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Cao YW, Song M, Bi MM, Yang PP, He GR, Wang J, Yang Y, Xu LF, Ming J. Lily (Lilium spp.) LhERF4 negatively affects anthocyanin biosynthesis by suppressing Lh MYBSPLATTER transcription. Plant Sci 2024; 342:112026. [PMID: 38342186 DOI: 10.1016/j.plantsci.2024.112026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 02/04/2024] [Accepted: 02/07/2024] [Indexed: 02/13/2024]
Abstract
Anthocyanins are among the main pigments involved in the colouration of Asiatic hybrid lily (Lilium spp.). Ethylene, a plant ripening hormone, plays an important role in promoting plant maturation and anthocyanin biosynthesis. However, whether and how ethylene regulates anthocyanin biosynthesis in lily tepals have not been characterized. Using yeast one-hybrid screening, we previously identified an APETALA2 (AP2)/ETHYLENE RESPONSE FACTOR (ERF) named LhERF4 as a potential inhibitor of LhMYBSPLATTER-mediated negative regulation of anthocyanin biosynthesis in lily. Here, transcript and protein analysis of LhERF4, a transcriptional repressor, revealed that LhERF4 directly binds to the promoter of LhMYBSPLATTER. In addition, overexpression of LhERF4 in lily tepals negatively regulates the expression of key structural genes and the total anthocyanin content by suppressing the LhMYBSPLATTER gene. Moreover, the LhERF4 gene inhibits anthocyanin biosynthesis in response to ethylene, affecting anthocyanin accumulation and pigmentation in lily tepals. Collectively, our findings will advance and elucidate a novel regulatory network of anthocyanin biosynthesis in lily, and this research provides new insight into colouration regulation.
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Affiliation(s)
- Yu-Wei Cao
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China; College of Life Sciences, Key Laboratory of Nanling Plant Resource Protection and Utilization, GanNan Normal University, Ganzhou 341000, China
| | - Meng Song
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Meng-Meng Bi
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Pan-Pan Yang
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Guo-Ren He
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jing Wang
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yue Yang
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China; College of Landscape Architecture and Horticulture, Southwest Forestry University, Kunming 650224, China
| | - Lei-Feng Xu
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Jun Ming
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
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Keyl A, Kwas V, Lewandowska M, Herrfurth C, Kunst L, Feussner I. At MYB41 acts as a dual-function transcription factor that regulates the formation of lipids in an organ- and development-dependent manner. Plant Biol (Stuttg) 2024. [PMID: 38634447 DOI: 10.1111/plb.13650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 04/02/2024] [Indexed: 04/19/2024]
Abstract
The plant cuticle controls non-stomatal water loss and can serve as a barrier against biotic agents, whereas the heteropolymer suberin and its associated waxes are deposited constitutively at specific cell wall locations. While several transcription factors controlling cuticle formation have been identified, those involved in the transcriptional regulation of suberin biosynthesis remain poorly characterized. The major goal of this study was to further analyse the function of the R2R3-Myeloblastosis (MYB) transcription factor AtMYB41 in formation of the cuticle, suberin, and suberin-associated waxes throughout plant development. For functional analysis, the organ-specific expression pattern of AtMYB41 was analysed and Atmyb41ge alleles were generated using the CRISPR/Cas9 system. These were investigated for root growth and water permeability upon stress. In addition, the fatty acid, wax, cutin, and suberin monomer composition of different organs was evaluated by gas chromatography. The characterization of Atmyb41ge mutants revealed that AtMYB41 negatively regulates the production of cuticular lipids and fatty acid biosynthesis in leaves and seeds, respectively. Remarkably, biochemical analyses indicate that AtMYB41 also positively regulates the formation of cuticular waxes in stems of Arabidopsis thaliana. Overall, these results suggest that the AtMYB41 acts as a negative regulator of cuticle and fatty acid biosynthesis in leaves and seeds, respectively, but also as a positive regulator of wax production in A. thaliana stems.
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Affiliation(s)
- A Keyl
- Department of Plant Biochemistry, Albrecht-von-Haller-Institute, University of Goettingen, Goettingen, Germany
| | - V Kwas
- Department of Plant Biochemistry, Albrecht-von-Haller-Institute, University of Goettingen, Goettingen, Germany
| | - M Lewandowska
- Department of Plant Biochemistry, Albrecht-von-Haller-Institute, University of Goettingen, Goettingen, Germany
| | - C Herrfurth
- Department of Plant Biochemistry, Albrecht-von-Haller-Institute, University of Goettingen, Goettingen, Germany
- Service Unit for Metabolomics and Lipidomics, Goettingen Center for Molecular Biosciences (GZMB), University of Goettingen, Goettingen, Germany
| | - L Kunst
- Department of Botany, University of British Columbia, Vancouver, BC, Canada
| | - I Feussner
- Department of Plant Biochemistry, Albrecht-von-Haller-Institute, University of Goettingen, Goettingen, Germany
- Service Unit for Metabolomics and Lipidomics, Goettingen Center for Molecular Biosciences (GZMB), University of Goettingen, Goettingen, Germany
- Department of Plant Biochemistry, Goettingen Center for Molecular Biosciences (GZMB), University of Goettingen, Goettingen, Germany
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Huang J, Fehr A, Jäwert F, Nilsson JA, Morris LGT, Stenman G, Andersson MK. MYB alternative promoter activity is increased in adenoid cystic carcinoma metastases and is associated with a specific gene expression signature. Oral Oncol 2024; 151:106763. [PMID: 38493544 DOI: 10.1016/j.oraloncology.2024.106763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/21/2024] [Accepted: 03/12/2024] [Indexed: 03/19/2024]
Abstract
OBJECTIVE Adenoid cystic carcinoma (ACC) is a head and neck cancer with a poor long-term prognosis that shows frequent local recurrences and distant metastases. The tumors are characterized by MYB oncogene activation and are notoriously unresponsive to systemic therapies. The biological underpinnings behind therapy resistance of disseminated ACC are largely unknown. Here, we have studied the molecular and clinical significance of MYB alternative promoter (TSS2) usage in ACC metastases. MATERIALS AND METHODS MYB TSS2 activity was investigated in primary tumors and metastases from 26 ACC patients using RNA-sequencing and quantitative real-time PCR analysis. Differences in global gene expression between MYB TSS2 high and low cases were studied, and pathway analyses were performed. RESULTS MYB TSS2 activity was significantly higher in ACC metastases than in primary tumors (median activity 15.1 vs 3.0, P = 0.0003). MYB TSS2 high ACC metastases showed a specific gene expression signature, including increased expression of multi-drug resistance genes and canonical MYB target genes, and suppression of the p53 and NOTCH pathways. CONCLUSIONS Collectively, our findings indicate that elevated MYB TSS2 activity is associated with metastases, potential drug resistance, and augmented MYB-driven gene expression in ACC. Our study advocates the need for new therapies that specifically target MYB and drug resistance mechanisms in disseminated ACC.
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Affiliation(s)
- Junchi Huang
- Sahlgrenska Center for Cancer Research, Department of Pathology, University of Gothenburg, Gothenburg, Sweden
| | - André Fehr
- Sahlgrenska Center for Cancer Research, Department of Pathology, University of Gothenburg, Gothenburg, Sweden
| | - Fredrik Jäwert
- Sahlgrenska Center for Cancer Research, Department of Pathology, University of Gothenburg, Gothenburg, Sweden
| | - Jonas A Nilsson
- Harry Perkins Institute of Medical Research, University of Western Australia, Perth, Australia; Sahlgrenska Center for Cancer Research, Department of Surgery, Institute of Clinical Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Luc G T Morris
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Göran Stenman
- Sahlgrenska Center for Cancer Research, Department of Pathology, University of Gothenburg, Gothenburg, Sweden
| | - Mattias K Andersson
- Sahlgrenska Center for Cancer Research, Department of Pathology, University of Gothenburg, Gothenburg, Sweden.
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Fick A, Swart V, Bombarely A, van den Berg N. Comparative transcriptional analysis of Persea americana MYB, WRKY and AP2/ERF transcription factors following Phytophthora cinnamomi infection. Mol Plant Pathol 2024; 25:e13453. [PMID: 38590150 PMCID: PMC11002358 DOI: 10.1111/mpp.13453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 03/07/2024] [Accepted: 03/20/2024] [Indexed: 04/10/2024]
Abstract
Plant cells undergo extensive transcriptional reprogramming following pathogen infection, with these reprogramming patterns becoming more complex when pathogens, such as hemibiotrophs, exhibit different lifestyles. These transcriptional changes are often orchestrated by MYB, WRKY and AP2/ERF transcription factors (TFs), which modulate both growth and defence-related gene expression. Transcriptional analysis of defence-related genes in avocado (Persea americana) infected with Phytophthora cinnamomi indicated differential immune response activation when comparing a partially resistant and susceptible rootstock. This study identified 226 MYB, 82 WRKY, and 174 AP2/ERF TF-encoding genes in avocado, using a genome-wide approach. Phylogenetic analysis revealed substantial sequence conservation within TF groups underscoring their functional significance. RNA-sequencing analysis in a partially resistant and susceptible avocado rootstock infected with P. cinnamomi was indicative of an immune response switch occurring in either rootstock after 24 and 6 h post-inoculation, respectively. Different clusters of co-expressed TF genes were observed at these times, suggesting the activation of necrotroph-related immune responses at varying intervals between the two rootstocks. This study aids our understanding of avocado immune response activation following P. cinnamomi infection, and the role of the TFs therein, elucidating the transcriptional reprogramming disparities between partially resistant and susceptible rootstocks.
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Affiliation(s)
- Alicia Fick
- Department of Biochemistry, Genetics and MicrobiologyUniversity of PretoriaPretoriaGautengSouth Africa
- Hans Merensky Chair in Avocado Research, Forestry and Agricultural Biotechnology InstituteUniversity of PretoriaPretoriaGautengSouth Africa
| | - Velushka Swart
- Department of Biochemistry, Genetics and MicrobiologyUniversity of PretoriaPretoriaGautengSouth Africa
- Hans Merensky Chair in Avocado Research, Forestry and Agricultural Biotechnology InstituteUniversity of PretoriaPretoriaGautengSouth Africa
| | - Aureliano Bombarely
- Instituto de Biología Molecular y Celular de PlantasConsejo Superior de Investigaciones Científicas‐Universitat Politècnica de València (IBMCP‐CSIC‐UPV)ValenciaSpain
| | - Noëlani van den Berg
- Department of Biochemistry, Genetics and MicrobiologyUniversity of PretoriaPretoriaGautengSouth Africa
- Hans Merensky Chair in Avocado Research, Forestry and Agricultural Biotechnology InstituteUniversity of PretoriaPretoriaGautengSouth Africa
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Sun B, Shen Y, Zhu L, Yang X, Liu X, Li D, Zhu M, Miao X, Shi Z. OsmiR319-OsPCF5 modulate resistance to brown planthopper in rice through association with MYB proteins. BMC Biol 2024; 22:68. [PMID: 38520013 PMCID: PMC10960409 DOI: 10.1186/s12915-024-01868-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 03/13/2024] [Indexed: 03/25/2024] Open
Abstract
BACKGROUND The brown planthopper (BPH) is a kind of piercing-sucking insect specific to rice, with the damage tops the list of pathogens and insects in recent years. microRNAs (miRNAs) are pivotal regulators of plant-environment interactions, while the mechanism underlying their function against insects is largely unknown. RESULTS Here, we confirmed that OsmiR319, an ancient and conserved miRNA, negatively regulated resistance to BPHs, with overexpression of OsmiR319 susceptible to BPH, while suppression of OsmiR319 resistant to BPH in comparison with wild type. Meanwhile, we identified several targets of OsmiR319 that may mediate BPH resistance. Among them, OsPCF5 was the most obviously induced by BPH feeding, and over expression of OsPCF5 was resistance to BPH. In addition, various biochemical assays verified that OsPCF5 interacted with several MYB proteins, such as OsMYB22, OsMYB30, and OsMYB30C.Genetically, we revealed that both OsMYB22 and OsMYB30C positively regulated BPH resistance. Genetic interaction analyses confirmed that OsMYB22 and OsMYB30C both function in the same genetic pathway with OsmiR319b to mediate BPH resistance. CONCLUSIONS Altogether, we revealed that OsPCF5 regulates BPH resistance via association with several MYB proteins downstream of OsmiR319, these MYB proteins might function as regulators of BPH resistance through regulating the phenylpropane synthesis.
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Affiliation(s)
- Bo Sun
- Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yanjie Shen
- Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lin Zhu
- Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaofang Yang
- Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xue Liu
- National Engineering Research Center for Vegetables, Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Science, Beijing, 100097, People's Republic of China
| | - Dayong Li
- National Engineering Research Center for Vegetables, Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Science, Beijing, 100097, People's Republic of China
| | - Mulan Zhu
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai, 201602, China
| | - Xuexia Miao
- Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Zhenying Shi
- Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China.
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Wang S, Jiang R, Feng J, Zou H, Han X, Xie X, Zheng G, Fang C, Zhao J. Overexpression of transcription factor Fa MYB63 enhances salt tolerance by directly binding to the SOS1 promoter in Arabidopsis thaliana. Plant Mol Biol 2024; 114:32. [PMID: 38512490 DOI: 10.1007/s11103-024-01431-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 02/20/2024] [Indexed: 03/23/2024]
Abstract
Salinity is a pivotal abiotic stress factor with far-reaching consequences on global crop growth, yield, and quality and which includes strawberries. R2R3-MYB transcription factors encompass a range of roles in plant development and responses to abiotic stress. In this study, we identified that strawberry transcription factor FaMYB63 exhibited a significant upregulation in its expression under salt stress conditions. An analysis using yeast assay demonstrated that FaMYB63 exhibited the ability to activate transcriptional activity. Compared with those in the wild-type (WT) plants, the seed germination rate, root length, contents of chlorophyll and proline, and antioxidant activities (SOD, CAT, and POD) were significantly higher in FaMYB63-overexpressing Arabidopsis plants exposed to salt stress. Conversely, the levels of malondialdehyde (MDA) were considerably lower. Additionally, the FaMYB63-overexpressed Arabidopsis plants displayed a substantially improved capacity to scavenge active oxygen. Furthermore, the activation of stress-related genes by FaMYB63 bolstered the tolerance of transgenic Arabidopsis to salt stress. It was also established that FaMYB63 binds directly to the promoter of the salt overly sensitive gene SOS1, thereby activating its expression. These findings identified FaMYB63 as a possible and important regulator of salt stress tolerance in strawberries.
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Affiliation(s)
- Shuaishuai Wang
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518000, China
| | - Rongyi Jiang
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Jian Feng
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Haodong Zou
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Xiaohuan Han
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Xingbin Xie
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Guanghui Zheng
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Congbing Fang
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China.
| | - Jing Zhao
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China.
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Yang T, Wang Y, Li Y, Liang S, Yang Y, Huang Z, Li Y, Gao J, Ma N, Zhou X. Rh MYB17 regulates the homeotic transformation of floral organs in rose (Rosa hybrida) under cold stress. J Exp Bot 2024:erae099. [PMID: 38452221 DOI: 10.1093/jxb/erae099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Indexed: 03/09/2024]
Abstract
Low temperatures affect flower development in rose (Rosa hybrida), increasing petaloid stamen number and reducing normal stamen number. We identified the low-temperature-responsive R2R3-MYB transcription factor RhMYB17, which is homologous to Arabidopsis (Arabidopsis thaliana) MYB17. RhMYB17 was upregulated at low temperatures, and RhMYB17 transcripts accumulated in floral buds. Transient silencing of RhMYB17 by virus-induced gene silencing decreased petaloid stamen number and increased normal stamen number. According to the ABCDE model of floral organ identity, class A genes contribute to sepal and petal formation. Transcription factor binding analysis identified RhMYB17 binding sites in the promoters of rose APETALA2 (RhAP2) and APETALA2-LIKE (RhAP2L). Yeast one-hybrid assays, dual-luciferase reporter assays, and electrophoretic mobility shift assays confirmed that RhMYB17 directly binds to the promoters of RhAP2 and RhAP2L, thereby activating their expression. RNA sequencing further demonstrated that RhMYB17 plays a pivotal role in regulating the expression of class A genes, and indirectly influences the expression of class C gene. This study reveals a novel mechanism for the homeotic transformation of floral organs in response to low temperatures.
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Affiliation(s)
- Tuo Yang
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing, China
| | - Yi Wang
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing, China
| | - Yuqi Li
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing, China
| | - Shangyi Liang
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing, China
| | - Yunyao Yang
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing, China
| | - Ziwei Huang
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing, China
| | - Yonghong Li
- School of Applied Chemistry and Biotechnology, Shenzhen Polytechnic, Shenzhen, China
| | - Junping Gao
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing, China
| | - Nan Ma
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing, China
| | - Xiaofeng Zhou
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing, China
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Anand S, Vikramdeo KS, Sudan SK, Sharma A, Acharya S, Khan MA, Singh S, Singh AP. From modulation of cellular plasticity to potentiation of therapeutic resistance: new and emerging roles of MYB transcription factors in human malignancies. Cancer Metastasis Rev 2024; 43:409-421. [PMID: 37950087 PMCID: PMC11015973 DOI: 10.1007/s10555-023-10153-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 11/05/2023] [Indexed: 11/12/2023]
Abstract
MYB transcription factors are encoded by a large family of highly conserved genes from plants to vertebrates. There are three members of the MYB gene family in human, namely, MYB, MYBL1, and MYBL2 that encode MYB/c-MYB, MYBL1/A-MYB, and MYBL2/B-MYB, respectively. MYB was the first member to be identified as a cellular homolog of the v-myb oncogene carried by the avian myeloblastosis virus (AMV) causing leukemia in chickens. Under the normal scenario, MYB is predominantly expressed in hematopoietic tissues, colonic crypts, and neural stem cells and plays a role in maintaining the undifferentiated state of the cells. Over the years, aberrant expression of MYB genes has been reported in several malignancies and recent years have witnessed tremendous progress in understanding of their roles in processes associated with cancer development. Here, we review various MYB alterations reported in cancer along with the roles of MYB family proteins in tumor cell plasticity, therapy resistance, and other hallmarks of cancer. We also discuss studies that provide mechanistic insights into the oncogenic functions of MYB transcription factors to identify potential therapeutic vulnerabilities.
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Affiliation(s)
- Shashi Anand
- Department of Pathology, Frederick P. Whiddon College of Medicine, University of South Alabama, Mobile, AL, 36617, USA
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, 36604, USA
| | - Kunwar Somesh Vikramdeo
- Department of Pathology, Frederick P. Whiddon College of Medicine, University of South Alabama, Mobile, AL, 36617, USA
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, 36604, USA
| | - Sarabjeet Kour Sudan
- Department of Pathology, Frederick P. Whiddon College of Medicine, University of South Alabama, Mobile, AL, 36617, USA
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, 36604, USA
| | - Amod Sharma
- Department of Pathology, Frederick P. Whiddon College of Medicine, University of South Alabama, Mobile, AL, 36617, USA
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, 36604, USA
| | - Srijan Acharya
- Department of Pathology, Frederick P. Whiddon College of Medicine, University of South Alabama, Mobile, AL, 36617, USA
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, 36604, USA
| | - Mohammad Aslam Khan
- Department of Pathology, Frederick P. Whiddon College of Medicine, University of South Alabama, Mobile, AL, 36617, USA
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, 36604, USA
| | - Seema Singh
- Department of Pathology, Frederick P. Whiddon College of Medicine, University of South Alabama, Mobile, AL, 36617, USA
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, 36604, USA
- Department of Biochemistry and Molecular Biology, Frederick P. Whiddon College of Medicine, University of South Alabama, Mobile, AL, 36688, USA
| | - Ajay Pratap Singh
- Department of Pathology, Frederick P. Whiddon College of Medicine, University of South Alabama, Mobile, AL, 36617, USA.
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, 36604, USA.
- Department of Biochemistry and Molecular Biology, Frederick P. Whiddon College of Medicine, University of South Alabama, Mobile, AL, 36688, USA.
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Ho AL, Foster NR, Deraje Vasudeva S, Katabi N, Antonescu CR, Frenette GP, Pfister DG, Erlichman C, Schwartz GK. A phase 2 study of MK-2206 in patients with incurable adenoid cystic carcinoma (Alliance A091104). Cancer 2024; 130:702-712. [PMID: 37947157 PMCID: PMC10922149 DOI: 10.1002/cncr.35103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/21/2023] [Accepted: 10/09/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND Recurrent/metastatic adenoid cystic carcinoma (ACC) is a rare, incurable disease. MYB is a putative oncogenic driver in ACC that is often overexpressed through an MYB-NFIB rearrangement. The authors hypothesized that AKT inhibition with the allosteric inhibitor MK-2206 could decrease MYB expression and induce tumor regression in patients with incurable ACC (ClinicalTrials.gov identifier NCT01604772). METHODS Patients with progressive, incurable ACC were enrolled and received MK-2206 150 mg weekly; escalation to 200 mg was allowed. The primary end point was confirmed response. Secondary end points were progression-free survival, overall survival, and safety. An exploratory analysis evaluating the effect of MK-2206 on MYB expression was conducted in a subset of patients. RESULTS Sixteen patients were enrolled, and 14 were evaluable for efficacy. No confirmed responses were observed. Thirteen patients had stable disease, and one had disease progression as their best response. The median progression-free survival was 9.7 months (95% CI, 3.8-11.8 months), and the median overall survival was 18.0 months (95% CI, 11.8-29.9 months). Nine of 16 patients (56%) had at least one grade 3 treatment-related adverse event, and the most common were rash (38%), fatigue (19%), decreased lymphocyte count (13%), and hyperglycemia (13%). Twelve of 14 tumors (86%) had detectable MYB expression by immunohistochemistry, and seven of 14 tumors (50%) had an MYB-NFIB gene rearrangement. Serial biopsies revealed decreased MYB levels with MK-2206 in four of five patients. CONCLUSIONS MK-2206 failed to induce clinical responses in patients with incurable ACC. AKT inhibition may diminish MYB protein levels, although the effect was highly variable among patients. Novel approaches to target MYB in ACC are needed.
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Affiliation(s)
- Alan L Ho
- Memorial Sloan Kettering Cancer Center, New York, New York, USA
- Weill Cornell Medicine and New York Presbyterian Hospital, New York, New York, USA
| | - Nathan R Foster
- Alliance Statistics and Data Management Center, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Nora Katabi
- Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | | | - Gary P Frenette
- Levine Cancer Institute, Atrium Health, Charlotte, North Carolina, USA
| | - David G Pfister
- Memorial Sloan Kettering Cancer Center, New York, New York, USA
- Weill Cornell Medicine and New York Presbyterian Hospital, New York, New York, USA
| | | | - Gary K Schwartz
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio, USA
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Xu C, Xue X, Li Z, Chen M, Yang Y, Wang S, Shang M, Qiu L, Zhao X, Hu W. The Pp MYB75-PpDFR module reveals the difference between 'SR' and its bud variant 'RMHC' in peach red flesh. J Plant Res 2024; 137:241-254. [PMID: 38194204 DOI: 10.1007/s10265-023-01512-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 11/23/2023] [Indexed: 01/10/2024]
Abstract
'Red Meat Honey Crisp (RMHC)' has been widely cultivated by growers in recent years due to its early maturity, and red meat type characteristics. As a bud variant of 'Super Red (SR)' peach, red flesh is the most distinctive characteristic of 'Red Meat Honey Crisp (RMHC)'. However, the mechanism of red flesh formation in 'RMHC' remains unclear. In this study, 79 differentially produced metabolites were identified by metabolomics analysis. The anthocyanin content in 'RMHC' was significantly higher than that in 'SR' during the same period, such as cyanidin O-syringic acid and cyanidin 3-O-glucoside. Other flavonoids also increased during the formation of red flesh, including flavonols (6-hydroxykaempferol-7-O-glucoside, hyperin), flavanols (protocatechuic acid, (+)-gallocatechin), and flavonoids (chrysoeriol 5-O-hexoside, tricetin). In addition, transcriptomic analysis and RT-qPCR showed that the expression levels of the flavonoid synthesis pathway transcription factor MYB75 and some structural genes, such as PpDFR, PpCHS, PpC4H, and PpLDOX increased significantly in 'RMHC'. Subcellular localization analysis revealed that MYB75 was localized to the nucleus. Yeast single hybridization assays showed that MYB75 bound to the cis-acting element CCGTTG of the PpDFR promoter region. The MYB75-PpDFR regulatory network was identified to be a key pathway in the reddening of 'RMHC' flesh. Moreover, this is the first study to describe the cause for red meat reddening in 'RMHC' compared to 'SR' peaches using transcriptomics, metabolomics and molecular methods. Our study identified a key transcription factor involved in the regulation of the flavonoid synthetic pathway and contributes to peach breeding-related efforts as well as the identification of genes involved in color formation in other species.
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Affiliation(s)
- Chao Xu
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology, Jinan, Shandong, 250353, PR China
| | - Xiaomin Xue
- Pomology Institute of Shandong Province, Taian, Shandong, 271000, China
| | - Zhixing Li
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology, Jinan, Shandong, 250353, PR China
| | - Mingguang Chen
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology, Jinan, Shandong, 250353, PR China
| | - Yating Yang
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology, Jinan, Shandong, 250353, PR China
| | - Siyu Wang
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology, Jinan, Shandong, 250353, PR China
| | - Mingrui Shang
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology, Jinan, Shandong, 250353, PR China
| | - Lei Qiu
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology, Jinan, Shandong, 250353, PR China
| | - Xianyan Zhao
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology, Jinan, Shandong, 250353, PR China.
| | - Wenxiao Hu
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology, Jinan, Shandong, 250353, PR China.
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11
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Feinberg J, Da Cruz Paula A, da Silva EM, Pareja F, Patel J, Zhu Y, Selenica P, Leitao MM, Abu-Rustum NR, Reis-Filho JS, Joehlin-Price A, Weigelt B. Adenoid cystic carcinoma of the Bartholin's gland is underpinned by MYB- and MYBL1- rearrangements. Gynecol Oncol 2024; 185:58-67. [PMID: 38368814 DOI: 10.1016/j.ygyno.2024.02.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 02/09/2024] [Indexed: 02/20/2024]
Abstract
OBJECTIVE Adenoid cystic carcinoma (AdCC) of the Bartholin's gland (AdCC-BG) is a very rare gynecologic vulvar malignancy. AdCC-BGs are slow-growing but locally aggressive and are associated with high recurrence rates. Here we sought to characterize the molecular underpinning of AdCC-BGs. METHODS AdCC-BGs (n = 6) were subjected to a combination of RNA-sequencing, targeted DNA-sequencing, reverse-transcription PCR, fluorescence in situ hybridization (FISH) and MYB immunohistochemistry (IHC). Clinicopathologic variables, somatic mutations, copy number alterations and chimeric transcripts were assessed. RESULTS All six AdCC-BGs were biphasic, composed of ductal and myoepithelial cells. Akin to salivary gland and breast AdCCs, three AdCC-BGs had the MYB::NFIB fusion gene with varying breakpoints, all of which were associated with MYB overexpression by IHC. Two AdCC-BGs were underpinned by MYBL1 fusion genes with different gene partners, including MYBL1::RAD51B and MYBL1::EWSR1 gene fusions, and showed MYB protein expression. Although the final AdCC-BG studied had MYB protein overexpression, no gene fusion was identified. AdCC-BGs harbored few additional somatic genetic alterations, and only few mutations in cancer-related genes were identified, including GNAQ, GNAS, KDM6A, AKT1 and BCL2, none of which were recurrent. Two AdCC-BGs, both with a MYB::NFIB fusion gene, developed metastatic disease. CONCLUSIONS AdCC-BGs constitute a convergent phenotype, whereby activation of MYB or MYBL1 can be driven by the MYB::NFIB fusion gene or MYBL1 rearrangements. Our observations further support the notion that AdCCs, irrespective of organ site, constitute a genotypic-phenotypic correlation. Assessment of MYB or MYBL1 rearrangements may be used as an ancillary marker for the diagnosis of AdCC-BGs.
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Affiliation(s)
- Jacqueline Feinberg
- Gynecology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Arnaud Da Cruz Paula
- Gynecology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Edaise M da Silva
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Fresia Pareja
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Juber Patel
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Yingjie Zhu
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Pier Selenica
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Mario M Leitao
- Gynecology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Nadeem R Abu-Rustum
- Gynecology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jorge S Reis-Filho
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Amy Joehlin-Price
- Cleveland Clinic Pathology and Laboratory Medicine Institute, Cleveland, OH, USA
| | - Britta Weigelt
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
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12
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Xue L, Liu X, Wang W, Huang D, Ren C, Huang X, Yin X, Lin-Wang K, Allan AC, Chen K, Xu C. MYB transcription factors encoded by diversified tandem gene clusters cause varied Morella rubra fruit color. Plant Physiol 2024:kiae063. [PMID: 38319742 DOI: 10.1093/plphys/kiae063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/03/2024] [Accepted: 01/04/2024] [Indexed: 02/08/2024]
Abstract
Chinese bayberry (Morella rubra) is a fruit tree with a remarkable variation in fruit color, ranging from white to dark red as determined by anthocyanin content. In dark red 'Biqi' (BQ), red 'Dongkui' (DK), pink 'Fenhong' (FH), and white 'Shuijing' (SJ), we identified an anthocyanin-related MYB transcription factor-encoding gene cluster of four members, i.e., MrMYB1.1, MrMYB1.2, MrMYB1.3, and MrMYB2. Collinear analysis revealed that the MYB tandem cluster may have occurred in a highly conserved regions of many eudicot genomes. Two alleles of MrMYB1.1 were observed; MrMYB1.1-1 (MrMYB1.1n) was a full-length allele and homozygous in 'BQ', MrMYB1.1-2 (MrMYB1.1d) was a nonfunctional allele with a single base deletion and homozygous in 'SJ', and MrMYB1.1n/MrMYB1.1d were heterozygous in 'DK' and 'FH'. In these four cultivars, expression of MrMYB1.1, MrMYB1.2 and MrMYB2 was enhanced during ripening. Both alleles were equally expressed in MrMYB1.1n/MrMYB1.1d heterozygous cultivars as revealed by a cleaved amplified polymorphic sequence (CAPS) marker. Expression of MrMYB1.3 was restricted to some dark red cultivars only. Functional characterization revealed that MrMYB1.1n and MrMYB1.3 can induce anthocyanin accumulation while MrMYB1.1d, MrMYB1.2, and MrMYB2 cannot. DNA-protein interaction assays indicated that MrMYB1.1n and MrMYB1.3 can directly bind to and activate the promoters of anthocyanin-related genes via interaction with a MYC-like basic helix-loop-helix protein MrbHLH1. We concluded that the specific genotype of MrMYB1.1 alleles, as well as the exclusive expression of MrMYB1.3 in some dark red cultivars, contributes to fruit color variation. The study provides insights into the mechanisms for regulation of plant anthocyanin accumulation by MYB tandem clusters.
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Affiliation(s)
- Lei Xue
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou, China
| | - Xiaofen Liu
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou, China
| | - Wenli Wang
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou, China
| | - Dan Huang
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou, China
| | - Chuanhong Ren
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou, China
| | - Xiaorong Huang
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou, China
| | - Xueren Yin
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou, China
| | - Kui Lin-Wang
- New Zealand Institute for Plant & Food Research Limited, Auckland, New Zealand
| | - Andrew C Allan
- New Zealand Institute for Plant & Food Research Limited, Auckland, New Zealand
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Kunsong Chen
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou, China
| | - Changjie Xu
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou, China
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Wang H, Zhang Y, Feng X, Hong J, Aamir Manzoor M, Zhou X, Zhou Q, Cai Y. Transcription factor Pb MYB80 regulates lignification of stone cells and undergoes RING finger protein PbRHY1-mediated degradation in pear fruit. J Exp Bot 2024; 75:883-900. [PMID: 37944017 DOI: 10.1093/jxb/erad434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 11/06/2023] [Indexed: 11/12/2023]
Abstract
The Chinese white pear (Pyrus bretschneideri) fruit carries a high proportion of stone cells, adversely affecting fruit quality. Lignin is a main component of stone cells in pear fruit. In this study, we discovered that a pear MYB transcription factor, PbMYB80, binds to the promoters of key lignin biosynthesis genes and inhibits their expression. Stable overexpression of PbMYB80 in Arabidopsis showed that lignin deposition and secondary wall thickening were inhibited, and the expression of the lignin biosynthesis genes in transgenic Arabidopsis was decreased. Transient overexpression of PbMYB80 in pear fruit inhibited lignin metabolism and stone cell development, and the expression of some genes in the lignin metabolism pathway was reduced. In contrast, silencing PbMYB80 with VIGS increased the lignin and stone cell content in pear fruit, and increased expression of genes in the lignin metabolism pathway. By screening a pear fruit cDNA library in yeast, we found that PbMYB80 binds to a RING finger (PbRHY1) protein. We also showed that PbRHY1 exhibits E3 ubiquitin ligase activity and degrades ubiquitinated PbMYB80 in vivo and in vitro. This investigation contributes to a better understanding of the regulation of lignin biosynthesis in pear fruit, and provides a theoretical foundation for increasing pear fruit quality at the molecular level.
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Affiliation(s)
- Han Wang
- School of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Yingjie Zhang
- School of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Xiaofeng Feng
- School of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Jiayi Hong
- School of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Muhammad Aamir Manzoor
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Xinyue Zhou
- School of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Qifang Zhou
- School of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Yongping Cai
- School of Life Sciences, Anhui Agricultural University, Hefei, China
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14
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Cai O, Zhang H, Yang L, Wu H, Qin M, Yao W, Huang F, Li L, Lin S. Integrated Transcriptome and Metabolome Analyses Reveal Bamboo Culm Color Formation Mechanisms Involved in Anthocyanin Biosynthetic in Phyllostachys nigra. Int J Mol Sci 2024; 25:1738. [PMID: 38339012 PMCID: PMC10855043 DOI: 10.3390/ijms25031738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/27/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024] Open
Abstract
Phyllostachys nigra has green young culms (S1) and purple black mature culms (S4). Anthocyanins are the principal pigment responsible for color presentation in ornamental plants. We employ a multi-omics approach to investigate the regulatory mechanisms of anthocyanins in Ph. nigra. Firstly, we found that the pigments of the culm of Ph. nigra accumulated only in one to four layers of cells below the epidermis. The levels of total anthocyanins and total flavonoids gradually increased during the process of bamboo culm color formation. Metabolomics analysis indicated that the predominant pigment metabolites observed were petunidin 3-O-glucoside and malvidin O-hexoside, exhibiting a significant increase of up to 9.36-fold and 13.23-fold, respectively, during pigmentation of Ph. nigra culm. Transcriptomics sequencing has revealed that genes involved in flavonoid biosynthesis, phenylpropanoid biosynthesis, and starch and sucrose metabolism pathways were significantly enriched, leading to color formation. A total of 62 differentially expressed structural genes associated with anthocyanin synthesis were identified. Notably, PnANS2, PnUFGT2, PnCHI2, and PnCHS1 showed significant correlations with anthocyanin metabolites. Additionally, certain transcription factors such as PnMYB6 and PnMYB1 showed significant positive or negative correlations with anthocyanins. With the accumulation of sucrose, the expression of PnMYB6 is enhanced, which in turn triggers the expression of anthocyanin biosynthesis genes. Based on these findings, we propose that these key genes primarily regulate the anthocyanin synthesis pathway in the culm and contribute to the accumulation of anthocyanin, ultimately resulting in the purple-black coloration of Ph. nigra.
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Affiliation(s)
- Ou Cai
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China; (O.C.); (H.Z.); (L.Y.); (H.W.); (M.Q.); (W.Y.); (F.H.)
- Bamboo Research Institute, Nanjing Forestry University, Nanjing 210037, China
- College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China
| | - Hanjiao Zhang
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China; (O.C.); (H.Z.); (L.Y.); (H.W.); (M.Q.); (W.Y.); (F.H.)
- Bamboo Research Institute, Nanjing Forestry University, Nanjing 210037, China
- College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China
| | - Lu Yang
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China; (O.C.); (H.Z.); (L.Y.); (H.W.); (M.Q.); (W.Y.); (F.H.)
- Bamboo Research Institute, Nanjing Forestry University, Nanjing 210037, China
- College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China
| | - Hongyu Wu
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China; (O.C.); (H.Z.); (L.Y.); (H.W.); (M.Q.); (W.Y.); (F.H.)
- Bamboo Research Institute, Nanjing Forestry University, Nanjing 210037, China
- College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China
| | - Min Qin
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China; (O.C.); (H.Z.); (L.Y.); (H.W.); (M.Q.); (W.Y.); (F.H.)
- Bamboo Research Institute, Nanjing Forestry University, Nanjing 210037, China
- College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China
| | - Wenjing Yao
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China; (O.C.); (H.Z.); (L.Y.); (H.W.); (M.Q.); (W.Y.); (F.H.)
- Bamboo Research Institute, Nanjing Forestry University, Nanjing 210037, China
- College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China
| | - Feiyi Huang
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China; (O.C.); (H.Z.); (L.Y.); (H.W.); (M.Q.); (W.Y.); (F.H.)
- Bamboo Research Institute, Nanjing Forestry University, Nanjing 210037, China
- College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China
| | - Long Li
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China; (O.C.); (H.Z.); (L.Y.); (H.W.); (M.Q.); (W.Y.); (F.H.)
- Bamboo Research Institute, Nanjing Forestry University, Nanjing 210037, China
- College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China
| | - Shuyan Lin
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China; (O.C.); (H.Z.); (L.Y.); (H.W.); (M.Q.); (W.Y.); (F.H.)
- Bamboo Research Institute, Nanjing Forestry University, Nanjing 210037, China
- College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China
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15
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Hu Z, Zhang N, Qin Z, Li J, Yang N, Chen Y, Kong J, Luo W, Xiong A, Zhuang J. Differential Response of MYB Transcription Factor Gene Transcripts to Circadian Rhythm in Tea Plants ( Camellia sinensis). Int J Mol Sci 2024; 25:657. [PMID: 38203827 PMCID: PMC10780195 DOI: 10.3390/ijms25010657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 12/31/2023] [Accepted: 01/02/2024] [Indexed: 01/12/2024] Open
Abstract
The circadian clock refers to the formation of a certain rule in the long-term evolution of an organism, which is an invisible 'clock' in the body of an organism. As one of the largest TF families in higher plants, the MYB transcription factor is involved in plant growth and development. MYB is also inextricably correlated with the circadian rhythm. In this study, the transcriptome data of the tea plant 'Baiyeyihao' were measured at a photoperiod interval of 4 h (24 h). A total of 25,306 unigenes were obtained, including 14,615 unigenes that were annotated across 20 functional categories within the GO classification. Additionally, 10,443 single-gene clusters were annotated to 11 sublevels of metabolic pathways using KEGG. Based on the results of gene annotation and differential gene transcript analysis, 22 genes encoding MYB transcription factors were identified. The G10 group in the phylogenetic tree had 13 members, of which 5 were related to the circadian rhythm, accounting for 39%. The G1, G2, G8, G9, G15, G16, G18, G19, G20, G21 and G23 groups had no members associated with the circadian rhythm. Among the 22 differentially expressed MYB transcription factors, 3 members of LHY, RVE1 and RVE8 were core circadian rhythm genes belonging to the G10, G12 and G10 groups, respectively. Real-time fluorescence quantitative PCR was used to detect and validate the expression of the gene transcripts encoding MYB transcription factors associated with the circadian rhythm.
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Affiliation(s)
- Zhihang Hu
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (Z.H.); (Z.Q.); (J.L.); (N.Y.); (Y.C.); (J.K.); (W.L.)
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing 210095, China;
| | - Nan Zhang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing 210095, China;
| | - Zhiyuan Qin
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (Z.H.); (Z.Q.); (J.L.); (N.Y.); (Y.C.); (J.K.); (W.L.)
| | - Jinwen Li
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (Z.H.); (Z.Q.); (J.L.); (N.Y.); (Y.C.); (J.K.); (W.L.)
| | - Ni Yang
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (Z.H.); (Z.Q.); (J.L.); (N.Y.); (Y.C.); (J.K.); (W.L.)
| | - Yi Chen
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (Z.H.); (Z.Q.); (J.L.); (N.Y.); (Y.C.); (J.K.); (W.L.)
| | - Jieyu Kong
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (Z.H.); (Z.Q.); (J.L.); (N.Y.); (Y.C.); (J.K.); (W.L.)
| | - Wei Luo
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (Z.H.); (Z.Q.); (J.L.); (N.Y.); (Y.C.); (J.K.); (W.L.)
| | - Aisheng Xiong
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing 210095, China;
| | - Jing Zhuang
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (Z.H.); (Z.Q.); (J.L.); (N.Y.); (Y.C.); (J.K.); (W.L.)
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16
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Jiang W, Jiang Q, Shui Z, An P, Shi S, Liu T, Zhang H, Huang S, Jing B, Xiao E, Quan L, Liu J, Wang Z. Ha MYBA-HabHLH1 regulatory complex and HaMYBF fine-tune red flower coloration in the corolla of sunflower (Helianthus annuus L.). Plant Sci 2024; 338:111901. [PMID: 37865209 DOI: 10.1016/j.plantsci.2023.111901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 10/13/2023] [Accepted: 10/16/2023] [Indexed: 10/23/2023]
Abstract
Sunflowers are well-known ornamental plants, while sunflowers with red corolla are rare and the mechanisms underlying red coloration remain unclear. Here, a comprehensive analysis of metabolomics and transcriptomics on flavonoid pathway was performed to investigate the molecular mechanisms underlying the differential color formation between red sunflower Pc103 and two yellow sunflowers (Yr17 and Y35). Targeted metabolomic analysis revealed higher anthocyanin levels but lower flavonol content in Pc103 compared to the yellow cultivars. RNA-sequencing and phylogenetic analysis identified multiple genes involved in the flavonoid pathway, including series of structural genes and three MYB and bHLH genes. Specifically, HaMYBA and HabHLH1 were up-regulated in Pc103, whereas HaMYBF exhibited reduced expression. HaMYBA was found to interact with HabHLH1 in vivo and in vitro, while HaMYBF does not. Transient expression analysis further revealed that HabHLH1 and HaMYBA cooperatively regulate increased expression of dihydroflavonol 4-reductase (DFR), leading to anthocyanin accumulation. On the other hand, ectopic expression of HaMYBF independently modulates flavonol synthase (FLS) expression, but hindered anthocyanin production. Collectively, our findings suggest that the up-regulation of HaMYBA and HabHLH1, as well as the down-regulation of HaMYBF, contribute to the red coloration in Pc103. It offers a theoretical basis for improving sunflower color through genetic engineering.
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Affiliation(s)
- Wenhui Jiang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China; Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences (CAAS), Shenzhen 518120, China
| | - Qinqin Jiang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Zhijie Shui
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Peipei An
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Shandang Shi
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Tianxiang Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Hanbing Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Shuyi Huang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Bing Jing
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Enshi Xiao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Li Quan
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Jixia Liu
- Crop Research Institute, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, Ningxia 750002, China
| | - Zhonghua Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China.
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17
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Cheng L, Deng X, Le Y. MYB/LINC00092 regulatory axis promotes the progression of papillary thyroid carcinoma. Endokrynol Pol 2024; 75:27-34. [PMID: 38497387 DOI: 10.5603/ep.98120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 11/26/2023] [Accepted: 11/29/2023] [Indexed: 03/19/2024]
Abstract
INTRODUCTION Thyroid carcinoma is the most frequent malignancy in different endocrine-related tumours. In this study, we demonstrated a long non-coding RNA LINC00092-associated molecular mechanism in promoting the progression of papillary thyroid carcinoma (PTC). MATERIAL AND METHODS The expression of LINC00092 was analysed in the The Cancer Genome Atlas Thyroid Cancer (TCGA-THCA) patient cohorts and further determined by q-PCR. (3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide) (MTT) assay, and wound healing assay confirmed the function of LINC00092 in migration and proliferation. Q-ChIP validated the transcriptional target. Luciferase reporter assay validated the miRNA-mRNA target. RESULTS The analysis in patient cohorts and in PTC TPC-1 cells showed that the expression of LINC00092 was repressed in thyroid carcinoma. In addition, the expression of LINC00092 was negatively associated with the advanced thyroid TNM stages. LINC00092 repressed epithelial-mesenchymal transition (EMT), migration, and proliferation of TPC-1 cells. Interestingly, we identified that MYB, a well-studied tumour promoter, is a transcription factor of LINC00092, thereby the expression of LINC00092 was directly repressed by MYB. Furthermore, miR-4741 was also validated as a direct target of MYB and was induced by MYB. Notably, LINC00092 was repressed by miR-4741 through the direct 3'-untranslational region (3'-UTR) target. Therefore, MYB induced EMT of TPC-1 cells by repressing LINC00092 directly or indirectly via miR-4741. CONCLUSIONS Our study validated that LINC00092 is a tumour suppressor lncRNA in PTC. MYB directly or indirectly represses LINC00092, which contributes to the PTC progression. MYB, LINC00092, and miR-4741 form a coherent feed forward loop. The axis of MYB-LINC00092 promotes progression of PTC.
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Affiliation(s)
- Lian Cheng
- Department of General Surgery (Thyroid Surgery), Affiliated Hospital of Southwest Medical University, Southwest Medical University, Luzhou, China
- Cardiovascular and Metabolic Diseases Key Laboratory of Luzhou, Luzhou, China
| | - Xian Deng
- Department of General Surgery (Thyroid Surgery), Affiliated Hospital of Southwest Medical University, Southwest Medical University, Luzhou, China.
- Cardiovascular and Metabolic Diseases Key Laboratory of Luzhou, Luzhou, China.
| | - Yuan Le
- Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Southwest Medical University, Luzhou, China
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18
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Zhao Y, Chen Y, Gao M, Wu L, Wang Y. Lc MYB106 suppresses monoterpene biosynthesis by negatively regulating LcTPS32 expression in Litsea cubeba. Tree Physiol 2023; 43:2150-2161. [PMID: 37682081 DOI: 10.1093/treephys/tpad111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 05/15/2023] [Accepted: 09/05/2023] [Indexed: 09/09/2023]
Abstract
Litsea cubeba, the core species of the Lauraceae family, is valuable for the production of essential oils due to its high concentration of monoterpenes (90%). The key monoterpene synthase and metabolic regulatory network of monoterpene biosynthesis have provided new insights for improving essential oil content. However, there are few studies on the regulation mechanism of monoterpenes in L. cubeba. In this study, we investigated LcTPS32, a member of the TPS-b subfamily, and identified its function as an enzyme for the synthesis of monoterpenes, including geraniol, α-pinene, β-pinene, β-myrcene, linalool and eucalyptol. The quantitative real-time PCR analysis showed that LcTPS32 was highly expressed in the fruits of L. cubeba and contributed to the characteristic flavor of its essential oil. Overexpression of LcTPS32 resulted in a significant increase in the production of monoterpenes in L. cubeba by activating both the MVA and MEP pathways. Additionally, the study revealed that LcMYB106 played a negative regulatory role in monoterpenes biosynthesis by directly binding to the promoter of LcTPS32. Our study indicates that LcMYB106 could serve as a crucial target for metabolic engineering endeavors, aiming at enhancing the monoterpene biosynthesis in L. cubeba.
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Affiliation(s)
- Yunxiao Zhao
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Xiangshan Rd, Beijing 100091, China
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Daqiao Rd, Hangzhou, Zhejiang 311400, China
| | - Yicun Chen
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Xiangshan Rd, Beijing 100091, China
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Daqiao Rd, Hangzhou, Zhejiang 311400, China
| | - Ming Gao
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Xiangshan Rd, Beijing 100091, China
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Daqiao Rd, Hangzhou, Zhejiang 311400, China
| | - Liwen Wu
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Xiangshan Rd, Beijing 100091, China
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Daqiao Rd, Hangzhou, Zhejiang 311400, China
| | - Yangdong Wang
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Xiangshan Rd, Beijing 100091, China
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Daqiao Rd, Hangzhou, Zhejiang 311400, China
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19
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Zepeda B, Marcelis LFM, Kaiser E, Verdonk JC. Petunia as a model for MYB transcription factor action under salt stress. Front Plant Sci 2023; 14:1286547. [PMID: 38155855 PMCID: PMC10753185 DOI: 10.3389/fpls.2023.1286547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 11/20/2023] [Indexed: 12/30/2023]
Abstract
Salinity is a current and growing problem, affecting crops worldwide by reducing yields and product quality. Plants have different mechanisms to adapt to salinity; some crops are highly studied, and their salinity tolerance mechanisms are widely known. However, there are other crops with commercial importance that still need characterization of their molecular mechanisms. Usually, transcription factors are in charge of the regulation of complex processes such as the response to salinity. MYB-TFs are a family of transcription factors that regulate various processes in plant development, and both central and specialized metabolism. MYB-TFs have been studied extensively as mediators of specialized metabolism, and some are master regulators. The influence of MYB-TFs on highly orchestrated mechanisms, such as salinity tolerance, is an attractive research target. The versatility of petunia as a model species has allowed for advances to be made in multiple fields: metabolomic pathways, quality traits, stress resistance, and signal transduction. It has the potential to be the link between horticultural crops and lab models, making it useful in translating discoveries related to the MYB-TF pathways into other crops. We present a phylogenetic tree made with Petunia axillaris and Petunia inflata R2R3-MYB subfamily sequences, which could be used to find functional conservation between different species. This work could set the foundations to improve salinity resistance in other commercial crops in later studies.
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Affiliation(s)
| | | | | | - Julian C. Verdonk
- Horticulture and Product Physiology, Department of Plant Sciences, Wageningen University & Research, Wageningen, Netherlands
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20
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Vibert R, Cyrta J, Girard E, Vacher S, Dupain C, Antonio S, Wong J, Baulande S, De Sousa JMF, Vincent-Salomon A, Masliah-Planchon J, Girard N, Le Tourneau C, Kamal M, Bièche I. Molecular characterisation of tumours of the lacrimal apparatus. Histopathology 2023; 83:925-935. [PMID: 37706251 DOI: 10.1111/his.15040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 08/02/2023] [Accepted: 08/19/2023] [Indexed: 09/15/2023]
Abstract
AIMS Malignant tumours of the lacrimal apparatus are rare and frequently show a poor prognosis, with no clear therapeutic standards. Characterisation of the genetic landscape of these rare tumours is sparse, and therefore therapeutics generally follow those of their common salivary gland counterparts. To further clarify the pathophysiology and discover potential therapeutic targets, we investigated the genetic landscape of eight tumours of the lacrimal apparatus. METHODS AND RESULTS DNA and RNA sequencing were performed to identify genetic mutations and gene fusions. Immunohistochemistry, fluorescence in-situ hybridisation and reverse transcription-polymerase chain reaction followed by Sanger sequencing were performed to confirm the identified molecular alterations. Genetic alterations were detected in six tumours. Among five adenoid cystic carcinomas (ACC), four had confirmed alterations of MYB or MYBL1 genes, including a MYB::NFIB fusion, a MYBL1::NFIB fusion, a MYB amplification and a novel NFIB::THSD7B fusion. Mutations in genes encoding epigenetic modifiers, as well as NOTCH1, FGFR2 and ATM mutations, were also identified in ACCs. A carcinoma ex pleomorphic adenoma showed TP53 and CIC mutations and an amplification of ERBB2. A transitional cell carcinoma was associated with HPV16 infection. No genetic alteration was found for one adenocarcinoma, not otherwise specified. CONCLUSIONS Our study highlights the variety of molecular alterations associated with lacrimal system tumours and emphasises the importance of molecular testing in these tumours, which can reveal potentially targetable mutations. Our results also reinforce the hypothesis of a common physiopathology of all ACCs, regardless of their primary location.
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Affiliation(s)
- Roseline Vibert
- Pharmacogenomics Unit, Department of Genetics, Institut Curie, PSL Research University, Paris, France
| | - Joanna Cyrta
- Department of Pathology, Institut Curie, PSL Research University, Paris, France
| | - Elodie Girard
- Bioinformatics and Computational Systems Biology of Cancer, PSL Research University, Mines Paris Tech, INSERM U900, Paris, France
| | - Sophie Vacher
- Pharmacogenomics Unit, Department of Genetics, Institut Curie, PSL Research University, Paris, France
| | - Célia Dupain
- Department of Drug Development and Innovation (D3i), Institut Curie, Paris, France
| | - Samantha Antonio
- Pharmacogenomics Unit, Department of Genetics, Institut Curie, PSL Research University, Paris, France
| | - Jennifer Wong
- Pharmacogenomics Unit, Department of Genetics, Institut Curie, PSL Research University, Paris, France
| | - Sylvain Baulande
- Institut Curie Genomics of Excellence (ICGex) NGS Platform, Institut Curie, Paris, France
| | | | | | - Julien Masliah-Planchon
- Pharmacogenomics Unit, Department of Genetics, Institut Curie, PSL Research University, Paris, France
| | - Nicolas Girard
- Thorax Institute Curie Montsouris, Institut Curie, Paris, France
- UVSQ, Paris Saclay University, Versailles, France
| | | | - Maud Kamal
- Department of Drug Development and Innovation (D3i), Institut Curie, Paris, France
| | - Ivan Bièche
- Pharmacogenomics Unit, Department of Genetics, Institut Curie, PSL Research University, Paris, France
- Faculty of Pharmaceutical and Biological Sciences, INSERM U1016, Université de Paris Cité, Paris, France
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21
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Naito T, Noji R, Kugimoto T, Kuroshima T, Tomioka H, Fujiwara S, Suenaga M, Harada H, Kano Y. The Efficacy of Immunotherapy and Clinical Utility of Comprehensive Genomic Profiling in Adenoid Cystic Carcinoma of Head and Neck. Medicina (Kaunas) 2023; 59:2111. [PMID: 38138214 PMCID: PMC10745089 DOI: 10.3390/medicina59122111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 11/24/2023] [Accepted: 11/29/2023] [Indexed: 12/24/2023]
Abstract
Background and Objectives: Adenoid cystic carcinoma (ACC) of the head and neck is generally slow-growing but has a high potential for local recurrence and metastasis to distant organs. There is currently no standard pharmacological treatment for recurrent/metastatic (R/M) ACC, and there are cases in which immune checkpoint inhibitors (ICIs) are administered for ACC according to head and neck squamous cell carcinoma (HNSCC). However, the efficacy of ICIs for ACC remains unclear, and the predictive biomarkers need to be elucidated. Materials and Methods: The Center for Cancer Genomics and Advanced Therapeutics (C-CAT) database enabled the retrospective but nationwide analysis of 263 cases of ACC of the head and neck. Then, we examined and reported four cases of ACC that received ICIs and comprehensive genomic profiling (CGP) in our institution. Results: The C-CAT database revealed that 59 cases out of 263 received ICIs, and the best response was 8% of objective response rate (ORR) and 53% of disease control rate (DCR) (complete response, CR 3%, partial response, PR 5%, stable disease, SD 44%, progressive disease, PD 19%, not evaluated, NE 29%). The tumor mutational burden (TMB) in ACC was lower overall compared to HNSCC and could not be useful in predicting the efficacy of ICIs. Some cases with MYB structural variants showed the response to ICIs in the C-CAT database. A patient with MYB fusion/rearrangement variants in our institution showed long-term stable disease. Conclusions: ICI therapy is a potential treatment option, and the MYB structural variant might be a candidate for predictive biomarkers for immunotherapy in patients with R/M ACC.
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Affiliation(s)
- Takahiro Naito
- Department of Clinical Oncology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-Ku, Tokyo 113-8510, Japan
- Department of Oral and Maxillofacial Surgical Oncology, Division of Health Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-Ku, Tokyo 113-8510, Japan
| | - Rika Noji
- Department of Oral and Maxillofacial Surgical Oncology, Division of Health Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-Ku, Tokyo 113-8510, Japan
| | - Takuma Kugimoto
- Department of Oral and Maxillofacial Surgical Oncology, Division of Health Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-Ku, Tokyo 113-8510, Japan
| | - Takeshi Kuroshima
- Department of Oral and Maxillofacial Surgical Oncology, Division of Health Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-Ku, Tokyo 113-8510, Japan
| | - Hirofumi Tomioka
- Department of Oral and Maxillofacial Surgical Oncology, Division of Health Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-Ku, Tokyo 113-8510, Japan
| | - Shun Fujiwara
- Department of Clinical Oncology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-Ku, Tokyo 113-8510, Japan
| | - Mitsukuni Suenaga
- Department of Clinical Oncology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-Ku, Tokyo 113-8510, Japan
| | - Hiroyuki Harada
- Department of Oral and Maxillofacial Surgical Oncology, Division of Health Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-Ku, Tokyo 113-8510, Japan
| | - Yoshihito Kano
- Department of Clinical Oncology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-Ku, Tokyo 113-8510, Japan
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22
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Liu B, Wang T, Liu L, Xiao D, Yang Y, Yuan L, Zhang A, Xu K, Liu S, Liu K, Chen L. MYB6/bHLH13-AbSUS2 involved in sugar metabolism regulates root hair initiation of Abies beshanzuensis. New Phytol 2023; 240:2386-2403. [PMID: 37817383 DOI: 10.1111/nph.19301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 09/16/2023] [Indexed: 10/12/2023]
Abstract
Root hair is regarded as a pivotal complementary survival tactic for mycorrhizal plant like Abies beshanzuensis when symbiosis is disrupted. Relatively little is known about the mechanism underlying root hair morphogenesis in plant species that are strongly dependent on mycorrhizal symbiosis. Many of these species are endangered, and this knowledge is critical for ensuring their survival. Here, a MYB6/bHLH13-sucrose synthase 2 (AbSUS2) module was newly identified and characterized in A. beshanzuensis using bioinformatics, histochemistry, molecular biology, and transgenesis. Functional, expression pattern, and localization analysis showed that AbSUS2 participated in sucrose synthesis and was involved in root hair initiation in A. beshanzuensis. Additionally, the major enzymatic product of AbSUS2 was found to suppress root hair initiation in vitro. Our data further showed that a complex involving the transcription factors AbMYB6 and AbbHLH13 directly interacted with the promoter of AbSUS2 and strengthened its expression, thereby inhibiting root hair initiation in response to exogenous sucrose. Our findings offer novel insights into how root hair morphogenesis is regulated in mycorrhizal plants and also provide a new strategy for the preservation of endangered mycorrhizal plant species.
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Affiliation(s)
- Bin Liu
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Tingjin Wang
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Lingjuan Liu
- Longquan Preserve Center of Qianjiangyuan-Baishanzu National Park, Longquan, Zhejiang, 323714, China
| | - Duohong Xiao
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Yang Yang
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Lu Yuan
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Aijun Zhang
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Kexin Xu
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Shenglong Liu
- Longquan Preserve Center of Qianjiangyuan-Baishanzu National Park, Longquan, Zhejiang, 323714, China
| | - Ke Liu
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Liping Chen
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 310058, China
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23
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Shamir ER, Bean GR, Schwartz CJ, Vohra P, Wang A, Allard GM, Wolsky RJ, Garcia JJ, Chen YY, Krings G. Solid-Basaloid Adenoid Cystic Carcinoma of the Breast: An Aggressive Subtype Enriched for Notch Pathway and Chromatin Modifier Mutations With MYB Overexpression. Mod Pathol 2023; 36:100324. [PMID: 37660928 DOI: 10.1016/j.modpat.2023.100324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/14/2023] [Accepted: 08/29/2023] [Indexed: 09/05/2023]
Abstract
Adenoid cystic carcinoma (AdCC) is a rare triple-negative breast cancer analogous to its extramammary counterparts. Diagnosis of the more aggressive solid-basaloid variant of AdCC (SB-AdCC) can be challenging due to poorly defined histopathologic and molecular features. We characterized 22 invasive and in situ basaloid carcinomas by morphology, immunohistochemistry, genetics, and MYB status using multiple platforms and assessed clinical behavior and neoadjuvant chemotherapy responses. After consensus review, 16/22 cases were classified as SB-AdCC. All SB-AdCC had predominantly solid growth and at least focal myxohyaline stroma and were immune-poor. Eosinophilic squamoid cells (69%, 11/16) and basement membrane-like secretions (69%, 11/16) were common, and intercalated ducts (31%, 5/16) were less frequent. SB-AdCC typically expressed SOX10 (100%, 16/16) and luminal markers (100%, 16/16 CK7; 88%, 14/16 CD117; 93%, 13/14 CAM5.2). SMA (40%, 6/15) expression was less common, and SMM (27%, 3/11), GATA3 (20%, 3/15), and p63 (25%, 4/16) were mostly negative. MYB protein and/or MYB RNA overexpression was universal in evaluable cases (13/13), with RNA in situ hybridization (10/10) more reliable than immunohistochemistry (10/11, plus 4 excisions inconclusive). Fluorescence in situ hybridization and/or next-generation sequencing identified MYB rearrangements (20%, 3/15) and amplifications/copy gains (60%, 9/15) but no MYB::NFIB fusions. SB-AdCC often had aberrations in Notch pathway (60%, including 40% NOTCH1 and 20% NOTCH2) and/or chromatin modifier (60%, including 33% CREBBP) genes, with relatively infrequent TP53 mutations (27%). Unclassified invasive basaloid carcinomas lacking described histologic features of SB-AdCC (n = 4) and basaloid ductal carcinoma in situ (n = 2) showed similar immunoprofiles and genetics as SB-AdCC, including Notch aberrations and MYB overexpression with MYB rearrangements/amplifications. Overall, nodal (22%) and distant (33%) metastases were common, and 23% of patients died of disease (mean follow-up, 35 months; n = 22). Responses were poor in all 7 neoadjuvant chemotherapy-treated patients, without any achieving pathologic complete response. The data highlight the histopathologic spectrum of basaloid carcinomas including SB-AdCC and reveal shared genetics and MYB activation, which can be diagnostically useful. Aggressive behavior and poor treatment responses emphasize a need for additional treatment approaches.
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Affiliation(s)
- Eliah R Shamir
- Department of Pathology, University of California San Francisco, San Francisco, California; Department of Pathology, Genentech, Inc, South San Francisco, California
| | - Gregory R Bean
- Department of Pathology, Stanford University School of Medicine, Stanford, California
| | - Christopher J Schwartz
- Department of Pathology, University of California San Francisco, San Francisco, California
| | - Poonam Vohra
- Department of Pathology, University of California San Francisco, San Francisco, California; Department of Pathology, Zuckerberg San Francisco General Hospital, San Francisco, California
| | - Aihui Wang
- Department of Pathology, Stanford University School of Medicine, Stanford, California
| | - Grace M Allard
- Department of Pathology, Stanford University School of Medicine, Stanford, California
| | - Rebecca J Wolsky
- Department of Pathology, Zuckerberg San Francisco General Hospital, San Francisco, California; Department of Pathology, University of Colorado, Aurora, Colorado
| | - Joaquin J Garcia
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - Yunn-Yi Chen
- Department of Pathology, University of California San Francisco, San Francisco, California
| | - Gregor Krings
- Department of Pathology, University of California San Francisco, San Francisco, California.
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24
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Wang Y, Liu Y, Zhang L, Tang L, Xu S, Wang Z, Zhang Y, Lin Y, Wang Y, Li M, Zhang Y, Luo Y, Chen Q, Tang H. A Novel R2R3- MYB Transcription Factor FaMYB10-like Promotes Light-Induced Anthocyanin Accumulation in Cultivated Strawberry. Int J Mol Sci 2023; 24:16561. [PMID: 38068883 PMCID: PMC10706590 DOI: 10.3390/ijms242316561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/16/2023] [Accepted: 11/19/2023] [Indexed: 12/18/2023] Open
Abstract
Anthocyanins widely accumulate in the vegetative and reproductive tissues of strawberries and play an important role in stress resistance and fruit quality. Compared with other fruits, little is known about the molecular mechanisms regulating anthocyanin accumulation in strawberry vegetative tissues. In this study, we revealed an R2R3-MYB transcription factor, FaMYB10-like (FaMYB10L), which positively regulated anthocyanin accumulation and was induced by light in the petiole and runner of cultivated strawberry. FaMYB10L is a homologue of FveMYB10-like and a nuclear localization protein. Transient overexpression of FaMYB10L in a white fruit strawberry variety (myb10 mutant) rescued fruit pigmentation, and further qR-PCR analysis revealed that FaMYB10L upregulated the expression levels of anthocyanin biosynthesis-related genes and transport gene. A dual luciferase assay showed that FaMYB10L could activate the anthocyanin transport gene FaRAP. Anthocyanin accumulation was observed in FaMYB10L-overexpressing strawberry calli, and light treatment enhanced anthocyanin accumulation. Furthermore, transcriptomic profiling indicated that the DEGs involved in the flavonoid biosynthesis pathway and induced by light were enriched in FaMYB10L-overexpressing strawberry calli. In addition, yeast two-hybrid assays and luciferase complementation assays indicated that FaMYB10L could interact with bHLH3. These findings enriched the light-involved regulatory network of anthocyanin metabolism in cultivated strawberries.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Haoru Tang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (Y.W.); (Y.L.); (L.Z.); (L.T.); (S.X.); (Z.W.); (Y.Z.); (Y.L.); (Y.W.); (M.L.); (Y.Z.); (Y.L.); (Q.C.)
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25
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Li X, Lu J, Zhu X, Dong Y, Liu Y, Chu S, Xiong E, Zheng X, Jiao Y. At MYBS1 negatively regulates heat tolerance by directly repressing the expression of MAX1 required for strigolactone biosynthesis in Arabidopsis. Plant Commun 2023; 4:100675. [PMID: 37608548 PMCID: PMC10721535 DOI: 10.1016/j.xplc.2023.100675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 07/20/2023] [Accepted: 08/18/2023] [Indexed: 08/24/2023]
Abstract
Heat stress caused by global warming requires the development of thermotolerant crops to sustain yield. It is necessary to understand the molecular mechanisms that underlie heat tolerance in plants. Strigolactones (SLs) are a class of carotenoid-derived phytohormones that regulate plant development and responses to abiotic or biotic stresses. Although SL biosynthesis and signaling processes are well established, genes that directly regulate SL biosynthesis have rarely been reported. Here, we report that the MYB-like transcription factor AtMYBS1/AtMYBL, whose gene expression is repressed by heat stress, functions as a negative regulator of heat tolerance by directly inhibiting SL biosynthesis in Arabidopsis. Overexpression of AtMYBS1 led to heat hypersensitivity, whereas atmybs1 mutants displayed increased heat tolerance. Expression of MAX1, a critical enzyme in SL biosynthesis, was induced by heat stress and downregulated in AtMYBS1-overexpression (OE) plants but upregulated in atmybs1 mutants. Overexpression of MAX1 in the AtMYBS1-OE background reversed the heat hypersensitivity of AtMYBS1-OE plants. Loss of MAX1 function in the atmyb1 background reversed the heat-tolerant phenotypes of atmyb1 mutants. Yeast one-hybrid assays, chromatin immunoprecipitation‒qPCR, and transgenic analyses demonstrated that AtMYBS1 directly represses MAX1 expression through the MYB binding site in the MAX1 promoter in vivo. The atmybs1d14 double mutant, like d14 mutants, exhibited hypersensitivity to heat stress, indicating the necessary role of SL signaling in AtMYBS1-regulated heat tolerance. Our findings provide new insights into the regulatory network of SL biosynthesis, facilitating the breeding of heat-tolerant crops to improve crop production in a warming world.
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Affiliation(s)
- Xiang Li
- Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China; Key Laboratory of Biology and Genetic Improvement of Oil Crops, the Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Wuhan 430062, China; Xinxiang Academy of Agricultural Sciences, Xinxiang 453000, China
| | - Jianhua Lu
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, the Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Xuling Zhu
- Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China
| | - Yanqi Dong
- Xinxiang Academy of Agricultural Sciences, Xinxiang 453000, China
| | - Yanli Liu
- Xinxiang Academy of Agricultural Sciences, Xinxiang 453000, China
| | - Shanshan Chu
- Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China
| | - Erhui Xiong
- Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China.
| | - Xu Zheng
- Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China.
| | - Yongqing Jiao
- Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China; Key Laboratory of Biology and Genetic Improvement of Oil Crops, the Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
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Zheng J, Yang X, Ye J, Su D, Wang L, Liao Y, Zhang W, Wang Q, Chen Q, Xu F. Multiomics analysis provides new insights into the regulatory mechanism of carotenoid biosynthesis in yellow peach peel. Mol Hortic 2023; 3:23. [PMID: 37919829 PMCID: PMC10623742 DOI: 10.1186/s43897-023-00070-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 10/11/2023] [Indexed: 11/04/2023]
Abstract
Carotenoids, as natural tetraterpenes, play a pivotal role in the yellow coloration of peaches and contribute to human dietary health. Despite a relatively clear understanding of the carotenoid biosynthesis pathway, the regulatory mechanism of miRNAs involved in carotenoid synthesis in yellow peaches remain poorly elucidated. This study investigated a total of 14 carotenoids and 40 xanthophyll lipids, including six differentially accumulated carotenoids: violaxanthin, neoxanthin, lutein, zeaxanthin, cryptoxanthin, and (E/Z)-phytoene. An integrated analysis of RNA-seq, miRNA-seq and degradome sequencing revealed that miRNAs could modulate structural genes such as PSY2, CRTISO, ZDS1, CHYB, VDE, ZEP, NCED1, NCED3 and the transcription factors NAC, ARF, WRKY, MYB, and bZIP, thereby participating in carotenoid biosynthesis and metabolism. The authenticity of miRNAs and target gene was corroborated through quantitative real-time PCR. Moreover, through weighted gene coexpression network analysis and a phylogenetic evolutionary study, coexpressed genes and MYB transcription factors potentially implicated in carotenoid synthesis were identified. The results of transient expression experiments indicated that mdm-miR858 inhibited the expression of PpMYB9 through targeted cleavage. Building upon these findings, a regulatory network governing miRNA-mediated carotenoid synthesis was proposed. In summary, this study comprehensively identified miRNAs engaged in carotenoid biosynthesis and their putative target genes, thus enhancing the understanding of carotenoid accumulation and regulatory mechanism in yellow peach peel and expanding the gene regulatory network of carotenoid synthesis.
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Affiliation(s)
- Jiarui Zheng
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, China
| | - Xiaoyan Yang
- School of Biology and Agriculture, Shaoguan University, Shaoguan, 512005, China
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan, 512005, China
| | - Jiabao Ye
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, China
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan, 512005, China
| | - Dongxue Su
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, China
| | - Lina Wang
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, China
| | - Yongling Liao
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, China
| | - Weiwei Zhang
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, China
| | - Qijian Wang
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, China
| | - Qiangwen Chen
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, China
| | - Feng Xu
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, China.
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Persson M, Andersson MK, Sahlin PE, Mitani Y, Brandwein-Weber MS, Frierson HF, Moskaluk C, Fonseca I, Ferrarotto R, Boecker W, Loening T, El-Naggar AK, Stenman G. Comprehensive molecular characterization of adenoid cystic carcinoma reveals tumor suppressors as novel drivers and prognostic biomarkers. J Pathol 2023; 261:256-268. [PMID: 37565350 DOI: 10.1002/path.6172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 06/19/2023] [Accepted: 06/28/2023] [Indexed: 08/12/2023]
Abstract
Adenoid cystic carcinoma (ACC) is a MYB-driven head and neck malignancy with high rates of local recurrence and distant metastasis and poor long-term survival. New effective targeted therapies and clinically useful biomarkers for patient stratification are needed to improve ACC patient survival. Here, we present an integrated copy number and transcriptomic analysis of ACC to identify novel driver genes and prognostic biomarkers. A total of 598 ACCs were studied. Clinical follow-up was available from 366 patients, the largest cohort analyzed to date. Copy number losses of 1p36 (70/492; 14%) and of the tumor suppressor gene PARK2 (6q26) (85/343; 25%) were prognostic biomarkers; patients with concurrent losses (n = 20) had significantly shorter overall survival (OS) than those with one or no deletions (p < 0.0001). Deletion of 1p36 independently predicted short OS in multivariate analysis (p = 0.02). Two pro-apoptotic genes, TP73 and KIF1B, were identified as putative 1p36 tumor suppressor genes whose reduced expression was associated with poor survival and increased resistance to apoptosis. PARK2 expression was markedly reduced in tumors with 6q deletions, and PARK2 knockdown increased spherogenesis and decreased apoptosis, indicating that PARK2 is a tumor suppressor in ACC. Moreover, analysis of the global gene expression pattern in 30 ACCs revealed a transcriptomic signature associated with short OS, multiple copy number alterations including 1p36 deletions, and reduced expression of TP73. Taken together, the results indicate that TP73 and PARK2 are novel putative tumor suppressor genes and potential prognostic biomarkers in ACC. Our studies provide new important insights into the pathogenesis of ACC. The results have important implications for biomarker-driven stratification of patients in clinical trials. © 2023 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Marta Persson
- Sahlgrenska Center for Cancer Research, Department of Pathology, University of Gothenburg, Gothenburg, Sweden
| | - Mattias K Andersson
- Sahlgrenska Center for Cancer Research, Department of Pathology, University of Gothenburg, Gothenburg, Sweden
| | - Per-Erik Sahlin
- Department of Plastic Surgery, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Yoshitsugu Mitani
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | - Henry F Frierson
- Department of Pathology, University of Virginia Health System, Charlottesville, VA, USA
| | - Christopher Moskaluk
- Department of Pathology, University of Virginia Health System, Charlottesville, VA, USA
| | - Isabel Fonseca
- Serviço de Anatomia Patológica, Instituto Português de Oncologia de Francisco Gentil - Lisboa and Instituto de Anatomia Patológica, Faculdade de Medicina de Lisboa, Lisbon, Portugal
| | - Renata Ferrarotto
- Department of Thoracic Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Werner Boecker
- Gerhard Domagk Institute of Pathology, University of Muenster, Muenster, Germany
- Gerhard-Seifert Reference Centre, Hamburg, Germany
| | | | - Adel K El-Naggar
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Göran Stenman
- Sahlgrenska Center for Cancer Research, Department of Pathology, University of Gothenburg, Gothenburg, Sweden
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Xia RH, Zhang CY, Wang LZ, Hu YH, Sun JJ, Tian Z, Li J. Adenoid cystic carcinoma in children and young adults: A clinicopathological study of 12 cases. Oral Dis 2023; 29:3289-3297. [PMID: 35818778 DOI: 10.1111/odi.14311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 05/19/2022] [Accepted: 07/08/2022] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To investigate the clinicopathological characteristics, immunoprofile, and molecular alterations of adenoid cystic carcinoma (ACC) in children and young adults. MATERIALS AND METHODS Twelve cases of ACC were included. MYB, MYBL1, Ki-67, type IV Collagen, Laminin, and LAMB1 expression were detected by immunohistochemistry. MYB and MYBL1 rearrangements were detected by fluorescence in situ hybridization. RESULTS Among 12 patients, four were female and eight were male. Seven cases (58.3%) located in major salivary glands and eight cases (66.7%) were classified as Grade I. Ten tumors (83.3%) had collagenous and hyalinized stroma. MYB was positive in 83.3% cases, and the average Ki-67 labeling index (LI) was 8.3%. LAMB1, type IV Collagen, and Laminin were positive in 91.7%, 66.7%, and 58.3% cases, respectively. Besides, three out of eight tumors had MYB rearrangement. Cases without MYB rearrangement were negative for MYBL1 expression and MYBL1 rearrangement. The average follow-up time was 91.8 months. Four patients had recurrent diseases. CONCLUSIONS ACC in children and young adults was seen more frequently in males and major salivary glands. Most cases had ECM and hyaline stroma. Grade III tumors, higher Ki-67 LI, negative expression of type IV Collagen, and Laminin showed a tendency of higher recurrence rate.
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Affiliation(s)
- Rong-Hui Xia
- Department of Oral Pathology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
- Shanghai Institute of Precision Medicine, Shanghai, China
| | - Chun-Ye Zhang
- Department of Oral Pathology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Li-Zhen Wang
- Department of Oral Pathology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Yu-Hua Hu
- Department of Oral Pathology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Jing-Jing Sun
- Department of Oral Pathology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Zhen Tian
- Department of Oral Pathology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Jiang Li
- Department of Oral Pathology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
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Ai Y, Zheng QD, Wang MJ, Xiong LW, Li P, Guo LT, Wang MY, Peng DH, Lan SR, Liu ZJ. Molecular mechanism of different flower color formation of Cymbidium ensifolium. Plant Mol Biol 2023; 113:193-204. [PMID: 37878187 DOI: 10.1007/s11103-023-01382-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 09/26/2023] [Indexed: 10/26/2023]
Abstract
Cymbidium ensifolium is one of the national orchids in China, which has high ornamental value with changeable flower colors. To understand the formation mechanism of different flower colors of C. ensifolium, this research conducted transcriptome and metabolome analyses on four different colored sepals of C. ensifolium. Metabolome analysis detected 204 flavonoid metabolites, including 17 polyphenols, 27 anthocyanins, 75 flavones, 34 flavonols, 25 flavonoids, 18 flavanones, and 8 isoflavones. Among them, purple-red and red sepals contain a lot of anthocyanins, including cyanidin, pelargonin, and paeoniflorin, while yellow-green and white sepals have less anthocyanins detected, and their metabolites are mainly flavonols, flavanones and flavonoids. Transcriptome sequencing analysis showed that the expression levels of the anthocyanin biosynthetic enzyme genes in red and purple-red sepals were significantly higher than those in white and yellow-green sepals of C. ensifolium. The experimental results showed that CeF3'H2, CeDFR, CeANS, CeF3H and CeUFGT1 may be the key genes involved in anthocyanin production in C. ensifolium sepals, and CeMYB104 has been proved to play an important role in the flower color formation of C. ensifolium. The results of transformation showed that the CeMYB104 is involved in the synthesis of anthocyanins and can form a purple-red color in the white perianth of Phalaenopsis. These findings provide a theoretical reference to understand the formation mechanism of flower color in C. ensifolium.
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Affiliation(s)
- Ye Ai
- Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, College of Landscape Architecture and Art, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Qing-Dong Zheng
- Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, College of Landscape Architecture and Art, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Meng-Jie Wang
- Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, College of Landscape Architecture and Art, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Long-Wei Xiong
- Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, College of Landscape Architecture and Art, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Peng Li
- Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, College of Landscape Architecture and Art, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Li-Ting Guo
- Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, College of Landscape Architecture and Art, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Meng-Yao Wang
- Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, College of Landscape Architecture and Art, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Dong-Hui Peng
- Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, College of Landscape Architecture and Art, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Si-Ren Lan
- Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, College of Landscape Architecture and Art, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Zhong-Jian Liu
- Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, College of Landscape Architecture and Art, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
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30
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Xie N, Huang X, Zhou J, Song X, Lin J, Yan M, Zhu M, Li J, Wang K. The R2R3- MYB transcription factor CsMYB42 regulates theanine biosynthesis in albino tea leaves. Plant Sci 2023; 336:111850. [PMID: 37648117 DOI: 10.1016/j.plantsci.2023.111850] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/07/2023] [Accepted: 08/27/2023] [Indexed: 09/01/2023]
Abstract
Theanine is a unique secondary metabolite in tea plants and contributes to the umami taste and health benefits of tea. However, theanine biosynthesis in tea plants is not fully understood, and its mechanism of transcriptional regulation remains poorly reported. Theanine content was significantly correlated with the expression of theanine biosynthesis-related gene CsGS1c and transcription factor CsMYB42 in different leaf positions and picking times, but there was no significant correlation in different tissues of albino tea plant 'Anjibaicha'. This suggests that CsMYB42 may regulate CsGS1c to synthesize theanine in albino tea leaves, and the regulation is tissue specific. CsMYB42 is a nuclear-localized R2R3-MYB transcription factor gene with transcriptional activation activity. Yeast one-hybrid assay and electrophoretic mobility shift assay confirmed the direct binding of CsMYB42 to the promoter of CsGS1c. Luciferase assay showed that CsMYB42 activates the CsGS1c expression. Furthermore, the inhibition of CsMYB42 using an antisense oligonucleotide in tea leaves decreased CsGS1c expression and theanine content. These results indicate that CsMYB42 plays a crucial role in activating the expression of CsGS1c and may be involved in the biosynthesis of theanine in albino tea leaves. This study provides fresh insights into the tissue-specific regulation of theanine biosynthesis, which laid a foundation for breeding high-theanine tea plants.
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Affiliation(s)
- Nianci Xie
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients & Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China; Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, China
| | - Xiangxiang Huang
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients & Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China; Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, China
| | - Jiaxin Zhou
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients & Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China; Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, China
| | - Xiaofeng Song
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients & Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China; Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, China
| | - Junming Lin
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients & Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China; Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, China
| | - Meihong Yan
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients & Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China; Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, China
| | - Mingzhi Zhu
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients & Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China; Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, China.
| | - Juan Li
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients & Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China; Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, China.
| | - Kunbo Wang
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients & Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China; Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, China; Key Laboratory for Evaluation and Utilization of Gene Resources of Horticultural Crops, Ministry of Agriculture and Rural Affairs of China, Hunan Agricultural University, Changsha 410128, China.
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31
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Denoyes B, Prohaska A, Petit J, Rothan C. Deciphering the genetic architecture of fruit color in strawberry. J Exp Bot 2023; 74:6306-6320. [PMID: 37386925 PMCID: PMC10627153 DOI: 10.1093/jxb/erad245] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 06/28/2023] [Indexed: 07/01/2023]
Abstract
Fruits of Fragaria species usually have an appealing bright red color due to the accumulation of anthocyanins, water-soluble flavonoid pigments. Octoploid cultivated strawberry (Fragaria × ananassa) is a major horticultural crop for which fruit color and associated nutritional value are main breeding targets. Great diversity in fruit color intensity and pattern is observed not only in cultivated strawberry but also in wild relatives such as its octoploid progenitor F. chiloensis or the diploid woodland strawberry F. vesca, a model for fruit species in the Rosaceae. This review examines our understanding of fruit color formation in strawberry and how ongoing developments will advance it. Natural variations of fruit color as well as color changes during fruit development or in response to several cues have been used to explore the anthocyanin biosynthetic pathway and its regulation. So far, the successful identification of causal genetic variants has been largely driven by the availability of high-throughput genotyping tools and high-quality reference genomes of F. vesca and F. × ananassa. The current completion of haplotype-resolved genomes of F. × ananassa combined with QTL mapping will accelerate the exploitation of the untapped genetic diversity of fruit color and help translate the findings into strawberry improvement.
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Affiliation(s)
- Béatrice Denoyes
- INRAE and Univ. of Bordeaux, UMR 1332 Biologie du Fruit et Pathologie, F-33140 Villenave d’Ornon, France
| | - Alexandre Prohaska
- INRAE and Univ. of Bordeaux, UMR 1332 Biologie du Fruit et Pathologie, F-33140 Villenave d’Ornon, France
- INVENIO, MIN de Brienne, Bordeaux, France
| | - Johann Petit
- INRAE and Univ. of Bordeaux, UMR 1332 Biologie du Fruit et Pathologie, F-33140 Villenave d’Ornon, France
| | - Christophe Rothan
- INRAE and Univ. of Bordeaux, UMR 1332 Biologie du Fruit et Pathologie, F-33140 Villenave d’Ornon, France
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Guo L, Chen T, Chu X, Sun K, Yu F, Que F, Ahmad Z, Wei Q, Ramakrishnan M. Anatomical and Transcriptome Analyses of Moso Bamboo Culm Neck Growth: Unveiling Key Insights. Plants (Basel) 2023; 12:3478. [PMID: 37836218 PMCID: PMC10574802 DOI: 10.3390/plants12193478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 09/24/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023]
Abstract
The Moso bamboo culm neck, connected with the rhizome and the shoot bud, is an important hub for connecting and transporting the aboveground and belowground systems of bamboo for the shoot bud development and rapid growth. Our previous study revealed that the culm neck generally undergoes six different developmental stages (CNS1-CNS6), according to the primary thickening growth of the underground shoot bud. However, the molecular mechanism of the culm neck development remains unknown. The present study focused on the developmental process of the CNS3-CNS5 stages, representing the early, middle, and late elongation stages, respectively. These stages are densely packed with vascular tissues and consist of epidermis, hypodermis, cortex, and ground tissue. Unlike the hollow structure of the culms, the culm necks are solid structures. As the culm neck continues to grow, the lignin deposition increases noticeably, contributing to its progressive strengthening. For the transcriptome analysis, a total of 161,160 transcripts with an average length of 2373 were obtained from these stages using both PacBio and Illumina sequencing. A total of 92.2% of the reads mapped to the Moso bamboo reference genome. Further analysis identified a total of 5524 novel genes and revealed a dynamic transcriptome. Secondary-metabolism- and transport-related genes were upregulated particularly with the growth of the culm neck. Further analysis revealed the molecular processes of lignin accumulation in the culm neck, which include differentially expressed genes (DEGs) related to cell wall loosening and remodeling and secondary metabolism. Moreover, the upregulations of transcription factors such as MYBH and RSM in the MYB family play crucial roles during critical transitions in the culm neck development, such as changes in the angle between the rhizome and the culm neck. Our new findings provide essential insights into the cellular roadmaps, transcriptional networks, and key genes involved in the culm neck development.
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Affiliation(s)
- Lin Guo
- State Key Laboratory of Tree Genetics and Breeding, Co-Innovation Center for Sustainable Forestry in Southern China, Bamboo Research Institute, Key Laboratory of National Forestry and Grassland Administration on Subtropical Forest Biodiversity Conservation, School of Life Sciences, Nanjing Forestry University, Nanjing 210037, China
| | - Tianguo Chen
- Changzhou Agricultural Technology Extension Center, Changzhou 213000, China
| | - Xue Chu
- State Key Laboratory of Tree Genetics and Breeding, Co-Innovation Center for Sustainable Forestry in Southern China, Bamboo Research Institute, Key Laboratory of National Forestry and Grassland Administration on Subtropical Forest Biodiversity Conservation, School of Life Sciences, Nanjing Forestry University, Nanjing 210037, China
| | - Kai Sun
- State Key Laboratory of Tree Genetics and Breeding, Co-Innovation Center for Sustainable Forestry in Southern China, Bamboo Research Institute, Key Laboratory of National Forestry and Grassland Administration on Subtropical Forest Biodiversity Conservation, School of Life Sciences, Nanjing Forestry University, Nanjing 210037, China
| | - Fen Yu
- Changzhou Agricultural Technology Extension Center, Changzhou 213000, China
| | - Feng Que
- State Key Laboratory of Tree Genetics and Breeding, Co-Innovation Center for Sustainable Forestry in Southern China, Bamboo Research Institute, Key Laboratory of National Forestry and Grassland Administration on Subtropical Forest Biodiversity Conservation, School of Life Sciences, Nanjing Forestry University, Nanjing 210037, China
| | - Zishan Ahmad
- State Key Laboratory of Tree Genetics and Breeding, Co-Innovation Center for Sustainable Forestry in Southern China, Bamboo Research Institute, Key Laboratory of National Forestry and Grassland Administration on Subtropical Forest Biodiversity Conservation, School of Life Sciences, Nanjing Forestry University, Nanjing 210037, China
| | - Qiang Wei
- State Key Laboratory of Tree Genetics and Breeding, Co-Innovation Center for Sustainable Forestry in Southern China, Bamboo Research Institute, Key Laboratory of National Forestry and Grassland Administration on Subtropical Forest Biodiversity Conservation, School of Life Sciences, Nanjing Forestry University, Nanjing 210037, China
- Jiangxi Provincial Key Laboratory for Bamboo Germplasm Resources and Utilization, Jiangxi Agriculture University, Nanchang 330045, China
| | - Muthusamy Ramakrishnan
- State Key Laboratory of Tree Genetics and Breeding, Co-Innovation Center for Sustainable Forestry in Southern China, Bamboo Research Institute, Key Laboratory of National Forestry and Grassland Administration on Subtropical Forest Biodiversity Conservation, School of Life Sciences, Nanjing Forestry University, Nanjing 210037, China
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Fehr A, Arvidsson G, Nordlund J, Lönnerholm G, Stenman G, Andersson MK. Increased MYB alternative promoter usage is associated with relapse in acute lymphoblastic leukemia. Genes Chromosomes Cancer 2023; 62:597-606. [PMID: 37218648 DOI: 10.1002/gcc.23151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 05/09/2023] [Accepted: 05/09/2023] [Indexed: 05/24/2023] Open
Abstract
Therapy-resistant disease is a major cause of death in patients with acute lymphoblastic leukemia (ALL). Activation of the MYB oncogene is associated with ALL and leads to uncontrolled neoplastic cell proliferation and blocked differentiation. Here, we used RNA-seq to study the clinical significance of MYB expression and MYB alternative promoter (TSS2) usage in 133 pediatric ALLs. RNA-seq revealed that all cases analyzed overexpressed MYB and demonstrated MYB TSS2 activity. qPCR analyses confirmed the expression of the alternative MYB promoter also in seven ALL cell lines. Notably, high MYB TSS2 activity was significantly associated with relapse (p = 0.007). Moreover, cases with high MYB TSS2 usage showed evidence of therapy-resistant disease with increased expression of ABC multidrug resistance transporter genes (e.g., ABCA2, ABCB5, and ABCC10) and enzymes catalyzing drug degradation (e.g., CYP1A2, CYP2C9, and CYP3A5). Elevated MYB TSS2 activity was further associated with augmented KRAS signaling (p < 0.05) and decreased methylation of the conventional MYB promoter (p < 0.01). Taken together, our results suggest that MYB alternative promoter usage is a novel potential prognostic biomarker for relapse and therapy resistance in pediatric ALL.
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Affiliation(s)
- André Fehr
- Sahlgrenska Center for Cancer Research, Department of Pathology, University of Gothenburg, Gothenburg, Sweden
| | - Gustav Arvidsson
- Department of Medical Sciences and Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Jessica Nordlund
- Department of Medical Sciences and Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Gudmar Lönnerholm
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Göran Stenman
- Sahlgrenska Center for Cancer Research, Department of Pathology, University of Gothenburg, Gothenburg, Sweden
| | - Mattias K Andersson
- Sahlgrenska Center for Cancer Research, Department of Pathology, University of Gothenburg, Gothenburg, Sweden
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Lemma RB, Ledsaak M, Fuglerud BM, Rodríguez-Castañeda F, Eskeland R, Gabrielsen OS. MYB regulates the SUMO protease SENP1 and its novel interaction partner UXT, modulating MYB target genes and the SUMO landscape. J Biol Chem 2023; 299:105062. [PMID: 37468105 PMCID: PMC10463205 DOI: 10.1016/j.jbc.2023.105062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 07/05/2023] [Accepted: 07/07/2023] [Indexed: 07/21/2023] Open
Abstract
SUMOylation is a post-translational modification frequently found on nuclear proteins, including transcription factors (TFs) and coactivators. By controlling the activity of several TFs, SUMOylation may have far-reaching effects. MYB is an example of a developmental TF subjected to SUMO-mediated regulation, through both SUMO conjugation and SUMO binding. How SUMO affects MYB target genes is unknown. Here, we explored the global effect of reduced SUMOylation of MYB on its downstream gene programs. RNA-Seq in K562 cells after MYB knockdown and rescue with mutants having an altered SUMO status revealed a number of differentially regulated genes and distinct gene ontology term enrichments. Clearly, the SUMO status of MYB both quantitatively and qualitatively affects its regulome. The transcriptome data further revealed that MYB upregulates the SUMO protease SENP1, a key enzyme that removes SUMO conjugation from SUMOylated proteins. Given this role of SENP1 in the MYB regulome, we expanded the analysis, mapped interaction partners of SENP1, and identified UXT as a novel player affecting the SUMO system by acting as a repressor of SENP1. MYB inhibits the expression of UXT suggesting that MYB is able not only to control a specific gene program directly but also indirectly by affecting the SUMO landscape through SENP1 and UXT. These findings suggest an autoactivation loop whereby MYB, through enhancing SENP1 and reducing UXT, is itself being activated by a reduced level of repressive SUMOylation. We propose that overexpressed MYB, seen in multiple cancers, may drive this autoactivation loop and contribute to oncogenic activation of MYB.
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Affiliation(s)
- Roza Berhanu Lemma
- Department of Biosciences, University of Oslo, Oslo, Norway; Centre for Molecular Medicine Norway (NCMM), Nordic EMBL Partnership, University of Oslo, Oslo, Norway.
| | - Marit Ledsaak
- Department of Biosciences, University of Oslo, Oslo, Norway; Faculty of Medicine, Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | | | | | - Ragnhild Eskeland
- Department of Biosciences, University of Oslo, Oslo, Norway; Faculty of Medicine, Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway; Faculty of Medicine, Centre for Cancer Cell Reprogramming, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
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T.R. PP, M. S, Kripesh G. A Study on Myloblastosis Gene ( MYB) in Adenoid Cystic Carcinoma Using the New IHC Marker MYB (SZ04-81). Indian J Otolaryngol Head Neck Surg 2023; 75:1414-1420. [PMID: 37636647 PMCID: PMC10447822 DOI: 10.1007/s12070-023-03471-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 01/09/2023] [Indexed: 02/23/2023] Open
Abstract
Background and aim: Adenoid cystic carcinoma is one of the most common malignant neoplasms of the salivary gland. It has overlapping histological features with other salivary gland tumors. MYB is a nuclear marker which is known to be expressed in Adenoid cystic carcinoma. In this study we aim to determine the sensitivity and specificity of MYB IHC marker to differentiate Adenoid cystic carcinoma from other benign and malignant salivary gland tumors. Materials and method: This is a retrospective case control study on the paraffin blocks of 78 cases of salivary gland tumors obtained over a period of 5 years. MYB Ser11 monoclonal antibody of clone SZ04-81 IHC, a nuclear marker was done on all cases. The results observed was tabulated and statistical analysis was done to calculate the sensitivity and specificity of the MYB IHC marker. Results: The mean age group of Adenoid cystic carcinoma was 45 years with a female preponderance. 60% of the cases of Adenoid cystic carcinoma were from minor salivary glands spread across various sites. The sensitivity and specificity of the MYB IHC marker were statistically analyzed and found to be 93.9% and 97.8% respectively. Conclusion: The present study shows substantial expression of MYB immunohistochemical marker in Adenoid cystic carcinoma, with a very high sensitivity and specificity obtained using the clone SZ04-81. Thus this marker can be used in the diagnosis of adenoid cystic carcinoma. However, correlation with H & E and FISH studies are required. Supplementary Information The online version contains supplementary material available at 10.1007/s12070-023-03471-4.
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Affiliation(s)
- Praveen Paul T.R.
- Registrar, Department of histopathology, SRM Institutes for Medical Science, Chennai, India
| | - Susruthan M.
- Professor, Department of Pathology, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
| | - Gokul Kripesh
- Senior Registrar, Department of histopathology, SRM Institutes for Medical Science, Chennai, India
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Peng Y, Yuan Y, Chang W, Zheng L, Ma W, Ren H, Liu P, Zhu L, Su J, Ma F, Li M, Ma B. Transcriptional repression of MdMa1 by Md MYB21 in Ma locus decreases malic acid content in apple fruit. Plant J 2023; 115:1231-1242. [PMID: 37219375 DOI: 10.1111/tpj.16314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 05/08/2023] [Accepted: 05/18/2023] [Indexed: 05/24/2023]
Abstract
Malic acid is a major organic acid component of apples and a crucial determinant of fruit organoleptic quality. A candidate gene for malic acid content, designated MdMa1, was previously identified in the Ma locus, which is a major quantitative trait locus (QTL) for apple fruit acidity located on the linkage group 16. Region-based association mapping to detect candidate genes in the Ma locus identified MdMa1 and an additional MdMYB21 gene putatively associated with malic acid. MdMYB21 was significantly associated with fruit malic acid content, accounting for ~7.48% of the observed phenotypic variation in the apple germplasm collection. Analyses of transgenic apple calli, fruits and tomatoes demonstrated that MdMYB21 negatively regulated malic acid accumulation. The apple fruit acidity-related MdMa1 and its tomato ortholog, SlALMT9, exhibited lower expression profiles in apple calli, mature fruits and tomatoes in which MdMYB21 was overexpressed, compared with their corresponding wild-type variety. MdMYB21 directly binds to the MdMa1 promoter and represses its expression. Interestingly, a 2-bp variation in the MdMYB21 promoter region altered its expression and regulation of its target gene, MdMa1, expression. Our findings not only demonstrate the efficiency of integrating QTL and association mapping in the identification of candidate genes controlling complex traits in apples, but also provide insights into the complex regulatory mechanism of fruit malic acid accumulation.
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Affiliation(s)
- Yunjing Peng
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Yangyang Yuan
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Wenjing Chang
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Litong Zheng
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Wenfang Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Hang Ren
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Peipei Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Lingcheng Zhu
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Jing Su
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Fengwang Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Mingjun Li
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Baiquan Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
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Bassolino L, Fulvio F, Pastore C, Pasini F, Gallina Toschi T, Filippetti I, Paris R. When Cannabis sativa L. Turns Purple: Biosynthesis and Accumulation of Anthocyanins. Antioxidants (Basel) 2023; 12:1393. [PMID: 37507932 PMCID: PMC10376404 DOI: 10.3390/antiox12071393] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/21/2023] [Accepted: 07/01/2023] [Indexed: 07/30/2023] Open
Abstract
Environmental cues elicit anthocyanin synthesis in plant vegetative and reproductive tissues. Their accumulation in different organs accounts for their diverse biological functions, mainly related to their antioxidant properties, and it depends on a temporally and spatially regulated mechanism controlled by the action of a well-known multi-transcription factor complex. Despite the highly recognizable value of Cannabis sativa L. as a natural biorefinery of phytochemicals, very little information is known on anthocyanin pigmentation in this species. In this work, a targeted quantification of anthocyanins via HPLC-MS/MS, combined with the transcriptional profile via RT-qPCR of genes encoding for structural and decorating enzymes and regulatory transcription factors in different C. sativa tissues, help gain insights into the anthocyanin pathway in this species. To the best of our knowledge, this is the first report on the identification of cyanidin-3-rutinoside (keracyanin) as the major anthocyanin in C. sativa vegetative and floral tissues. Keracyanin amounts were higher than in small berries, suggesting that Cannabis biomass is a valuable source of colored antioxidants to be exploited in diverse applications. Furthermore, a gene putatively encoding for an anthocyanin DTX35 type transporter and CsTTG1 were identified in silico and their transcriptional levels were assessed via RT-qPCR. The results allow us to provide the first model of anthocyanin regulation in C. sativa, opening a new research scenario in this species for both breeding purposes and phytochemical exploitation.
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Affiliation(s)
- Laura Bassolino
- CREA-Research Centre for Cereal and Industrial Crops, Via di Corticella 133, 40128 Bologna, Italy
| | - Flavia Fulvio
- CREA-Research Centre for Cereal and Industrial Crops, Via di Corticella 133, 40128 Bologna, Italy
| | - Chiara Pastore
- Department of Agricultural and Food Sciences, University of Bologna, 40127 Bologna, Italy
| | - Federica Pasini
- Department of Agricultural and Food Sciences, University of Bologna, 40127 Bologna, Italy
| | - Tullia Gallina Toschi
- Department of Agricultural and Food Sciences, University of Bologna, 40127 Bologna, Italy
| | - Ilaria Filippetti
- Department of Agricultural and Food Sciences, University of Bologna, 40127 Bologna, Italy
| | - Roberta Paris
- CREA-Research Centre for Cereal and Industrial Crops, Via di Corticella 133, 40128 Bologna, Italy
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da Silva FJ, Carvalho de Azevedo J, Ralph ACL, Pinheiro JDJV, Freitas VM, Calcagno DQ. Salivary glands adenoid cystic carcinoma: a molecular profile update and potential implications. Front Oncol 2023; 13:1191218. [PMID: 37476370 PMCID: PMC10354556 DOI: 10.3389/fonc.2023.1191218] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 06/01/2023] [Indexed: 07/22/2023] Open
Abstract
Adenoid cystic carcinoma (ACC) is an aggressive tumor with a high propensity for distant metastasis and perineural invasion. This tumor is more commonly found in regions of the head and neck, mainly the salivary glands. In general, the primary treatment modality for ACC is surgical resection and, in some cases, postoperative radiotherapy. However, no effective systemic treatment is available for patients with advanced disease. Furthermore, this tumor type is characterized by recurrent molecular alterations, especially rearrangements involving the MYB, MYBL1, and NFIB genes. In addition, they also reported copy number alterations (CNAs) that impact genes. One of them is C-KIT, mutations that affect signaling pathways such as NOTCH, PI3KCA, and PTEN, as well as alterations in chromatin remodeling genes. The identification of new molecular targets enables the development of specific therapies. Despite ongoing investigations into immunotherapy, tyrosine kinase inhibitors, and anti-angiogenics, no systemic therapy is approved by the FDA for ACC. In this review, we report the genetic and cytogenetic findings on head and neck ACC, highlighting possible targets for therapeutic interventions.
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Affiliation(s)
- Fernanda Jardim da Silva
- Núcleo de Pesquisas em Oncologia, Programa de Pós-Graduação em Oncologia e Ciências Médicas, Universidade Federal do Pará, Belém, Brazil
| | - Juscelino Carvalho de Azevedo
- Núcleo de Pesquisas em Oncologia, Programa de Pós-Graduação em Oncologia e Ciências Médicas, Universidade Federal do Pará, Belém, Brazil
- Hospital Universitário João de Barros Barreto, Programa de Residência Multiprofissional em Saúde (Oncologia), Universidade Federal do Pará, Belém, Brazil
| | - Ana Carolina Lima Ralph
- Faculdade de Farmácia, Faculdade Estácio, Carapicuíba, Brazil
- Instituto de Ciências da Saúde, Programa de Pós-Graduação em Odontologia, Universidade Federal do Pará, Belém, Brazil
| | - João de Jesus Viana Pinheiro
- Laboratório de Microambiente Tumoral, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
| | - Vanessa Morais Freitas
- Instituto de Ciências da Saúde, Programa de Pós-Graduação em Odontologia, Universidade Federal do Pará, Belém, Brazil
| | - Danielle Queiroz Calcagno
- Núcleo de Pesquisas em Oncologia, Programa de Pós-Graduação em Oncologia e Ciências Médicas, Universidade Federal do Pará, Belém, Brazil
- Hospital Universitário João de Barros Barreto, Programa de Residência Multiprofissional em Saúde (Oncologia), Universidade Federal do Pará, Belém, Brazil
- Laboratório de Microambiente Tumoral, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
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Luan A, Zhang W, Yang M, Zhong Z, Wu J, He Y, He J. Unveiling the molecular mechanism involving anthocyanins in pineapple peel discoloration during fruit maturation. Food Chem 2023; 412:135482. [PMID: 36753941 DOI: 10.1016/j.foodchem.2023.135482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 12/29/2022] [Accepted: 01/11/2023] [Indexed: 01/15/2023]
Abstract
Peel color is a key factor that affects the fruit's aesthetic and economic values. Limited knowledge is available on the regulation of pineapple peel discoloration. Here, we report that a decrease in anthocyanin biosynthesis, particularly cyanidin, is predominantly associated with the pineapple peel color change during maturation. The findings suggest that the changes in the expression of key structural genes (early and late biosynthetic genes) of the anthocyanin (cyanidin) biosynthesis pathway are responsible for peel discoloration. Based on a gene co-expression analysis and a transient expression, two transcription factors i.e., AcHOX21 and AcMYB12, were identified, whose' downregulation leads to reduced anthocyanin accumulation with fruit maturation. The endogenous levels of jasmonic acid, gibberellic acid, and auxins are also involved in anthocyanin-content-led peel discoloration. Overall, the discovery of genes regulating anthocyanin biosynthesis in pineapple peel provides a theoretical basis for improving the fruit's aesthetic value through genetic engineering.
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Affiliation(s)
- Aiping Luan
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, Haikou 571101, China
| | - Wei Zhang
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, Haikou 571101, China; Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Mingzhe Yang
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, Haikou 571101, China; Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Ziqin Zhong
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, Haikou 571101, China; Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Jing Wu
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, Haikou 571101, China; Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Yehua He
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Junhu He
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, Haikou 571101, China.
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Ahmad I, Soni SK, M M, Pandey D. In-silico mining and characterization of MYB family genes in wilt-resistant hybrid guava (Psidium guajava × Psidium molle). J Genet Eng Biotechnol 2023; 21:74. [PMID: 37389653 DOI: 10.1186/s43141-023-00528-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 06/20/2023] [Indexed: 07/01/2023]
Abstract
BACKGROUND The MYB family is one of the most significant groups of transcription factors in plants. However, several MYBs have been linked to secondary metabolism and are important for determining the color of fruit's peel and pulp. Despite being a substantial fruit crop in tropical and subtropical areas of the world, wilt-resistant hybrid guava (Psidium guajava × Psidium molle; PGPM) has not yet been the subject of a thorough examination. This study's goal was to assess the expression of MYB in guava fruit pulp, roots, and seeds to predict its function by in silico analysis of the guava root transcriptome data. RESULTS In the current study, we have mined the MYBs family of MYB genes from the transcriptome of the PGPM guava root. We have mined 15 distinct MYB transcription factor genes/transcripts viz MYB3, MYB4, MYB23, MYB86, MYB90, MYB308, MYB5, MYB82, MYB114, MYB6, MYB305, MYB44, MYB51, MYB46, and MYB330. From the analyses, it was found that R2-MYB and R3-MYB domains are conserved in all known guava MYB proteins. The expression of six different MYB TFs was examined using semi-quantitative RT-PCR in "Shweta" pulp (white colour pulp), "Lalit" pulp (red color pulp), "Lalit" root, and "Lalit" seed. CONCLUSION There were 15 MYB family members observed in guava. They were unequally distributed across the chromosomes, most likely as a result of gene duplication. Additionally, the expression patterns of the particular MYBs showed that MYB may be involved in the control of wilt, fruit ripening, seed development, and root development. Our results allow for a more thorough functional characterization of the guava MYB family genes and open the door to additional research into one essential MYB transcription factor family of genes and its involvement in the growth and ripening of guava fruit.
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Affiliation(s)
- Israr Ahmad
- Division of Crop Improvement and Biotechnology, ICAR-Central Institute for Subtropical Horticulture, Rehmankhera, P.O. Kakori, Lucknow, Uttar Pradesh, 226101, India.
| | - Sumit K Soni
- Division of Crop Improvement and Biotechnology, ICAR-Central Institute for Subtropical Horticulture, Rehmankhera, P.O. Kakori, Lucknow, Uttar Pradesh, 226101, India.
| | - Muthukumar M
- Division of Crop Improvement and Biotechnology, ICAR-Central Institute for Subtropical Horticulture, Rehmankhera, P.O. Kakori, Lucknow, Uttar Pradesh, 226101, India
| | - Devendra Pandey
- Division of Crop Improvement and Biotechnology, ICAR-Central Institute for Subtropical Horticulture, Rehmankhera, P.O. Kakori, Lucknow, Uttar Pradesh, 226101, India
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Leng L, Zhang X, Liu W, Wu Z. Genome-Wide Identification of the MYB and bHLH Families in Carnations and Expression Analysis at Different Floral Development Stages. Int J Mol Sci 2023; 24:ijms24119499. [PMID: 37298450 DOI: 10.3390/ijms24119499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 05/26/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023] Open
Abstract
Carnations are one of the most popular ornamental flowers in the world with varied flower colors that have long attracted breeders and consumers alike. The differences in carnation flower color are mainly the result of the accumulation of flavonoid compounds in the petals. Anthocyanins are a type of flavonoid compound that produce richer colors. The expression of anthocyanin biosynthetic genes is mainly regulated by MYB and bHLH transcription factors. However, these TFs have not been comprehensively reported in popular carnation cultivars. Herein, 106 MYB and 125 bHLH genes were identified in the carnation genome. Gene structure and protein motif analyses show that members of the same subgroup have similar exon/intron and motif organization. Phylogenetic analysis combining the MYB and bHLH TFs from Arabidopsis thaliana separates the carnation DcaMYBs and DcabHLHs into 20 subgroups each. Gene expression (RNAseq) and phylogenetic analysis shows that DcaMYB13 in subgroup S4 and DcabHLH125 in subgroup IIIf have similar expression patterns to those of DFR, ANS, and GT/AT, which regulate anthocyanin accumulation, in the coloring of carnations, and in red-flowered and white-flowered carnations, DcaMYB13 and DcabHLH125 are likely the key genes responsible for the formation of red petals in carnations. These results lay a foundation for the study of MYB and bHLH TFs in carnations and provide valuable information for the functional verification of these genes in studies of tissue-specific regulation of anthocyanin biosynthesis.
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Affiliation(s)
- Luhong Leng
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
- Kunpeng Institute of Modern Agriculture at Foshan, Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, China
| | - Xiaoni Zhang
- Kunpeng Institute of Modern Agriculture at Foshan, Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, China
| | - Weichao Liu
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
- Key Laboratory of Horticultural Plant Biology, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhiqiang Wu
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
- Kunpeng Institute of Modern Agriculture at Foshan, Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, China
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Sukumaran S, Lethin J, Liu X, Pelc J, Zeng P, Hassan S, Aronsson H. Genome-Wide Analysis of MYB Transcription Factors in the Wheat Genome and Their Roles in Salt Stress Response. Cells 2023; 12:1431. [PMID: 37408265 DOI: 10.3390/cells12101431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 04/26/2023] [Accepted: 05/03/2023] [Indexed: 07/07/2023] Open
Abstract
Large and rapidly increasing areas of salt-affected soils are posing major challenges for the agricultural sector. Most fields used for the important food crop Triticum aestivum (wheat) are expected to be salt-affected within 50 years. To counter the associated problems, it is essential to understand the molecular mechanisms involved in salt stress responses and tolerance, thereby enabling their exploitation in the development of salt-tolerant varieties. The myeloblastosis (MYB) family of transcription factors are key regulators of responses to both biotic and abiotic stress, including salt stress. Thus, we used the Chinese spring wheat genome assembled by the International Wheat Genome Sequencing Consortium to identify putative MYB proteins (719 in total). Protein families (PFAM) analysis of the MYB sequences identified 28 combinations of 16 domains in the encoded proteins. The most common consisted of MYB_DNA-binding and MYB-DNA-bind_6 domains, and five highly conserved tryptophans were located in the aligned MYB protein sequence. Interestingly, we found and characterized a novel 5R-MYB group in the wheat genome. In silico studies showed that MYB transcription factors MYB3, MYB4, MYB13 and MYB59 are involved in salt stress responses. qPCR analysis confirmed upregulation of the expression of all these MYBs in both roots and shoots of the wheat variety BARI Gom-25 (except MYB4, which was downregulated in roots) under salt stress. Moreover, we identified nine target genes involved in salt stress that are regulated by the four MYB proteins, most of which have cellular locations and are involved in catalytic and binding activities associated with various cellular and metabolic processes.
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Affiliation(s)
- Selvakumar Sukumaran
- Department of Biological and Environment Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden
| | - Johanna Lethin
- Department of Biological and Environment Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden
| | - Xin Liu
- Department of Biological and Environment Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang 611130, China
| | - Justyna Pelc
- Department of Biological and Environment Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden
- Department of Bioengineering, Faculty of Environmental Management and Agriculture, West Pomeranian University of Technology, 71-434 Szczecin, Poland
| | - Peng Zeng
- Department of Biological and Environment Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210014, China
| | - Sameer Hassan
- Department of Biological and Environment Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden
- OlsAro Crop Biotech AB, Erik Dahlbergsgatan 11A, 41126 Gothenburg, Sweden
| | - Henrik Aronsson
- Department of Biological and Environment Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden
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Viswanath KK, Kuo SY, Tu CW, Hsu YH, Huang YW, Hu CC. The Role of Plant Transcription Factors in the Fight against Plant Viruses. Int J Mol Sci 2023; 24:ijms24098433. [PMID: 37176135 PMCID: PMC10179606 DOI: 10.3390/ijms24098433] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/20/2023] [Accepted: 05/04/2023] [Indexed: 05/15/2023] Open
Abstract
Plants are vulnerable to the challenges of unstable environments and pathogen infections due to their immobility. Among various stress conditions, viral infection is a major threat that causes significant crop loss. In response to viral infection, plants undergo complex molecular and physiological changes, which trigger defense and morphogenic pathways. Transcription factors (TFs), and their interactions with cofactors and cis-regulatory genomic elements, are essential for plant defense mechanisms. The transcriptional regulation by TFs is crucial in establishing plant defense and associated activities during viral infections. Therefore, identifying and characterizing the critical genes involved in the responses of plants against virus stress is essential for the development of transgenic plants that exhibit enhanced tolerance or resistance. This article reviews the current understanding of the transcriptional control of plant defenses, with a special focus on NAC, MYB, WRKY, bZIP, and AP2/ERF TFs. The review provides an update on the latest advances in understanding how plant TFs regulate defense genes expression during viral infection.
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Affiliation(s)
- Kotapati Kasi Viswanath
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung 40227, Taiwan
| | - Song-Yi Kuo
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung 40227, Taiwan
| | - Chin-Wei Tu
- Ph.D. Program in Microbial Genomics, National Chung Hsing University and Academia Sinica, Taichung 40227, Taiwan
| | - Yau-Heiu Hsu
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung 40227, Taiwan
- Advanced Plant Biotechnology Centre, National Chung Hsing University, Taichung 40227, Taiwan
| | - Ying-Wen Huang
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung 40227, Taiwan
- Advanced Plant Biotechnology Centre, National Chung Hsing University, Taichung 40227, Taiwan
| | - Chung-Chi Hu
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung 40227, Taiwan
- Advanced Plant Biotechnology Centre, National Chung Hsing University, Taichung 40227, Taiwan
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Zhang YS, Xu Y, Xing WT, Wu B, Huang DM, Ma FN, Zhan RL, Sun PG, Xu YY, Song S. Identification of the passion fruit ( Passiflora edulis Sims) MYB family in fruit development and abiotic stress, and functional analysis of PeMYB87 in abiotic stresses. Front Plant Sci 2023; 14:1124351. [PMID: 37215287 PMCID: PMC10196401 DOI: 10.3389/fpls.2023.1124351] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 03/21/2023] [Indexed: 05/24/2023]
Abstract
Environmental stresses are ubiquitous in agricultural cultivation, and they affect the healthy growth and development of edible tissues in passion fruit. The study of resistance mechanisms is important in understanding the adaptation and resistance of plants to environmental stresses. In this work, two differently resistant passion fruit varieties were selected, using the expression characteristics of the transcription factor MYB, to explore the resistance mechanism of the MYB gene under various environmental stresses. A total of 174 MYB family members were identified using high-quality passion fruit genomes: 98 2R-MYB, 5 3R-MYB, and 71 1R-MYB (MYB-relate). Their family information was systematically analyzed, including subcellular localization, physicochemical properties, phylogeny at the genomic level, promoter function, encoded proteins, and reciprocal regulation. In this study, bioinformatics and transcriptome sequencing were used to identify members of the PeMYB genes in passion fruit whole-genome data, and biological techniques, such as qPCR, gene clone, and transient transformation of yeast, were used to determine the function of the passion fruit MYB genes in abiotic stress tolerance. Transcriptomic data were obtained for differential expression characteristics of two resistant and susceptible varieties, three expression patterns during pulp development, and four induced expression patterns under abiotic stress conditions. We further focused on the resistance mechanism of PeMYB87 in environmental stress, and we selected 10 representative PeMYB genes for quantitative expression verification. Most of the genes were differentially induced by four abiotic stresses, among which PeMYB87 responded significantly to high-temperature-induced expression and overexpression of the PeMYB87 gene in the yeast system. The transgenic PeMYB87 in yeast showed different degrees of stress resistance under exposure to cold, high temperatures, drought, and salt stresses. These findings lay the foundation for further analysis of the biological functions of PeMYBs involved in stress resistance in passion fruit.
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Affiliation(s)
- Yan-shu Zhang
- National Key Laboratory for Tropical Crop Breeding, Haikou Experimental Station, Tropical Crops Genetic Resources Institute, CATAS/ Germplasm Repository of Passiflora, Haikou, Hainan, China
- Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Sanya Research Institute, Chinese Academy of Tropical Agricultural Sciences, Sanya, Hainan, China
- Hainan Yazhou Bay Seed Laboratory, Sanya, Hainan, China
- College of Landscape and Horticulture, Southwest Forestry University, Kunming, Yunnan, China
| | - Yi Xu
- National Key Laboratory for Tropical Crop Breeding, Haikou Experimental Station, Tropical Crops Genetic Resources Institute, CATAS/ Germplasm Repository of Passiflora, Haikou, Hainan, China
- Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Sanya Research Institute, Chinese Academy of Tropical Agricultural Sciences, Sanya, Hainan, China
- Hainan Yazhou Bay Seed Laboratory, Sanya, Hainan, China
| | - Wen-ting Xing
- National Key Laboratory for Tropical Crop Breeding, Haikou Experimental Station, Tropical Crops Genetic Resources Institute, CATAS/ Germplasm Repository of Passiflora, Haikou, Hainan, China
- Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Sanya Research Institute, Chinese Academy of Tropical Agricultural Sciences, Sanya, Hainan, China
| | - Bin Wu
- National Key Laboratory for Tropical Crop Breeding, Haikou Experimental Station, Tropical Crops Genetic Resources Institute, CATAS/ Germplasm Repository of Passiflora, Haikou, Hainan, China
- Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Sanya Research Institute, Chinese Academy of Tropical Agricultural Sciences, Sanya, Hainan, China
| | - Dong-mei Huang
- National Key Laboratory for Tropical Crop Breeding, Haikou Experimental Station, Tropical Crops Genetic Resources Institute, CATAS/ Germplasm Repository of Passiflora, Haikou, Hainan, China
- Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Sanya Research Institute, Chinese Academy of Tropical Agricultural Sciences, Sanya, Hainan, China
| | - Fu-ning Ma
- National Key Laboratory for Tropical Crop Breeding, Haikou Experimental Station, Tropical Crops Genetic Resources Institute, CATAS/ Germplasm Repository of Passiflora, Haikou, Hainan, China
- Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Sanya Research Institute, Chinese Academy of Tropical Agricultural Sciences, Sanya, Hainan, China
- Hainan Yazhou Bay Seed Laboratory, Sanya, Hainan, China
| | - Ru-lin Zhan
- National Key Laboratory for Tropical Crop Breeding, Haikou Experimental Station, Tropical Crops Genetic Resources Institute, CATAS/ Germplasm Repository of Passiflora, Haikou, Hainan, China
- Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Sanya Research Institute, Chinese Academy of Tropical Agricultural Sciences, Sanya, Hainan, China
- Hainan Yazhou Bay Seed Laboratory, Sanya, Hainan, China
| | - Pei-guang Sun
- National Key Laboratory for Tropical Crop Breeding, Haikou Experimental Station, Tropical Crops Genetic Resources Institute, CATAS/ Germplasm Repository of Passiflora, Haikou, Hainan, China
- Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Sanya Research Institute, Chinese Academy of Tropical Agricultural Sciences, Sanya, Hainan, China
- Hainan Yazhou Bay Seed Laboratory, Sanya, Hainan, China
| | - Yong-yan Xu
- College of Landscape and Horticulture, Southwest Forestry University, Kunming, Yunnan, China
| | - Shun Song
- National Key Laboratory for Tropical Crop Breeding, Haikou Experimental Station, Tropical Crops Genetic Resources Institute, CATAS/ Germplasm Repository of Passiflora, Haikou, Hainan, China
- Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Sanya Research Institute, Chinese Academy of Tropical Agricultural Sciences, Sanya, Hainan, China
- Hainan Yazhou Bay Seed Laboratory, Sanya, Hainan, China
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Martínez-Rivas FJ, Blanco-Portales R, Serratosa MP, Ric-Varas P, Guerrero-Sánchez V, Medina-Puche L, Moyano L, Mercado JA, Alseekh S, Caballero JL, Fernie AR, Muñoz-Blanco J, Molina-Hidalgo FJ. Fa MYB123 interacts with FabHLH3 to regulate the late steps of anthocyanin and flavonol biosynthesis during ripening. Plant J 2023; 114:683-698. [PMID: 36840368 DOI: 10.1111/tpj.16166] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 02/17/2023] [Indexed: 05/10/2023]
Abstract
In this work, we identified and functionally characterized the strawberry (Fragaria × ananassa) R2R3 MYB transcription factor FaMYB123. As in most genes associated with organoleptic properties of ripe fruit, FaMYB123 expression is ripening-related, receptacle-specific, and antagonistically regulated by ABA and auxin. Knockdown of FaMYB123 expression by RNAi in ripe strawberry fruit receptacles downregulated the expression of enzymes involved in the late steps of anthocyanin/flavonoid biosynthesis. Transgenic fruits showed a parallel decrease in the contents of total anthocyanin and flavonoid, especially malonyl derivatives of pelargonidin and cyanidins. The decrease was concomitant with accumulation of proanthocyanin, propelargonidins, and other condensed tannins associated mainly with green receptacles. Potential coregulation between FaMYB123 and FaMYB10, which may act on different sets of genes for the enzymes involved in anthocyanin production, was explored. FaMYB123 and FabHLH3 were found to interact and to be involved in the transcriptional activation of FaMT1, a gene responsible for the malonylation of anthocyanin components during ripening. Taken together, these results demonstrate that FaMYB123 regulates the late steps of the flavonoid pathway in a specific manner. In this study, a new function for an R2R3 MYB transcription factor, regulating the expression of a gene that encodes a malonyltransferase, has been elucidated.
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Affiliation(s)
- Félix J Martínez-Rivas
- Department of Biochemistry and Molecular Biology, University of Cordoba, Edificio Severo Ochoa, Campus de Rabanales, E-14014, Córdoba, Spain
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476, Potsdam-Golm, Germany
| | - Rosario Blanco-Portales
- Department of Biochemistry and Molecular Biology, University of Cordoba, Edificio Severo Ochoa, Campus de Rabanales, E-14014, Córdoba, Spain
| | - María P Serratosa
- Department of Agricultural Chemistry, University of Cordoba, Edificio Marie Curie, Campus de Rabanales, E-14014, Córdoba, Spain
| | - Pablo Ric-Varas
- Department of Plant Biology, Instituto de Hortofruticultura Subtropical y Mediterránea La Mayora, University of Málaga, Campus de Teatinos, E-29071, Málaga, Spain
| | - Víctor Guerrero-Sánchez
- Department of Biochemistry and Molecular Biology, University of Cordoba, Edificio Severo Ochoa, Campus de Rabanales, E-14014, Córdoba, Spain
| | - Laura Medina-Puche
- Department of Biochemistry and Molecular Biology, University of Cordoba, Edificio Severo Ochoa, Campus de Rabanales, E-14014, Córdoba, Spain
- Department of Plant Biochemistry, Centre for Plant Molecular Biology (ZMBP), Eberhard Karls University, Tübingen, Germany
| | - Lourdes Moyano
- Department of Agricultural Chemistry, University of Cordoba, Edificio Marie Curie, Campus de Rabanales, E-14014, Córdoba, Spain
| | - José A Mercado
- Department of Plant Biology, Instituto de Hortofruticultura Subtropical y Mediterránea La Mayora, University of Málaga, Campus de Teatinos, E-29071, Málaga, Spain
| | - Saleh Alseekh
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476, Potsdam-Golm, Germany
- Center of Plant Systems Biology and Biotechnology, Ruski Blvd. 139, Plovdiv, 4000, Bulgaria
| | - José L Caballero
- Department of Biochemistry and Molecular Biology, University of Cordoba, Edificio Severo Ochoa, Campus de Rabanales, E-14014, Córdoba, Spain
| | - Alisdair R Fernie
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476, Potsdam-Golm, Germany
- Center of Plant Systems Biology and Biotechnology, Ruski Blvd. 139, Plovdiv, 4000, Bulgaria
| | - Juan Muñoz-Blanco
- Department of Biochemistry and Molecular Biology, University of Cordoba, Edificio Severo Ochoa, Campus de Rabanales, E-14014, Córdoba, Spain
| | - Francisco J Molina-Hidalgo
- Department of Biochemistry and Molecular Biology, University of Cordoba, Edificio Severo Ochoa, Campus de Rabanales, E-14014, Córdoba, Spain
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Yang K, Hou Y, Wu M, Pan Q, Xie Y, Zhang Y, Sun F, Zhang Z, Wu J. Do MYB5 and DobHLH24, Transcription Factors Involved in Regulating Anthocyanin Accumulation in Dendrobium officinale. Int J Mol Sci 2023; 24:ijms24087552. [PMID: 37108715 PMCID: PMC10142772 DOI: 10.3390/ijms24087552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/10/2023] [Accepted: 04/15/2023] [Indexed: 04/29/2023] Open
Abstract
As a kind of orchid plant with both medicinal and ornamental value, Dendrobium officinale has garnered increasing research attention in recent years. The MYB and bHLH transcription factors play important roles in the synthesis and accumulation of anthocyanin. However, how MYB and bHLH transcription factors work in the synthesis and accumulation of anthocyanin in D. officinale is still unclear. In this study, we cloned and characterized one MYB and one bHLH transcription factor, namely, D. officinale MYB5 (DoMYB5) and D. officinaleb bHLH24 (DobHLH24), respectively. Their expression levels were positively correlated with the anthocyanin content in the flowers, stems, and leaves of D. officinale varieties with different colors. The transient expression of DoMYB5 and DobHLH24 in D. officinale leaf and their stable expression in tobacco significantly promoted the accumulation of anthocyanin. Both DoMYB5 and DobHLH24 could directly bind to the promoters of D. officinale CHS (DoCHS) and D. officinale DFR (DoDFR) and regulate DoCHS and DoDFR expression. The co-transformation of the two transcription factors significantly enhanced the expression levels of DoCHS and DoDFR. DoMYB5 and DobHLH24 may enhance the regulatory effect by forming heterodimers. Drawing on the results of our experiments, we propose that DobHLH24 may function as a regulatory partner by interacting directly with DoMYB5 to stimulate anthocyanin accumulation in D. officinale.
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Affiliation(s)
- Kun Yang
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yibin Hou
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Mei Wu
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Qiuyu Pan
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yilong Xie
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yusen Zhang
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Fenghang Sun
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Zhizhong Zhang
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jinghua Wu
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
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Zhang C, Xin Y, Wang Z, Qin L, Cao L, Li H, Ma X, Yin J, Zhao Z, Liu P, Tang J, Dong C. Melatonin-induced myeloblastosis viral oncogene homologs alleviate fresh-cut lotus root browning during storage by attenuating flavonoid biosynthesis and reactive oxygen species. J Sci Food Agric 2023. [PMID: 37046375 DOI: 10.1002/jsfa.12619] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/03/2023] [Accepted: 04/13/2023] [Indexed: 05/03/2023]
Abstract
BACKGROUND Lotus roots (Nelumbo nucifera Gaertn.) are rich in nutrients and have ornamental and food value. However, browning has caused huge economic losses and security risks during the storage and harvesting of fresh-cut lotus. This study investigated the role of melatonin in inhibiting lotus browning, and illustrates its molecular mechanism. RESULTS The application of melatonin effectively retarded the process of lotus browning, enhanced reactive oxygen species (ROS) scavenging enzyme activity, and inhibited the activity of polyphenol oxidase (PPO), and peroxidase (POD). Melatonin reduced flavonoid content, and decreased enzymatic activity in flavonoid biosynthesis. Transcriptome Sequencing (RNA-seq) was used to screen the genes regulated by exogenous melatonin when defending against fresh-cut lotus browning. Gene co-expression analysis (GCN) indicated that the transcription factors MYB5, MYB6, and MYB308, activated by melatonin, were negatively related to the expression of PPO and the genes related to flavonoid and phenylpropanoid biosynthesis. These myeloblastosis viral oncogene homologs (MYBs) were positively related to the expression of genes encoding the enzymes in glutathione metabolism. CONCLUSION Melatonin retarded lotus browning by transcriptional suppression of key genes associated with flavonoid and phenylpropanoid biosynthesis through the stimulation of MYB5, MYB6, and MYB308. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Chen Zhang
- College of Biological Engineering, Henan University of Technology, Zhengzhou, China
| | - Ying Xin
- College of Food Science and Technology, Henan University of Technology, Zhengzhou, China
| | - Zhiwen Wang
- College of Biological Engineering, Henan University of Technology, Zhengzhou, China
| | - Lili Qin
- College of Biological Engineering, Henan University of Technology, Zhengzhou, China
| | - Longyun Cao
- College of Biological Engineering, Henan University of Technology, Zhengzhou, China
| | - Haifeng Li
- College of Biological Engineering, Henan University of Technology, Zhengzhou, China
| | - Xintian Ma
- College of Biological Engineering, Henan University of Technology, Zhengzhou, China
| | - Jingyu Yin
- College of Biological Engineering, Henan University of Technology, Zhengzhou, China
| | - Zixue Zhao
- College of Biological Engineering, Henan University of Technology, Zhengzhou, China
| | - Pinjie Liu
- College of Biological Engineering, Henan University of Technology, Zhengzhou, China
| | - Jiawei Tang
- College of Biological Engineering, Henan University of Technology, Zhengzhou, China
| | - Chen Dong
- College of Biological Engineering, Henan University of Technology, Zhengzhou, China
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Zeng J, Long YQ, Fu XS, Wang L, Liu ZX, Zhou RB, Liu XD. [Mining and identification of members of MYB transcription factor family in Lonicera macranthoides]. Zhongguo Zhong Yao Za Zhi 2023; 48:2103-2115. [PMID: 37282899 DOI: 10.19540/j.cnki.cjcmm.20230115.103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
As a large family of transcription factors, the MYB family plays a vital role in regulating flower development. We studied the MYB family members in Lonicera macranthoides for the first time and identified three sequences of 1R-MYB, 47 sequences of R2R3-MYB, two sequences of 3R-MYB, and one sequence of 4R-MYB from the transcriptome data. Further, their physicochemical properties, conserved domains, phylogenetic relationship, protein structure, functional information, and expression were analyzed. The results show that the 53 MYB transcription factors had different conserved motifs, physicochemical properties, structures, and functions in wild type and 'Xianglei' cultivar of L. macranthoides, indicating their conservation and diversity in evolution. The transcript level of LmMYB was significantly different between the wild type and 'Xianglei' cultivar as well as between flowers and leaves, and some genes were specifically expressed. Forty-three out of 53 LmMYB sequences were expressed in both flowers and leaves, and 9 of the LmMYB members showed significantly different transcript levels between the wild type and 'Xianglei' cultivar, which were up-regulated in the wild type. The results provide a theoretical basis for further studying the specific functional mechanism of the MYB family.
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Affiliation(s)
- Juan Zeng
- School of Pharmacy, Hunan University of Chinese Medicine Changsha 410208, China Key Laboratory of Germplasm Resources and Standardized Planting of Bulk Authentic Medicinal Materials Changsha 410208, China
| | - Yu-Qing Long
- School of Pharmacy, Hunan University of Chinese Medicine Changsha 410208, China Key Laboratory of Germplasm Resources and Standardized Planting of Bulk Authentic Medicinal Materials Changsha 410208, China
| | - Xue-Sen Fu
- School of Pharmacy, Hunan University of Chinese Medicine Changsha 410208, China Key Laboratory of Germplasm Resources and Standardized Planting of Bulk Authentic Medicinal Materials Changsha 410208, China
| | - Ling Wang
- School of Pharmacy, Hunan University of Chinese Medicine Changsha 410208, China Key Laboratory of Germplasm Resources and Standardized Planting of Bulk Authentic Medicinal Materials Changsha 410208, China
| | - Zi-Xuan Liu
- School of Pharmacy, Hunan University of Chinese Medicine Changsha 410208, China Key Laboratory of Germplasm Resources and Standardized Planting of Bulk Authentic Medicinal Materials Changsha 410208, China
| | - Ri-Bao Zhou
- School of Pharmacy, Hunan University of Chinese Medicine Changsha 410208, China Key Laboratory of Germplasm Resources and Standardized Planting of Bulk Authentic Medicinal Materials Changsha 410208, China Key Laboratory of Traditional Chinese Medicine Modernization Research in General Colleges and Universities of Hunan Province Changsha 410208, China
| | - Xiang-Dan Liu
- School of Pharmacy, Hunan University of Chinese Medicine Changsha 410208, China Key Laboratory of Germplasm Resources and Standardized Planting of Bulk Authentic Medicinal Materials Changsha 410208, China Key Laboratory of Traditional Chinese Medicine Modernization Research in General Colleges and Universities of Hunan Province Changsha 410208, China
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Kalelioglu T, Rama B, Cho BB, Lopes BM, Patel SH. Pediatric-type diffuse low-grade glioma with MYB/MYBL1 alteration: report of 2 cases. Neuroradiol J 2023; 36:232-235. [PMID: 36074655 PMCID: PMC10034699 DOI: 10.1177/19714009221126015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
2016 World Health Organization (WHO) Classification of Tumors of the Central Nervous System (CNS) has shown how molecular features can impact the classification of brain tumors. The continued combination of molecular features with histopathology has led to distinguish tumors with similar histopathologic features but distinct clinical prognosis. The 2021 revised 5. edition of the WHO classification further includes molecular features for CNS tumor categorization including MYB/MYBL1 altered diffuse astrocytoma which is a newly recognized type of low-grade pediatric-type brain tumor. We discuss imaging features of two pediatric-type low-grade gliomas with MYB/MYBL1-mutation that encountered at our institution.
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Affiliation(s)
| | - Bharath Rama
- University of Virginia, Charlottesville, VA, USA
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Pantazopoulos T, Leventakou D, Koufopoulos N, Pouliakis A, Economopoulou P, Glava C, Tzardi M, Kafiri G, Kittas C, Korkolopoulou P, Arapantoni-Dadioti P, Sotiriou H, Filippidis T, Maragoudakis P, Giotakis I, Panayiotides IG, Psyrri A, Delides A. Significance of MYB and NTRK Expression in Head and Neck Adenoid Cystic Carcinoma. Anticancer Res 2023; 43:1709-1717. [PMID: 36974793 DOI: 10.21873/anticanres.16323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/13/2023] [Accepted: 02/14/2023] [Indexed: 03/29/2023]
Abstract
BACKGROUND/AIM Adenoid cystic carcinoma (ACC) is an aggressive neoplasm even though it has low-grade histological appearance and slow growth. The aim of this study was to identify the immunohistochemical and molecular characteristics of ACC, as well as their correlation with the clinical course of patients. PATIENTS AND METHODS This is a retrospective multicenter analysis. We included 50 patients diagnosed with ACC in the head and neck between 2000 and 2021. The expression of MYB proto-oncogene transcription factor (MYB), neurotrophic tyrosine kinase receptor (NTRK), human epidermal receptor-2 (HER-2), and Ki-67 was examined through immunohistochemistry (IHC) and fluorescence in situ hybridization (FISH). We also performed a clinical follow-up of the patients. RESULTS The median age of the patients was 58.5 years; moreover, 54% of the patients were male. Compared with female patients, male patients were at a higher risk of both recurrence and death. No HER-2-positive cases were revealed. MYB expression was positive in 28 (56%) cases. However, MYB expression did not significantly affect survival. NTRK expression was positive in eight (16%) cases. NTRK-positive patients had worse overall survival (OS) than NTRK-negative patients (p=0.0246). Additionally, the percentage of NTRK-stained cells was negatively correlated with disease-free survival (p=0.0016) and OS (p=0.0027). CONCLUSION There was no correlation between MYB positivity and survival. Contrarily, NTRK-positive patients had worse survival, indicating that NTRK is a negative prognostic factor. Tropomyosin receptor kinase inhibitors can be used to treat these patients. Furthermore, MYB-targeted inhibitors are promising therapeutic agents.
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Affiliation(s)
- Theodoros Pantazopoulos
- 2 Department of Otolaryngology, "Attikon" University Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece;
| | - Danai Leventakou
- 2 Department of Pathology, "Attikon" University Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Nektarios Koufopoulos
- 2 Department of Pathology, "Attikon" University Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Abraham Pouliakis
- 2 Department of Pathology, "Attikon" University Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Panagiota Economopoulou
- Department of Internal Medicine, Section of Medical Oncology, "Attikon" University Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Chryssoula Glava
- Department of Pathology, Korgialenio-Benakio Hellenic Red Cross General Hospital, Athens, Greece
| | - Maria Tzardi
- Department of Pathology, University General Hospital of Heraklion, Medical School, University of Crete, Heraklion, Greece
| | - Georgia Kafiri
- Department of Pathology, Hippokration General Hospital, Athens, Greece
| | - Christos Kittas
- Department of Pathology, Bioiatriki Healthcare Group, Athens, Greece
| | - Penelope Korkolopoulou
- 1 Department of Pathology, Laikon General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | | | - Helen Sotiriou
- Department of Pathology, Saint Panteleimon General State Hospital, Nikea, Greece
| | | | - Pavlos Maragoudakis
- 2 Department of Otolaryngology, "Attikon" University Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Ioannis Giotakis
- 2 Department of Otolaryngology, "Attikon" University Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Ioannis G Panayiotides
- 2 Department of Pathology, "Attikon" University Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Amanda Psyrri
- Department of Internal Medicine, Section of Medical Oncology, "Attikon" University Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Alexandros Delides
- 2 Department of Otolaryngology, "Attikon" University Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
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