVVSQH

FIQSRWCIFEYEIAQTWQFLSSRAGIIFIVLQKVEKTLLRQQVELYRLLSRNTYLEWE

DSVLGRHIFWRRLRKALLDGKSWNPEGTVGTGCNWQEATSI

Application:.

Functional assay.

Culture conditions:

Cells should be grown at 37^oC with 5% CO₂ using DMEM medium (w/ L-Glutamine, 4.5g/L Glucose and Sodium Pyruvate) supplemented with 10% heat-inactivated FBS and 1% Pen/Strep, plus 10 µg/ml of Blasticidin.

It is recommended to quickly thaw the frozen cells upon receipt or from liquid nitrogen in a 37^oC water-bath, transfer to a tube containing 10 ml of growth medium without Blasticidin, spin down cells, resuspend cells in pre-warmed growth medium without Blasticidin, transfer resuspended cells to T25 flask and culture in 37^oC-CO₂ incubator.

Leave the T25 flask in the incubator for 1~2 days without disturbing or changing the medium until cells completely recover viability and become adherent. Once cells are over 90% adherent, remove growth medium and passage the cells through trypsinization and centrifugation. At first passage, switch to growth medium containing Blasticidin. Cells should be split before they reach complete confluence.

To passage the cells, detach cells from culture vessel with Trypsin/EDTA, add complete growth medium and transfer to a tube, spin down cells, resuspend cells and seed appropriate aliquots of cells suspension into new culture vessels. Subcultivation ration = 1:10 to 1:20 weekly. To achieve satisfactory results, cells should not be passaged over 16 times.

LIMITED USE RESTRICTIONS:

THIS PRODUCT IS SOLELY FOR IN VITRO RESEARCH USE ONLY. NOT FOR DIAGNOSTIC OR THERAPEUTIC USE.

By use of this product, user agrees to be bound by the terms of this limited use statement.

This product is solely for Internal Research Purposes and not for Commercial Purposes. Commercial Purposes include, but are not limited to (1) use of the cell line in manufacturing; (2) use of the cell line to provide a service, information or data; (3) use of the cell line for therapeutic, diagnostic or prophylactic purposes; or (4) resale of the cell line whether or not such cell lines are resold for use in research. The buyer cannot sell, give or otherwise transfer this product to a third party.

Commercial License Agreement is available for non-research use if applicable. Please contact Abeomics ([email protected]).

For Research Use Only. Not for use in diagnostic/therapeutics procedures.

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