Odontoclasts in the Chinook salmon differ from mammalian odontoclasts by exhibiting a great proportion of cells with high nuclei number

Domon, Takanori; Fukui, Ami; Taniguchi, Yukinori; Suzuki, Reiko; Takahashi, Shigeru; Yamamoto, Tsuneyuki; Wakita, Minoru

doi:10.1007/s00429-004-0437-7

Cited by 7 publications

(9 citation statements)

References 27 publications

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“…The cells responsible for resorption at these regions were typically multinucleate giant cells, odontoclasts (osteoclasts). These odontoclasts were TRAP-positive ones and shared features similar to those of odontoclasts as described in teleosts and many vertebrate species (Yaeger and Kraucunasa 1969;Sire et al, 1990;Fuenzalida et al, 1999;Wistuba et al, 2000;Domon et al, 2004;Nemoto et al, 2007;Witten and Huysseune, 2009).…”

Section: Resorption Of Worn-out Functional Teeth In the Upper Jaw Densupporting

confidence: 72%

Fate of Worn‐Out Functional Teeth in the Upper Jaw Dentition of Sicyopterus japonicus (Gobioidei: Sicydiinae) During Tooth Replacement

Sahara

Moriyama

Iida

et al. 2017

The Anatomical Record

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Mochizuki and Fukui (Jpn J Ichthyol 30 () 27-36) studied the development and replacement of the upper jaw teeth in a Japanese fish species, Sicyopterus japonicus (Gobioidei: Sicydiinae), and they reported that worn-out functional teeth in the upper jaw were not shed outside the skin but were taken into the soft tissue of the upper jaw and completely resorbed there. To date, however, this phenomenon appears poorly documented. Furthermore, the mechanism for the resorption of these teeth remains to be determined. In this study, we examined this phenomenon by using 3D microcomputed tomography (m-CT), scanning electron microscopy (SEM), and various techniques of light (LM) and electron (EM) microcopy. This study demonstrated that the upper jaw dentition of this fish was more or less simultaneously replaced with the replacement occurring during short time periods and that the lingual movement of the replacement teeth to the functional tooth position advanced simultaneously in a given row. Furthermore, our study also revealed that many worn-out functional teeth were engulfed by the oral epithelium, invaginated into the lingual shallow ditch of the premaxilla, and were resorbed/degraded completely by numerous foreign body giant cells rather than by odontoclasts during periods of at least three intervals of tooth replacement. The complete resorption/degradation of worn-out functional teeth in the soft tissue of the upper jaw suggests the possibility of the reuse of their components (minerals such as Ca and P, including Fe) for rapid and successional production of new replacement teeth in the upper jaw of adult S. japonicus. Anat Rec, 2017. © 2017 Wiley Periodicals, Inc. Anat Rec, 301:111-124, 2018. © 2017 Wiley Periodicals, Inc.

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Section: Resorption Of Worn-out Functional Teeth In the Upper Jaw Densupporting

confidence: 72%

Fate of Worn‐Out Functional Teeth in the Upper Jaw Dentition of Sicyopterus japonicus (Gobioidei: Sicydiinae) During Tooth Replacement

Sahara

Moriyama

Iida

et al. 2017

The Anatomical Record

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“…In this study, a specific staining for osteoclast detection, such as tartrate-resistant acid phosphatase (TRAP) staining was not used, but several studies show that S. salar osteoclasts are typical multinucleated giant cells that create Howship's lacunae. Activated, multinucleated S. salar osteoclasts have been found to be even larger than human osteoclasts (Kacem et al, 1998;Witten & Hall, 2003;Domon et al, 2004). An increase of osteoclastic resorption would thus have been observed with standard histology.…”

Section: I N E R a L D E F I C I E N C Y W I T H O U T S C A L E O mentioning

confidence: 98%

A primary phosphorus‐deficient skeletal phenotype in juvenile Atlantic salmon Salmo salar: the uncoupling of bone formation and mineralization

Witten

Owen

Fontanillas

et al. 2015

Journal of Fish Biology

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To understand the effect of low dietary phosphorus (P) intake on the vertebral column of Atlantic salmon Salmo salar, a primary P deficiency was induced in post‐smolts. The dietary P provision was reduced by 50% for a period of 10 weeks under controlled conditions. The animal's skeleton was subsequently analysed by radiology, histological examination, histochemical detection of minerals in bones and scales and chemical mineral analysis. This is the first account of how a primary P deficiency affects the skeleton in S. salar at the cellular and at the micro‐anatomical level. Animals that received the P‐deficient diet displayed known signs of P deficiency including reduced growth and soft, pliable opercula. Bone and scale mineral content decreased by c. 50%. On radiographs, vertebral bodies appear small, undersized and with enlarged intervertebral spaces. Contrary to the X‐ray‐based diagnosis, the histological examination revealed that vertebral bodies had a regular size and regular internal bone structures; intervertebral spaces were not enlarged. Bone matrix formation was continuous and uninterrupted, albeit without traces of mineralization. Likewise, scale growth continues with regular annuli formation, but new scale matrix remains without minerals. The 10 week long experiment generated a homogeneous osteomalacia of vertebral bodies without apparent induction of skeletal malformations. The experiment shows that bone formation and bone mineralization are, to a large degree, independent processes in the fish examined. Therefore, a deficit in mineralization must not be the only cause of the alterations of the vertebral bone structure observed in farmed S. salar. It is discussed how the observed uncoupling of bone formation and mineralization helps to better diagnose, understand and prevent P deficiency‐related malformations in farmed S. salar.

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“…Many decades after the pioneering articles of Parker (1873), Day (1887), De Beer (1937, and Tchernavin (1937Tchernavin ( , 1938, salmonids are increasingly being used in fundamental studies of jaw development and remodeling (Witten and Hall 2001, 2003Gillis et al 2006) as well as in tooth development studies (Domon et al 2004(Domon et al , 2006Fraser et al 2004Fraser et al , 2006aWitten et al 2005;Huysseune and Witten 2006;Jenner and Wills 2007;Huysseune et al 2007). Salmonids are basal protacanthopterygian teleosts.…”

Section: Introductionmentioning

confidence: 99%

An evolutionary view on tooth development and replacement in wild Atlantic salmon (Salmo salar L.)

Huysseune

Witten

2008

Evolution and Development

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To gain an insight into the evolution of tooth replacement mechanisms, we studied the development of first-generation and replacement teeth on the dentary of wild Atlantic salmon (Salmo salar L.), a protacanthopterygian teleost, using serially sectioned heads of early posthatching stages as well as adults. First-generation teeth develop within the oral epithelium. The anlage of the replacement tooth is first seen as a placode-like thickening of the outer dental epithelium of the predecessor, at its lingual and caudal side. Ongoing development of the replacement tooth germ is characterized by the elaboration of a population of epithelial cells, termed here the middle dental epithelium, apposed to the inner dental epithelium on the lingual side of the tooth germ. Before the formation of the new successor, a single-layered outer dental epithelium segregates from the middle dental epithelium. The dental organs of the predecessor and the successor remain broadly interconnected. The absence of a discrete successional dental lamina in salmon stands in sharp contrast to what is observed in other teleosts, even those that share with salmon the extraosseous formation of replacement teeth. The mode of tooth replacement in Atlantic salmon displays several characters similar to those observed in the shark Squalus acanthias. To interpret similarities in tooth replacement between Atlantic salmon and chondrichthyans as a case of convergence, or to see them as a result of a heterochronic shift, requires knowledge on the replacement process in more basal actinopterygian lineages. The possibility that the middle dental epithelium functionally substitutes for a successional lamina, and could be a source of stem cells, whose descendants subsequently contribute to the placode of the new replacement tooth, needs to be explored.

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Odontoclasts in the Chinook salmon differ from mammalian odontoclasts by exhibiting a great proportion of cells with high nuclei number

Cited by 7 publications

References 27 publications

Fate of Worn‐Out Functional Teeth in the Upper Jaw Dentition of Sicyopterus japonicus (Gobioidei: Sicydiinae) During Tooth Replacement

Fate of Worn‐Out Functional Teeth in the Upper Jaw Dentition of Sicyopterus japonicus (Gobioidei: Sicydiinae) During Tooth Replacement

A primary phosphorus‐deficient skeletal phenotype in juvenile Atlantic salmon Salmo salar: the uncoupling of bone formation and mineralization

An evolutionary view on tooth development and replacement in wild Atlantic salmon (Salmo salar L.)

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