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Teng Z, Yang L, Zhang Q, Chen Y, Wang X, Zheng Y, Tian A, Tian D, Lin Z, Deng WM, Liu H. Topoisomerase I is an evolutionarily conserved key regulator for satellite DNA transcription. Nat Commun 2024; 15:5151. [PMID: 38886382 PMCID: PMC11183047 DOI: 10.1038/s41467-024-49567-5] [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: 03/26/2024] [Accepted: 06/11/2024] [Indexed: 06/20/2024] Open
Abstract
RNA Polymerase (RNAP) II transcription on non-coding repetitive satellite DNAs plays an important role in chromosome segregation, but a little is known about the regulation of satellite transcription. We here show that Topoisomerase I (TopI), not TopII, promotes the transcription of α-satellite DNAs, the main type of satellite DNAs on human centromeres. Mechanistically, TopI localizes to centromeres, binds RNAP II and facilitates RNAP II elongation. Interestingly, in response to DNA double-stranded breaks (DSBs), α-satellite transcription is dramatically stimulated in a DNA damage checkpoint-independent but TopI-dependent manner, and these DSB-induced α-satellite RNAs form into strong speckles in the nucleus. Remarkably, TopI-dependent satellite transcription also exists in mouse 3T3 and Drosophila S2 cells and in Drosophila larval imaginal wing discs and tumor tissues. Altogether, our findings herein reveal an evolutionally conserved mechanism with TopI as a key player for the regulation of satellite transcription at both cellular and animal levels.
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Affiliation(s)
- Zhen Teng
- Department of Biochemistry & Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
| | - Lu Yang
- Department of Biochemistry & Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
| | - Qian Zhang
- Department of Biochemistry & Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
| | - Yujue Chen
- Department of Biochemistry & Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
| | - Xianfeng Wang
- Department of Biochemistry & Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
| | - Yiran Zheng
- Department of Biochemistry & Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
| | - Aiguo Tian
- Department of Biochemistry & Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
- Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA, 70112, USA
- Tulane Aging Center, Tulane University School of Medicine, New Orleans, LA, 70112, USA
| | - Di Tian
- Department of Pathology & Laboratory Medicine, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
| | - Zhen Lin
- Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA, 70112, USA
- Department of Pathology & Laboratory Medicine, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
| | - Wu-Min Deng
- Department of Biochemistry & Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
- Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA, 70112, USA
| | - Hong Liu
- Department of Biochemistry & Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA.
- Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA, 70112, USA.
- Tulane Aging Center, Tulane University School of Medicine, New Orleans, LA, 70112, USA.
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Teng Z, Yang L, Zhang Q, Chen Y, Wang X, Zheng Y, Tian A, Tian D, Lin Z, Deng WM, Liu H. Topoisomerase I is an Evolutionarily Conserved Key Regulator for Satellite DNA Transcription. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.03.592391. [PMID: 38746280 PMCID: PMC11092777 DOI: 10.1101/2024.05.03.592391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Repetitive satellite DNAs, divergent in nucleic-acid sequence and size across eukaryotes, provide a physical site for centromere assembly to orchestrate chromosome segregation during the cell cycle. These non-coding DNAs are transcribed by RNA polymerase (RNAP) II and the transcription has been shown to play a role in chromosome segregation, but a little is known about the regulation of centromeric transcription, especially in higher organisms with tandemly-repeated-DNA-sequence centromeres. Using RNA interference knockdown, chemical inhibition and AID/IAA degradation, we show that Topoisomerase I (TopI), not TopII, promotes the transcription of α-satellite DNAs, the main type of satellite on centromeres in human cells. Mechanistically, TopI localizes to centromeres, binds RNAP II and facilitates RNAP II elongation on centromeres. Interestingly, in response to DNA double-stranded breaks (DSBs) induced by chemotherapy drugs or CRSPR/Cas9, α-satellite transcription is dramatically stimulated in a DNA damage checkpoint-independent but TopI-dependent manner. These DSB-induced α-satellite RNAs were predominantly derived from the α-satellite high-order repeats of human centromeres and forms into strong speckles in the nucleus. Remarkably, TopI-dependent satellite transcription also exists in mouse 3T3 and Drosophila S2 cells and in Drosophila larval imaginal wing discs and tumor tissues. Altogether, our findings herein reveal an evolutionally conserved mechanism with TopI as a key player for the regulation of satellite transcription at both cellular and animal levels.
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Affiliation(s)
- Zhen Teng
- Department of Biochemistry & Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA 70112, USA
- Contribute equally
| | - Lu Yang
- Department of Biochemistry & Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA 70112, USA
- Contribute equally
| | - Qian Zhang
- Department of Biochemistry & Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA 70112, USA
- Contribute equally
| | - Yujue Chen
- Department of Biochemistry & Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA 70112, USA
| | - Xianfeng Wang
- Department of Biochemistry & Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA 70112, USA
| | - Yiran Zheng
- Department of Biochemistry & Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA 70112, USA
| | - Aiguo Tian
- Department of Biochemistry & Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA 70112, USA
- Tulane Aging Center, Tulane University School of Medicine, New Orleans, LA, 70112, USA
| | - Di Tian
- Department of Pathology & Laboratory Medicine, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA 70112, USA
| | - Zhen Lin
- Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA, 70112, USA
- Department of Pathology & Laboratory Medicine, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA 70112, USA
| | - Wu-Min Deng
- Department of Biochemistry & Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA 70112, USA
- Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA, 70112, USA
| | - Hong Liu
- Department of Biochemistry & Molecular Biology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA 70112, USA
- Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA, 70112, USA
- Tulane Aging Center, Tulane University School of Medicine, New Orleans, LA, 70112, USA
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Wang Y, Tamori Y. Polyploid Cancer Cell Models in Drosophila. Genes (Basel) 2024; 15:96. [PMID: 38254985 PMCID: PMC10815460 DOI: 10.3390/genes15010096] [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: 11/06/2023] [Revised: 01/04/2024] [Accepted: 01/12/2024] [Indexed: 01/24/2024] Open
Abstract
Cells with an abnormal number of chromosomes have been found in more than 90% of solid tumors, and among these, polyploidy accounts for about 40%. Polyploidized cells most often have duplicate centrosomes as well as genomes, and thus their mitosis tends to promote merotelic spindle attachments and chromosomal instability, which produces a variety of aneuploid daughter cells. Polyploid cells have been found highly resistant to various stress and anticancer therapies, such as radiation and mitogenic inhibitors. In other words, common cancer therapies kill proliferative diploid cells, which make up the majority of cancer tissues, while polyploid cells, which lurk in smaller numbers, may survive. The surviving polyploid cells, prompted by acute environmental changes, begin to mitose with chromosomal instability, leading to an explosion of genetic heterogeneity and a concomitant cell competition and adaptive evolution. The result is a recurrence of the cancer during which the tenacious cells that survived treatment express malignant traits. Although the presence of polyploid cells in cancer tissues has been observed for more than 150 years, the function and exact role of these cells in cancer progression has remained elusive. For this reason, there is currently no effective therapeutic treatment directed against polyploid cells. This is due in part to the lack of suitable experimental models, but recently several models have become available to study polyploid cells in vivo. We propose that the experimental models in Drosophila, for which genetic techniques are highly developed, could be very useful in deciphering mechanisms of polyploidy and its role in cancer progression.
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Affiliation(s)
| | - Yoichiro Tamori
- Department of Molecular Oncology, Kyoto University Graduate School of Medicine, Kyoto 606-8501, Japan
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Sun C, Shao Y, Iqbal J. Insect Insights at the Single-Cell Level: Technologies and Applications. Cells 2023; 13:91. [PMID: 38201295 PMCID: PMC10777908 DOI: 10.3390/cells13010091] [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: 11/22/2023] [Revised: 12/23/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024] Open
Abstract
Single-cell techniques are a promising way to unravel the complexity and heterogeneity of transcripts at the cellular level and to reveal the composition of different cell types and functions in a tissue or organ. In recent years, advances in single-cell RNA sequencing (scRNA-seq) have further changed our view of biological systems. The application of scRNA-seq in insects enables the comprehensive characterization of both common and rare cell types and cell states, the discovery of new cell types, and revealing how cell types relate to each other. The recent application of scRNA-seq techniques to insect tissues has led to a number of exciting discoveries. Here we provide an overview of scRNA-seq and its application in insect research, focusing on biological applications, current challenges, and future opportunities to make new discoveries with scRNA-seq in insects.
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Affiliation(s)
- Chao Sun
- Analysis Center of Agrobiology and Environmental Sciences, Zhejiang University, Hangzhou 310058, China;
| | - Yongqi Shao
- Institute of Sericulture and Apiculture, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Junaid Iqbal
- Institute of Sericulture and Apiculture, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
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Tian A, Wang X, Xu Y, Morejon V, Huang Y, Nwapuda C, Deng W. EGFR signaling controls directionality of epithelial multilayer formation upon loss of cell polarity. EMBO J 2023; 42:e113856. [PMID: 37953688 PMCID: PMC10711663 DOI: 10.15252/embj.2023113856] [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: 02/22/2023] [Revised: 10/18/2023] [Accepted: 10/20/2023] [Indexed: 11/14/2023] Open
Abstract
Apical-basal polarity is maintained by distinct protein complexes that reside in membrane junctions, and polarity loss in monolayered epithelial cells can lead to formation of multilayers, cell extrusion, and/or malignant overgrowth. Yet, how polarity loss cooperates with intrinsic signals to control directional invasion toward neighboring epithelial cells remains elusive. Using the Drosophila ovarian follicular epithelium as a model, we found that posterior follicle cells with loss of lethal giant larvae (lgl) or Discs large (Dlg) accumulate apically toward germline cells, whereas cells with loss of Bazooka (Baz) or atypical protein kinase C (aPKC) expand toward the basal side of wildtype neighbors. Further studies revealed that these distinct multilayering patterns in the follicular epithelium were determined by epidermal growth factor receptor (EGFR) signaling and its downstream target Pointed, a zinc-finger transcription factor. Additionally, we identified Rho kinase as a Pointed target that regulates formation of distinct multilayering patterns. These findings provide insight into how cell polarity genes and receptor tyrosine kinase signaling interact to govern epithelial cell organization and directional growth that contribute to epithelial tumor formation.
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Affiliation(s)
- Aiguo Tian
- Department of Biochemistry and Molecular BiologyTulane University School of Medicine, Louisiana Cancer Research CenterNew OrleansLAUSA
- Tulane Aging CenterTulane University School of MedicineNew OrleansLAUSA
| | - Xian‐Feng Wang
- Department of Biochemistry and Molecular BiologyTulane University School of Medicine, Louisiana Cancer Research CenterNew OrleansLAUSA
| | - Yuting Xu
- Department of Biochemistry and Molecular BiologyTulane University School of Medicine, Louisiana Cancer Research CenterNew OrleansLAUSA
| | - Virginia Morejon
- Department of Biochemistry and Molecular BiologyTulane University School of Medicine, Louisiana Cancer Research CenterNew OrleansLAUSA
| | - Yi‐Chun Huang
- Department of Biochemistry and Molecular BiologyTulane University School of Medicine, Louisiana Cancer Research CenterNew OrleansLAUSA
| | - Chidi Nwapuda
- Department of Biochemistry and Molecular BiologyTulane University School of Medicine, Louisiana Cancer Research CenterNew OrleansLAUSA
| | - Wu‐Min Deng
- Department of Biochemistry and Molecular BiologyTulane University School of Medicine, Louisiana Cancer Research CenterNew OrleansLAUSA
- Tulane Aging CenterTulane University School of MedicineNew OrleansLAUSA
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Chatterjee D, Cong F, Wang XF, Machado Costa CA, Huang YC, Deng WM. Cell polarity opposes Jak/STAT-mediated Escargot activation that drives intratumor heterogeneity in a Drosophila tumor model. Cell Rep 2023; 42:112061. [PMID: 36709425 PMCID: PMC10374876 DOI: 10.1016/j.celrep.2023.112061] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 11/28/2022] [Accepted: 01/18/2023] [Indexed: 01/30/2023] Open
Abstract
In proliferating neoplasms, microenvironment-derived selective pressures promote tumor heterogeneity by imparting diverse capacities for growth, differentiation, and invasion. However, what makes a tumor cell respond to signaling cues differently from a normal cell is not well understood. In the Drosophila ovarian follicle cells, apicobasal-polarity loss induces heterogeneous epithelial multilayering. When exacerbated by oncogenic-Notch expression, this multilayer displays an increased consistency in the occurrence of morphologically distinguishable cells adjacent to the polar follicle cells. Polar cells release the Jak/STAT ligand Unpaired (Upd), in response to which neighboring polarity-deficient cells exhibit a precursor-like transcriptomic state. Among the several regulons active in these cells, we could detect and further validate the expression of Snail family transcription factor Escargot (Esg). We also ascertain a similar relationship between Upd and Esg in normally developing ovaries, where establishment of polarity determines early follicular differentiation. Overall, our results indicate that epithelial-cell polarity acts as a gatekeeper against microenvironmental selective pressures that drive heterogeneity.
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Affiliation(s)
- Deeptiman Chatterjee
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, LA 70112, USA
| | - Fei Cong
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, LA 70112, USA
| | - Xian-Feng Wang
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, LA 70112, USA
| | - Caique Almeida Machado Costa
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, LA 70112, USA
| | - Yi-Chun Huang
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, LA 70112, USA
| | - Wu-Min Deng
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, LA 70112, USA.
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Chai H, Pan C, Zhang M, Huo H, Shan H, Wu J. Histone methyltransferase SETD1A interacts with notch and promotes notch transactivation to augment ovarian cancer development. BMC Cancer 2023; 23:96. [PMID: 36707804 PMCID: PMC9883963 DOI: 10.1186/s12885-023-10573-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 12/27/2022] [Accepted: 01/23/2023] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND High expression of SETD1A, a histone methyltransferase that specifically methylates H3K4, acted as a key oncogene in several human cancers. However, the function and underlying molecular mechanism of SETD1A in ovarian cancer (OV) remain markedly unknown. METHODS The expression of SETD1A in OV were detected by Western blot and analyzed online, and the prognosis of STED1A in OV were analyzed online. The protein and mRNA levels were determined by Western blot and RT-qPCR. The cell proliferatin, migration and invasion were measured by CCK-8 and transwell assays. The protein interaction was detected by co-IP assay. The interaction between protein and DNA was performed by ChIP assay. The tumor growth in vivo was performed by xenograft tumor model. RESULTS SETD1A was overexpressed in OV and a predictor of poor prognosis. Overexpression of SETD1A augmented the abilities of cell proliferation, migration, and invasion in MRG1 and OVCAR5 cells. In comparison, SETD1A knockdown suppressed cell growth, migration, and invasion in SKOV3 and Caov3 cells. Specifically, SETD1A enhanced Notch signaling by promoting the expression of Notch target genes, such as Hes1, Hey1, Hey2, and Heyl. Mechanistically, SETD1A interacted with Notch1 and methylated H3K4me3 at Notch1 targets to enhance Notch signaling. In addition, restoration of Notch1 in SETD1A-knockdown OV cells recovered cell proliferation, migration and invasion, which was inhibited by SETD1A knockdown. Furthermore, reduction of SETD1A suppressed tumorigenesis in vivo. CONCLUSION In conclusion, our results highlighted the key role of SETD1A in OV development and proved that SETD1A promotes OV development by enhancing Notch1 signaling, indicating that SETD1A may be a novel target for OV treatment.
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Affiliation(s)
- Hongjuan Chai
- grid.412523.30000 0004 0386 9086Department of Gynecology and Obstetrics, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Chunpeng Pan
- grid.412523.30000 0004 0386 9086Department of General Surgery, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Mingyang Zhang
- grid.263761.70000 0001 0198 0694Department of Forensic Sciences, Soochow University, Suzhou, China
| | - Haizhong Huo
- grid.412523.30000 0004 0386 9086Department of General Surgery, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Haiyan Shan
- grid.89957.3a0000 0000 9255 8984Department of Obstetrics and Gynecology, The Affiliated Suzhou Hospital of Nanjing Medical University, 242, Guangji Road, 215000 Suzhou, China
| | - Jugang Wu
- grid.412523.30000 0004 0386 9086Department of General Surgery, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
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Enomoto M, Igaki T. Cell-cell interactions that drive tumorigenesis in Drosophila. Fly (Austin) 2022; 16:367-381. [PMID: 36413374 PMCID: PMC9683056 DOI: 10.1080/19336934.2022.2148828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Cell-cell interactions within tumour microenvironment play crucial roles in tumorigenesis. Genetic mosaic techniques available in Drosophila have provided a powerful platform to study the basic principles of tumour growth and progression via cell-cell communications. This led to the identification of oncogenic cell-cell interactions triggered by endocytic dysregulation, mitochondrial dysfunction, cell polarity defects, or Src activation in Drosophila imaginal epithelia. Such oncogenic cooperations can be caused by interactions among epithelial cells, mesenchymal cells, and immune cells. Moreover, microenvironmental factors such as nutrients, local tissue structures, and endogenous growth signalling activities critically affect tumorigenesis. Dissecting various types of oncogenic cell-cell interactions at the single-cell level in Drosophila will greatly increase our understanding of how tumours progress in living animals.
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Affiliation(s)
- Masato Enomoto
- Laboratory of Genetics, Graduate School of Biostudies, Kyoto University, Yoshida-Konoecho, Kyoto, Japan
| | - Tatsushi Igaki
- Laboratory of Genetics, Graduate School of Biostudies, Kyoto University, Yoshida-Konoecho, Kyoto, Japan,CONTACT Tatsushi Igaki
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Chatterjee D, Costa CAM, Wang XF, Jevitt A, Huang YC, Deng WM. Single-cell transcriptomics identifies Keap1-Nrf2 regulated collective invasion in a Drosophila tumor model. eLife 2022; 11:80956. [PMID: 36321803 PMCID: PMC9708074 DOI: 10.7554/elife.80956] [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: 06/10/2022] [Accepted: 11/01/2022] [Indexed: 11/30/2022] Open
Abstract
Apicobasal cell polarity loss is a founding event in epithelial-mesenchymal transition and epithelial tumorigenesis, yet how pathological polarity loss links to plasticity remains largely unknown. To understand the mechanisms and mediators regulating plasticity upon polarity loss, we performed single-cell RNA sequencing of Drosophila ovaries, where inducing polarity-gene l(2)gl-knockdown (Lgl-KD) causes invasive multilayering of the follicular epithelia. Analyzing the integrated Lgl-KD and wildtype transcriptomes, we discovered the cells specific to the various discernible phenotypes and characterized the underlying gene expression. A genetic requirement of Keap1-Nrf2 signaling in promoting multilayer formation of Lgl-KD cells was further identified. Ectopic expression of Keap1 increased the volume of delaminated follicle cells that showed enhanced invasive behavior with significant changes to the cytoskeleton. Overall, our findings describe the comprehensive transcriptome of cells within the follicle cell tumor model at the single-cell resolution and identify a previously unappreciated link between Keap1-Nrf2 signaling and cell plasticity at early tumorigenesis.
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Affiliation(s)
- Deeptiman Chatterjee
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, United States
| | - Caique Almeida Machado Costa
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, United States
| | - Xian-Feng Wang
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, United States
| | - Allison Jevitt
- Department of Biological Science, Florida State University, Tallahassee, United States
| | - Yi-Chun Huang
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, United States
| | - Wu-Min Deng
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, Tulane Cancer Center, New Orleans, United States.,Department of Biological Science, Florida State University, Tallahassee, United States
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