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856246 occurrences (No.4 in the rank) during 5 years in the PubMed. [no cache] 500 found

320) We previously demonstrated capillary formation of endothelial cells (ECs) in tri-culture, where a polyethylene terephthalate (PET) microporous membrane was intercalated between the ECs and hepatic organoids composed of small hepatocytes (SHs), i.e.

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PMID:23086892 DOI:10.1002/term.1630

2015 Journal of tissue engineering and regenerative medicine

* Reconstruction of hepatic stellate cell-incorporated liver capillary structures in small hepatocyte tri-culture using microporous membranes.

- In liver sinusoids, hepatic stellate cells (HSCs) locate the outer surface of microvessels to form a functional unit with endothelia and hepatocytes. To reconstruct functional liver tissue in vitro, formation of the HSC-incorporated sinusoidal structure is essential. We previously demonstrated capillary formation of endothelial cells (ECs) in tri-culture, where a polyethylene terephthalate (PET) microporous membrane was intercalated between the ECs and hepatic organoids composed of small hepatocytes (SHs), i.e. hepatic progenitor cells, and HSCs. However, the high thickness and low porosity of the membranes limited heterotypic cell-cell interactions, which are essential to form HSC-EC hybrid structures. Here, we focused on the effective use of the thin and highly porous poly( d, l-lactide-co-glycolide) (PLGA) microporous membranes in SH-HSC-EC tri-culture to reconstruct the HSC-incorporated liver capillary structures in vitro. First, the formation of EC capillary-like structures was induced on Matrigel-coated PLGA microporous membranes. Next, the membranes were stacked on hepatic organoids composed of small SHs and HSCs. When the pore size and porosity of the membranes were optimized, HSCs selectively migrated to the EC capillary-like structures. This process was mediated in part by platelet-derived growth factor (PDGF) signalling. In addition, the HSCs were located along the outer surface of the EC capillary-like structures with their long cytoplasmic processes. In the HSC-incorporated capillary tissues, SHs acquired high levels of differentiated functions, compared to those without ECs. This model will provide a basis for the construction of functional, thick, vascularized liver tissues in vitro.

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(1)80 null	(15)5 as	(29)3 exposed	(43)2 expanded
(2)47 and	(16)5 expressed	(30)3 have	(44)2 expressing
(3)39 were	(17)5 of	(31)3 isolated	(45)2 had
(4)26 in	(18)5 which	(32)3 showed	(46)2 labeled
(5)12 (MSCs)	(19)4 (ASCs)	(33)3 we	(47)2 may
(6)11 was	(20)4 has	(34)2 (ASCs),	(48)2 play
(7)10 to	(21)4 is	(35)2 (BMSCs)	(49)2 present
(8)9 with	(22)4 on	(36)2 (ECFCs)	(50)2 remains
(9)7 are	(23)4 seeded	(37)2 (HSCs)	(51)2 such
(10)6 can	(24)4 within	(38)2 after	(52)2 the
(11)6 for	(25)3 (ASC)	(39)2 by	(53)2 via
(12)6 from	(26)3 (ECs)	(40)2 caused
(13)6 or	(27)3 (HUVECs)	(41)2 cultured
(14)6 that	(28)3 (hMSCs)	(42)2 derived

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--- WordNet output for cells --- Overview of noun cell The noun cell has 7 senses (first 3 from tagged texts) 1. (71) cell -- (any small compartment; "the cells of a honeycomb") 2. (44) cell -- ((biology) the basic structural and functional unit of all organisms; they may exist as independent units of life (as in monads) or may form colonies or tissues as in higher plants and animals) 3. (1) cell, electric cell -- (a device that delivers an electric current as the result of a chemical reaction) 4. cell, cadre -- (a small unit serving as part of or as the nucleus of a larger political movement) 5. cellular telephone, cellular phone, cellphone, cell, mobile phone -- (a hand-held mobile radiotelephone for use in an area divided into small sections, each with its own short-range transmitter/receiver) 6. cell, cubicle -- (small room in which a monk or nun lives) 7. cell, jail cell, prison cell -- (a room where a prisoner is kept) --- WordNet end ---