ELIZA

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663834 occurrences (No.9 in the rank) during 5 years in the PubMed. [no cache] 500 found

328) Each passaged miPS cells on these scaffolds were cryopreserved successfully and the revived cells showed high viability and proliferation.

--- ABSTRACT ---

PMID:23166055 DOI:10.1002/term.1640

2015 Journal of tissue engineering and regenerative medicine

* Hydrogels as feeder-free scaffolds for long-term self-renewal of mouse induced pluripotent stem cells.

- Expanding undifferentiated induced pluripotent stem (iPS) cells in vitro is a basic requirement for application of iPS cells in both fundamental research and clinical regeneration. In this study, we intended to establish a simple, low cost and efficient method for the long-term self-renewal of mouse induced pluripotent stem (miPS) cells without using feeder-cells and adhesive proteins. Three scaffolds were selected for the long-term subculture of miPS cells over two months starting from passages 14 to 29: 1) a gelatin coated polystyrene (Gelatin-PS) that is a widely used scaffold for self-renewal of mouse embryonic stem (mES) cells; 2) a neutral hydrogel poly(N,N-dimethylacrylamide) (PDMAAm); and 3) a negatively charged hydrogel poly(2-acrylamido-2-methyl-propane sulfonic acid sodium salt) (PNaAMPS). Each passaged miPS cells on these scaffolds were cryopreserved successfully and the revived cells showed high viability and proliferation. The passaged miPS cells maintained a high undifferentiated state on all three scaffolds and a high level of pluripotency by expressing differentiation markers in vitro and forming teratomas in SCID mice with derivatives of all three germ layers. Compared to Gelatin-PS, the two hydrogels exhibited much better self-renewal performance in terms of high proliferation rate and level of expression of undifferentiated gene markers as well as efficiency in pluripotent teratoma formation. Furthermore, the PNaAMPS hydrogel demonstrated a slightly higher efficiency and simpler operation of cell expansion than the PDMAAm hydrogel. To conclude, PNaAMPS hydrogel is an excellent feeder-free scaffold because of its simplicity, low cost and high efficiency in expanding a large number of miPS cells in vitro.

--- ABSTRACT END ---

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[frequency of next (right) word to showed]

(1)155 that	(8)6 high	(15)3 reduced	(22)2 dense
(2)87 a	(9)5 significantly	(16)3 very	(23)2 distinct
(3)25 significant	(10)4 similar	(17)2 40%	(24)2 enhanced
(4)16 the	(11)4 statistically	(18)2 cardiomegaly	(25)2 good
(5)15 no	(12)3 decreased	(19)2 close	(26)2 greater
(6)13 higher	(13)3 increased	(20)2 complete	(27)2 moderate
(7)11 an	(14)3 prominent	(21)2 considerable	(28)2 more

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--- WordNet output for showed --- Overview of verb show The verb show has 12 senses (first 11 from tagged texts) 1. (136) show, demo, exhibit, present, demonstrate -- (give an exhibition of to an interested audience; "She shows her dogs frequently"; "We will demo the new software in Washington") 2. (63) prove, demonstrate, establish, show, shew -- (establish the validity of something, as by an example, explanation or experiment; "The experiment demonstrated the instability of the compound"; "The mathematician showed the validity of the conjecture") 3. (57) testify, bear witness, prove, evidence, show -- (provide evidence for; "The blood test showed that he was the father"; "Her behavior testified to her incompetence") 4. (43) show -- (make visible or noticeable; "She showed her talent for cooking"; "Show me your etchings, please") 5. (32) picture, depict, render, show -- (show in, or as in, a picture; "This scene depicts country life"; "the face of the child is rendered with much tenderness in this painting") 6. (24) express, show, evince -- (give expression to; "She showed her disappointment") 7. (24) indicate, point, designate, show -- (indicate a place, direction, person, or thing; either spatially or figuratively; "I showed the customer the glove section"; "He pointed to the empty parking space"; "he indicated his opponents") 8. (11) show, show up -- (be or become visible or noticeable; "His good upbringing really shows"; "The dirty side will show") 9. (7) read, register, show, record -- (indicate a certain reading; of gauges and instruments; "The thermometer showed thirteen degrees below zero"; "The gauge read `empty'") 10. (6) show -- (give evidence of, as of records; "The diary shows his distress that evening") 11. (2) usher, show -- (take (someone) to their seats, as in theaters or auditoriums; "The usher showed us to our seats") 12. show -- (finish third or better in a horse or dog race; "he bet $2 on number six to show") --- WordNet end ---