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Production and Characterization of Monoclonal Antibodies to Xenopus Proteins

Horr et al., Development. 2023.

https://pubmed.ncbi.nlm.nih.gov/36789951/

Monoclonal antibodies are powerful and versatile tools that enable the study of proteins in diverse contexts. They are often utilized to assist with identification of subcellular localization and characterization of the function of target proteins of interest. However, because there can be considerable sequence diversity between orthologous proteins in Xenopus and mammals, antibodies produced against mouse or human proteins often do not recognize Xenopus counterparts. To address this issue, the authors refined existing mouse monoclonal antibody production protocols to generate antibodies against Xenopus proteins of interest. Here, they describe several approaches for the generation of useful mouse anti-Xenopus antibodies to multiple Xenopus proteins and their validation in various experimental approaches. Supported by ORIP (R24OD021485, S10OD010645) and NIDCR.

Identification of Basp1 as a Novel Angiogenesis-regulating Gene by Multi-Model System Studies

Khajavi et al., FASEB Journal. 2021.

https://pubmed.ncbi.nlm.nih.gov/33899275/

The authors previously used genetic diversity in inbred mouse strains to identify quantitative trait loci (QTLs) responsible for differences in angiogenic response. Employing a mouse genome-wide association study (GWAS) approach, the region on chromosome 15 containing Basp1 was identified as being significantly associated with angiogenesis in inbred strains. To investigate its role in vivo, they knocked out basp1 in transgenic kdrl:zsGreen zebrafish embryos using a widely adopted CRISPR-Cas9 system. They further showed that basp1 promotes angiogenesis by upregulating β-catenin gene and the Dll4/Notch1 signaling pathway. These results provide the first in vivo evidence to indicate the role of basp1 as an angiogenesis-regulating gene. Supported by ORIP (R24OD017870) and NEI.