2016幎ã®ããŒãã«è³åè³è ãçºè¡šãããŸãããæ¥æ¬ã®å€§é ãããããªãŒããã¡ãžãŒãã§å»åŠã»ççåŠè³åè³ã決å®ããŸãããããããŒããã§ããããšããã§ããã®ããŒãã«è³ã§ãããæ¯å¹Žæååè£ãšããã®ãããã£ãŠããŸãããã¹ã³ãç³»ãšãããšæ¥æ¬ç§åŠæªæ¥é€šãäºæ³ããŠããŸããããã¡ããããããã®ç§åŠåéãžã®ãªãµãŒãåããã£ãŠã®ããšã§ãç°¡åã«ã¯ããã§ãããã«ããªãã§ããªããã ããŸããäºæ³ãã£ããããããªããããããªãŒãšããã話ã§ããããŸãããŒã
|
ããŒãã«è³ã¯ããã€ããã€ãã®çºæè ãšããŠç¥ãããã¢ã«ãã¬ããã»ããŒãã«(åç)ã®éºèšã«åŸã£ãŠ1901幎ããå§ãŸã£ã |
æ¯å¹Ž10æã®åæ¬ã¯ããŒãã«è³é±éã§ããããŸããã¹ãŠã§ãŒãã³ã®ããŒãã«è²¡å£ãããã®å¹Žã®ããŒãã«è³ã®åè³è ãçºè¡šããã®ã§ããªãç¹ã«ãç§åŠ3è³ãšãããããå»åŠã»ççåŠè³ãååŠè³ãç©çåŠè³ã¯ãæ¥æ¬äººã®åè³è ãè¿å¹Žå€ããšããããšããããæ³šç®ãããŸãããŒãã§ã2016幎ã¯çްèã飢é€ç¶æ ã«ãªããšã现èå ã®ç©è³ªãåè§£ããŠå掻çšãããšããããªãŒããã¡ãžãŒ(AutophagyïŒèªé£)ã®ä»çµã¿ã®è§£æãã§å€§é å çãåè³ã§ãããããã®åè³ã«ãªã£ãè«æã¯ã奥æ§ãå ±èã ããã§ã倧é 倫劻ã§åè³ã§ãããã£ããããã? ãã¥ãªãŒå€«åŠ»ã¿ããã§ããšæããŸãããããŸããããã¯ã§ããããšãããã®ã§ãããã
ãšããã§ããã®ããŒãã«è³é±éã«ãªããšããã¹ã³ãããããŒãã«è³ã·ãããã«å ¥ããã§ããªãç¹ã«æ¥æ¬äººã§åè³ããããªäººã®ãšããã«ã¯ãåæã¹ã¿ããã貌ãä»ãã®ã ããã§ãåè³ãç¥ãããé»è©±(é»è©±ãªãã§ãããããã)ãããã£ãŠããŠãåãçããããåè³æ±ºå®ã®ç¬¬äžå£°ããçµµãã«ããã®ãããã£ãŠããããã§ããå察ã«ãç§åŠã«åŒ·ããæ°å°ãªãèšè ãåºæã£ã¡ããã®ãããã®ææãªã®ã§ããããŸãã
ãã®ãããŒãã«è³ã·ãããã®ææãšããŠæãåºãã®ãã2008幎ã®çå·ããã®ç©çåŠè³æ±ºå®ã®ãšãã®æ åã§ãããã®ãšãçå·ãããã倧ããŠãããããªããããã³ã¶ãŒã€ããªããŠãããªããããšãã©ããŠã¿ããã®ãæŸéãããŸããããããã¯ãããŒãã«è²¡å£ããã®é»è©±ããçå·ããããããããç¡ç€Œãã ã£ãã®ã§ãã¶ã¡ããããŠãããããã ããã§ããããããããã§ããªãé»è©±ãåããŠãããããšãããããŸãããããã1æéåŸã«çºè¡šããªã®ãããšãããããããªã®ã¯ãåæã¹ã¿ããã貌ãä»ããŠãªããšã§ããªãããšã§ããããŸãã
ããŠããã®ã¹ã¿ãã貌ãä»ããå¯èœã«ããã®ããããŒãã«è³åè³è ã®äºæ³ã§ããããŸããããŒãã«è³ã¯ãæ¬åœã«ãçŽåãŸã§åœäºè ã«ããç¥ããããªãããã§ããããŸããäžéЬè©ãšããã®ãããããããããã§ããªã
ãã¡ããããã¹ã³ããç§åŠæè¡æ¯èãªã©ãæ¥ã«ãããŠããã£ãããæ¹ã ã¯ãå°éå®¶ãéã£ãããäŸé Œããããç¬èªã®åæããããããŸãããããããããªã«ãããããŠãã£ãŠããã£ãããããã§ããããããããŒã®äººã«ã¯ããããªããšã¯ã§ããŸãããããããããæ°èã®ãäºæ³ããèŠãŠããããªãããŒãšããã®ãã»ãã®å±±ã§ããããŸãããã ãããã ãšããªããšãããããäžçã®ã¹ãŽã€ç ç©¶ãããæ¥æ¬ã®ã¹ãŽã€ç§åŠè ãããªããªãããããªãããã§ããªãããã¡ã£ãšãªããšããªããããããšããããã§ããããããããªã«ãããªãã¯ã¿ã¯ã·æµã®ãäºæ³ãã£ããã¡ãããšã玹ä»ããããŸãããŒã
äºæ³ãã£ããã®1: ã³ããªã¡ãã«åè³è ããã§ãã¯
ããŒãã«è³ãåè³ãããããªç ç©¶ã¯ããããŠãããŒãã«è³ä»¥åã«èåãªè³ãåè³ããŠããŸãã
èåãªè³ãšãããšãããšãã°è±åœã®18äžçŽããããã³ããªã¡ãã«(Copley Medal)ããããããŸãã20äžçŽã«å§ãŸã£ãããŒãã«è³ä»¥åã¯æãèåãªè³ã§ããããŸãããããŒãã«è³ä»¥åãããã£ãã®ã§ããã³ãžã£ãã³ã»ãã©ã³ã¯ãªã³ãšããã€ã±ã«ã»ãã¡ã©ããŒããã£ãŒã«ãºã»ããŒãŠã£ã³ãªã©ã®å€ãèåç§åŠè ãåè³ããŠãããŸãã
ãã ãããŸãæš©åšããããããŸããããããšãã°ã1997幎ã®ããŒãã«è³ã®ãŠã©ãŒã«ãŒãã2012幎ã®ã³ããªã¡ãã«ã2010幎ããŒãã«è³ã®ã¢ã³ãã¬ã»ã¬ã€ã ã2013幎ã«ã³ããªã¡ãã«ã2013幎ã«ããŒãã«è³ã®ããã°ã¹ãã2015幎ã«ã³ããªã¡ãã«ãšããããããããããŒãã«è³ãã³ããªã¡ãã«ã®äºæ³ãããããšããããšãèµ·ãã£ãŠãããŸãã
ãŸãããŒãã«è³ããšã£ãŠãªã人ã§ãæè¿ã®ã³ããªã¡ãã«ã®åè³è ã ãšããã©ãã¯ããŒã«ã®ç¹ç°ç¹ã®ããžã£ãŒã»ãã³ããŒãºãšããã¹ãã£ãŒãã³ã»ããŒãã³ã°ããããŸããªããã ãäºäººãšãå®èšŒãé£ããçè«ãäœã£ãåŠè ãªã®ã§ããã®ç¹ã¯ããã©ããããããŸãã(ããŒãã«è³ã¯çè«ãå®èšŒããããšåè³ããããããã°ã¹ç²åã®ããã°ã¹ãããããã ã£ã)ã
ã»ãã«ãã³ããªã¡ãã«åè³è ã®ãªã¹ã(Wikipediaãæ¥æ¬èªã§èªããã®ã§äŸ¿å©ã§ããª)ãèŠããšã2016幎ã³ããªã¡ãã«ã®ãªãã£ãŒãã»ãã³ããŒãœã³ãã(è¶ äœæž©ã§ã®é»åé¡åŸ®é¡ã䜿ã£ãã¿ã³ãã¯è³ªã®ç²ååäœã®æ§é è§£æ)ãªããããšããããªæãã§ããªã2014幎ã³ããªã¡ãã«ã®ã¢ã¬ãã¯ã»ãžã§ãã§ãªã€ãºãã(ææè¿œè·¡ã«ã䜿ããDNAæçŽæ³ã®éçº)ãææããã«ã¿ããŸãã
äºæ³ãã£ããã®2: ãã ãœã³ã»ãã€ã¿ãŒåŒçšæ èªè³ããã§ãã¯
ããŒãã«è³åè³è äºæ³ã§ããããšããããããã®ãããã ãœã³ã»ãã€ã¿ãŒåŒçšæ èªè³ã§ããç±³åœã®èª¿æ»å ±éäŒç€Ÿã2002幎ãããããŒãã«è³ã®çºè¡šã®çŽåã®9æäžæ¬ã«çºè¡šããé²éªšã«ããŒãã«è³äºæ³ãããã£ãæãã®è³ã«ãªã£ãŠãããŸãããã ãããç¬ç«ããåŠè¡è³ãªãã§ããã©ããã§ããã¡ãã¯ãç§åŠè«æãã©ãã ãã»ãã®è«æãããã§ãã¯ãããŠããããçµ±èšçã«èª¿ã¹ã䟡å€ããè«æãçºè¡šããŠããã£ãŠãªããã§ããã°ãŒã°ã«æ€çŽ¢ã§äžäœã«ãããšããã®ãšããŸã䌌ãŠãŸããªããã ãäžäœ0.1ïŒ ã§ã700人ã«ããªã(ååŠåé)ãªã®ã§ãããããçµã蟌ãã§åè³è ãæ±ºããã®ã¯ãç®å©ããªã¿ãªããããã£ãŠããããã§ããããŸãã
2011幎ã®ããŒãã«è³ã¯åè³è ãã¹ãŠãããããŸã§ã«ãã ãœã³ã»ãã€ã¿ãŒåŒçšæ èªè³ãåè³ããŠããŸããããä»åã®å€§é ããã2013幎ã®ãã ãœã³ã»ãã€ã¿ãŒåŒçšæ èªè³ãåè³ããŠããŸãããiPS现èã®å±±äžããã2010幎ã«åè³ããŠããŸãããããããšã§äžéã«ãæåã«ãªã£ããçååŠç ç©¶æã®ç«¹åžããã2012幎ã®ãã ãœã³ã»ãã€ã¿ãŒåŒçšæ èªè³ã®åè³è ã§ãããã è¬ã£ãŠããã ãã®å çãããªããäžççãªç ç©¶è ã ã£ãŠããšã¯ããããã®ã§ãããããŸããªããããããŸèª¿ã¹ãŠãã£ããã ãã©ã倧æ±ã
ä»åŸãææãããªäººã¯ããŸãã¿ããªããªãã§ããããã©ãå人çã«ã¯ã倪éœç³»å€ã®ãµã€ãã®ææã«ãåããŠææãçºèŠããããã€ãšãŒã«ãã(2013幎åè³)ãã»ã¡ã³ãã黿°ã®éããããç©è³ªã«å€ããããšã«æåãã现éãã(2013幎åè³)ããªããŠã ã»ã€ãªã³é»æ± ã®çºæè ã®ã°ããã€ãããã(2015幎åè³)ããããããããã§ããã
äºæ³ãã£ã: ãã®ã»ã
ããŠã2ã€æžããããçµæ§ã«ãªã£ãŠããŸããŸãããããããç§åŠã®åœéè³ã¯ã»ãã«ããããããããŸããæ¥æ¬ã ãšãåœãåºããŠããæåå²ç« ã«ã京ã»ã©é¢ä¿ã®äº¬éœè³ãææ¥æ°èã®ææ¥è³ãç©çéšéã§ã¯ä»ç§è³ãããããã§ãã¯ã§ãããããã
æµ·å€ã ãšãã³ããªã¡ãã«ããã ãœã³ã»ãã€ã¿ãŒåŒçšæ èªè³ã®ã»ãã«ã¯ãã€ã¹ã©ãšã«ã®ãŠã«ãè³ãªããŠã®ããããŸããã»ãã«ããããŒãã«è³åŠè ãéå»ã«åè³ããåœéè³ãéã«ãã§ãã¯ãããšããã®ããããŸããªãŒããããããšããWikipediaã¯æ¬åœã«äŸ¿å©ãè±èªã®ãŸãŸã®ããŒãžããã£ãšç¿»èš³ãããªãããã(ä»åæ¬é¡ãã)ã
ããŠããŠãããŒãã«è³ã«ãããããå 端ç§åŠã¯é£ãããã®ããããŸããã§ãè³ã決ãŸã£ãŠãã調ã¹ããšãããŒãŒããããããããšãªããã¡ãªãã§ããããŸããè³ããå ã«ãåæã«èª¿ã¹ãŠãã»ã»ãŒããšæãã®ã¯ãªããªã楜ãããã®ã§ããããŸãã
ãããã2015幎ã®å€§æããã®ããã«ãç¬ã®å¯çè«é§é€è¬â人éã«ãå¹ãã¹ã²ãŒè¬ããšããäžæãããèµ€åŽããã倩éãããã®ãå®¶ã«æ¥éã«å ¥ã£ãŠããçœç±é»çé§é€(ã¡ãã)ã®éè²LEDããªã©ãéåžžã«èº«è¿ãªãã®ããå 端ç§åŠã£ãŠããšããããŸãã
ãã£ãšããè¶ é£è§£ãªãåéšããã®ãèªçºç察称æ§ã®ç Žãããšãã2016幎ã®ãããããžã«ã«çžè»¢ç§»ããªããŠã®ããè³ã®ãããã§åºã解説ããããŠããããŒã®äººéã§ã楜ãããããã«ãªãã®ã¯ããããšã§ããªããšããããšã§ãããŒãã«è³ã§ããã¶ã楜ãããŸãã
ãªããããŒãã«è³ã®æäžã¯12æã§ããããŸãããããŸã§ã®æ¥œãã¿æ¹ãšããããŒãã«è³ãã®ãã®ã®ãŠã³ãã¯ãªã©ããåã«æžããŸããã®ã§ãæ¯éãåç §ããã ããã°ãŒãŒ! ãšããæ¬¡ç¬¬ã§ãã
èè ãããã£ãŒã«
æ±æå é(ãã®ã®ããããã)
ç§åŠç³»ãã¥ã¬ãŒã¿ãŒã
ãã£ã¡ã®è©±é¡ãšããã£ã¡ã®æ å ±ããã£ã€ããŠããããããããæ¥çã®äººã倩æãå®å®ç³»ãäž»ãªãã£ãŒã«ããšããã倩æãã¥ãŒã¹ããããšãçªç¶å¿ãããªããçãçãããã幎霢äžè©³ã§ãã¢ã€ãã«ã®ã³ã³ãµãŒãã«ãè¡ãããŒããŒã ãããŸããã®ãããªç§åŠè ãšãç¥ãåããå®ãè²·ããæ°æžãæããäžåºŠæ¬ãè³æãèªããšãã©ãã«äœãæžããŠãã£ããèŠããã®ãç¹æãã ãã现ããå 容ã¯ãã®å Žã§å¿ããã
