Words similar to lif
Example sentences for: lif
How can you use “lif” in a sentence? Here are some example sentences to help you improve your vocabulary:
Recent evidence indicates that the cytokine, leukemia inhibitory factor (LIF) and its functional binding to the high affinity receptor, a heterodimer between low-affinity LIFR and glycoprotein 130 (LIFR:gp130), are players within the HPA cascade of events.
LIF and LIFR are functionally expressed in rodent tissues that are central to GC production: the hypothalamus [ 8 ] and pituitary [ 9 10 11 12 ] . LIF works in synergy with corticotropin-releasing hormone (CRH) in the hypothalamus to increase pituitary pro-opiomelanocortin (POMC) and, ultimately, pituitary adrenocorticotrophin hormone (ACTH) [ 9 11 13 14 15 16 ] . LIF also stimulates POMC gene expression directly in the pituitary [ 9 11 15 17 ] . LIF up-regulates pituitary prohormone convertase (PC1).
All ES cell lines were cultured on mitotically inactivated primary embryonic fibroblasts in ES cell medium supplemented with recombinant leukemia inhibitory factor (LIF) as described elsewhere [ 22 ] . F3 cells were generated by introducing 100 μg of Not1 digested pΔHPRT plasmid into 1.5 × 10 8R1 ES cells by electroporation at 250 volts/500μf/resistance 8 using a BTX ECM600 electroporation system [ 7 ] . Cells containing neo were selected by supplementing the ES cell medium with 250 μg/ml Geneticin (G418, Gibco-BRL) and negative selection against Hsv-tk gene expression was achieved by including 2 μM gancyclovir (Roche).
Animal models of LIF over expression and ablation have confirmed importance in stress regulation.
Adult mouse LIF over expression mediated by transfer of LIF over expressing hematopoietic cells results in a lethal, multi-systemic phenotype that includes small adrenals with a loss of the innermost cortical layer [ 28 ] . Pituitary specific LIF over expression leads to a Cushing's Syndrome-like condition of GC hyperactivity [ 29 30 ] . LIF null adult mice have normal or slightly reduced basal ACTH and GC concentrations, and are unable to respond to acute stress by increased ACTH.
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