Related Experiment Videos
FORSE-1: a positionally regulated epitope in the developing rat central nervous system
1Division of Biology, California Institute of Technology, Pasadena 91125.
Summary
A new monoclonal antibody, FORSE-1, identifies cell surface molecules in the developing central nervous system (CNS). This antibody reveals spatial patterns crucial for regional specification from early embryonic stages.
Area of Science:
- Neuroscience
- Developmental Biology
- Molecular Biology
Background:
- Identifying cell surface molecules is key to understanding central nervous system (CNS) development.
- Regional transcription factors may regulate molecules with restricted spatial expression patterns.
Purpose of the Study:
- To develop a method for identifying cell surface molecules in the developing CNS.
- To characterize the expression patterns of a novel molecule identified by the FORSE-1 antibody.
Main Methods:
- Generated a monoclonal antibody (mAb), FORSE-1, using a membrane fraction from retinoic acid-induced NT2/D1 embryocarcinoma cells.
- Utilized immunofluorescence staining on embryonic and postnatal rat CNS tissue at various developmental stages.
- Analyzed the molecular nature of the FORSE-1 antigen through biochemical characterization.
Main Results:
- FORSE-1 specifically labels the rostral CNS from early embryonic stages, with distinct patterns in the neural folds, forebrain, telencephalon, and diencephalon.
- Labeling correlates with mitotic activity in the ventricular zone of the telencephalon.
- The antigen is a proteoglycan and an 80 kDa doublet, present on the surface of living cells.
Conclusions:
- The FORSE-1 antibody identifies a cell surface molecule with spatially restricted expression in the developing CNS.
- This molecule is a strong candidate for mediating regional specification during CNS development.
- FORSE-1 provides a valuable tool for studying early CNS patterning.