Le#rôle#essentiel#des#cellules#endocrines#de#l’intestin#
Les#travaux#de#chercheurs#de#l’IGBMC#(unité#mixte#CNRS#/#Inserm#/#Université#de#Strasbourg)#
et# de# l’Unité# Inserm# U682# de# Strasbourg# publiés# dans# Journal# of# Clinical# Investigations,#
démontrent#pour#la#première#fois#que# les#cellules#endocrines#présentes#dans#le#tube#digestif#
sont#essentielles#à#la#vie.#
#
1%2*34$&52*6&7&832*5(7*937(76*97(6:";<*(*';27';3*=*63)27#&%27*4$2<<2>*>"%)*<2>*'"%>34$2%'2>*
6?$%2* (@>2%'2* )")(<2* 62* >3'73)&"%* 2%6"'7&%2* 6(%>* <?&%)2>)&%A* B"$7* '2<(* 2<<2* (* 63C2<"553* $%*
#"6D<2*62*>"$7&>*'"#5<D)2#2%)*635"$7C$2*62*'2<<$<2>*2%)37"E2%6"'7&%2>F*62*<?&%)2>)&%*87G<2*($*
'H<"%F*2%*&%(')&C(%)*>53'&I&4$2#2%)*6(%>*<?&%)2>)&%*$%*I(')2$7*62*)7(%>'7&5)&"%F*<(*%2$7"83%&%2*JA*
K?35&);3<&$#*8(>)7"E&%)2>)&%(<*'"%)&2%)*($*#"&%>*6&L*)M52>*62*'2<<$<2>*2%6"'7&%2>*6&II372%)2>F*4$&*
"%)* <(* 5(7)&'$<(7&)3* 6?G)72* &>"<32>F* 35(75&<<32>* 5(7#&* <2>* ($)72>* '2<<$<2>* 6&82>)&C2>A* N&2%* 4$2*
72573>2%)(%)* +*O* >2$<2#2%)* 62>* '2<<$<2>* 6$* 72CG)2#2%)* 6$* )$@2* 6&82>)&IF* '2>* '2<<$<2>* 2%)37"E
2%6"'7&%2>*I"%)* 62*<?35&);3<&$#*8(>)7"E&%)2>)&%(<*<2*57&%'&5(<* "78(%2*2%6"'7&%2A*P57D>*$%* 725(>F*
';(4$2*)M52*62*'2<<$<2>*>3'7D)2*$%2*;"7#"%2*6&II372%)2*Q8(>)7&%2F*8;73<&%2F*>3'73)&%2F*8<$'(8"%E
<&R2* 525)&62STF* 4$&* 5(>>2* 6(%>* <(* '&7'$<()&"%* >(%8$&%2* 2)* 738$<2* <(* 6&82>)&"%A* !2>* ;"7#"%2>*
52$C2%)* 5(7* 2L2#5<2* 2%)7(U%27* $%* 2II2)* 62* >()&3)3F* 63'<2%';27* <(* C&6(%82* 62* <?2>)"#('* "$*
>)&#$<27*<(*>3'73)&"%*6?&%>$<&%2*5(7*<2*5(%'73(>A*K2*7H<2*62*'2>*'2<<$<2>*3)(&)*V$>4$?=*573>2%)*>"$>E
2>)*'(7*<2>*;"7#"%2>*4$?2<<2>*>3'7D)2%)*"%)*62>*I"%')&"%>*4$&*>2*72'"$52%)F*2)*<?&%(')&C()&"%*
62>*8D%2>*'"6(%)*5"$7*'2>*;"7#"%2>*"$*<2$7>*73'25)2$7>*2%)7(U%2*52$*62*)7"$@<2>*C&>&@<2>*';2W*
<?(%&#(<A**
!2))2* 34$&52* (C(&)* 63V=* #"%)73* 4$2* <(* %2$7"83%&%2*JF*I(')2$7*62*)7(%>'7&5)&"%*57"E2%6"'7&%2F*
V"$2* $%* 7H<2* '<3* 6(%>* <(* 6&II372%'&()&"%* 62>* '2<<$<2>* 2%6"'7&%2>* 6$* 5(%'73(>* 2)* 62* <?&%)2>)&%* ($*
'"$7>* 62* <?2#@7M"82%D>2A* !252%6(%)* <2>* >"$7&>* 63I&'&2%)2>* 2%* '2* I(')2$7* #2$72%)* 7(5&62#2%)*
(57D>* <(* %(&>>(%'2* 6?$%* 6&(@D)2* >3CD72F* 6$* I(&)* 62* <?(@>2%'2* 62* '2<<$<2>* 2%6"'7&%2>* 6(%>* <2*
5(%'73(>A*K2>*2II2)>*62*<(*%2$7"83%&%2*J*>$7* <?&%)2>)&%*6?(%&#($L*(6$<)2>*%?(C(&2%)*6"%'* V(#(&>*
5$* G)72* 3)$6&3>A* K2* #"6D<2* (%&#(<* 63C2<"553* 2)* (%(<M>3* 5(7* 92"78* X2<<&)W27* 6(%>* <?34$&52F*
527#2)*'2>*2L5<"7()&"%>*5$&>4$2*<(*%2$7"83%&%2*J*%?2>)*&'&*&%(')&C32*4$2*6(%>*<?&%)2>)&%A*Y<*&%6&4$2*
4$2* <(* %2$7"83%&%2* J* '"%)7H<2* <(* 6&II372%'&()&"%* 62>* '2<<$<2>* >"$';2>* 2%* '2<<$<2>* 2%)37"E
2%6"'7&%2>* 6(%>* <?35&);3<&$#* &%)2>)&%(<* (6$<)2* 2%* 52753)$2<* 72%"$C2<<2#2%)A* K2>* '"%>34$2%'2>*
62* '2))2* &%(')&C()&"%* >"%)* #(V2$72>* 5$&>4$2* <(* #"&)&3* 62>* >"$7&>* #2$72%)* 6(%>* <(* 572#&D72*
>2#(&%2* 62* C&2* '"%>3'$)&C2#2%)* =* <?(@>2%'2* 62* '2<<$<2>* 2%)37"E2%6"'7&%2>A* K2>* (%&#($L* 4$&*
>$7C&C2%)*=*'2*63I&'&)*"%)*$%*72)(76*62*'7"&>>(%'2*"7)(%)F*$%2*#(<(@>"75)&"%*62>*87(&>>2>*2)*
$%2*(<)37()&"%*6$*#3)(@"<&>#2*6$*8<$'">2A*Z2*5<$>F*<2>*(%(<M>2>*73(<&>32>*>$7*<2>*>"$7&>*(6$<)2>*
"%)* 73C3<3* 4$2* <2>* '7M5)2>* 62* <?35&);3<&$#* &%)2>)&%(<* 4$&* (@7&)2%)* <2>* '2<<$<2>* >"$';2>* >"%)*
;M527)7"5;&32>*';2W*<2>*>"$7&>*#"6&I&32>*2)*<2*72%"$C2<<2#2%)*'2<<$<(&72*2>)*(''3<373A**
!2))2* 3)$62* 63#"%)72* <(* I"%')&"%* C&)(<2* 62>* ;"7#"%2>* >3'73)32>* 5(7* <2>* '2<<$<2>* 2%)37"E
2%6"'7&%2>*2)*<2$7*7H<2*6(%>*<?(@>"75)&"%*62>*<&5&62>F*<2*#3)(@"<&>#2*3%2783)&4$2*2)*<2*#(&%)&2%*
62*<?35&);3<&$#*&%)2>)&%(<A*[<<2*(55"7)2*$%*%"$C2<*3'<(&7(82*>$7*<(*6&82>)&"%*2)*<2*#3'(%&>#2*62>*
#(<(@>"75)&"%>F*%")(##2%)*';2W*<2>*5()&2%)>*(M(%)*$%2*#$)()&"%*6$*8D%2*62*<(*%2$7"83%&%2*JA*
*
Loss of enteroendocrine cells in mice alters lipid absorption and glucose homeostasis and
impairs postnatal survival
Georg Mellitzer, Anthony Beucher, Viviane Lobstein, Pascal Michel, Sylvia Robine, Michèle
Kedinger, and Gérard Gradwohl
The Journal of Clinical Investigation Volume 120 Number 5 May 2010
Immunofluorescence,sur,coupe,
de,d’intestin,grêle,de,souris,
révélant,les,progéniteurs,
endocrines,exprimant,le,facteur,
de,transcription,Neurogenin3,
(rouge),dans,les,cryptes,
intestinales,et,les,cellules,
endocrines,à,,Sérotonine,(vert).,,
*