PMID- 9196061 OWN - NLM STAT- MEDLINE DCOM- 19970721 LR - 20161124 IS - 0006-291X (Print) IS - 0006-291X (Linking) VI - 235 IP - 1 DP - 1997 Jun 9 TI - Expression of the proliferation-related Ki-67 mRNA in the early development of murine embryo. PG - 191-6 AB - In a search for early lymphoid-specific genes, we isolated a cDNA clone (LL7) encoding a murine homologue of Ki-67 protein, a proliferation-related nuclear antigen. LL7 transcript appears preferentially in lymphoid organs as the bone marrow, spleen, and the thymus. Here, we studied the expression of murine Ki-67 (mKi-67) mRNA among various organs or tissues during the early development of fetus. In fetus, mKi-67 mRNA appears developmentally as early as day 11 and is expressed maximally at day 15. In situ hybridization on the section revealed that the expression of mKi-67 mRNA is preferential in the area of active organ formation such as neurological system and the fetal liver. These results suggest that mKi-67 plays an important role in the proliferation of early embryonic precursor cells of neurological and immune systems. FAU - Mitsuyoshi, S AU - Mitsuyoshi S AD - Department of Immunology, Kumamoto University School of Medicine, Honjo, Japan. FAU - Igarashi, H AU - Igarashi H FAU - Sakata, A AU - Sakata A FAU - Koseki, H AU - Koseki H FAU - Taniguchi, M AU - Taniguchi M FAU - Sakaguchi, N AU - Sakaguchi N LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Biochem Biophys Res Commun JT - Biochemical and biophysical research communications JID - 0372516 RN - 0 (DNA-Binding Proteins) RN - 0 (Ki-67 Antigen) RN - 0 (Nuclear Proteins) RN - 0 (PAX5 Transcription Factor) RN - 0 (Pax5 protein, mouse) RN - 0 (RNA, Messenger) RN - 0 (Transcription Factors) SB - IM MH - Animals MH - Blotting, Northern MH - Brain/embryology/metabolism MH - Cell Differentiation/genetics MH - Cells, Cultured MH - DNA-Binding Proteins/genetics MH - Embryo, Mammalian/*metabolism MH - Embryonic and Fetal Development/*genetics MH - *Gene Expression Regulation, Developmental MH - In Situ Hybridization MH - Ki-67 Antigen/*genetics MH - Liver/embryology/metabolism MH - Lymphoid Tissue/embryology/metabolism MH - Mice MH - Mice, Inbred BALB C MH - Nuclear Proteins/genetics MH - PAX5 Transcription Factor MH - RNA, Messenger/genetics/*metabolism MH - Stem Cells/metabolism MH - *Transcription Factors MH - Transcription, Genetic EDAT- 1997/06/09 00:00 MHDA- 1997/06/09 00:01 CRDT- 1997/06/09 00:00 PHST- 1997/06/09 00:00 [pubmed] PHST- 1997/06/09 00:01 [medline] PHST- 1997/06/09 00:00 [entrez] AID - S0006-291X(97)96759-0 [pii] AID - 10.1006/bbrc.1997.6759 [doi] PST - ppublish SO - Biochem Biophys Res Commun. 1997 Jun 9;235(1):191-6. doi: 10.1006/bbrc.1997.6759.