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10 Most Recent Papers
Note - This sub-heading shows an automated computer PubMed search using the listed sub-heading term. References appear in this list based upon the date of the actual page viewing. Therefore the list of references do not reflect any editorial selection of material based on content or relevance. In comparison, references listed on the content page and discussion page (under the publication year sub-headings) do include editorial selection based upon relevance and availability. (More? Pubmed Most Recent)
F M Gür, S Timurkaan, B Gençer Tarakçi, M H Yalçin, Z E Özkan, S B Baygeldi, S Yilmaz, H Eröksüz Identification of immunohistochemical localization of irisin in the dwarf hamster (Phodopus roborovskii) tissues. Anat Histol Embryol: 2018, 47(2);174-179 PubMed 29527793
T Ertugrul, S Tutuncu, M Kabak, B Onuk The distribution and heterogeneity of mast cells in tongue from five different avian species. Anat Histol Embryol: 2018; PubMed 29492994
Kinga Skieresz-Szewczyk, Hanna Jackowiak, Marlena Ratajczak Ultrastructural study on the embryonic development of the orthokeratinized epithelium and its cornified layer (lingual nail) on the ventral surface of the lingual apex in the domestic duck (Anas platyrhynchos f. domestica). Zoology (Jena): 2017; PubMed 29373166
Atsuko Yamashita, Kaori Kondo, Yoshimi Kunishima, Sachiko Iseki, Takashi Kondo, Masato S Ota Perinatal development of bitter taste avoidance behavior in mice is associated with ACTIN-dependent localization of bitter taste receptors to the microvilli of taste cells. Biochem. Biophys. Res. Commun.: 2017; PubMed 29278699
Mohamed M A Abumandour Surface ultrastructural (SEM) characteristics of oropharyngeal cavity of house sparrow (Passer domesticus). Anat Sci Int: 2017; PubMed 29270912
Aline Mara de Oliveira Vassoler, Larissa Cristina Berti Syllabic patterns in typical and atypical phonological development: ultrasonographic analysis. [Padrões silábicos no desenvolvimento fonológico típico e atípico: análise ultrassonográfica.] Codas: 2018, 30(2);e20170067 PubMed 29668770
P J Thomson, M L Goodson, D R Smith Potentially Malignant Disorders Revisited - The Lichenoid Lesion/ Proliferative Verrucous Leukoplakia Conundrum. J. Oral Pathol. Med.: 2018; PubMed 29663518
Janine M Ziermann, Rui Diogo, Drew M Noden Neural crest and the patterning of vertebrate craniofacial muscles. Genesis: 2018;e23097 PubMed 29659153
Camila Pinheiro Furquim, Allana Pivovar, José Miguel Amenábar, Carmem Bonfim, Cassius Carvalho Torres-Pereira Oral cancer in Fanconi anemia: Review of 121 cases. Crit. Rev. Oncol. Hematol.: 2018, 125;35-40 PubMed 29650274
Natalia Zharkova An Ultrasound Study of the Development of Lingual Coarticulation during Childhood. Phonetica: 2018; PubMed 29649801
Fetal tendinous connection between the tensor tympani and tensor veli palatini muscles: A single digastric muscle acting for morphogenesis of the cranial base
Anat Rec (Hoboken). 2016 Jan 6. doi: 10.1002/ar.23310. [Epub ahead of print]
Rodríguez-Vázquez JF1, Sakiyama K2, Abe H3, Amano O2, Murakami G4.
Some researchers contend that in adults the tensor tympani muscle (TT) connects with the tensor veli palatini muscle (TVP) by an intermediate tendon, in disagreement with the other researchers. To resolve this controversy, we examined serial sections of 50 human embryos and fetuses at 6-17 weeks of development. At 6 weeks, in the first pharyngeal arch, a mesenchymal connection was found first to divide a single anlage into the TT and TVP. At and after 7 weeks, the TT was connected continuously with the TVP by a definite tendinous tissue mediolaterally crossing the pharyngotympanic tube. At 11 weeks another fascia was visible covering the cranial and lateral sides of the tube. This "gonial fascia" had two thickened borders: the superior one corresponded to a part of the connecting tendon between the TT and TVP; the inferior one was a fibrous band ending at the os goniale near the lateral end of the TVP. In association with the gonial fascia, the fetal TT and TVP seemed to provide a functional complex. The TT-TVP complex might first help elevate the palatal shelves in association with the developing tongue. Next, the tubal passage, maintained by contraction of the muscle complex, seems to facilitate the removal of loose mesenchymal tissues from the tympanic cavity. Third, the muscle complex most likely determined the final morphology of the pterygoid process. Consequently, despite the controversial morphologies in adults, the TT and TVP seemed to make a single digastric muscle acting for the morphogenesis of the cranial base. This article is protected by copyright. All rights reserved. © 2016 Wiley Periodicals, Inc. KEYWORDS: middle ear; palatal shelves; pharyngotympanic tube; tensor tympani muscle; tensor veli palatini muscle
Proc Natl Acad Sci U S A. 2013 Nov 12;110(46):18555-60. doi: 10.1073/pnas.1306495110. Epub 2013 Oct 28.
Liu H, Lan Y, Xu J, Chang CF, Brugmann SA, Jiang R. Author information
Abstract The tongue is a critical element of the feeding system in tetrapod animals for their successful adaptation to terrestrial life. Whereas the oral part of the mammalian tongue contains soft tissues only, the avian tongue has an internal skeleton extending to the anterior tip. The mechanisms underlying the evolutionary divergence in tongue skeleton formation are completely unknown. We show here that the odd-skipped related-1 (Osr1) transcription factor is expressed throughout the neural crest-derived tongue mesenchyme in mouse, but not in chick, embryos during early tongue morphogenesis. Neural crest-specific inactivation of Osr1 resulted in formation of an ectopic cartilage in the mouse tongue, reminiscent in shape and developmental ontogeny of the anterior tongue cartilage in chick. SRY-box containing gene-9 (Sox9), the master regulator of chondrogenesis, is widely expressed in the nascent tongue mesenchyme at the onset of tongue morphogenesis but its expression is dramatically down-regulated concomitant with activation of Osr1 expression in the developing mouse tongue. In Osr1 mutant mouse embryos, expression of Sox9 persisted in the developing tongue mesenchyme where chondrogenesis is subsequently activated to form the ectopic cartilage. Furthermore, we show that Osr1 binds to the Sox9 gene promoter and that overexpression of Osr1 suppressed expression of endogenous Sox9 mRNAs and Sox9 promoter-driven reporter. These data indicate that Osr1 normally prevents chondrogenesis in the mammalian tongue through repression of Sox9 expression and suggest that changes in regulation of Osr1 expression in the neural crest-derived tongue mesenchyme underlie the evolutionary divergence of birds from other vertebrates in tongue morphogenesis. KEYWORDS: cell fate, craniofacial, differentiation, tongue-tie
Morphological variations of the vallate papillae in some mammalian species
Anat Sci Int. 2013 Nov 16. [Epub ahead of print]
El Sharaby AA, El-Gendy SA, Alsafy MA, Nomir AG, Wakisaka S. Author information
Abstract The morpho-structural characteristics of the vallate papillae of the tongue of rat, dog, donkey and buffalo were investigated by macroscopy and their microstructure by light and scanning electron microscopy (SEM). The numbers of vallate papillae varied among the different species. In rat, a single vallate papilla surrounded by incomplete groove and an annular fold was observed. Taste buds were detected along the entire length of the medial and lateral groove epithelium, but not in the papillary dome. In dog, some papillae lacking the annular pad had irregular ridges and grooves toward the center of the papillary surface, while other papillae had small secondary papillary grooves arising from the center of the papilla. Taste buds were located in the medial and lateral epithelium of both primary and secondary grooves as well as in the dome epithelium. In donkey, two papillae were frequently observed around the midline of the tongue root, and an additional papilla was found occasionally in the middle and associated with secondary papilla. In buffalo, several papillae were relatively small and variable in shape. With SEM, small ridges and grooves were found in the papillae of donkey and buffalo. In both species, taste buds were constantly observed along the medial wall epithelium, but no taste buds were found in the lateral wall. We conclude that the vallate papillae exhibited peculiar characteristics, which are species specific and might have a correlation with the variable feeding habits among these animals.
Noncanonical transforming growth factor β (TGFβ) signaling in cranial neural crest cells causes tongue muscle developmental defects
J Biol Chem. 2013 Oct 11;288(41):29760-70. doi: 10.1074/jbc.M113.493551. Epub 2013 Aug 15.
Iwata J, Suzuki A, Pelikan RC, Ho TV, Chai Y. Author information
Microglossia is a congenital birth defect in humans and adversely impacts quality of life. In vertebrates, tongue muscle derives from the cranial mesoderm, whereas tendons and connective tissues in the craniofacial region originate from cranial neural crest (CNC) cells. Loss of transforming growth factor β (TGFβ) type II receptor in CNC cells in mice (Tgfbr2(fl/fl);Wnt1-Cre) causes microglossia due to a failure of cell-cell communication between cranial mesoderm and CNC cells during tongue development. However, it is still unclear how TGFβ signaling in CNC cells regulates the fate of mesoderm-derived myoblasts during tongue development. Here we show that activation of the cytoplasmic and nuclear tyrosine kinase 1 (ABL1) cascade in Tgfbr2(fl/fl);Wnt1-Cre mice results in a failure of CNC-derived cell differentiation followed by a disruption of TGFβ-mediated induction of growth factors and reduction of myogenic cell proliferation and differentiation activities. Among the affected growth factors, the addition of fibroblast growth factor 4 (FGF4) and neutralizing antibody for follistatin (FST; an antagonist of bone morphogenetic protein (BMP)) could most efficiently restore cell proliferation, differentiation, and organization of muscle cells in the tongue of Tgfbr2(fl/fl);Wnt1-Cre mice. Thus, our data indicate that CNC-derived fibroblasts regulate the fate of mesoderm-derived myoblasts through TGFβ-mediated regulation of FGF and BMP signaling during tongue development. KEYWORDS: Craniofacial Development, Development, Mouse, Muscle, Tone, Transforming Growth Factor beta (TGFbeta)
Mice with Tak1 deficiency in neural crest lineage exhibit cleft palate associated with abnormal tongue development
J Biol Chem. 2013 Apr 12;288(15):10440-50. doi: 10.1074/jbc.M112.432286. Epub 2013 Mar 4.
Song Z, Liu C, Iwata J, Gu S, Suzuki A, Sun C, He W, Shu R, Li L, Chai Y, Chen Y. Author information
Cleft palate represents one of the most common congenital birth defects in humans. TGFβ signaling, which is mediated by Smad-dependent and Smad-independent pathways, plays a crucial role in regulating craniofacial development and patterning, particularly in palate development. However, it remains largely unknown whether the Smad-independent pathway contributes to TGFβ signaling function during palatogenesis. In this study, we investigated the function of TGFβ activated kinase 1 (Tak1), a key regulator of Smad-independent TGFβ signaling in palate development. We show that Tak1 protein is expressed in both the epithelium and mesenchyme of the developing palatal shelves. Whereas deletion of Tak1 in the palatal epithelium or mesenchyme did not give rise to a cleft palate defect, inactivation of Tak1 in the neural crest lineage using the Wnt1-Cre transgenic allele resulted in failed palate elevation and subsequently the cleft palate formation. The failure in palate elevation in Wnt1-Cre;Tak1(F/F) mice results from a malformed tongue and micrognathia, resembling human Pierre Robin sequence cleft of the secondary palate. We found that the abnormal tongue development is associated with Fgf10 overexpression in the neural crest-derived tongue tissue. The failed palate elevation and cleft palate were recapitulated in an Fgf10-overexpressing mouse model. The repressive effect of the Tak1-mediated noncanonical TGFβ signaling on Fgf10 expression was further confirmed by inhibition of p38, a downstream kinase of Tak1, in the primary cell culture of developing tongue. Tak1 thus functions to regulate tongue development by controlling Fgf10 expression and could represent a candidate gene for mutation in human PRS clefting. PMID 23460641
Morphological variations of the vallate papillae in some mammalian species
Anat Sci Int. 2013 Nov 16. [Epub ahead of print]
El Sharaby AA, El-Gendy SA, Alsafy MA, Nomir AG, Wakisaka S. Source Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt, firstname.lastname@example.org.
The morpho-structural characteristics of the vallate papillae of the tongue of rat, dog, donkey and buffalo were investigated by macroscopy and their microstructure by light and scanning electron microscopy (SEM). The numbers of vallate papillae varied among the different species. In rat, a single vallate papilla surrounded by incomplete groove and an annular fold was observed. Taste buds were detected along the entire length of the medial and lateral groove epithelium, but not in the papillary dome. In dog, some papillae lacking the annular pad had irregular ridges and grooves toward the center of the papillary surface, while other papillae had small secondary papillary grooves arising from the center of the papilla. Taste buds were located in the medial and lateral epithelium of both primary and secondary grooves as well as in the dome epithelium. In donkey, two papillae were frequently observed around the midline of the tongue root, and an additional papilla was found occasionally in the middle and associated with secondary papilla. In buffalo, several papillae were relatively small and variable in shape. With SEM, small ridges and grooves were found in the papillae of donkey and buffalo. In both species, taste buds were constantly observed along the medial wall epithelium, but no taste buds were found in the lateral wall. We conclude that the vallate papillae exhibited peculiar characteristics, which are species specific and might have a correlation with the variable feeding habits among these animals. PMID 24242871
Bone morphogenetic protein-2 functions as a negative regulator in the differentiation of myoblasts, but not as an inducer for the formations of cartilage and bone in mouse embryonic tongue
BMC Dev Biol. 2011 Jul 7;11(1):44. [Epub ahead of print]
Aoyama K, Yamane A, Suga T, Suzuki E, Fukui T, Nakamura Y.
Abstract ABSTRACT: BACKGROUND: In vitro studies using the myogenic cell line C2C12 demonstrate that bone morphogenetic protein-2 (BMP-2) converts the developmental pathway of C2C12 from a myogenic cell lineage to an osteoblastic cell lineage. Further, in vivo studies using null mutation mice demonstrate that BMPs inhibit the specification of the developmental fate of myogenic progenitor cells. However, the roles of BMPs in the phases of differentiation and maturation in skeletal muscles have yet to be determined. The present study attempts to define the function of BMP-2 in the final stage of differentiation of mouse tongue myoblast. RESULTS: Recombinant BMP-2 inhibited the expressions of markers for the differentiation of skeletal muscle cells, such as myogenin, muscle creatine kinase (MCK), and fast myosin heavy chain (fMyHC), whereas BMP-2 siRNA stimulated such markers. Neither the recombinant BMP-2 nor BMP-2 siRNA altered the expressions of markers for the formation of cartilage and bone, such as osteocalcin, alkaline phosphatase (ALP), collagen II, and collagen X. Further, no formation of cartilage and bone was observed in the recombinant BMP-2-treated tongues based on Alizarin red and Alcian blue stainings. Neither recombinant BMP-2 nor BMP-2 siRNA affected the expression of inhibitor of DNA binding /differentiation 1 (Id1). The ratios of chondrogenic and osteogenic markers relative to glyceraldehyde-3-phosphate dehydrogenase (GAPDH, a house keeping gene) were approximately 1000-fold lower than those of myogenic markers in the cultured tongue. CONCLUSIONS: BMP-2 functions as a negative regulator for the final differentiation of tongue myoblasts, but not as an inducer for the formation of cartilage and bone in cultured tongue, probably because the genes related to myogenesis are in an activation mode, while the genes related to chondrogenesis and osteogenesis are in a silencing mode.
Relationship between neural crest cells and cranial mesoderm during head muscle development
Grenier J, Teillet MA, Grifone R, Kelly RG, Duprez D. PLoS One. 2009;4(2):e4381. Epub 2009 Feb 9. PMID: 19198652
In vertebrates, the skeletal elements of the jaw, together with the connective tissues and tendons, originate from neural crest cells, while the associated muscles derive mainly from cranial mesoderm. Previous studies have shown that neural crest cells migrate in close association with cranial mesoderm and then circumscribe but do not penetrate the core of muscle precursor cells of the branchial arches at early stages of development, thus defining a sharp boundary between neural crest cells and mesodermal muscle progenitor cells. Tendons constitute one of the neural crest derivatives likely to interact with muscle formation. However, head tendon formation has not been studied, nor have tendon and muscle interactions in the head.
This results show that neural crest cells and muscle progenitor cells are more extensively mixed than previously believed during arch development. In addition, our results show that interactions between muscles and tendons during craniofacial development are similar to those observed in the limb, despite the distinct embryological origin of these cell types in the head.
Development of the fetal tongue between 14 and 26 weeks of gestation: in utero ultrasonographic measurements
Ultrasound Obstet Gynecol. 1997 Jan;9(1):39-41.
Achiron R1, Ben Arie A, Gabbay U, Mashiach S, Rotstein Z, Lipitz S.
Our objective was to establish nomograms for fetal tongue measurements from 14 weeks until mid-gestation by using transvaginal and transabdominal high-resolution ultrasound techniques. A prospective, cross-sectional study was performed on 120 normal singleton pregnancies between 14 and 26 weeks of gestation. Tongue circumference was measured by transvaginal ultrasonography between 14 and 17 weeks, and by abdominal ultrasound between 18 and 26 weeks of gestation. Fetal tongue circumference, as a function of gestational age, was expressed by the regression equation: tongue circumference (mm) = -23.9 + 3.75 x gestational age (weeks). The correlation, r2 = 0.95, was found to be highly statistically significant (p < 0.0001). The normal mean of tongue circumference per week and the 95% prediction limits were defined. During the study period we evaluated two cases with tongue circumference outside these 95% confidence limits: one had microglossia, the other macroglossia, and both were found to be associated with abnormal fetal karyotype. The presented normative data may be helpful in the prenatal diagnosis of suspected congenital syndromes that include, among their manifestations, tongue growth disturbances.
| Fertilisation Age
| Gestational Age
| Mean Circumference|
|Tongue circumference was measured by transvaginal ultrasonography between 14 and 17 weeks, and by abdominal ultrasound between 18 and 26 weeks of gestation.|
- R Achiron, A Ben Arie, U Gabbay, S Mashiach, Z Rotstein, S Lipitz Development of the fetal tongue between 14 and 26 weeks of gestation: in utero ultrasonographic measurements. Ultrasound Obstet Gynecol: 1997, 9(1);39-41 PubMed 9060129