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Zeng H, Liu A. TMEM132A regulates mouse hindgut morphogenesis and caudal development. Development 2023; 150:dev201630. [PMID: 37390294 PMCID: PMC10357036 DOI: 10.1242/dev.201630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 06/23/2023] [Indexed: 07/02/2023]
Abstract
Caudal developmental defects, including caudal regression, caudal dysgenesis and sirenomelia, are devastating conditions affecting the skeletal, nervous, digestive, reproductive and excretory systems. Defects in mesodermal migration and blood supply to the caudal region have been identified as possible causes of caudal developmental defects, but neither satisfactorily explains the structural malformations in all three germ layers. Here, we describe caudal developmental defects in transmembrane protein 132a (Tmem132a) mutant mice, including skeletal, posterior neural tube closure, genitourinary tract and hindgut defects. We show that, in Tmem132a mutant embryos, visceral endoderm fails to be excluded from the medial region of early hindgut, leading directly to the loss or malformation of cloaca-derived genitourinary and gastrointestinal structures, and indirectly to the neural tube and kidney/ureter defects. We find that TMEM132A mediates intercellular interaction, and physically interacts with planar cell polarity (PCP) regulators CELSR1 and FZD6. Genetically, Tmem132a regulates neural tube closure synergistically with another PCP regulator Vangl2. In summary, we have identified Tmem132a as a new regulator of PCP, and hindgut malformation as the underlying cause of developmental defects in multiple caudal structures.
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Affiliation(s)
- Huiqing Zeng
- Department of Biology, Eberly College of Science and Huck Institute of Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Aimin Liu
- Department of Biology, Eberly College of Science and Huck Institute of Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
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Luo J, Abid M, Tu J, Cai X, Zhang Y, Gao P, Huang H. Cytosine base editors (CBEs) for inducing targeted DNA base editing in Nicotiana benthamiana. BMC PLANT BIOLOGY 2023; 23:305. [PMID: 37286962 DOI: 10.1186/s12870-023-04322-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 05/28/2023] [Indexed: 06/09/2023]
Abstract
BACKGROUND The base editors can introduce point mutations accurately without causing double-stranded DNA breaks or requiring donor DNA templates. Previously, cytosine base editors (CBEs) containing different deaminases are reported for precise and accurate base editing in plants. However, the knowledge of CBEs in polyploid plants is inadequate and needs further exploration. RESULTS In the present study, we constructed three polycistronic tRNA-gRNA expression cassettes CBEs containing A3A, A3A (Y130F), and rAPOBEC1(R33A) to compare their base editing efficiency in allotetraploid N. benthamiana (n = 4x). We used 14 target sites to compare their editing efficiency using transient transformation in tobacco plants. The sanger sequencing and deep sequencing results showed that A3A-CBE was the most efficient base editor. In addition, the results showed that A3A-CBE provided most comprehensive editing window (C1 ~ C17 could be edited) and had a better editing efficiency under the base background of TC. The target sites (T2 and T6) analysis in transformed N. benthamiana showed that only A3A-CBE can have C-to-T editing events and the editing efficiency of T2 was higher than T6. Additionally, no off-target events were found in transformed N. benthamiana. CONCLUSIONS All in all, we conclude that A3A-CBE is the most suitable vector for specific C to T conversion in N. benthamiana. Current findings will provide valuable insights into selecting an appropriate base editor for breeding polyploid plants.
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Affiliation(s)
- Juan Luo
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang, 332900, China
- College of Life Science, Nanchang University, Nanchang, 330031, China
| | - Muhammad Abid
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang, 332900, China
| | - Jing Tu
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang, 332900, China
- College of Life Science, Nanchang University, Nanchang, 330031, China
| | - Xinxia Cai
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang, 332900, China
- College of Life Science, Nanchang University, Nanchang, 330031, China
| | - Yi Zhang
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang, 332900, China
- College of Life Science, Nanchang University, Nanchang, 330031, China
| | - Puxin Gao
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang, 332900, China
| | - Hongwen Huang
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang, 332900, China.
- College of Life Science, Nanchang University, Nanchang, 330031, China.
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Doldur-Balli F, Imamura T, Veatch OJ, Gong NN, Lim DC, Hart MP, Abel T, Kayser MS, Brodkin ES, Pack AI. Synaptic dysfunction connects autism spectrum disorder and sleep disturbances: A perspective from studies in model organisms. Sleep Med Rev 2022; 62:101595. [PMID: 35158305 PMCID: PMC9064929 DOI: 10.1016/j.smrv.2022.101595] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 12/24/2021] [Accepted: 01/19/2022] [Indexed: 01/03/2023]
Abstract
Sleep disturbances (SD) accompany many neurodevelopmental disorders, suggesting SD is a transdiagnostic process that can account for behavioral deficits and influence underlying neuropathogenesis. Autism Spectrum Disorder (ASD) comprises a complex set of neurodevelopmental conditions characterized by challenges in social interaction, communication, and restricted, repetitive behaviors. Diagnosis of ASD is based primarily on behavioral criteria, and there are no drugs that target core symptoms. Among the co-occurring conditions associated with ASD, SD are one of the most prevalent. SD often arises before the onset of other ASD symptoms. Sleep interventions improve not only sleep but also daytime behaviors in children with ASD. Here, we examine sleep phenotypes in multiple model systems relevant to ASD, e.g., mice, zebrafish, fruit flies and worms. Given the functions of sleep in promoting brain connectivity, neural plasticity, emotional regulation and social behavior, all of which are of critical importance in ASD pathogenesis, we propose that synaptic dysfunction is a major mechanism that connects ASD and SD. Common molecular targets in this interplay that are involved in synaptic function might be a novel avenue for therapy of individuals with ASD experiencing SD. Such therapy would be expected to improve not only sleep but also other ASD symptoms.
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Affiliation(s)
- Fusun Doldur-Balli
- Division of Sleep Medicine, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA.
| | - Toshihiro Imamura
- Division of Sleep Medicine, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA; Division of Pulmonary and Sleep Medicine, Children's Hospital of Philadelphia, Philadelphia, USA
| | - Olivia J Veatch
- Department of Psychiatry and Behavioral Sciences, School of Medicine, The University of Kansas Medical Center, Kansas City, USA
| | - Naihua N Gong
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
| | - Diane C Lim
- Pulmonary, Allergy, Critical Care and Sleep Medicine Division, Department of Medicine, Miller School of Medicine, University of Miami, Miami, USA
| | - Michael P Hart
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
| | - Ted Abel
- Iowa Neuroscience Institute and Department of Neuroscience & Pharmacology, University of Iowa, Iowa City, USA
| | - Matthew S Kayser
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA; Department of Neuroscience, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA; Chronobiology and Sleep Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
| | - Edward S Brodkin
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
| | - Allan I Pack
- Division of Sleep Medicine, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
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Chen Q, Fang J, Shen H, Chen L, Shi M, Huang X, Miao Z, Gong Y. Roles, molecular mechanisms, and signaling pathways of TMEMs in neurological diseases. Am J Transl Res 2021; 13:13273-13297. [PMID: 35035675 PMCID: PMC8748174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 11/10/2021] [Indexed: 06/14/2023]
Abstract
Transmembrane protein family members (TMEMs) span the entire lipid bilayer and act as channels that allow the transport of specific substances through biofilms. The functions of most TMEMs are unexplored. Numerous studies have shown that TMEMs are involved in the pathophysiological processes of various nervous system diseases, but the specific mechanisms of TMEMs in the pathogenesis of diseases remain unclear. In this review, we discuss the expression, physiological functions, and molecular mechanisms of TMEMs in brain tumors, psychiatric disorders, abnormal motor activity, cobblestone lissencephaly, neuropathic pain, traumatic brain injury, and other disorders of the nervous system. Additionally, we propose that TMEMs may be used as prognostic markers and potential therapeutic targets in patients with various neurological diseases.
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Affiliation(s)
- Qinghong Chen
- Affiliated Hospital of Jiangxi University of Traditional Chinese MedicineNanchang 330006, Jiangxi, China
| | - Junlin Fang
- Department of Acupuncture and Moxibustion, Banan Hospital of Traditional Chinese MedicineChongqing 401320, China
| | - Hui Shen
- Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese MedicineSuzhou 215600, Jiangsu, China
| | - Liping Chen
- Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese MedicineSuzhou 215600, Jiangsu, China
| | - Mengying Shi
- Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese MedicineSuzhou 215600, Jiangsu, China
| | - Xianbao Huang
- Affiliated Hospital of Jiangxi University of Traditional Chinese MedicineNanchang 330006, Jiangxi, China
| | - Zhiwei Miao
- Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese MedicineSuzhou 215600, Jiangsu, China
| | - Yating Gong
- Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese MedicineSuzhou 215600, Jiangsu, China
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Wang Z, Liu X, Xie X, Deng L, Zheng H, Pan H, Li D, Li L, Zhong C. ABE8e with Polycistronic tRNA-gRNA Expression Cassette Sig-Nificantly Improves Adenine Base Editing Efficiency in Nicotiana benthamiana. Int J Mol Sci 2021; 22:5663. [PMID: 34073486 PMCID: PMC8198424 DOI: 10.3390/ijms22115663] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 05/24/2021] [Accepted: 05/24/2021] [Indexed: 01/25/2023] Open
Abstract
Adenine base editor containing TadA8e (ABE8e) has been reported in rice. However, the application of ABE8e in other plant species has not been described, and the comparison between ABE8e and ABE7.10, which is widely used in plants, has also been poorly studied. Here, we developed the ABE8e with the polycistronic tRNA-gRNA expression cassette (PTG-ABE8e) and PTG-ABE7.10 and compared their A-to-G editing efficiencies using both transient and stable transformation in the allotetraploid Nicotiana benthamiana. We found that the editing efficiency of PTG-ABE8e was significantly higher than that of PTG-ABE7.10, indicating that ABE8e was more efficient for A-to-G conversion in N. benthamiana. We further optimized the ABE8e editing efficiency by changing the sgRNA expression cassette and demonstrated that both PTG and single transcript unit (STU) enhanced ABE8e efficiency for A-to-G conversion in N. benthamiana. We also estimated the potential off-target effect of PTG-ABE8e at potential off-targeting sites predicted using an online tool in transgenic plants, and no off-target editing event was found for potential off-targeting sites selected, indicating that ABE8e could specifically facilitate A-to-G conversion. Our results showed that ABE8e with PTG structure was more suitable for A-to-G conversion in N. benthamiana and provided valuable clues for optimizing ABE tools in other plants.
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Affiliation(s)
- Zupeng Wang
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; (X.L.); (X.X.); (L.D.); (H.Z.); (H.P.); (D.L.); (L.L.)
- Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, China
- Engineering Laboratory for Kiwifruit Industrial Technology, Chinese Academy of Sciences, Wuhan 430074, China
| | - Xiaoying Liu
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; (X.L.); (X.X.); (L.D.); (H.Z.); (H.P.); (D.L.); (L.L.)
- Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, China
- Engineering Laboratory for Kiwifruit Industrial Technology, Chinese Academy of Sciences, Wuhan 430074, China
| | - Xiaodong Xie
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; (X.L.); (X.X.); (L.D.); (H.Z.); (H.P.); (D.L.); (L.L.)
- Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, China
- Engineering Laboratory for Kiwifruit Industrial Technology, Chinese Academy of Sciences, Wuhan 430074, China
| | - Lei Deng
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; (X.L.); (X.X.); (L.D.); (H.Z.); (H.P.); (D.L.); (L.L.)
- Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, China
- Engineering Laboratory for Kiwifruit Industrial Technology, Chinese Academy of Sciences, Wuhan 430074, China
| | - Hao Zheng
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; (X.L.); (X.X.); (L.D.); (H.Z.); (H.P.); (D.L.); (L.L.)
- Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, China
- Engineering Laboratory for Kiwifruit Industrial Technology, Chinese Academy of Sciences, Wuhan 430074, China
| | - Hui Pan
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; (X.L.); (X.X.); (L.D.); (H.Z.); (H.P.); (D.L.); (L.L.)
- Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, China
- Engineering Laboratory for Kiwifruit Industrial Technology, Chinese Academy of Sciences, Wuhan 430074, China
| | - Dawei Li
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; (X.L.); (X.X.); (L.D.); (H.Z.); (H.P.); (D.L.); (L.L.)
- Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, China
- Engineering Laboratory for Kiwifruit Industrial Technology, Chinese Academy of Sciences, Wuhan 430074, China
| | - Li Li
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; (X.L.); (X.X.); (L.D.); (H.Z.); (H.P.); (D.L.); (L.L.)
- Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, China
- Engineering Laboratory for Kiwifruit Industrial Technology, Chinese Academy of Sciences, Wuhan 430074, China
| | - Caihong Zhong
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; (X.L.); (X.X.); (L.D.); (H.Z.); (H.P.); (D.L.); (L.L.)
- Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, China
- Engineering Laboratory for Kiwifruit Industrial Technology, Chinese Academy of Sciences, Wuhan 430074, China
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Correction: Efficient multiplexed genome engineering with a polycistronic tRNA and CRISPR guide-RNA reveals an important role of detonator in reproduction of Drosophila melanogaster. PLoS One 2021; 16:e0250188. [PMID: 33831121 PMCID: PMC8031732 DOI: 10.1371/journal.pone.0250188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
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