Hayflick等による"人胎児由来細胞の継代培養"実験報告の数学解析
6
0
0
全文
(2) . 北海道教育大学紀要 (第2部B) 第40巻 第1号 I I B) VO ion (Sec i t ty ofEducat lof Hokkaido Universi on l Jouma ‐l −40 , No. 平成元年10月 oc tober ,1989. 八江athemat ion of icaI Analysisof”The SeriaICul ivat t ” Human Diploid Cel I l strains (ExperimentaI Cel Research head.. 25 ) by L.Haynick and p‐ s‐ M oor‐ ,1961. Bun i TAKEDA j ido Un iver i i Sc i ion Laboratory,Hakodate Col l ty ofEducat s on ence Educat ege , Hokka Hakodate040. 人胎児由来細胞の継代培養″ 実験報告の数学解析. Hayf l i ck 等 に よ る. 武. 田. 文. 司. 北海道教育大学函館分校理科教育教室. Abstract. 123 ions ionshi ime (△T) and ce l l ln recent publ i lat cat p between generation t ,’’ the re ivi ion ( d ) have been explained wi位 various models‐ s n There lat ions l “ i i l ly presented w1tht i t l th theres l . l t ー athemat ca e con「elations wi s ps areln 5 of e× er ’ lstrains ialcul l ick eZ α乙4 (Tabl tures of a hm〔 ) of Haコガl nan diploid ce el p imentalser ‐. The results ofthe 立Iathematical analysis were asfo l lows: l lstrain g 1 tro andt he tal deVelopl1 lne requi red f l enti t re in−vi orce n cultt ] rowthinfe ‐ The ti lyequa l T b l ( 2 ) mothe s uterus wereapproximate a e ‐ 2 imerequi imi l ld ivi ion was tednu redto reachthel umber(n=50)ofce s . Thetotalgenerationt Th i d b m f 283days i h i t ht ぱ i df t h t f t a t e e l エ ー r o a w mer e c s e a e u s s e e r e o r e gr y g o q − −. ions and Ma Some Assuu icaIA」 i themat =a lys n npt s. Nol inearrelationcouldbees i l ivat tabl n )ofsubcu ionsandthe t shedbetween 故enumnber( t ialcul ivat ion wi impl l )inser t ththes i months( t was egraphsin Tabl e lof Hayf ck 鑑 αん a l ldi lat ion between( l temptedto determinethere t n )bythefol )and( at owing:. 1) (3.
(3) . iTA1 Bun qのA j. Tabl eI. ls ins Hi t 1 dcel to i i ra u □ nan d s r o l y ofhu P . ) i (Th sf rom HAYFLICK’and MOORHEAD4:p stablei ‐591. ・ Sな ÷ ain des i鱒lat ion. Fetus no .. M‐1. I. VVI−2 訳ノ ー−3 “ノ ー一4 VV1‐5 V江‐6 VVI−7 v ベ ア ー−8 ▽ ベ ア ー−9 VV1‐10 ▽▽.−11. 5 6 7. Kidねey Kid l ley Lung. 8. Ski n and mーusc1e. 4. ▽ ベ ノ ー−13 ▽ ベ ノ ー−14 VVI−15 訳ノ ー−16 訳乃一17. 9 10 11. . L皿g le Skin and musc Lung Kidねey M【 l usc e Hear t Thymusand せ] yroid ・ Skin. 2 3. ▽ ベ ノ ーー・2. Ti forigin ssueo. . ・. ハdonthsin ial ser ivat ionα t cul. 1 き. Ki d ー 事 ]ey Skin Kidねey . Lung Liver. . ▽▽.−20. 14. Ski n and musc1e. ▽ ベ ア ー一21 訳刀‐22 訳刀‐23 頓ノ ー−24 VV1‐25. 15 16 17 18 19. 日ea【 Heart Lung Lung LI 耳1g. No‐of i t ‐ subcul ions vat. 繋. 5 6 7 2‐5 5 8‐5 8・5 5c 5c. 35 29 33 10 25 32 29 32c 30c. 8 8 8 7‐5 8 5わ. 41 4〇 43 28 44 24わ. . . 5 1 8 7 6C. 26 5 55 39 38C. αCon i Se i l l l i df t dc t t t o r e sA) e co ー 篤t e r omf r o z e ns ck{ n v rr u uo u s s s a e s e e ypa ge ‐ ,n 0C OSe i da l l t t一7 0 i lco i i lc l i i fs a嵐l t t tc t t t t節r t r r v o u s s ag e ss o r e na onbu e sf omP e spa r o s o ughba c e r a n ami r a u va ono . cS fFe i l li l b 8 9 6 1 t t r nc t ぱea so l . l a u l y2 . ,1. lwi l ld i i 1) Ha videintotwoinagiven num口ber ofdays ∼ d n ck ef d.assu=nedthatanormalcel l latthe i l I M。(Moi t terthebegi凹面g ofates sthe we af ghtofthe 班ロtce ‐ VVhenthe 田dtce ion t l ldives ions l ls in of Mn af imet。= 0)growsto a ce ternce t sexpressed ra generat , M。i as:. Mn=. M。 ) 1 ‐−……………………………………………・……( og Mo ‐ ,log Mn=nlog2 + l. l li i imeof 化l entuptake perce s 1 1 a ) To accotmtfor 鱒ぐoWth,the weightPer 山国tt enut r ) ( ∼ edロパth 江1。− expre祭 l ld ionnmnber( ivi n ) ime(△T)i b l l目ng generation t ( ) Assu s sindependentofce ‐ db △T, i i l l ih From l l)一aandl l)ーb ,位ece we g tincrease per generat on sexpresse y mo. l ld i▽ i i ter n ce □ Qberi s expressed by s onsthetotalnui and af. −− 1 ‐. Thetota lce l l we ighti s: Mn =( −1 )mo △T十 M。 =2n mo △T ) 1og Mn ニlog( mo△T) ………………………………………………………… 叫…………….一2 iont ime ( ) t and 故etotalgenerat 。. 2) (3.
(4) . 公4athemat i l i i l ivat i caIAna softhe Ser t aICu ys on. t ) 3 n=△T,十△T2+ … … … +△Tn=n△T, n/n ……………………………………………( ,△T,=t n From equat ions( 1 M 1 2 )and( ) 3 = ( 2 / … ) … … … … … … … … … … … … … … … t … … ( 4 ) … , 0g 。 0g m。n n ions( 1 )and( 4 ) andf rom equat , log( t .… … … … …−… … … ….… … … ….…. ). .… … ….….…. .…( 5 ) n/n)=nlog2十log(M。/m。 Equt ion( )represent 5 inearre lat ionbetweenl 2n ion t sthel og( ・dertheassumpt 。/n)andnu1 thatDd。 and m。 are constant l i s e×pected that せl e valuesin Tabl e l of Hay ck 鷲 メー ‐ lt wa i ibutealonglog ( 2n i n )inalogar t t thロロcgraph th wouldd r s swasprovedto hold wi 。/n)∼( ‐ Thi WI−lto W1‐25in Table l a l lfa l l ing onthes ightl ineoflog( t ta n )andtheformula n/n)∼( ( n ) was calculated‐ t n=f i ▽▽ ht t he▽▽.−.l and▽▽.−16 values: 03 0 3 7 2 9 2 n… … … ….… ….… … … ….… … … … … … …. 2nt . −−.−− . ‐… …‐… …( ) 6 。/n=0−1383161×10‐ 2 n 0 3 0 3 7 2 9 n ‐ … … … … … …−.… …. ‐ . . . . ‐… … ….… … … ….… … … …( ) 7 ort n=(n/2)×0‐1383161×10 rom △Tn= tn−tn−, andf △T。=0‐1374591× (1‐0062345 )nx( 1+0−0062345n) … … … … … … … … … … … … … … … …( ) 8. ion Resdl tsand Conc11 l u s. Tabl iont ime(△Tn )andthetota lgenera− e 2 shows thecal culated values ofthe generat iont ime( t )‐ t 。 Totestt hi 1 1owingi idered; l i rein Tab1e l sforl釘ーu1a againstthein−Vitrocu1ti scons ,thefo. A〕. Referencesfor △T。andt 。:. ime wi i) Vvhen △T,<△T2< … … … <△Tnthegenerationt l lincrease with nirrespectiveof the assumption in l l)−b ‐ i i) t5i l l linfer i l i s21‐402daysin Tabl t e2 eavagedce zed eggs of huD駐ans do not ,butthec ionsintheuterushassho▽頃.that( )ri emargeby n=5and obse t .vat s5or6days 5 ‐ Therefore t f i ferencebetweenthenu ) from obse1vationsand compu‐ t u に nberofdaysat( , hed 5 ionsi tat s about15 days.. m) t50i imd ing nmc th n=50 asthe1 t ingsinthe experimentby s283・09days Wi nberofdoub1 Hayf l i ck eZ αZ ‐butbecomes268days when corrected by the15days to equalthe actual. l engthofthe embryomc stage‐ i t d corresponds Wi v) Likewi se( imereq l 晒redfor ththet I 3 0を亭 135days when co]ばected ar d ヒ 1 1 m i fthefe式i l i l lthe completion ofce i ld f ] nbryo 1 l ee ent o i ferent iat c deVelopI1 ion zed egg t inthefetus,andthecon「ectedt4。=213dayssuggeststhen・i国n1 ion Per iod necessary lalgestat forl ive bi r t コ h ‐. B〕. ingsin i卦vi imi 0nthel ted nu= tro cul □ nber of doubl t tu re: Ha∼n i i d h 廿 l k d l i i t i t t せ l ingsofhu l l a ereare m t c n ca e sto e nu u n 口berofdoubl sin o ゴ ロan ce. in‐ fphys iol t l 凪t ( 五a vi ro cultmre,i o厚calactivators arenotaddedtothec t 口 r e me . These ce l l doubl ing l imi l l t th ce s are50土1owi l s forln norlnal fetuses l ・nor nl ,30±loi. 3) (3.
(5) . iTAKEDA Bun j iont ime(△Tn ) Aurhorscal culated numbersfor 位e generat ime ( ). iont t andthetotalgenerat n. Tabl e2. (n ) I 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 ▲ 49 50 * 60 70 80 90 100 200 300 400 500. (m 『 △T n 0.1391784 0‐1409138 0‐1426655 0‐1444335 0‐1462180 0‐1480194 0‐1498371 0‐1516719 0‐1535238 0‐1553929 0‐1572793 0.1591832 0.1611047 0‐1630440 0‐1650013 0‐1669766 0‐1689701 0.1709819 0‐1730123 0.1750614 0‐1771293 0‐1792162 0‐1813222 0‐1834475 0‐1855922 0‐1877566 0‐1899407 0‐1921448 0‐1943690 0‐1966134 0‐1988783 0.2011637 0.2034700 0‐2057972 0.2081454 0‐2105150 0‐2129060 0‐2153187 0.2177531 0‐2202096 0.2226882 0‐2251891 0‐2277126 0‐2302588 0‐2328279 0.2354201 0‐2380355 ‐ 0‐2406745 0‐2433370 0‐2460234 考 * * 0‐2742424 0‐3050687 0‐3387208 0‐3754343 0‐4154634 1‐0705278 2‐5460646 5‐7696964 12‐658508. ラ X◎×△刷G鮒. 鴻X△需(卸) 4‐175 4‐227 4‐280 4.333 4.387 4‐441 4‐495 4‐550 4‐606 4‐662 4.718 4.775 4.833 4‐891 4‐950 5‐009 5‐069 5‐129 5‐190 5‐252 5‐314 5‐376 5‐440 5.503 5.568 5‐633 5‐698 5‐764 5‐831 5‐898 5.966 6.035 6‐104 6‐174 6‐244 6‐315 6‐387 6.460 6.533 6‐606 6‐681 6‐756 6‐831 6.908 6‐985 7‐063 7‐141 7‐220 7‐300 7.381 * * 8‐227 9‐152 10‐162 11‐263 12‐464 32‐116 76‐382 173‐091 379‐755. 4‐175 8‐402 12.682 17‐015 21.402 25‐843 30‐338 34‐888 39.494 44.156 48.874 53.649 58‐482 63‐373 68‐323 73‐332 78.401 83.530 88‐720 93‐972 99‐286 104‐662 110.102 115.605 121.173 126‐806 132‐504 138‐268 144.099 149.997 155.963 161‐998 168−102 174‐276 180‐520 186‐835 193.222 199.682 206‐215 212‐821 219‐502 226‐258 233‐089 239.997 246‐982 254‐045 261‐186 268.406 275.706 283‐087 * * 361‐488. 4) (3. ) t /1 2( ar ye n. t n(month). *. * 14‐959 18.193 21‐779 25‐751 95‐883 267‐766 664.683 1546‐838. *. * 1.247 1‐516 1‐815 2‐146 7.990 22‐314 55‐390 128‐903.
(6) . 5. M【 i lys i r l ia ICul ivat ion t athemat caIAna soft e Ser. i止vi l l l l t log i landf roce t iona ldeve lopment jori卦vi sand20±1oin ma roCe s ca tmct . Humanbio f iontodeathi i西dedintothrees rom concept tages:fetus l ld ivi ion sd jor s ,minor ,and ma ,andce i lthree stages. s presentinal Somestageso feggf i l i ioninc l ld i▽ i ion ludece ldetenninat [ ion thed i f ferent i er zat s ‐ ,se×ua. ,. ion o f cleavaged ce l l ion i at ; rat s s the charateristic , and growth in the uterus‐ Sexual matu. jor phenomenon of growth from minor to ma ‐ Thetrans i ionfro t ーm onestagetoanothernQay beinducedbysonqeprogral r l lnedstructure. l l thinthece imi ings( l ted nuumber ofdoubl n lof a fetusi l )in the ce wi s s 50 ‐ Thel ,asthetota finterna lprograms toinducegrowth: nu・nber ofsteps o lti ivided into20steps for ce l ld i iv ion l l mas teps for progression f sd s rom ce s to ,20s i t i ssue and organs ty‐ orsexual detennination and matu 二 r ,andlostepsf. REFERNC驚S 1‐ Takeda, B‐ ion‐ ISSN‐o288−3848)16 , Seibutsu Kyozai(Hokkaido Univ‐ of Educat , 139−154(1981)( ) japanese 2. Takeda ibut i17 ) su Kyoza ,Se ,B . ,31‐42(1982)Gapanese B 3‐ Takeda S i b K i1 2 8 7 ‐ 3 1 9 8 3 t 5 ( ) ( ) japanese , ‐ , e usu yoza , l i P 4. Hayf E l R S l C l t 2 5 5 ck,L‐ & Moorhead x e e s p ‐ ‐ ‐ , 85‐621(1961) , ‐ ‐ , l ick,L‐ l 5. Hayf l l ‐Ce ‐Res ‐37 ,Expt ,614−636(1965). 5) (3.
(7)
関連したドキュメント
平成30年度の全国公私立高等学校海外(国内)修
RNAi 導入の 2
ちな みに定理の名前は証明に貢献した数学者たち Martin Davis, Yuri Matiyasevich, Hilary Putnam, Julia Robinson の名字に由来する. この定理により Halt0 を
Kyoto University, Kyoto,
妊婦又は妊娠している可能性のある女性には投与しない こと。動物実験(ウサギ)で催奇形性及び胚・胎児死亡 が報告されている 1) 。また、動物実験(ウサギ
強化 若葉学園との体験交流:年間各自1~2 回実施 新規 並行通園児在籍園との連携:10園訪問実施 継続 保育園との体験交流:年4回実施.
自由報告(4) 発達障害児の母親の生活困難に関する考察 ―1 年間の調査に基づいて―
育児・介護休業等による正社