ŶŮŢŨŢŻŪůŦġŪŴŴŶŦġljĸ Ĵķ ਓ˗ੇ ࡃ 新ቊᆡ ᒯ㍦㜔⨹ ݨ ᆎᇯಞ The vessel used to store stem cells in spheroids թҳ，ҁჅҝԴ྅४ु ٿ ϯգԺ༵ দЂॎ， ڭ ᖔఀ ॊᐯध的 ێ。ܠߺ Кҁ ۖر Йቮঋ ڶ ᓥցᄂไᏳ४౧ ԆைᏳ，ӺକᇯࢺϠॣ ྅४ ྲـا ۶ࠜ งᢜҳை Ᏻ的ҳ࿚ԯЄ。ഺዹҞԴᇟ౧Ԇϭ་֖ Ϡॣ ྅४ᅁ ᢚѽۤఀ ـ ፁ的ຕ ，ލ ԯऎ׀ӡஜ ߏ ไᏳ४౧Ԇை Ᏻྻ ᠩ྅४的ᗜؖ ᕕӡ。 ి ఱЫЏ ࠑ գᝯ྅४ु ٿ 的Ꭲћ ࠕ ķıፔ，գൊ жҏ ݺ Ϙࣹ ॊᐯᛔራ，ҒࣁȮBiomaterialsȯ、ȮNature Methodsȯ、ȮNature Biotechnologyȯ、ȮCell Stem Cellȯ、ȮPNASȯфȮStem Cell Reportsȯຈ，Ԣᐾգ Ժ༵ ށ ׀。 ྅४ቮঋᇟ的ைᏳ౧Ԇ۶ѕ的ਫ਼。ࠜ Ⴛᓮ྅ ४ቮঋֽ ড়ᔼႻ，Й֭ ӎ ހ ȞஜቄҞႿዴպ甚 ϯϼग़Юȟ，փѷᑟϯգ౧ ڼ নۘ ៸௲ў 。ޱ ь༓ ࡋ Ҟ ݸ ԴைᏳಬ，֭ ЙକჅ ĵĹ Ј，Й๒྅४ྻ ࢝ أ ժϸ。 ijıljĶ Ր，ి ఱ的ϘৎᐯӠӡ྅४༰ᇸಧु ٿ ҹে ԴĴŅ౧Ԇϭ的પ ，ݑ ᅁᢚ؆ࢢ，ҁ ႅد գ྅४ಧ 的ႏᇒ ݸ Դᅁᢚҭϯ。Ϙৎ࣐งࢢ，ҁੋ ႏᇒ，ᣍᅅ ४的 ߐ ，ӎѽऎ४ൌժఫ，ຕ ҄ࡒލ ҁЂԫϘᢘȈႆ ব的྅४ಧЪ๒Յࣿ ，ٟ գԇ֣ ४ժϸ的Ⴋ。ġ ి ఱఀ ఉઐਿࢢබٙ ֖་ܠ ಎϢु 。ٿ ຕ ލ ，྅ ४ಧԴ௱ϭҞ࠲Յࠜ Ⴟ ljlj ч，ѷ४Յࣿ ತႿ ĺıĦ ѽϯ。୫ᅆഺϘ，ి ఱѧඔሲȈȶ྅४ᢏಧ ߐ 的බՀᄊஜ ་ߏ Ϣҋ્ ߐ ᅗ。४Ϙଠ࣏Դ៷ѩ Ĵĸ࢘་֖ ைᏳ，֭ ݸ Դϯ，࢘බফ࢈，Ђ࿄ ៷ѩijĶ࢘ҽҠ，ഺৎ，ಧࢢ的४ᇸ༰ᄥ，ġ ফֲ҃ ᘁ，࠲Յକ༓。ȷġႍ ҞӲႋٙ ྅४ቈႻᓮᅆֽ ড়的 ڶ ᓥ，഼Ⴥ ྅ڹ ४ᇸ༰ಧබକԴ௱ϭႻ݀ ѵधԧԳ，ӡ ݺ ॊ ᐯु ݕٿ ᗜؖ ᖚ， ࠅ ዴग़Ю。 łůġ łŤŤŪťŦůŵŢŭġ ŃųŦŢŬŵũųŰŶŨũ Stem cells require precise culture conditions and careful nurturing. !ey need to be frozen before long-distance transport, which can cost hundreds, sometimes even thousands of, US dollars. Moreover, airlines have regulations concerning the manner in which stem cells can be carried onto a plane. A small amount of cells can be stored in culture tubes. However, exposure to ambient conditions for more than 48 hours will cause the cells to quickly lose their functions and viability. In 2015, one of Prof Xu’s students conducted an experiment. He prepared stem cells to form spheroids and then studied their properties under 3D condition. A&er the experiment was over, he le& the test tube that contained the cells in the laboratory. One week later, he went back to check the test tube, expecting to see only dead cells. But what he found astonished him. !e cells in the tube were still alive, without showing any signs of dying.
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