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Bhalla D, Sati S, Basel D, Karody V. A novel termination site in a case of Stüve-Wiedemann syndrome: case report and review of literature. Front Pediatr 2024; 12:1341841. [PMID: 38628360 PMCID: PMC11018973 DOI: 10.3389/fped.2024.1341841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 03/18/2024] [Indexed: 04/19/2024] Open
Abstract
Stüve-Wiedemann syndrome (SWS) is a rare autosomal recessive disorder that is characterized by bowing of long bones, dysautonomia, temperature dysregulation, swallowing and feeding difficulties, and frequent respiratory infections. Respiratory distress and hyperthermic events are the leading causes of early neonatal death, and most patients are not expected to survive past infancy. Here, we report on the survival of a 5-year-old male with SWS, discussing his case presentation, providing a brief clinical course, and discussing the outcome. This case adds to the literature surrounding rare instances of childhood survivors of SWS and raises awareness for this syndrome to facilitate an earlier recognition, intervention, and genetic counseling for the families, thereby improving understanding of this disease and the health outcomes for the children affected by this condition.
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Affiliation(s)
- Deepali Bhalla
- Medical College of Wisconsin, Milwaukee, WI, United States
| | - Sunil Sati
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Donald Basel
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Vijender Karody
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, United States
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Zeng Q, Wan Y, Zhu P, Zhao M, Jiang F, Chen J, Tang M, Zhu X, Li Y, Zha H, Wang Y, Hu M, Mo X, Zhang Y, Chen Y, Chen Y, Ye X, Bodmer R, Ocorr K, Jiang Z, Zhuang J, Yuan W, Wu X. The bHLH Protein Nulp1 is Essential for Femur Development Via Acting as a Cofactor in Wnt Signaling in Drosophila. Curr Mol Med 2019; 17:509-517. [PMID: 29437009 PMCID: PMC5898038 DOI: 10.2174/1566524018666180212145714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 01/27/2018] [Accepted: 02/09/2018] [Indexed: 11/22/2022]
Abstract
Background: The basic helix-loop-helix (bHLH) protein families are a large class of transcription factors, which are associated with cell proliferation, tissue differentiation, and other important development processes. We reported that the Nuclear localized protein-1 (Nulp1) might act as a novel bHLH transcriptional factor to mediate cellular functions. However, its role in development in vivo remains unknown. Methods: Nulp1 (dNulp1) mutants are generated by CRISPR/Cas9 targeting the Domain of Unknown Function (DUF654) in its C terminal. Expression of Wg target genes are analyzed by qRT-PCR. We use the Top-Flash luciferase reporter assay to response to Wg signaling. Results: Here we show that Drosophila Nulp1 (dNulp1) mutants, generated by CRISPR/Cas9 targeting the Domain of Unknown Function (DUF654) in its C terminal, are partially homozygous lethal and the rare escapers have bent femurs, which are similar to the major manifestation of congenital bent-bone dysplasia in human Stuve-Weidemann syndrome. The fly phenotype can be rescued by dNulp1 over-expression, indicating that dNulp1 is essential for fly femur development and survival. Moreover, dNulp1 overexpression suppresses the notch wing phenotype caused by the overexpression of sgg/GSK3β, an inhibitor of the canonical Wnt cascade. Furthermore, qRT-PCR analyses show that seven target genes positively regulated by Wg signaling pathway are down-regulated in response to dNulp1 knockout, while two negatively regulated Wg targets are up-regulated in dNulp1 mutants. Finally, dNulp1 overexpression significantly activates the Top-Flash Wnt signaling reporter. Conclusion: We conclude that bHLH protein dNulp1 is essential for femur development and survival in Drosophila by acting as a positive cofactor in Wnt/Wingless signaling.
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Affiliation(s)
- Q Zeng
- The Center for Heart Development, State Key Laboratory of Development Biology, Key Laboratory of MOE for Development Biology and Protein Chemistry, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Y Wan
- The Center for Heart Development, State Key Laboratory of Development Biology, Key Laboratory of MOE for Development Biology and Protein Chemistry, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - P Zhu
- Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510100, China
| | - M Zhao
- Department of Pediatrics, the Third Xiangya Hospital, Central South University, Changsha, 410013, China
| | - F Jiang
- The Center for Heart Development, State Key Laboratory of Development Biology, Key Laboratory of MOE for Development Biology and Protein Chemistry, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - J Chen
- Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510100, China
| | - M Tang
- The Center for Heart Development, State Key Laboratory of Development Biology, Key Laboratory of MOE for Development Biology and Protein Chemistry, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - X Zhu
- Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510100, China
| | - Y Li
- The Center for Heart Development, State Key Laboratory of Development Biology, Key Laboratory of MOE for Development Biology and Protein Chemistry, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - H Zha
- The Center for Heart Development, State Key Laboratory of Development Biology, Key Laboratory of MOE for Development Biology and Protein Chemistry, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Y Wang
- The Center for Heart Development, State Key Laboratory of Development Biology, Key Laboratory of MOE for Development Biology and Protein Chemistry, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - M Hu
- The Center for Heart Development, State Key Laboratory of Development Biology, Key Laboratory of MOE for Development Biology and Protein Chemistry, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - X Mo
- The Center for Heart Development, State Key Laboratory of Development Biology, Key Laboratory of MOE for Development Biology and Protein Chemistry, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Y Zhang
- The Center for Heart Development, State Key Laboratory of Development Biology, Key Laboratory of MOE for Development Biology and Protein Chemistry, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Y Chen
- The Center for Heart Development, State Key Laboratory of Development Biology, Key Laboratory of MOE for Development Biology and Protein Chemistry, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Y Chen
- The Center for Heart Development, State Key Laboratory of Development Biology, Key Laboratory of MOE for Development Biology and Protein Chemistry, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - X Ye
- The Center for Heart Development, State Key Laboratory of Development Biology, Key Laboratory of MOE for Development Biology and Protein Chemistry, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - R Bodmer
- Development, Aging and Regeneration Program, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, CA 92037, United States
| | - K Ocorr
- Development, Aging and Regeneration Program, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, CA 92037, United States
| | - Z Jiang
- The Center for Heart Development, State Key Laboratory of Development Biology, Key Laboratory of MOE for Development Biology and Protein Chemistry, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - J Zhuang
- Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510100, China
| | - W Yuan
- The Center for Heart Development, State Key Laboratory of Development Biology, Key Laboratory of MOE for Development Biology and Protein Chemistry, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - X Wu
- The Center for Heart Development, State Key Laboratory of Development Biology, Key Laboratory of MOE for Development Biology and Protein Chemistry, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
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Robertson JC, Jorcyk CL, Oxford JT. DICER1 Syndrome: DICER1 Mutations in Rare Cancers. Cancers (Basel) 2018; 10:cancers10050143. [PMID: 29762508 PMCID: PMC5977116 DOI: 10.3390/cancers10050143] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 05/13/2018] [Accepted: 05/14/2018] [Indexed: 12/20/2022] Open
Abstract
DICER1 syndrome is a rare genetic disorder that predisposes individuals to multiple cancer types. Through mutations of the gene encoding the endoribonuclease, Dicer, DICER1 syndrome disrupts the biogenesis and processing of miRNAs with subsequent disruption in control of gene expression. Since the first description of DICER1 syndrome, case reports have documented novel germline mutations of the DICER1 gene in patients with cancers as well as second site mutations that alter the function of the Dicer protein expressed. Here, we present a review of mutations in the DICER1 gene, the respective protein sequence changes, and clinical manifestations of DICER1 syndrome. Directions for future research are discussed.
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Affiliation(s)
- Jake C Robertson
- Department of Biological Sciences, Boise State University, Boise, ID 83725-1515, USA.
| | - Cheryl L Jorcyk
- Department of Biological Sciences, Boise State University, Boise, ID 83725-1515, USA.
- Biomolecular Research Center, Boise State University, Boise, ID 83725-1511, USA.
| | - Julia Thom Oxford
- Department of Biological Sciences, Boise State University, Boise, ID 83725-1515, USA.
- Biomolecular Research Center, Boise State University, Boise, ID 83725-1511, USA.
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