The human ASCL2 gene escaping genomic imprinting and its expression pattern

被引:30
作者
Miyamoto, T [1 ]
Hasuike, S [1 ]
Jinno, Y [1 ]
Soejima, H [1 ]
Yun, K [1 ]
Miura, K [1 ]
Ishikawa, M [1 ]
Niikawa, N [1 ]
机构
[1] Nagasaki Univ, Sch Med, Dept Human Genet, Nagasaki 852, Japan
关键词
ASCL2; imprinting; expression; placenta;
D O I
10.1023/A:1015362903486
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
The mouse achaete-scute homolog-2 gene (Ascl2 or Mash2) encodes a transcription factor playing a role in the development of the trophoblast. The Ascl2 is an imprinted gene with maternal expression and assigned to an imprinting gene cluster region (ICR) at a distal region of mouse chromosome 7. We previously isolated a phage clone carrying the human homolog, ASCL2, and mapped it to human chromosome 11p15.5, a human ICR. In the present study, we demonstrate the expression patterns of the human ASCL2 in the fetus at a stage between first and second trimesters and in the placental tissues. In addition, it has been shown that the human ASCL2 gene escapes genomic imprinting.
引用
收藏
页码:240 / 244
页数:5
相关论文
共 15 条
[1]   The human Achaete-Scute homologue 2 (ASCL2,HASH2) maps to chromosome 11p15.5, close to IGF2 and is expressed in extravillus trophoblasts [J].
Alders, M ;
Hodges, M ;
Hadjantonakis, AK ;
Postmus, J ;
vanWijk, I ;
Bliek, J ;
deMeulemeester, M ;
Westerveld, A ;
Guillemot, F ;
Oudejans, C ;
Little, P ;
Mannens, M .
HUMAN MOLECULAR GENETICS, 1997, 6 (06) :859-867
[2]   GENOMIC IMPRINTING OF MASH2, A MOUSE GENE REQUIRED FOR TROPHOBLAST DEVELOPMENT [J].
GUILLEMOT, F ;
CASPARY, T ;
TILGHMAN, SM ;
COPELAND, NG ;
GILBERT, DJ ;
JENKINS, NA ;
ANDERSON, DJ ;
JOYNER, AL ;
ROSSANT, J ;
NAGY, A .
NATURE GENETICS, 1995, 9 (03) :235-242
[3]   ESSENTIAL ROLE OF MASH-2 IN EXTRAEMBRYONIC DEVELOPMENT [J].
GUILLEMOT, F ;
NAGY, A ;
AUERBACH, A ;
ROSSANT, J ;
JOYNER, AL .
NATURE, 1994, 371 (6495) :333-336
[4]   GENOMIC IMPRINTING OF P57(KIP2), CYCLIN-DEPENDENT KINASE INHIBITOR, IN MOUSE [J].
HATADA, I ;
MUKAI, T .
NATURE GENETICS, 1995, 11 (02) :204-206
[5]   MOSAIC AND POLYMORPHIC IMPRINTING OF THE WT1 GENE IN HUMANS [J].
JINNO, Y ;
YUN, KK ;
NISHIWAKI, K ;
KUBOTA, T ;
OGAWA, O ;
REEVE, AE ;
NIIKAWA, N .
NATURE GENETICS, 1994, 6 (03) :305-309
[6]   2 RAT HOMOLOGS OF DROSOPHILA-ACHAETE-SCUTE SPECIFICALLY EXPRESSED IN NEURONAL PRECURSORS [J].
JOHNSON, JE ;
BIRREN, SJ ;
ANDERSON, DJ .
NATURE, 1990, 346 (6287) :858-861
[7]   UNIPARENTAL DISOMY IN HUMANS - DEVELOPMENT OF AN IMPRINTING MAP AND ITS IMPLICATIONS FOR PRENATAL-DIAGNOSIS [J].
LEDBETTER, DH ;
ENGEL, E .
HUMAN MOLECULAR GENETICS, 1995, 4 :1757-1764
[8]   DISRUPTION OF IMPRINTING CAUSED BY DELETION OF THE H19 GENE REGION IN MICE [J].
LEIGHTON, PA ;
INGRAM, RS ;
EGGENSCHWILER, J ;
EFSTRATIADIS, A ;
TILGHMAN, SM .
NATURE, 1995, 375 (6526) :34-39
[9]   AN ENHANCER DELETION AFFECTS BOTH H19 AND IGF2 EXPRESSION [J].
LEIGHTON, PA ;
SAAM, JR ;
INGRAM, RS ;
STEWART, CL ;
TILGHMAN, SM .
GENES & DEVELOPMENT, 1995, 9 (17) :2079-2089
[10]   A SacII polymorphism in the human ASCL2 (HASH2) gene region [J].
Miyamoto, T ;
Jinno, Y ;
Miura, K ;
Sengoku, K ;
Soejima, H ;
Yun, K ;
Yaginuma, Y ;
Niikawa, N ;
Ishikawa, M .
JOURNAL OF HUMAN GENETICS, 1998, 43 (01) :69-70