Korean J Orthod.  2008 Apr;38(2):133-143. 10.4041/kjod.2008.38.2.133.

Characteristics of MSX1 gene in Korean nonsyndromic cleft lip and palate individuals

Affiliations
  • 1Department of Orthodontics, School of Dentistry, Pusan National University, Korea. softid@pusan.ac.kr

Abstract


OBJECTIVE
This study was performed to identify the characteristics of the MSX1 gene (locus chromosome 4p16) in Korean nonsyndromic cleft lip and palate (CL/P), which is assumed to be a major candidate gene acting as a causal factor in nonsyndromic CL/P and missing teeth.
METHODS
The 36 individuals (23 males and 13 females) who had visited the department of orthodontics at from 1998 to 2002 and who had nonsyndromic CL/P were included in the study. Using a PCR-based assay, the MSX1 gene was amplified, sequenced, and searched for inferred protein products (Reference: Homo sapiens MSX1, accession number AF426432 and NP_002439). The common single nucleotide polymorphisms were observed.
RESULTS
In exon 1, nucleotide "A" of the 253 basepair (bp) region was substituted for "G", and in the 255 bp region, nucleotide "G" was inserted. In exon 2, nucleotide "C" of the 11 bp region was substituted for "A", and "T" or "G" was inserted into the 351 bp region whereas "T" or "A" was inserted into the 352 bp region. In protein analysis, "Thr85Ala" missense mutation was found. The "Thr85Ala" missense mutation in this study is different from those of studies using subjects of other races.
CONCLUSIONS
The results suggest that there is specific mutation of MSX1 in Korean and it plays an important role in Korean nonsyndromic CL/P. However, any distinct genetic polymorphisms between CL/P with missing teeth in the cleft region and CL/P without missing teeth could not be found.

Keyword

MSX1 gene; Korean nonsyndromic cleft lip and palate; Missing teeth

MeSH Terms

Cleft Lip
Continental Population Groups
Exons
Humans
Male
Mutation, Missense
Orthodontics
Palate
Polymorphism, Genetic
Polymorphism, Single Nucleotide
Tooth

Figure

  • Fig 1 Two percent agarose gel electrophoresis of MSX1 gene PCR product. M, molecular weight marker; lane 1, 2, 3, 4, nonsyndromic cleft lip and palate subjects; bp, basepair.

  • Fig 2 Three different genetic features were exhibited, and were divided into patterns I, II and III. The sequences of pattern I were similar to the reference sequences, and most of the subjects belonged to pattern I. However, the sequences of pattern II and pattern III were very different from the reference sequences, and they also differed from each other.

  • Fig 3 Neighbour joining tree of MSX1 gene from ClustalW multiple sequence alignment program. Most of the subjects except 9 subjects belonged to pattern I. "#" means patient number in raw data.

  • Fig 4 The common single nucleotide polymorphisms (SNPs) of pattern I. In exon 1, nucleotide "A" of the 253 basepair region was substituted for "G", and in the 255 basepair region, nucleotide "G" was inserted.

  • Fig 5 The common SNPs of exon 2. In exon 2, nucleotide "C" of the 11 basepair region was substituted for "A".

  • Fig 6 The common SNPs in exon 2 of pattern I in 351,352 basepair region. "T" or "G" was inserted into the 351 basepair region whereas "T" or "A" was inserted into the 352 basepair region.

  • Fig 7 Protein sequence comparison in exon 1 of the MSX1 gene. In 85 region, Threonine was substituted for Alanine in all subjects. Sequence changes of amino acid by this protein mutation in the 85 region were continued into 279 region and then reverted to the normal structure from the 280 region.

  • Fig 8 A, The protein sequences of patient number 32 were considerably different from those of other subjects in pattern I; B, nucleotide sequences of patient number 32: nucleotide "T" was inserted into the 57 bp region; C, the "Lys20Gln" missense mutation was found.


Reference

1. Croen LA, Shaw GM, Wasserman CR, Tolarova MM. Racial and ethnic variations in the prevalence of orofacial clefts in California, 1983-1992. Am J Med Genet. 1998. 79:42–47.
Article
2. Vanderas AP. Incidence of cleft lip, cleft palate, and cleft lip and palate among races: a review. Cleft palate J. 1987. 24:216–225.
3. Lidral AC, Murray JC, Buetow KH, Basart AM, Schearer H, Shiang R, et al. Studies of the candidate genes TGFB2, MSX1, TGFA, and TGFB3 in the etiology of cleft lip and palate in the Philippines. Cleft Palate Craniofac J. 1997. 34:1–6.
Article
4. Schutte BC, Murray JC. The many faces and factors of orofacial clefts. Hum Mol Genet. 1999. 8:1853–1859.
5. Kim S, Kim WJ, Oh C, Kim JC. Cleft lip and palate incidence among the live births in the republic of Korea. J Korean Med Sci. 2002. 17:49–52.
Article
6. Hecht JT, Wang Y, Blanton SH, Daiger SP. Van der Woude syndrome and nonsyndromic cleft lip and palate. Am J Hum Genet. 1992. 51:442–444.
7. Schutte BC, Bjork BC, Coppage KB, Malik MI, Gregory SG, Scott DJ, et al. A preliminary gene map for the Van der Woude syndrome critical region derived from 900 kb of genomic sequence at 1q32-q41. Genome Res. 2000. 10:81–94.
8. Murray JC. Face facts: genes, environment, and clefts. Am J Hum Genet. 1995. 57:227–232.
9. Lander ES, Schork N. Genetic dissection of complex traits. Science. 1994. 265:2037–2048.
Article
10. Hecht JT, Yang P, Michels VV, Buetow KH. Complex segregation analysis of nonsyndromic cleft lip and palate. Am J Hum Genet. 1991. 49:674–681.
11. Wyszynski DF, Beaty TH, Maestri NE. Genetics of nonsyndromic oral clefts revisited. Cleft Palate Craniofac J. 1996. 33:406–417.
Article
12. Jones MC. Etiology of prospective evaluation of 428 patients. Cleft Palate J. 1988. 25:16–20.
13. Murray JC. Gene/environment causes of cleft lip and palate. Clin Genet. 2002. 61:248–256.
14. Kim SS, Son WS. Sequencing analysis of the OFC1 gene on the nonsyndromic cleft lip and palate patient in Korean. Korean J Orthod. 2003. 33:185–197.
15. Murray JC, Schutte BC. Cleft palate: players, pathways, and pursuits. J Clin Invest. 2004. 113:1676–1678.
Article
16. Lidral AC, Romitti PA, Basart AM, Doetschman T, Leysens NJ, Daack-Hirsch S, et al. Association of MSX1 and TGFB3 with nonsymdromic clefting in human. Am J Hum Genet. 1998. 63:557–568.
17. Jugessur A, Lie RT, Wilcox AJ, Murray JC, Taylor JA, Saugstad OD, et al. Variants of developmental genes (TGFA, TGFB3, and MSX1) and their associations with craniofacial clefts: a case-parent triad analysis. Genet Epidemiol. 2003. 24:230–239.
Article
18. Satokata I, Maas R. MSX1 deficient mice exhibit cleft palate and abnormalities of craniofacial and tooth development. Nat Genet. 1994. 6:348–356.
Article
19. Blanco R, Chakraborty R, Barton SA, Carreno H, Paredes M, Jara L, et al. Evidence of a sex-dependent association between the MSX1 locus and nonsyndromic cleft lip with or without cleft palate in the Chilean population. Hum Biol. 2001. 73:81–89.
Article
20. Jezewski PA, Vieira AR, Nishimura C, Ludwig B, Johnson M, O'Brien SE, et al. Complete sequencing shows a role for MSX1 in non-syndromic cleft lip and palate. J Med Genet. 2003. 40:399–407.
Article
21. van den Boogaard MJ, Dorland M, Beemer FA, van Amstel HK. MSX1 mutation is associated with orofacial clefting and tooth agenesis in humans. Nat Genet. 2000. 24:342–343.
Article
22. Slayton RL, Williams L, Murray JC, Wheeler JJ, Lidral AC, Nishimura CJ. Genetic association studies of cleft lip and/or palate with hypodontia outside the cleft region. Cleft Palate Craniofac J. 2003. 40:274–279.
Article
23. Vastardis H, Karimbux N, Guthua SW, Seidman JG, Seidman CE. A human MSX1 homeodomain missense mutation causes selective tooth agenesis. Nat Genet. 1996. 13:417–421.
Article
24. Lidral AC, Reising BC. The role of MSX1 in human tooth agenesis. J Dent Res. 2002. 81:274–278.
Article
25. De Muynck S, Schollen E, Matthijs G, Verdonck A, Devriendt K, Carels C. A novel MSX1 mutation in hypodontia. Am J Med Genet A. 2004. 128:401–403.
26. Mattheeuws N, Dermaut L, Martens G. Has hypodontia increased in Caucasians during the 20th century? A meta-analysis. Eur J Orthod. 2004. 26:99–103.
Article
27. Graber LW. Congenital absence of teeth: a review with emphasis on inheritance patterns. J Am Dent Assoc. 1978. 96:266–275.
Article
28. Tsai TP, Huang CS, Huang CC, See LC. Distribution patterns of primary and permanent dentition in children with unilateral complete cleft lip and palate. Cleft palate Craniofac J. 1998. 35:154–160.
Article
29. Shapira Y, Lubit E, Kuftinec MM. Congentially missing second premolars in cleft lip and cleft palate children. Am J Orthod Dentofacial Orthop. 1999. 115:396–400.
Article
30. Shapira Y, Lubit E, Kuftinec MM. Hypodontia in children with various types of clefts. Angle Orthod. 2000. 70:16–21.
31. Lourenco Ribeiro L, Teixeira Das Neves L, Costa B, Ribeiro Gomide M. Dental anomalies of the permanent lateral incisors and prevalence of hypodontia outside the cleft area in complete unilateral cleft lip and palate. Cleft palate Craniofac J. 2003. 40:172–175.
Article
32. Olin WH. Dental anomalies in cleft lip and cleft palate patients. Angle Orthod. 1964. 34:119–123.
33. Eerens K, Vlietinck R, Heidbuchel K, Van Olmen A, Derom C, Willems G, Carels C. Hypodontia and tooth formation in groups of children with cleft, siblings without cleft, and nonrelated controls. Cleft palate Craniofac J. 2001. 38:374–378.
Article
34. Jumlongras D, Bei M, Stimson JM, Wang WF, DePalma SR, Seidman CE, et al. A nonsense mutation in MSX1 causes Witkop syndrome. Am J Hum Genet. 2001. 69:67–74.
Article
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