What question did this study set out to answer?

To establish the morphological criteria for identifying embryonic cell degeneration and determine its functional significance during normal vertebrate development.

February 1, 1951Biological reviews/Biological reviews of the Cambridge Philosophical Society

Cell Deaths in Normal Vertebrate Ontogeny

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Authors

AGA. GlücksmannEmory University

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Implication

Comparative study reveals widespread programmed cell death in developing vertebrate embryos, highlighting its critical role in organ morphogenesis and tissue differentiation.

Key Points

To establish the morphological criteria for identifying embryonic cell degeneration and determine its functional significance during normal vertebrate development.
Histological and cytological examination of embryonic tissues across diverse vertebrate species in vivo and in explanted tissue cultures.
Identification of degenerating cells using Feulgen nuclear staining and supravital dye reactions to track nuclear breakdown and resorption dynamics.
Systematic classification of cell deaths across developmental stages into morphogenetic, histiogenetic, and phylogenetic categories.
Demonstrated that cell death occurs universally throughout normal vertebrate ontogeny, with degeneration events typically resolving within 1 to 7 hours.
Observed that morphogenetic degenerations directly enable epithelial remodeling, lumen formation, and tissue separation, predominantly in closely packed cellular regions.
Identified waves of histiogenetic and phylogenetic cell death that drive cellular differentiation and mediate the regression of vestigial or temporary larval structures.

Cite This Study

A. Glücksmann (1951) studied this question.

synapsesocial.com/papers/69d781cbf44a16d01ef319b7 https://doi.org/10.1111/j.1469-185x.1951.tb00774.x

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Implication

Comparative study reveals widespread programmed cell death in developing vertebrate embryos, highlighting its critical role in organ morphogenesis and tissue differentiation.

Cell Deaths in Normal Vertebrate Ontogeny

Discussion

Member takes

Implication

Key Points

Cite This Study

Cell Deaths in Normal Vertebrate Ontogeny

Discussion

Member takes

Implication

Key Points

Cite This Study

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