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Liver cytology is the branch of cytology that studies the liver cells and its functions. The liver is a vital organ, in charge of almost all the body’s metabolism. Main liver cells are hepatocytes, Kupffer cells, and hepatic stellate cells; each one with a specific function.
Also, in rat liver, DNA single- and double-strand breaks, oxidized bases, and methylated bases increase with age; and in rabbit liver, cross-linked bases increase with age. [6] Liver cells depend on DNA repair pathways that specifically protect the transcribed compartment of the genome to promote sustained functionality and cell preservation ...
(Lipopolysaccharide (LPS) is a bacterial endotoxin which is found in the cell wall gram-negative bacteria, whereas lipoteichoic acid is present in gram-positive bacteria.) Because of this detection system, Kupffer cells play a critical role in initiating and mediating immune responses to bacterial infection of the liver.
The HepaRG cells have been found to express major nuclear receptors, [5] as well as drug and bile acids transporters, [6] and key hepatic nuclear factors. [ 7 ] [ 8 ] They also possess functional levels of phase I (CYP (CYP1A1/2, CYP2B6, CYP2Cs, CYP3A4, etc.) and II (UGT1A1, GSTA1, GSTA4, GSTM1) drug metabolizing enzymes. [ 9 ]
Forkhead box protein A2 (FOXA2), also known as hepatocyte nuclear factor 3-beta (HNF-3B), is a transcription factor that plays an important role during development, in mature tissues and, when dysregulated or mutated, also in cancer.
The LSECs contain 45% and 17% of the liver's total mass of pinocytic vesicles and lysosomes, and contain twice as many clathrin-coated pits per membrane unit, compared with two other major liver cells, Kupffer cells and hepatocytes, [5] reflecting the high capacity clathrin-mediated endocytic activity of LSECs.
The gene coding for human SAA1 is one of the 4 SAA genes mapped to a region in the short arm on Chromosome 11. [12] Two of these genes, SAA1 and SAA2, are inducible during acute-phase response, whereas SAA3 is a pseudogene in humans [13] and SAA4 is constitutively expressed in a variety of tissues and cells. Single nucleotide polymorphisms ...
Hepatocyte growth factor (HGF) or scatter factor (SF) is a paracrine cellular growth, motility and morphogenic factor. It is secreted by mesenchymal cells and targets and acts primarily upon epithelial cells and endothelial cells , but also acts on haemopoietic progenitor cells and T cells .