Human NELL-1 expressed in unilateral coronal synostosis

Kang Ting, Heleni Vastardis, John B. Mulliken, Chia Soo, Andy Tieu, Huy Do, Emily Kwong, Charles Bertolami, Henry Kawamoto, Shun'ichi Kuroda, Michael T. Longaker

Research output: Contribution to journalArticle

Abstract

Surgical correction of unilateral coronal synostosis offers a unique opportunity to examine the molecular differences between an abnormal and a normal cranial suture. We isolated and identified a cDNA fragment whose expression was up-regulated in the premature fusing and fused coronal sutures, as compared with normal coronal sutures. The nucleotide sequence of the full-length cDNA of this gene, human NELL-1, has ~61% hornology with the chicken Nel gene. Both chicken Nel and human NELL-1 are comprised of six epidermal growth factor-like repeats. The human NELL-1 messages were localized primarily in the mesenchymal cells and osteoblasts at the osteogenic front, along the parasutural bone margins, and within the condensing mesenchymal cells of newly formed bone in sites of premature sutural fusion. Human multiorgan tissue mRNA blot showed that NELL-1 was specifically expressed in fetal brain but not in fetal kidney, liver, or lung. We also showed that Nell-1 was expressed in rat calvarial osteoprogenitor cells and was largely absent in rat tibiae and fibroblast cell cultures. In conclusion, our data suggest that the NELL-1 gene is preferentially expressed in cranial intramembranous bone and neural tissue (both of neural crest cell origin) and is up-regulated during unilateral premature closure of the coronal suture. The precise role of this gene is unknown.

Original languageEnglish (US)
Pages (from-to)80-89
Number of pages10
JournalJournal of Bone and Mineral Research
Volume14
Issue number1
DOIs
StatePublished - 1999

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Craniosynostoses
Sutures
Bone and Bones
Genes
Chickens
Complementary DNA
Cranial Sutures
Neural Crest
Osteoblasts
Tibia
Epidermal Growth Factor
Cell Culture Techniques
Fibroblasts
Kidney
Lung
Messenger RNA
Liver
Brain

ASJC Scopus subject areas

  • Surgery

Cite this

Ting, K., Vastardis, H., Mulliken, J. B., Soo, C., Tieu, A., Do, H., ... Longaker, M. T. (1999). Human NELL-1 expressed in unilateral coronal synostosis. Journal of Bone and Mineral Research, 14(1), 80-89. https://doi.org/10.1359/jbmr.1999.14.1.80

Human NELL-1 expressed in unilateral coronal synostosis. / Ting, Kang; Vastardis, Heleni; Mulliken, John B.; Soo, Chia; Tieu, Andy; Do, Huy; Kwong, Emily; Bertolami, Charles; Kawamoto, Henry; Kuroda, Shun'ichi; Longaker, Michael T.

In: Journal of Bone and Mineral Research, Vol. 14, No. 1, 1999, p. 80-89.

Research output: Contribution to journalArticle

Ting, K, Vastardis, H, Mulliken, JB, Soo, C, Tieu, A, Do, H, Kwong, E, Bertolami, C, Kawamoto, H, Kuroda, S & Longaker, MT 1999, 'Human NELL-1 expressed in unilateral coronal synostosis', Journal of Bone and Mineral Research, vol. 14, no. 1, pp. 80-89. https://doi.org/10.1359/jbmr.1999.14.1.80
Ting, Kang ; Vastardis, Heleni ; Mulliken, John B. ; Soo, Chia ; Tieu, Andy ; Do, Huy ; Kwong, Emily ; Bertolami, Charles ; Kawamoto, Henry ; Kuroda, Shun'ichi ; Longaker, Michael T. / Human NELL-1 expressed in unilateral coronal synostosis. In: Journal of Bone and Mineral Research. 1999 ; Vol. 14, No. 1. pp. 80-89.
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