Work with LifeSpan to design a custom immunohistochemistry to address your specific biological question. Outsource the entire localization process without having to
worry about finding and characterizing target specific antibodies, sourcing and validating difficult-to-find tissues, and having the ability to interpret the resulting
immunostaining in relation to complex human pathologies.
TCR Screening Services
Test your therapeutic antibodies in immunohistochemistry against a broad panel of normal frozen human tissue types in order to determine potential unintended binding.
Our non-GLP TCR services are designed on the FDA recommendation outlined in their "Points to Consider in the Manufacture and Testing of Monoclonal Antibody Products for Human Use".
Involved in the Notch signaling pathway as Notch ligand. Activates NOTCH1 and NOTCH4. Involved in angiogenesis; negatively regulates endothelial cell proliferation and migration and angiogenic sprouting. Essential for retinal progenitor proliferation is required for suppressing rod fates in late retinal progenitors as well as for proper generation of other retinal cell types. During spinal cord neurogenesis, inhibits V2a interneuron fate.
Adipogenesis inhibition of 3T3L-1 cells. 3T3L-1 Cells(mouse pre-adipocyte cells) were maintained in DMEM, supplemented with 10% fetal bovine serum and penicillin-streptomycin. For differentiation of 3T3L-1 Cells, 3T3L-1 Cells were cultured in adipogenic medium which was growth medium supplemented with 1 uM Dexamethasone, 0.5mM IBMX, 10 ug/ml lnsulin (day 0). Medium was changed every 2 days. Staining with Oil Red O was typically performed on day 7. Cells were washed twice with PBS, fixed with 3.7% formalin, and stained with 0.5% filtered Oil Red O in propylene glycol. For negative controls, mouse TNF-alpha (20ng/ml) was added. Recombinant human DLL4-Fc (5 ug/ml) dissolved in DPBS was added to the differentiation medium. These plates were then used to differentiate 3T3L-1 Cells.
Adipogenesis inhibition of MSCs. MSCs (Mesenchymal stem cells) were maintained in DMEM, supplemented with 10% fetal bovine serum, penicilin-streptomycin and glutamine. For differentiation of MSCs, MSCs were cultured in adipogenic medium which was growth medium supplemented with 1 uM Dexamethasone, 0.5mM IBMX, 10 ug/m lnsulin, 100 uM Indomethacin (day 1). Medium was changed every 3 days. Staining with Oil Red O was typically performed on day 30. For negative controls, TNF-alpha (20ng/ml) was added. To immobilize Notch ligands on the plastic surface of the culture plates, plates were incubated with a solution of hDLL4-Fc (5 ug/ml) or mCD137-Fc (5 ug/ml) in PBS for 2 hours at 37 degrees C. Plates were then used to differentiate MSCs.
Interaction of human Notch1 with human DLL4. HEK293 cells transfected with a human Notch1 or a human GITR ligand expressing vector were incubated with 25 ug/ml of human GITR-Fc or human DLL4-Fc FITC conjugate for DLL4-Fc binding.
Adipogenesis inhibition of 3T3L-1 cells.
Induction of Hes-1 with the treatment of recombinant human DLL4-Fc (Prod. No. AG-40A-0077). A mouse preadpipocyte cell line, 3T3L1, was stimulated with 5 ug/ml of human DLL4-Fc as in indicated time points and each cell lysate was prepared and subjected to western blot by using anti-mouse Hes1 or GAPDH.
50 ug of cell lysates derived from hDLL4-Fc or non-treated 3T3L1 cells, which had been either differentiated or undifferentiated, were subjected to western blot by using a mouse adiponectin antibody.