In vitro embryonic analogue models, such as gastruloids, trunk-like structures and embryoids, have been developed to understand principles of early development and morphogenesis. However, models that can fully mimic head formation are still missing. Here, we present a protocol for generating the head-like structure (HLS) in zebrafish embryonic explants. We describe steps for dissection and constructing cell and patterning landscapes. We then detail assessment of this structure through axis induction. For complete details on the use and execution of this protocol, please refer to Cheng et al. (2023)..
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http://dx.doi.org/10.1016/j.xpro.2023.102553 | DOI Listing |
STAR Protoc
December 2023
Women's Hospital, and Institute of Genetics, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China. Electronic address:
In vitro embryonic analogue models, such as gastruloids, trunk-like structures and embryoids, have been developed to understand principles of early development and morphogenesis. However, models that can fully mimic head formation are still missing. Here, we present a protocol for generating the head-like structure (HLS) in zebrafish embryonic explants.
View Article and Find Full Text PDFHum Mol Genet
August 2023
Developmental Biology and Cancer Department, Great Ormond Street Institute of Child Health, University College London, London WC1N 1EH, UK.
Orofacial clefts, including cleft lip and palate (CL/P) and neural tube defects (NTDs) are among the most common congenital anomalies, but knowledge of the genetic basis of these conditions remains incomplete. The extent to which genetic risk factors are shared between CL/P, NTDs and related anomalies is also unclear. While identification of causative genes has largely focused on coding and loss of function mutations, it is hypothesized that regulatory mutations account for a portion of the unidentified heritability.
View Article and Find Full Text PDFJ Eur Acad Dermatol Venereol
November 2023
Dermatology Unit, Surgical, Medical and Dental Department of Morphological Sciences Related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy.
Introduction: Dermoscopic predictors of lentigo maligna (LM) and lentigo maligna melanoma (LMM) have been recently reported, but these have not been reported in reflectance confocal microscopy (RCM).
Objectives: (i) To validate dermoscopic predictors for LM/LMM, (ii) to identify RCM patterns in LM and LMM, and (iii) correlations between dermoscopic and RCM features in LM and LMM.
Materials And Methods: A retrospective, multicentre study of consecutive lesions with histologically proven LM or LMM subtypes of the head and face, with complete sets of dermoscopic and RCM images.
Cell Rep
April 2023
Women's Hospital, Institute of Genetics, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China. Electronic address:
Much progress has been made toward generating analogs of early embryos, such as gastruloids and embryoids, in vitro. However, methods for how to fully mimic the cell movements of gastrulation and coordinate germ-layer patterning to induce head formation are still lacking. Here, we show that a regional Nodal gradient applied to zebrafish animal pole explant can generate a structure that recapitulates the key cell movements of gastrulation.
View Article and Find Full Text PDFActas Dermosifiliogr
September 2023
Fundación Hospital Alcorcón, Hospital Universitario Fundación Alcorcón, Alcorcón, Madrid, España.
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