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ResearchIn-Press PreviewAngiogenesisVascular biology Open Access | 10.1172/jci.insight.160372

Release of STK24/25 suppression on MEKK3 signaling in endothelial cells confers Cerebral cavernous malformation

Xi Yang,1 Shi-Ting Wu,1 Rui Gao,1 Rui Wang,1 Yixuan Wang,1 Zhenkun Dong,2 Lu Wang,1 Chunxiao Qi,1 Xiaohong Wang,3 M. Lienhard Schmitz,4 Renjing Liu,5 Zhiming Han,6 Lu Wang,2 and Xiangjian Zheng7

1Department of Pharmacology, Tianjin Medical University, Tianjin, China

2Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China

3Laboratory of Molecular ophthalmology, Tianjin Medical University, Tianjin, China

4Institute of Biochemistry, Justus Liebig University, Giessen, Germany

5Vascular Epigenetic Laboratory, Victor Chang Cardiac Research Institute, Sydney, Australia

6State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China

7Department of Pharmacology, Tianjin Medical Tianjin Medical University, Tianjin, China

Find articles by Yang, X. in: JCI | PubMed | Google Scholar |

1Department of Pharmacology, Tianjin Medical University, Tianjin, China

2Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China

3Laboratory of Molecular ophthalmology, Tianjin Medical University, Tianjin, China

4Institute of Biochemistry, Justus Liebig University, Giessen, Germany

5Vascular Epigenetic Laboratory, Victor Chang Cardiac Research Institute, Sydney, Australia

6State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China

7Department of Pharmacology, Tianjin Medical Tianjin Medical University, Tianjin, China

Find articles by Wu, S. in: JCI | PubMed | Google Scholar

1Department of Pharmacology, Tianjin Medical University, Tianjin, China

2Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China

3Laboratory of Molecular ophthalmology, Tianjin Medical University, Tianjin, China

4Institute of Biochemistry, Justus Liebig University, Giessen, Germany

5Vascular Epigenetic Laboratory, Victor Chang Cardiac Research Institute, Sydney, Australia

6State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China

7Department of Pharmacology, Tianjin Medical Tianjin Medical University, Tianjin, China

Find articles by Gao, R. in: JCI | PubMed | Google Scholar

1Department of Pharmacology, Tianjin Medical University, Tianjin, China

2Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China

3Laboratory of Molecular ophthalmology, Tianjin Medical University, Tianjin, China

4Institute of Biochemistry, Justus Liebig University, Giessen, Germany

5Vascular Epigenetic Laboratory, Victor Chang Cardiac Research Institute, Sydney, Australia

6State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China

7Department of Pharmacology, Tianjin Medical Tianjin Medical University, Tianjin, China

Find articles by Wang, R. in: JCI | PubMed | Google Scholar |

1Department of Pharmacology, Tianjin Medical University, Tianjin, China

2Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China

3Laboratory of Molecular ophthalmology, Tianjin Medical University, Tianjin, China

4Institute of Biochemistry, Justus Liebig University, Giessen, Germany

5Vascular Epigenetic Laboratory, Victor Chang Cardiac Research Institute, Sydney, Australia

6State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China

7Department of Pharmacology, Tianjin Medical Tianjin Medical University, Tianjin, China

Find articles by Wang, Y. in: JCI | PubMed | Google Scholar

1Department of Pharmacology, Tianjin Medical University, Tianjin, China

2Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China

3Laboratory of Molecular ophthalmology, Tianjin Medical University, Tianjin, China

4Institute of Biochemistry, Justus Liebig University, Giessen, Germany

5Vascular Epigenetic Laboratory, Victor Chang Cardiac Research Institute, Sydney, Australia

6State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China

7Department of Pharmacology, Tianjin Medical Tianjin Medical University, Tianjin, China

Find articles by Dong, Z. in: JCI | PubMed | Google Scholar

1Department of Pharmacology, Tianjin Medical University, Tianjin, China

2Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China

3Laboratory of Molecular ophthalmology, Tianjin Medical University, Tianjin, China

4Institute of Biochemistry, Justus Liebig University, Giessen, Germany

5Vascular Epigenetic Laboratory, Victor Chang Cardiac Research Institute, Sydney, Australia

6State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China

7Department of Pharmacology, Tianjin Medical Tianjin Medical University, Tianjin, China

Find articles by Wang, L. in: JCI | PubMed | Google Scholar

1Department of Pharmacology, Tianjin Medical University, Tianjin, China

2Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China

3Laboratory of Molecular ophthalmology, Tianjin Medical University, Tianjin, China

4Institute of Biochemistry, Justus Liebig University, Giessen, Germany

5Vascular Epigenetic Laboratory, Victor Chang Cardiac Research Institute, Sydney, Australia

6State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China

7Department of Pharmacology, Tianjin Medical Tianjin Medical University, Tianjin, China

Find articles by Qi, C. in: JCI | PubMed | Google Scholar

1Department of Pharmacology, Tianjin Medical University, Tianjin, China

2Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China

3Laboratory of Molecular ophthalmology, Tianjin Medical University, Tianjin, China

4Institute of Biochemistry, Justus Liebig University, Giessen, Germany

5Vascular Epigenetic Laboratory, Victor Chang Cardiac Research Institute, Sydney, Australia

6State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China

7Department of Pharmacology, Tianjin Medical Tianjin Medical University, Tianjin, China

Find articles by Wang, X. in: JCI | PubMed | Google Scholar |

1Department of Pharmacology, Tianjin Medical University, Tianjin, China

2Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China

3Laboratory of Molecular ophthalmology, Tianjin Medical University, Tianjin, China

4Institute of Biochemistry, Justus Liebig University, Giessen, Germany

5Vascular Epigenetic Laboratory, Victor Chang Cardiac Research Institute, Sydney, Australia

6State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China

7Department of Pharmacology, Tianjin Medical Tianjin Medical University, Tianjin, China

Find articles by Schmitz, M. in: JCI | PubMed | Google Scholar |

1Department of Pharmacology, Tianjin Medical University, Tianjin, China

2Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China

3Laboratory of Molecular ophthalmology, Tianjin Medical University, Tianjin, China

4Institute of Biochemistry, Justus Liebig University, Giessen, Germany

5Vascular Epigenetic Laboratory, Victor Chang Cardiac Research Institute, Sydney, Australia

6State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China

7Department of Pharmacology, Tianjin Medical Tianjin Medical University, Tianjin, China

Find articles by Liu, R. in: JCI | PubMed | Google Scholar

1Department of Pharmacology, Tianjin Medical University, Tianjin, China

2Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China

3Laboratory of Molecular ophthalmology, Tianjin Medical University, Tianjin, China

4Institute of Biochemistry, Justus Liebig University, Giessen, Germany

5Vascular Epigenetic Laboratory, Victor Chang Cardiac Research Institute, Sydney, Australia

6State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China

7Department of Pharmacology, Tianjin Medical Tianjin Medical University, Tianjin, China

Find articles by Han, Z. in: JCI | PubMed | Google Scholar

1Department of Pharmacology, Tianjin Medical University, Tianjin, China

2Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China

3Laboratory of Molecular ophthalmology, Tianjin Medical University, Tianjin, China

4Institute of Biochemistry, Justus Liebig University, Giessen, Germany

5Vascular Epigenetic Laboratory, Victor Chang Cardiac Research Institute, Sydney, Australia

6State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China

7Department of Pharmacology, Tianjin Medical Tianjin Medical University, Tianjin, China

Find articles by Wang, L. in: JCI | PubMed | Google Scholar

1Department of Pharmacology, Tianjin Medical University, Tianjin, China

2Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China

3Laboratory of Molecular ophthalmology, Tianjin Medical University, Tianjin, China

4Institute of Biochemistry, Justus Liebig University, Giessen, Germany

5Vascular Epigenetic Laboratory, Victor Chang Cardiac Research Institute, Sydney, Australia

6State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China

7Department of Pharmacology, Tianjin Medical Tianjin Medical University, Tianjin, China

Find articles by Zheng, X. in: JCI | PubMed | Google Scholar |

Published January 24, 2023 - More info

JCI Insight. https://doi.org/10.1172/jci.insight.160372.
Copyright © 2023, Yang et al. This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
Published January 24, 2023 - Version history
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Abstract

Loss of function mutations in CCM genes and gain of function mutation in the MAP3K3 gene encoding MEKK3 cause cerebral cavernous malformation (CCM). Deficiency of CCM proteins leads to the activation of MEKK3-KLF2/4 signaling, but it is not clear how this occurs. Here we demonstrate that deletion of the CCM3 interacting kinases STK24/25 in endothelial cells cause defects in vascular patterning during development as well as CCM lesion formation during postnatal life. While permanent deletion of STK24/25 in endothelial cells caused developmental defects of the vascular system, inducible postnatal deletion of STK24/25 impaired angiogenesis in the retina and brain. More importantly, deletion of STK24/25 in neonatal mice led to the development of severe CCM lesions. At the molecular level, a hybrid protein consisting of the STK kinase domain and the MEKK3 interacting domain of CCM2 rescued the vascular phenotype caused by the loss of ccm gene function in zebrafish. Our study suggests that CCM2/3 proteins act as adapters to allow recruitment of STK24/25 to limit the constitutive MEKK3 activity that contributes to vessel stability. Loss of STK24/25 causes MEKK3 activation leading to CCM lesion formation.

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  • Version 2 (March 8, 2023): Electronic publication

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