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Duman E, Özmen Ö, Kul S. Profiling several key milk miRNAs and analysing their signalling pathways in dairy sheep breeds during peak and late lactation. Vet Med Sci 2024; 10:e1505. [PMID: 38924289 PMCID: PMC11198020 DOI: 10.1002/vms3.1505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 04/23/2024] [Accepted: 05/24/2024] [Indexed: 06/28/2024] Open
Abstract
BACKGROUND The comprehensive understanding of microRNAs (miRNAs) in sheep milk during various lactation periods and their impact on milk yield and composition remains limited. OBJECTIVES This study aimed to investigate the expression patterns of four highly expressed miRNAs in sheep milk and their association with milk composition and yield parameters during peak and late lactation stages. METHODS A total of 40 healthy 4-year-old Akkaraman (n = 20) and Awassi (n = 20) ewes registered with the Ministry of Agriculture and Forestry of the Republic of Türkiye were used in the present study. For miRNA isolation from milk, the Qiagen miRNeasy Serum/Plasma Advanced Kit was utilised following the manufacturer's instructions. The expression levels of miRNAs were assessed using Qiagen miRNA PCR Assays. RESULTS The significant fold changes in the expression levels of oar-miR-30a-5p, oar-miR-148a and oar-miR-181a were observed between peak and late lactation periods in the Awassi sheep breed. Conversely, only oar-miR-30a-5p and oar-miR-148a exhibited statistically significant changes in the Akkaraman sheep breed during the same lactation periods. Furthermore, oar-miR-21-5p demonstrated a significant fold change exclusively in peak lactation compared to Akkaraman and Awassi ewes. CONCLUSIONS The findings suggest that the expression of the analysed miRNAs is influenced by both the lactation stage and different sheep breeds. This study offers valuable insights into the relationship between key miRNA expressions in sheep milk and milk composition and yield parameters during peak and late lactation, contributing to the existing knowledge in this field.
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Affiliation(s)
- Esra Duman
- Faculty of Medicine, Institute of Molecular Gastroenterology and HepatologyKocaeli UniversityKocaeliTürkiye
| | - Özge Özmen
- Faculty of Veterinary Medicine, Department of GeneticsAnkara UniversityAnkaraTürkiye
| | - Selim Kul
- Faculty of Veterinary Medicine, Department of Animal BreedingYozgat Bozok UniversityYozgatTürkiye
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2
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Le Guillou S, Ciobotaru C, Laubier J, Castille J, Aujean E, Hue-Beauvais C, Cherbuy C, Liuu S, Henry C, David A, Jaffrezic F, Laloë D, Charlier M, Alexandre-Gouabau MC, Le Provost F. Specific Milk Composition of miR-30b Transgenic Mice Associated with Early Duodenum Maturation in Offspring with Lasting Consequences for Growth. J Nutr 2023; 153:2808-2826. [PMID: 37543213 DOI: 10.1016/j.tjnut.2023.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 07/18/2023] [Accepted: 08/01/2023] [Indexed: 08/07/2023] Open
Abstract
BACKGROUND Milk composition is complex and includes numerous components essential for offspring growth and development. In addition to the high abundance of miR-30b microRNA, milk produced by the transgenic mouse model of miR-30b-mammary deregulation displays a significantly altered fatty acid profile. Moreover, wild-type adopted pups fed miR-30b milk present an early growth defect. OBJECTIVE This study aimed to investigate the consequences of miR-30b milk feeding on the duodenal development of wild-type neonates, a prime target of suckled milk, along with comprehensive milk phenotyping. METHODS The duodenums of wild-type pups fed miR-30b milk were extensively characterized at postnatal day (PND)-5, PND-6, and PND-15 using histological, transcriptomic, proteomic, and duodenal permeability analyses and compared with those of pups fed wild-type milk. Milk of miR-30b foster dams collected at mid-lactation was extensively analyzed using proteomic, metabolomic, and lipidomic approaches and hormonal immunoassays. RESULTS At PND-5, wild-type pups fed miR-30b milk showed maturation of their duodenum with 1.5-fold (P < 0.05) and 1.3-fold (P < 0.10) increased expression of Claudin-3 and Claudin-4, respectively, and changes in 8 duodenal proteins (P < 0.10), with an earlier reduction in paracellular and transcellular permeability (183 ng/mL fluorescein sulfonic acid [FSA] and 12 ng/mL horseradish peroxidase [HRP], respectively, compared with 5700 ng/mL FSA and 90 ng/mL HRP in wild-type; P < 0.001). Compared with wild-type milk, miR-30b milk displayed an increase in total lipid (219 g/L compared with 151 g/L; P < 0.05), ceramide (17.6 μM compared with 6.9 μM; P < 0.05), and sphingomyelin concentrations (163.7 μM compared with 76.3 μM; P < 0.05); overexpression of 9 proteins involved in the gut barrier (P < 0.1); and higher insulin and leptin concentrations (1.88 ng/mL and 2.04 ng/mL, respectively, compared with 0.79 ng/mL and 1.06 ng/mL; P < 0.01). CONCLUSIONS miR-30b milk displays significant changes in bioactive components associated with neonatal duodenal integrity and maturation, which could be involved in the earlier intestinal closure phenotype of the wild-type pups associated with a lower growth rate.
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Affiliation(s)
| | - Céline Ciobotaru
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, Jouy-en-Josas, France
| | - Johann Laubier
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, Jouy-en-Josas, France
| | - Johan Castille
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, Jouy-en-Josas, France
| | - Etienne Aujean
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, Jouy-en-Josas, France
| | - Cathy Hue-Beauvais
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, Jouy-en-Josas, France
| | - Claire Cherbuy
- Université Paris-Saclay, INRAE, MICALIS Institute, Jouy-en-Josas, France
| | - Sophie Liuu
- Université Paris-Saclay, INRAE, AgroParisTech, MICALIS Institute, PAPPSO, Jouy-en-Josas, France
| | - Céline Henry
- Université Paris-Saclay, INRAE, AgroParisTech, MICALIS Institute, PAPPSO, Jouy-en-Josas, France
| | - Agnès David
- Nantes Université, CRNH-OUEST, INRAE, UMR 1280, PhAN, Nantes, France
| | - Florence Jaffrezic
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, Jouy-en-Josas, France
| | - Denis Laloë
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, Jouy-en-Josas, France
| | - Madia Charlier
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, Jouy-en-Josas, France
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3
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MicroRNAs: A Link between Mammary Gland Development and Breast Cancer. Int J Mol Sci 2022; 23:ijms232415978. [PMID: 36555616 PMCID: PMC9786715 DOI: 10.3390/ijms232415978] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/13/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Breast cancer is among the most common cancers in women, second to skin cancer. Mammary gland development can influence breast cancer development in later life. Processes such as proliferation, invasion, and migration during mammary gland development can often mirror processes found in breast cancer. MicroRNAs (miRNAs), small, non-coding RNAs, can repress post-transcriptional RNA expression and can regulate up to 80% of all genes. Expression of miRNAs play a key role in mammary gland development, and aberrant expression can initiate or promote breast cancer. Here, we review the role of miRNAs in mammary development and breast cancer, and potential parallel roles. A total of 32 miRNAs were found to be expressed in both mammary gland development and breast cancer. These miRNAs are involved in proliferation, metastasis, invasion, and apoptosis in both processes. Some miRNAs were found to have contradictory roles, possibly due to their ability to target many genes at once. Investigation of miRNAs and their role in mammary gland development may inform about their role in breast cancer. In particular, by studying miRNA in development, mechanisms and potential targets for breast cancer treatment may be elucidated.
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4
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Anhê GF, Bordin S. The adaptation of maternal energy metabolism to lactation and its underlying mechanisms. Mol Cell Endocrinol 2022; 553:111697. [PMID: 35690287 DOI: 10.1016/j.mce.2022.111697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 04/15/2022] [Accepted: 06/01/2022] [Indexed: 11/29/2022]
Abstract
Maternal energy metabolism undergoes a singular adaptation during lactation that allows for the caloric enrichment of milk. Changes in the mammary gland, changes in the white adipose tissue, brown adipose tissue, liver, skeletal muscles and endocrine pancreas are pivotal for this adaptation. The present review details the landmark studies describing the enzymatic modulation and the endocrine signals behind these metabolic changes. We will also update this perspective with data from recent studies showing transcriptional and post-transcriptional mechanisms that mediate the adaptation of the maternal metabolism to lactation. The present text will also bring experimental and observational data that describe the long-term consequences that short periods of lactation impose to maternal metabolism.
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Affiliation(s)
- Gabriel Forato Anhê
- Department of Translational Medicine, School of Medical Sciences, State University of Campinas, Campinas, Brazil.
| | - Silvana Bordin
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
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Raymond F, Lefebvre G, Texari L, Pruvost S, Metairon S, Cottenet G, Zollinger A, Mateescu B, Billeaud C, Picaud JC, Silva-Zolezzi I, Descombes P, Bosco N. Longitudinal Human Milk miRNA Composition over the First 3 mo of Lactation in a Cohort of Healthy Mothers Delivering Term Infants. J Nutr 2022; 152:94-106. [PMID: 34510208 DOI: 10.1093/jn/nxab282] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/12/2021] [Accepted: 07/28/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND MicroRNAs (miRNAs) are small noncoding RNAs involved in posttranscriptional regulation. miRNAs can be secreted and found in many body fluids, and although they are particularly abundant in breastmilk, their functions remain elusive. Human milk (HM) miRNAs start to raise considerable interest, but a comprehensive understanding of the repertoire and expression profiles along lactation has not been well characterized. OBJECTIVES This study aimed to characterize the longitudinal profile of HM miRNA between the second week and third month postpartum. METHODS We used a new sensitive technology to measure HM miRNAs in a cohort of 44 French mothers [mean ± SD age: 31 ± 3.5; BMI (in kg/m2) 21.8 ± 2.3] who delivered at term and provided HM samples at 3 time points (17 ± 3 d, 60 ± 3 d, and 90 ± 3 d) during follow-up visits. RESULTS We detected 685 miRNAs, of which 35 showed a high and stable expression along the lactation period analyzed. We also described for the first time a set of 11 miRNAs with a dynamic expression profile. To gain insight into the potential functional relevance of this set of miRNAs, we selected miR-3126 and miR-3184 to treat undifferentiated Caco-2 human intestinal cells and then assessed differentially expressed genes and modulation of related biological pathways. CONCLUSIONS Overall, our study provides new insights into HM miRNA composition and, to our knowledge, the first description of its longitudinal dynamics in mothers who delivered at term. Our in vitro results obtained in undifferentiated Caco-2 human intestinal cells transfected with HM miRNAs also provide further support to the hypothesized mother-to-neonate signaling role of HM miRNAs. This trial was registered at clinicaltrials.gov as NCT01894893.
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Affiliation(s)
- Frederic Raymond
- Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland
| | - Gregory Lefebvre
- Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland
| | - Lorane Texari
- Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland
| | - Solenn Pruvost
- Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland
| | - Sylviane Metairon
- Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland
| | - Geoffrey Cottenet
- Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland
| | - Alix Zollinger
- Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland
| | - Bogdan Mateescu
- Brain Research Institute, University of Zurich, Zurich, Switzerland
| | - Claude Billeaud
- Neonatology Nutrition, Lactarium Bordeaux-Marmande, Bordeaux, France
| | - Jean-Charles Picaud
- Neonatal Intensive Care Unit, University Hospital Croix Rousse, Lyon, France.,CarMeN unit, Claude Bernard University Lyon 1, 69310 Pierre Benite, France
| | | | - Patrick Descombes
- Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland
| | - Nabil Bosco
- Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland.,Nestlé Research, Singapore
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Pedrosa VB, Schenkel FS, Chen SY, Oliveira HR, Casey TM, Melka MG, Brito LF. Genomewide Association Analyses of Lactation Persistency and Milk Production Traits in Holstein Cattle Based on Imputed Whole-Genome Sequence Data. Genes (Basel) 2021; 12:genes12111830. [PMID: 34828436 PMCID: PMC8624223 DOI: 10.3390/genes12111830] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 11/13/2021] [Accepted: 11/17/2021] [Indexed: 12/22/2022] Open
Abstract
Lactation persistency and milk production are among the most economically important traits in the dairy industry. In this study, we explored the association of over 6.1 million imputed whole-genome sequence variants with lactation persistency (LP), milk yield (MILK), fat yield (FAT), fat percentage (FAT%), protein yield (PROT), and protein percentage (PROT%) in North American Holstein cattle. We identified 49, 3991, 2607, 4459, 805, and 5519 SNPs significantly associated with LP, MILK, FAT, FAT%, PROT, and PROT%, respectively. Various known associations were confirmed while several novel candidate genes were also revealed, including ARHGAP35, NPAS1, TMEM160, ZC3H4, SAE1, ZMIZ1, PPIF, LDB2, ABI3, SERPINB6, and SERPINB9 for LP; NIM1K, ZNF131, GABRG1, GABRA2, DCHS1, and SPIDR for MILK; NR6A1, OLFML2A, EXT2, POLD1, GOT1, and ETV6 for FAT; DPP6, LRRC26, and the KCN gene family for FAT%; CDC14A, RTCA, HSTN, and ODAM for PROT; and HERC3, HERC5, LALBA, CCL28, and NEURL1 for PROT%. Most of these genes are involved in relevant gene ontology (GO) terms such as fatty acid homeostasis, transporter regulator activity, response to progesterone and estradiol, response to steroid hormones, and lactation. The significant genomic regions found contribute to a better understanding of the molecular mechanisms related to LP and milk production in North American Holstein cattle.
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Affiliation(s)
- Victor B. Pedrosa
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA; (V.B.P.); (S.-Y.C.); (H.R.O.); (T.M.C.)
- Department of Animal Sciences, State University of Ponta Grossa, Ponta Grossa 84030-900, Brazil
| | - Flavio S. Schenkel
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON N1G2W1, Canada;
| | - Shi-Yi Chen
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA; (V.B.P.); (S.-Y.C.); (H.R.O.); (T.M.C.)
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science & Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Hinayah R. Oliveira
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA; (V.B.P.); (S.-Y.C.); (H.R.O.); (T.M.C.)
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON N1G2W1, Canada;
| | - Theresa M. Casey
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA; (V.B.P.); (S.-Y.C.); (H.R.O.); (T.M.C.)
| | - Melkaye G. Melka
- Department of Animal and Food Science, University of Wisconsin River Falls, River Falls, WI 54022, USA;
| | - Luiz F. Brito
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA; (V.B.P.); (S.-Y.C.); (H.R.O.); (T.M.C.)
- Correspondence:
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7
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In silico identification of variations in microRNAs with a potential impact on dairy traits using whole ruminant genome SNP datasets. Sci Rep 2021; 11:19580. [PMID: 34599210 PMCID: PMC8486775 DOI: 10.1038/s41598-021-98639-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 09/03/2021] [Indexed: 11/09/2022] Open
Abstract
MicroRNAs are small noncoding RNAs that have important roles in the lactation process and milk biosynthesis. Some polymorphisms have been studied in various livestock species from the perspective of pathology or production traits. To target variants that could be the causal variants of dairy traits, genetic variants of microRNAs expressed in the mammary gland or present in milk and localized in dairy quantitative trait loci (QTLs) were investigated in bovine, caprine, and ovine species. In this study, a total of 59,124 (out of 28 millions), 13,427 (out of 87 millions), and 4761 (out of 38 millions) genetic variants in microRNAs expressed in the mammary gland or present in milk were identified in bovine, caprine, and ovine species, respectively. A total of 4679 of these detected bovine genetic variants are located in dairy QTLs. In caprine species, 127 genetic variants are localized in dairy QTLs. In ovine species, no genetic variant was identified in dairy QTLs. This study leads to the detection of microRNA genetic variants of interest in the context of dairy production, taking advantage of whole genome data to identify microRNA genetic variants expressed in the mammary gland and localized in dairy QTLs.
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8
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Ivanova E, Le Guillou S, Hue-Beauvais C, Le Provost F. Epigenetics: New Insights into Mammary Gland Biology. Genes (Basel) 2021; 12:genes12020231. [PMID: 33562534 PMCID: PMC7914701 DOI: 10.3390/genes12020231] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 01/23/2021] [Accepted: 01/28/2021] [Indexed: 12/14/2022] Open
Abstract
The mammary gland undergoes important anatomical and physiological changes from embryogenesis through puberty, pregnancy, lactation and involution. These steps are under the control of a complex network of molecular factors, in which epigenetic mechanisms play a role that is increasingly well described. Recently, studies investigating epigenetic modifications and their impacts on gene expression in the mammary gland have been performed at different physiological stages and in different mammary cell types. This has led to the establishment of a role for epigenetic marks in milk component biosynthesis. This review aims to summarize the available knowledge regarding the involvement of the four main molecular mechanisms in epigenetics: DNA methylation, histone modifications, polycomb protein activity and non-coding RNA functions.
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9
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Cui X, Zhang S, Zhang Q, Guo X, Wu C, Yao M, Sun D. Comprehensive MicroRNA Expression Profile of the Mammary Gland in Lactating Dairy Cows With Extremely Different Milk Protein and Fat Percentages. Front Genet 2020; 11:548268. [PMID: 33343617 PMCID: PMC7744623 DOI: 10.3389/fgene.2020.548268] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 11/05/2020] [Indexed: 12/27/2022] Open
Abstract
A total of 31 differentially expressed genes in the mammary glands were identified in our previous study using RNA sequencing (RNA-Seq), for lactating cows with extremely high and low milk protein and fat percentages. To determine the regulation of milk composition traits, we herein investigated the expression profiles of microRNA (miRNA) using small RNA sequencing based on the same samples as in the previous RNA-Seq experiment. A total of 497 known miRNAs (miRBase, release 22.1) and 49 novel miRNAs among the reads were identified. Among these miRNAs, 71 were found differentially expressed between the high and low groups (p < 0.05, q < 0.05). Furthermore, 21 of the differentially expressed genes reported in our previous RNA-Seq study were predicted as target genes for some of the 71 miRNAs. Gene ontology and KEGG pathway analyses showed that these targets were enriched for functions such as metabolism of protein and fat, and development of mammary gland, which indicating the critical role of these miRNAs in regulating the formation of milk protein and fat. With dual luciferase report assay, we further validated the regulatory role of 7 differentially expressed miRNAs through interaction with the specific sequences in 3'UTR of the targets. In conclusion, the current study investigated the complexity of the mammary gland transcriptome in dairy cattle using small RNA-seq. Comprehensive analysis of differential miRNAs expression and the data from previous study RNA-seq provided the opportunity to identify the key candidate genes for milk composition traits.
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Affiliation(s)
- Xiaogang Cui
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China.,Key Lab of Medical Molecular Cell Biology of Shanxi Province, Institutes of Biomedical Sciences, Shanxi University, Taiyuan, China
| | - Shengli Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Qin Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Xiangyu Guo
- Center for Quantitative Genetics and Genomics, Aarhus University, Tjele, Denmark
| | - Changxin Wu
- Key Lab of Medical Molecular Cell Biology of Shanxi Province, Institutes of Biomedical Sciences, Shanxi University, Taiyuan, China
| | - Mingze Yao
- Key Lab of Medical Molecular Cell Biology of Shanxi Province, Institutes of Biomedical Sciences, Shanxi University, Taiyuan, China
| | - Dongxiao Sun
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
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10
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Wang J, Hao Z, Hu J, Liu X, Li S, Wang J, Shen J, Song Y, Ke N, Luo Y. Small RNA deep sequencing reveals the expressions of microRNAs in ovine mammary gland development at peak-lactation and during the non-lactating period. Genomics 2020; 113:637-646. [PMID: 33007397 DOI: 10.1016/j.ygeno.2020.09.060] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 09/08/2020] [Accepted: 09/28/2020] [Indexed: 12/15/2022]
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs that are involved in mammary gland development and lactation in livestock. Little is known about the roles of miRNAs in ovine mammary gland development, hence in this study the expression profiles of miRNAs of the mammary gland tissues of ewes at peak-lactation and during the non-lactating period were investigated using RNA sequencing. A total of 147 mature miRNAs were expressed in the two periods. Compared with peak-lactation, eight miRNAs in the non-lactating ewe mammary gland were significantly up-regulated, whereas fifteen miRNAs were down-regulated. A KEGG analysis revealed that the target genes of the up-regulated miRNAs were significantly enriched in lysosome, Wnt and MAPK signaling pathways, while the target genes of down-regulated miRNAs were significantly enriched in the PI3K-Akt signaling pathway, protein processing in endoplasmic reticulum and axon guidance. These results suggest that further study of the differentially expressed miRNAs could provide a better understanding of the molecular mechanisms of mammary development and lactation in sheep.
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Affiliation(s)
- Jiqing Wang
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China.
| | - Zhiyun Hao
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Jiang Hu
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Xiu Liu
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Shaobin Li
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Jianqing Wang
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Jiyuan Shen
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Yize Song
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Na Ke
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Yuzhu Luo
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China.
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11
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Zhong X, Chen Y, Yao C, Xu L, Peng Y, Yang Q, Zhao M, Guo X. MicroRNA-30b participates in the pathological process of hyperuricemia by regulating interleukin-6 receptor. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2020; 39:1162-1178. [PMID: 32643523 DOI: 10.1080/15257770.2020.1780439] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The present study aimed to examine the expression of hyperuricemia (HUA)-related factors in the body fluids of HUA patients and in renal tissues and body fluids of HUA mice to elucidate the underlying mechanism of HUA and provide theoretical basis for the diagnosis, prevention and treatment of this disease. A total of 51 HUA patients (HUA group), and 36 healthy subjects (control group) were included in the present study. The peripheral blood and urine were collected from all patients and healthy subjects. A total of 20 male Kunming mice were used to construct HUA model, and another 20 mice were used as controls. The kidney tissues, peripheral blood and urine were collected from all mice. ELISA was performed to determine the levels of interleukin-6 receptor (IL-6R) proteins in the serum and urine of human or mice, while western blotting was employed to determine the protein expression in the kidney tissues of mice. Quantitative real-time polymerase chain reaction was used to measure the expression of mRNA and miR-30b in all sample types. Dual luciferase reporter assay was performed to identify the direct interaction between 3'-untranslated region of IL-6R mRNA and miR-30b. The expression of IL-6R mRNA and protein was increased in serum and urine of HUA patients, while the expression of miR-30b was reduced in HUA patients when compared with healthy subjects. The contents of uric acid, urea nitrogen and creatinine in the blood of HUA mice model were significantly elevated. Similarly, the expression of IL-6R mRNA and protein was increased in kidney, serum and urine of HUA mice model, while the expression of miR-30b was reduced in kidney tissues, serum and urine of HUA mice model. Dual luciferase reporter assay showed that miR-30b was able to bind with 3'-UTR seed region of IL-6R mRNA to regulate its expression. These findings demonstrated that the expression of IL-6R in patients and mouse with HUA is elevated, which is related with the down-regulation of miR-30b. Therefore, miR-30b might participate in the pathological process of HUA by regulating IL-6R.
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Affiliation(s)
- Xiaowu Zhong
- Department of Clinical Laboratory, Affiliated Hospital of North Sichuan Medical College, Nanchong, P.R. China.,Department of Laboratory Medicine, North Sichuan Medical College, Nanchong, P.R. China.,Translational Medicine Research Center, North Sichuan Medical College, Nanchong, P.R. China
| | - Ying Chen
- Department of Clinical Laboratory, Affiliated Hospital of North Sichuan Medical College, Nanchong, P.R. China
| | - Chengjiao Yao
- Department of Rheumatology and Immunology, Affiliated Hospital of North Sichuan Medical College, Nanchong, P.R. China
| | - Lei Xu
- Translational Medicine Research Center, North Sichuan Medical College, Nanchong, P.R. China
| | - Yuanhong Peng
- Department of Rheumatology and Immunology, Affiliated Hospital of North Sichuan Medical College, Nanchong, P.R. China
| | - Qibin Yang
- Department of Rheumatology and Immunology, Affiliated Hospital of North Sichuan Medical College, Nanchong, P.R. China
| | - Mingcai Zhao
- Department of Clinical Laboratory, Central Hospital of Suining, Suining, P.R. China
| | - Xiaolan Guo
- Department of Clinical Laboratory, Affiliated Hospital of North Sichuan Medical College, Nanchong, P.R. China.,Department of Laboratory Medicine, North Sichuan Medical College, Nanchong, P.R. China.,Translational Medicine Research Center, North Sichuan Medical College, Nanchong, P.R. China
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12
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Xuan R, Chao T, Wang A, Zhang F, Sun P, Liu S, Guo M, Wang G, Ji Z, Wang J, Cheng M. Characterization of microRNA profiles in the mammary gland tissue of dairy goats at the late lactation, dry period and late gestation stages. PLoS One 2020; 15:e0234427. [PMID: 32511270 PMCID: PMC7279595 DOI: 10.1371/journal.pone.0234427] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 05/25/2020] [Indexed: 01/09/2023] Open
Abstract
MicroRNAs (miRNAs) play an important role in regulating mammary gland development and lactation. We previously analyzed miRNA expression profiles in Laoshan dairy goat mammary glands at the early (20 d postpartum), peak (90 d postpartum) and late lactation (210 d postpartum) stages. To further enrich and clarify the miRNA expression profiles during the lactation physiological cycle, we sequenced miRNAs in the mammary gland tissues of Laoshan dairy goats at three newly selected stages: the late lactation (240 d postpartum), dry period (300 d postpartum) and late gestation (140 d after mating) stages. We obtained 4038 miRNAs and 385 important miRNA families, including mir-10, let-7 and mir-9. We also identified 754 differentially expressed miRNAs in the mammary gland tissue at the 3 different stages and 6 groups of miRNA clusters that had unique expression patterns. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses showed that GO terms such as mammary gland development (GO:0030879) and mammary gland morphogenesis (GO:0060443) and important signaling pathways, including the insulin signaling pathway (chx04910), hippo signaling pathway (chx04390) and estrogen signaling pathway (chx04915), were enriched. We screened miRNAs and potential target genes that may be involved in the regulation of lactation, mammary gland growth and differentiation, cell apoptosis, and substance transport and synthesis and detected the expression patterns of important genes at the three stages. These miRNAs and critical target genes may be important factors for mammary gland development and lactation regulation and potentially valuable molecular markers, which may provide a theoretical reference for further investigation of mammary gland physiology.
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Affiliation(s)
- Rong Xuan
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong Province, P.R. China
| | - Tianle Chao
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong Province, P.R. China
| | - Aili Wang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong Province, P.R. China
| | - Fuhong Zhang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong Province, P.R. China
| | - Ping Sun
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong Province, P.R. China
| | - Shuang Liu
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong Province, P.R. China
| | - Maosen Guo
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong Province, P.R. China
| | - Guizhi Wang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong Province, P.R. China
| | - Zhibin Ji
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong Province, P.R. China
| | - Jianmin Wang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an, Shandong Province, P.R. China
| | - Ming Cheng
- Qingdao Research Institute of Husbandry and Veterinary, Qingdao, Shandong Province, P.R. China
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13
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Taibi A, Lin Z, Tsao R, Thompson LU, Comelli EM. Effects of Flaxseed and Its Components on Mammary Gland MiRNome: Identification of Potential Biomarkers to Prevent Breast Cancer Development. Nutrients 2019; 11:nu11112656. [PMID: 31689992 PMCID: PMC6893416 DOI: 10.3390/nu11112656] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 11/01/2019] [Indexed: 12/15/2022] Open
Abstract
Breast cancer is the most common cancer among women worldwide. We previously showed that early-life exposure to flaxseed (FS) or its components, FS oil (FSO) and secoisolariciresinol diglucoside (SDG), affects the mammary gland (MG) and is associated with the reduction of breast cancer risk during adulthood. However, the underlying mechanisms are not understood. This study aimed to investigate the effect of FS, FSO, and SDG on the MG miRNA signature at a late stage of development. Female C57BL/6 mice, 4–5 weeks of age, were randomized into four groups to receive: (i) basal AIN-93G, (ii) 10% FS, (iii) 3.67% FSO, or (iv) 0.15% SDG. After 21 days, the mice were sacrificed and MG miRNAs were profiled. Diet-specific MG miRNA signatures were identified. Deregulated miRNAs were associated with breast cancer and targeted genes involved in MG development, growth, and cancer. The study allowed for the identification of potential biomarkers or novel therapeutic targets to prevent and/or reduce the risk of breast cancer.
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Affiliation(s)
- Amel Taibi
- Department of Nutritional Sciences, University of Toronto, Toronto, ON M5S 1A8, Canada.
| | - Zhen Lin
- Department of Nutritional Sciences, University of Toronto, Toronto, ON M5S 1A8, Canada.
| | - Rong Tsao
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada, West Guelph, ON N1G 5C9, Canada.
| | - Lilian U Thompson
- Department of Nutritional Sciences, University of Toronto, Toronto, ON M5S 1A8, Canada.
| | - Elena M Comelli
- Department of Nutritional Sciences, University of Toronto, Toronto, ON M5S 1A8, Canada.
- Joannah and Brian Lawson Centre for Child Nutrition, University of Toronto, Toronto, ON M5S 1A8, Canada.
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14
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Ylioja CM, Rolf MM, Mamedova LK, Bradford BJ. Associations between body condition score at parturition and microRNA profile in colostrum of dairy cows as evaluated by paired mapping programs. J Dairy Sci 2019; 102:11609-11621. [PMID: 31548065 DOI: 10.3168/jds.2019-16675] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Accepted: 08/03/2019] [Indexed: 12/18/2022]
Abstract
MicroRNA (miRNA) are abundant in milk, and likely have regulatory activity involving lactation and immunity. The objective of this study was to determine the miRNA profile in colostrum of overconditioned cows compared with cows of more moderate body condition score (BCS) at calving. Multiparous cows with either high (≥4.0 on a scale of 1 to 5; n = 7) or moderate BCS (2.75 to 3.50; n = 9) in the week before parturition were selected from a commercial dairy herd. Blood and colostrum were sampled within 24 h after calving. Blood serum was analyzed for free fatty acid (FFA) concentration. MicroRNA was isolated from colostrum samples after removing milk fat and cells. MicroRNA were sequenced, and reads were mapped to the bovine genome and to the existing database of miRNA at miRBase.org. Two programs, Oasis 2.0 and miRDeep2, were employed in parallel for read alignment, and analysis of miRNA count data was performed using DESeq2. Identification of differentially expressed miRNA from DESeq2 was not affected by the differences in miRNA detected by the 2 mapping programs. Most abundant miRNA included miR-30a, miR-148a, miR-181a, let-7f, miR-26a, miR-21, miR-22, and miR-92a. Large-scale shifts in miRNA profile were not observed; however, colostrum of cows with high BCS contained less miR-486, which has been linked with altered glucose metabolism. Colostrum from cows with elevated serum FFA contained less miR-885, which may be connected to hepatic function during the transition period. Potential functions of abundant miRNA suggest involvement in development and maintenance of cellular function in the mammary gland, with the additional possibility of influencing neonatal tissue and immune system development.
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Affiliation(s)
- C M Ylioja
- Department of Animal Sciences and Industry, Kansas State University, Manhattan 66506
| | - M M Rolf
- Department of Animal Sciences and Industry, Kansas State University, Manhattan 66506
| | - L K Mamedova
- Department of Animal Sciences and Industry, Kansas State University, Manhattan 66506
| | - B J Bradford
- Department of Animal Sciences and Industry, Kansas State University, Manhattan 66506.
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15
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Billa PA, Faulconnier Y, Ye T, Chervet M, Le Provost F, Pires JAA, Leroux C. Deep RNA-Seq reveals miRNome differences in mammary tissue of lactating Holstein and Montbéliarde cows. BMC Genomics 2019; 20:621. [PMID: 31362707 PMCID: PMC6668132 DOI: 10.1186/s12864-019-5987-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 07/19/2019] [Indexed: 02/06/2023] Open
Abstract
Background Genetic polymorphisms are known to influence milk production and composition. However, the genomic mechanisms involved in the genetic regulation of milk component synthesis are not completely understood. MicroRNAs (miRNAs) regulate gene expression. Previous research suggests that the high developmental potential of the mammary gland may depend in part on a specific miRNA expression pattern. The objective of the present study was to compare the mammary gland miRNomes of two dairy cow breeds, Holstein and Montbéliarde, which have different mammogenic potentials that are related to differences in dairy performance. Results Milk, fat, protein, and lactose yields were lower in Montbéliarde cows than in Holstein cows. We detected 754 distinct miRNAs in the mammary glands of Holstein (n = 5) and Montbéliarde (n = 6) midlactating cows using RNA-Seq technology, among which 738 were known and 16 were predicted miRNAs. The 25 most abundant miRNAs accounted for 90.6% of the total reads. The comparison of their abundances in the mammary glands of Holstein versus Montbéliarde cows identified 22 differentially expressed miRNAs (Padj ≤ 0.05). Among them, 11 presented a fold change ≥2, and 2 (miR-100 and miR-146b) were highly expressed. Among the most abundant miRNAs, miR-186 is known to inhibit cell proliferation and epithelial-to-mesenchymal transition. Data mining showed that 17 differentially expressed miRNAs with more than 20 reads were involved in the regulation of mammary gland plasticity. Several of them may potentially target mRNAs involved in signaling pathways (such as mTOR) and lipid metabolism, thereby indicating that they could influence milk composition. Conclusion We found differences in the mammary gland miRNomes of two dairy cattle breeds. These differences suggest a potential role for miRNAs in mammary gland plasticity and milk component synthesis, both of which are related to milk production and composition. Further research is warranted on the genetic regulation of miRNAs and their role in milk synthesis. Electronic supplementary material The online version of this article (10.1186/s12864-019-5987-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- P A Billa
- Institut National de la Recherche Agronomique (INRA), Université Clermont Auvergne, VetAgro Sup, UMR Herbivores, UMR1213 Herbivores, F-63122, Saint-Genès-Champanelle, France
| | - Y Faulconnier
- Institut National de la Recherche Agronomique (INRA), Université Clermont Auvergne, VetAgro Sup, UMR Herbivores, UMR1213 Herbivores, F-63122, Saint-Genès-Champanelle, France
| | - T Ye
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Centre National de la Recherche Scientifique, UMR7104, Institut National de la Santé et de la Recherche Médicale, U964, Université de Strasbourg, 67404, Illkirch, France
| | - M Chervet
- Department of Food Science & Technology, University of California Davis, Davis, CA, USA
| | - F Le Provost
- GABI, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, F-78352, France
| | - J A A Pires
- Institut National de la Recherche Agronomique (INRA), Université Clermont Auvergne, VetAgro Sup, UMR Herbivores, UMR1213 Herbivores, F-63122, Saint-Genès-Champanelle, France
| | - C Leroux
- Institut National de la Recherche Agronomique (INRA), Université Clermont Auvergne, VetAgro Sup, UMR Herbivores, UMR1213 Herbivores, F-63122, Saint-Genès-Champanelle, France. .,Department of Food Science & Technology, University of California Davis, Davis, CA, USA.
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16
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Zhang N, Zhang Q, Yang W, Miao L, Wang N, Wei S, Ge J, Li X, Wu J. Decreased expression of microRNA-30b promotes the development of pulpitis by upregulating the expression of interleukin-6 receptor. Exp Ther Med 2019; 17:3233-3238. [PMID: 30936998 DOI: 10.3892/etm.2019.7280] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Accepted: 05/11/2018] [Indexed: 02/07/2023] Open
Abstract
The present study aimed to examine the expression of interleukin-6 receptor (IL-6R) mRNA and protein in pulp tissues, blood and saliva from patients with pulpitis. It also investigated the association between IL-6R and microRNA (miR)-30b, as well as their effects on pulpitis. A total of 28 patients with pulpitis were recruited into the experimental group and 16 subjects with no pulpitis who also underwent tooth extraction were recruited into the control group. Pulp tissues, plasma and saliva were collected from all participants. Reverse transcription-quantitative polymerase chain reaction was used to determine the expression of IL-6R mRNA and miR-30b in all sample types. Western blot analysis was performed to examine the protein expression of IL-6R in pulp tissues, while ELISA was used to determine the contents of IL-6R protein in the plasma and saliva samples. A dual luciferase reporter assay was performed to verify the interactions between IL-6R and miR-30b. The expression of IL-6R mRNA in the pulp tissues, plasma and saliva was significantly increased in patients with pulpitis compared with the control group. Similarly, the IL-6R protein expression in the samples from patients with pulpitis were also significantly increased compared with the control group. Conversely, the expression of miR-30b was significantly reduced in the samples from patients with pulpitis compared with the control group. The dual luciferase reporter assay revealed that miR-30b may bind with the 3'-untranslated seed region of IL-6R mRNA to regulate its expression. The present study demonstrated that the upregulated expression of IL-6R in pulp tissues, plasma and saliva from patients with pulpitis was associated with the downregulation of miR-30b expression. In addition, miR-30b may affect the progression of pulpitis via IL-6R and may be a potential genetic marker for the diagnosis of pulpitis.
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Affiliation(s)
- Ning Zhang
- Department of Endodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210000, P.R. China
| | - Qingwei Zhang
- Department of Anesthesiology, Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Weidong Yang
- Department of Endodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210000, P.R. China
| | - Leiying Miao
- Department of Endodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210000, P.R. China
| | - Nannan Wang
- Department of Endodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210000, P.R. China
| | - Shanjing Wei
- Department of Endodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210000, P.R. China
| | - Jiuyu Ge
- Department of Endodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210000, P.R. China
| | - Xin Li
- Department of Endodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210000, P.R. China
| | - Juan Wu
- Department of Endodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210000, P.R. China
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Le Guillou S, Laubier J, Péchoux C, Aujean E, Castille J, Leroux C, Le Provost F. Defects of the endoplasmic reticulum and changes to lipid droplet size in mammary epithelial cells due to miR-30b-5p overexpression are correlated to a reduction in Atlastin 2 expression. Biochem Biophys Res Commun 2019; 512:283-288. [PMID: 30879769 DOI: 10.1016/j.bbrc.2019.03.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 03/03/2019] [Indexed: 10/27/2022]
Abstract
During lactation, mammary epithelial cells secrete fat in the form of milk fat globules that originate from intracellular lipid droplets. These droplets may form de novo from the endoplasmic reticulum or be derived from existing lipid droplets; they then either grow because enzymes of triacylglycerol synthesis relocate from the reticulum to their surface, or due to fusion and fission with other droplets. The overexpression of miR-30b-5p in the developing mouse mammary gland impairs lactation, which includes an increase in lipid droplet size. This study was performed to understand the origin of this defect affecting lipid droplets observed in transgenic mice. Electron microscopy analyses revealed a fragmented and discontinued tubular network of endoplasmic reticulum in the mammary epithelial cells of transgenic mice. The milk fatty acid composition was modified, with lower levels of medium-chain saturated fatty acids and a proportional increase in long-chain monounsaturated fatty acids in transgenic versus wild-type mice. Further, investigations of microRNA targets revealed a significant downregulation of ATLASTIN 2 (a GTPase described as playing a key role in lipid droplet formation) due to miR-30b-5p overexpression. Our results suggest that the increase in lipid droplet size observed in the mammary epithelial cells of transgenic mice might result from changes to lipid droplet formation and secretion because of direct modifications to Atl2 expression and indirect changes to endoplasmic reticulum morphology resulting from the overexpression of miR-30b-5p.
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Affiliation(s)
- Sandrine Le Guillou
- GABI, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France.
| | - Johann Laubier
- GABI, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France.
| | - Christine Péchoux
- GABI, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France.
| | - Etienne Aujean
- GABI, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France.
| | - Johan Castille
- GABI, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France.
| | - Christine Leroux
- INRA, UMR1213 Herbivores, F-63122, Saint Genès Champanelle, France; UC Davis, Food Science and Technology Department, Davis, CA, 95616, USA.
| | - Fabienne Le Provost
- GABI, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France.
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Jena MK, Jaswal S, Kumar S, Mohanty AK. Molecular mechanism of mammary gland involution: An update. Dev Biol 2019; 445:145-155. [DOI: 10.1016/j.ydbio.2018.11.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 10/01/2018] [Accepted: 11/06/2018] [Indexed: 12/11/2022]
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19
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Yan W, Zheng H, Dong J, Liu C, Zuo Z, Liu X. MicroRNA-30b is involved in the pathological process of diabetes mellitus induced by pancreatic cancer by regulating plasminogen activator inhibitor-1. BIOTECHNOL BIOTEC EQ 2019. [DOI: 10.1080/13102818.2019.1698977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Affiliation(s)
- Wei Yan
- Department of Anatomy, Histology and Embryology, Guangxi Medical University, Nanning, P.R. China
- Department of Anatomy, Histology and Embryology, Jinzhou Medical University, Jinzhou, P.R. China
| | - He Zheng
- Department of Anatomy, Histology and Embryology, Jinzhou Medical University, Jinzhou, P.R. China
| | - Jun Dong
- Department of Anatomy, Histology and Embryology, Jinzhou Medical University, Jinzhou, P.R. China
| | - Chao Liu
- Department of Genetics, Jinzhou Medical University, Jinzhou, P.R. China
| | - Zhongfu Zuo
- Department of Anatomy, Histology and Embryology, Guangxi Medical University, Nanning, P.R. China
- Department of Anatomy, Histology and Embryology, Jinzhou Medical University, Jinzhou, P.R. China
| | - Xuezheng Liu
- Department of Anatomy, Histology and Embryology, Guangxi Medical University, Nanning, P.R. China
- Department of Anatomy, Histology and Embryology, Jinzhou Medical University, Jinzhou, P.R. China
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20
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miR-30 Family: A Promising Regulator in Development and Disease. BIOMED RESEARCH INTERNATIONAL 2018; 2018:9623412. [PMID: 30003109 PMCID: PMC5996469 DOI: 10.1155/2018/9623412] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Accepted: 04/18/2018] [Indexed: 01/10/2023]
Abstract
MicroRNAs (miRNAs) are small noncoding RNAs that negatively regulate posttranscriptional expression of target genes. Accumulating evidences have demonstrated that the miR-30 family, as a member of microRNAs, played a crucial regulating role in the development of tissues and organs and the pathogenesis of clinical diseases, which indicated that it may be a promising regulator in development and disease. This review aims to clarify the current progress on the regulating role of miR-30 family in tissues and organs development and related disease and highlight their research prospective in the future.
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21
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Zhang L, Li J, Cui L, Shang J, Tian F, Wang R, Xing G. MicroRNA-30b promotes lipopolysaccharide-induced inflammatory injury and alleviates autophagy through JNK and NF-κB pathways in HK-2 cells. Biomed Pharmacother 2018; 101:842-851. [PMID: 29635893 DOI: 10.1016/j.biopha.2018.02.085] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 02/06/2018] [Accepted: 02/20/2018] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Acute kidney injury (AKI) is an abrupt loss of kidney function. MicroRNA-30b (miR-30b) has been reported to be involved in the inflammatory reaction of a variety of diseases. However, the role of miR-30b in AKI remains unknown. In this research, we aimed to investigate the role of miR-30b in lipopolysaccharide (LPS)-induced kindey inflammatory injury in vitro and in vivo. METHODS In vitro, after miR-30b mimic/inhibitor transfection and/or LPS treatment, the viability, apoptosis, autophagy and inflammatory cytokines releases, as well as activation of c-Jun-N-terminal kinase (JNK) and nuclear factor-kappa B (NF-κB) pathways were detected by cell counting kit-8 (CCK-8) assay, flow cytometry, qRT-PCR, enzyme-linked immunosorbent assay (ELISA) and western blot, respectively. In vivo, after LPS treatment and/or anti-miR-30b administration, the levels of creatinine, the activities of alanine aminotransferase (ALT) and histologic scores, as well as concentrations of inflammatory cytokines were assessed by creatinine assay kit, ALT assay kit and ELISA, respectively. RESULTS LPS inhibited HK-2 cell viability and induced HK-2 cell apoptosis, autophagy and the releases of inflammatory cytokines. Overexpression of miR-30b promoted LPS-induced HK-2 cell viability inhibition, cell inflammatory cytokines releases, cell apoptosis induction and activation of JNK and NF-κB signaling pathways, but inhibited LPS-induced HK-2 cell autophagy. Suppression of miR-30b had opposite effects. Moreover, suppression of miR-30b alleviated the LPS-induced kidney injury in mice model by decreasing creatinine level, ALT activity and histologic scores, as well as concentrations of inflammatory cytokines. CONCLUSION miR-30b participated in the LPS-induced kindey inflammatory injury in vitro and in vivo.
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Affiliation(s)
- Lili Zhang
- Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan250021, Shandong, China; Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao266021, Shandong, China
| | - Jun Li
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao266021, Shandong, China
| | - Li Cui
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao266021, Shandong, China
| | - Jinchun Shang
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao266021, Shandong, China
| | - Fen Tian
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao266021, Shandong, China
| | - Rong Wang
- Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan250021, Shandong, China.
| | - Guangqun Xing
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao266021, Shandong, China.
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Haplotype-based genome-wide association study identifies loci and candidate genes for milk yield in Holsteins. PLoS One 2018; 13:e0192695. [PMID: 29447209 PMCID: PMC5813974 DOI: 10.1371/journal.pone.0192695] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 01/29/2018] [Indexed: 11/23/2022] Open
Abstract
Since milk yield is a highly important economic trait in dairy cattle, the genome-wide association study (GWAS) is vital to explain the genetic architecture underlying milk yield and to perform marker-assisted selection (MAS). In this study, we adopted a haplotype-based empirical Bayesian GWAS to identify the loci and candidate genes for milk yield. A total of 1 092 Holstein cows were sequenced by using the genotyping by genome reducing and sequencing (GGRS) method. After filtering, 164 312 high-confidence SNPs and 13 476 haplotype blocks were identified to use for GWAS. The results indicated that 17 blocks were significantly associated with milk yield. We further identified the nearest gene of each haplotype block and annotated the genes with milk-associated quantitative trait locus (QTL) intervals and ingenuity pathway analysis (IPA) networks. Our analysis showed that four genes, DLGAP1, AP2B1, ITPR2 and THBS4, have relationships with milk yield, while another three, ARHGEF4, TDRD1 and KIF19, were inferred to have potential relationships. Additionally, a network derived from the IPA containing one inferred (ARHGEF4) and all four confirmed genes likely regulates milk yield. Our findings add to the understanding of identifying the causal genes underlying milk production traits and could guide follow up studies for further confirmation of the associated genes, pathways and biological networks.
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Mobuchon L, Le Guillou S, Marthey S, Laubier J, Laloë D, Bes S, Le Provost F, Leroux C. Sunflower oil supplementation affects the expression of miR-20a-5p and miR-142-5p in the lactating bovine mammary gland. PLoS One 2017; 12:e0185511. [PMID: 29281677 PMCID: PMC5744907 DOI: 10.1371/journal.pone.0185511] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 09/14/2017] [Indexed: 12/12/2022] Open
Abstract
Oil supplementation in dairy cattle diets is used to modulate milk fat composition, as well as the expression of mammary lipogenic genes, whose regulation remains unclear. MiRNAs are small non-coding RNA considered as crucial regulators of gene expression, offering clues to explain the mechanism underlying gene nutriregulation. The present study was designed to identify miRNAs whose expression in the cow mammary gland is modulated by sunflower oil supplementation. MiRNomes were obtained using RNAseq technology from the mammary gland of lactating cows receiving a low forage diet, supplemented or not with 4% sunflower oil. Among the 272 miRNAs characterized, eight were selected for RT-qPCR validations, showing the significant down-regulation of miR-142-5p and miR-20a-5p by sunflower supplementation. These two miRNAs are predicted to target genes whose expression was reported as differentially expressed by sunflower supplementation. Among their putative targets, ELOVL6 gene involved in lipid metabolism has been studied. However, a first analysis did not show its significant down-regulation, in response to the over-expression of miR-142-5p, of miR-20a-5p, or both, in a bovine mammary epithelial cell line. However, a clearer understanding of the miRNA expression by lipid supplementation would help to decipher the regulation of lactating cow mammary gland in response to nutrition.
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Affiliation(s)
- Lenha Mobuchon
- GABI, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
- INRA, UMR1213 Herbivores, Saint Genès Champanelle, France
- Clermont Université, VetAgro Sup, UMR Herbivores, Clermont-Ferrand, France
| | | | - Sylvain Marthey
- GABI, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Johann Laubier
- GABI, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Denis Laloë
- GABI, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Sébastien Bes
- INRA, UMR1213 Herbivores, Saint Genès Champanelle, France
- Clermont Université, VetAgro Sup, UMR Herbivores, Clermont-Ferrand, France
| | | | - Christine Leroux
- INRA, UMR1213 Herbivores, Saint Genès Champanelle, France
- Clermont Université, VetAgro Sup, UMR Herbivores, Clermont-Ferrand, France
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Chen Y, Yang S, Peng Y, Yang Z. The regulatory role of IL-6R in hepatitis B-associated fibrosis and cirrhosis. ACTA ACUST UNITED AC 2017; 50:e6246. [PMID: 28953986 PMCID: PMC5609599 DOI: 10.1590/1414-431x20176246] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 04/19/2017] [Indexed: 02/07/2023]
Abstract
This study investigated the expression and regulation of IL-6R in hepatitis B-associated moderate hepatic fibrosis and cirrhosis. Liver tissues, peripheral blood monocytes (PBMs) and serum were collected from 26 hepatitis B patients with liver fibrosis and 35 hepatitis B patients with liver cirrhosis. The levels of Il-6r mRNA expression in these samples were examined by quantitative real-time PCR and IL-6R protein levels were analyzed by western blot and ELISA. MiRNAs that regulate IL-6R expression were predicted by bioinformatics analysis, and validated by dual luciferase reporter assay. Compared with the hepatic fibrosis group, IL-6R was significantly upregulated at both mRNA and protein levels in liver tissues, PBMs and serum samples from the hepatic cirrhosis group (P<0.05). The 3'UTR of Il-6r mRNA was predicted to contain a miR-30b binding site and IL-6R was identified as a possible target of miR-30b. MiR-30b expression was significantly downregulated in samples from hepatic cirrhosis patients compared with hepatic fibrosis patients (P<0.05). In conclusion, IL-6R was upregulated while miR-30b was decreased in patients with liver cirrhosis. The miR-30 can directly regulate the expression of IL-6R.
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Affiliation(s)
- Y Chen
- Department of Infectious Diseases, Linyi People's Hospital, Linyi, Shandong, China
| | - S Yang
- Department of Infectious Diseases, Linyi People's Hospital, Linyi, Shandong, China
| | - Y Peng
- Department of Infectious Diseases, Linyi People's Hospital, Linyi, Shandong, China
| | - Z Yang
- Department of Infectious Diseases, Linyi People's Hospital, Linyi, Shandong, China
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Co-Expression Network and Pathway Analyses Reveal Important Modules of miRNAs Regulating Milk Yield and Component Traits. Int J Mol Sci 2017; 18:ijms18071560. [PMID: 28718798 PMCID: PMC5536048 DOI: 10.3390/ijms18071560] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 07/05/2017] [Accepted: 07/05/2017] [Indexed: 01/01/2023] Open
Abstract
Co-expression network analyses provide insights into the molecular interactions underlying complex traits and diseases. In this study, co-expression network analysis was performed to detect expression patterns (modules or clusters) of microRNAs (miRNAs) during lactation, and to identify miRNA regulatory mechanisms for milk yield and component traits (fat, protein, somatic cell count (SCC), lactose, and milk urea nitrogen (MUN)) via miRNA target gene enrichment analysis. miRNA expression (713 miRNAs), and milk yield and components (Fat%, Protein%, lactose, SCC, MUN) data of nine cows at each of six different time points (day 30 (D30), D70, D130, D170, D230 and D290) of an entire lactation curve were used. Four modules or clusters (GREEN, BLUE, RED and TURQUOISE) of miRNAs were identified as important for milk yield and component traits. The GREEN and BLUE modules were significantly correlated (|r| > 0.5) with milk yield and lactose, respectively. The RED and TURQUOISE modules were significantly correlated (|r| > 0.5) with both SCC and lactose. In the GREEN module, three abundantly expressed miRNAs (miR-148a, miR-186 and miR-200a) were most significantly correlated to milk yield, and are probably the most important miRNAs for this trait. DDR1 and DDHX1 are hub genes for miRNA regulatory networks controlling milk yield, while HHEX is an important transcription regulator for these networks. miR-18a, miR-221/222 cluster, and transcription factors HOXA7, and NOTCH 3 and 4, are important for the regulation of lactose. miR-142, miR-146a, and miR-EIA17-14144 (a novel miRNA), and transcription factors in the SMAD family and MYB, are important for the regulation of SCC. Important signaling pathways enriched for target genes of miRNAs of significant modules, included protein kinase A and PTEN signaling for milk yield, eNOS and Noth signaling for lactose, and TGF β, HIPPO, Wnt/β-catenin and cell cycle signaling for SCC. Relevant enriched gene ontology (GO)-terms related to milk and mammary gland traits included cell differentiation, G-protein coupled receptor activity, and intracellular signaling transduction. Overall, this study uncovered regulatory networks in which miRNAs interacted with each other to regulate lactation traits.
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26
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MicroRNAs in ectodermal appendages. Curr Opin Genet Dev 2017; 43:61-66. [DOI: 10.1016/j.gde.2016.12.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 12/12/2016] [Accepted: 12/21/2016] [Indexed: 11/22/2022]
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Do DN, Li R, Dudemaine PL, Ibeagha-Awemu EM. MicroRNA roles in signalling during lactation: an insight from differential expression, time course and pathway analyses of deep sequence data. Sci Rep 2017; 7:44605. [PMID: 28317898 PMCID: PMC5357959 DOI: 10.1038/srep44605] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 02/09/2017] [Indexed: 01/30/2023] Open
Abstract
The study examined microRNA (miRNA) expression and regulatory patterns during an entire bovine lactation cycle. Total RNA from milk fat samples collected at the lactogenesis (LAC, day1 [D1] and D7), galactopoiesis (GAL, D30, D70, D130, D170 and D230) and involution (INV, D290 and when milk production dropped to 5 kg/day) stages from 9 cows was used for miRNA sequencing. A total of 475 known and 238 novel miRNAs were identified. Fifteen abundantly expressed miRNAs across lactation stages play regulatory roles in basic metabolic, cellular and immunological functions. About 344, 366 and 209 miRNAs were significantly differentially expressed (DE) between GAL and LAC, INV and GAL, and INV and LAC stages, respectively. MiR-29b/miR-363 and miR-874/miR-6254 are important mediators for transition signals from LAC to GAL and from GAL to INV, respectively. Moreover, 58 miRNAs were dynamically DE in all lactation stages and 19 miRNAs were significantly time-dependently DE throughout lactation. Relevant signalling pathways for transition between lactation stages are involved in apoptosis (PTEN and SAPK/JNK), intracellular signalling (protein kinase A, TGF-β and ERK5), cell cycle regulation (STAT3), cytokines, hormones and growth factors (prolactin, growth hormone and glucocorticoid receptor). Overall, our data suggest diverse, temporal and physiological signal-dependent regulatory and mediator functions for miRNAs during lactation.
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Affiliation(s)
- Duy N Do
- Agriculture and Agri-Food Canada, Sherbrooke Research and Development Centre, 2000 College Street, Sherbrooke, Quebec, J1M 0C8, Canada.,Department of Animal Science, McGill University, 21111, Lakeshore Road, Ste-Anne-de Bellevue, Quebec, J1M 0C8, Canada
| | - Ran Li
- Agriculture and Agri-Food Canada, Sherbrooke Research and Development Centre, 2000 College Street, Sherbrooke, Quebec, J1M 0C8, Canada.,College of Animal Science and Technology, Northwest A&F University, Xinong road 22, Shaanxi, 712100, China
| | - Pier-Luc Dudemaine
- Agriculture and Agri-Food Canada, Sherbrooke Research and Development Centre, 2000 College Street, Sherbrooke, Quebec, J1M 0C8, Canada
| | - Eveline M Ibeagha-Awemu
- Agriculture and Agri-Food Canada, Sherbrooke Research and Development Centre, 2000 College Street, Sherbrooke, Quebec, J1M 0C8, Canada
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Perge P, Nagy Z, Decmann Á, Igaz I, Igaz P. Potential relevance of microRNAs in inter-species epigenetic communication, and implications for disease pathogenesis. RNA Biol 2016; 14:391-401. [PMID: 27791594 DOI: 10.1080/15476286.2016.1251001] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
MicroRNAs are short non-protein coding RNA molecules involved in the epigenetic regulation of gene expression. Recently, extracellular microRNAs have been described in body fluids that might enable epigenetic communication between distant tissues. Being highly conserved molecules, exogenous xeno-microRNAs from different species could affect gene expression in the host even in a cross-kingdom fashion. Several data underline the relevance of microRNA-mediated communication between virus and host, and there are some experimental data showing that plant- or animal-derived dietary microRNAs might have gene expression modulating activity in humans. Milk-derived microRNAs might be involved in the "epigenetic priming" of the baby. Exogenous microRNAs might be hypothesized to be implicated in disease pathogenesis, e.g. in tumors. Major questions remain to be addressed including the amount of xeno-microRNAs needed for biological action or routes for microRNA delivery. In this brief review, experimental data and hypotheses on the potential pathogenic inter-species relevance of microRNA are presented.
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Affiliation(s)
- Pál Perge
- a 2nd Department of Medicine, Faculty of Medicine , Semmelweis University , Budapest , Hungary
| | - Zoltán Nagy
- a 2nd Department of Medicine, Faculty of Medicine , Semmelweis University , Budapest , Hungary
| | - Ábel Decmann
- a 2nd Department of Medicine, Faculty of Medicine , Semmelweis University , Budapest , Hungary
| | - Ivan Igaz
- b Department of Gastroenterology , Szent Imre Teaching Hospital , Budapest , Hungary
| | - Peter Igaz
- a 2nd Department of Medicine, Faculty of Medicine , Semmelweis University , Budapest , Hungary
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Melnik BC, Kakulas F, Geddes DT, Hartmann PE, John SM, Carrera-Bastos P, Cordain L, Schmitz G. Milk miRNAs: simple nutrients or systemic functional regulators? Nutr Metab (Lond) 2016; 13:42. [PMID: 27330539 PMCID: PMC4915038 DOI: 10.1186/s12986-016-0101-2] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 06/15/2016] [Indexed: 11/10/2022] Open
Abstract
Milk is rich in miRNAs that appear to play important roles in the postnatal development of all mammals. Currently, two competing hypotheses exist: the functional hypothesis, which proposes that milk miRNAs are transferred to the offspring and exert physiological regulatory functions, and the nutritional hypothesis, which suggests that these molecules do not reach the systemic circulation of the milk recipient, but merely provide nutrition without conferring active regulatory signals to the offspring. The functional hypothesis is based on indirect evidence and requires further investigation. The nutritional hypothesis is primarily based on three mouse models, which are inherently problematic: 1) miRNA-375 KO mice, 2) miRNA-200c/141 KO mice, and 3) transgenic mice presenting high levels of miRNA-30b in milk. This article presents circumstantial evidence that these mouse models may all be inappropriate to study the physiological traffic of milk miRNAs to the newborn mammal, and calls for new studies using more relevant mouse models or human milk to address the fate and role of milk miRNAs in the offspring and the adult consumer of cow's milk.
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Affiliation(s)
- Bodo C Melnik
- Department of Dermatology, Environmental Medicine and Health Theory, University of Osnabrück, Osnabrück, Germany
| | - Foteini Kakulas
- School of Chemistry and Biochemistry, Faculty of Science, The University of Western Australia, Crawley, Australia
| | - Donna T Geddes
- School of Chemistry and Biochemistry, Faculty of Science, The University of Western Australia, Crawley, Australia
| | - Peter E Hartmann
- School of Chemistry and Biochemistry, Faculty of Science, The University of Western Australia, Crawley, Australia
| | - Swen Malte John
- Department of Dermatology, Environmental Medicine and Health Theory, University of Osnabrück, Osnabrück, Germany
| | | | - Loren Cordain
- Department of Health and Exercise Science, Colorado State University, Fort Collins, USA
| | - Gerd Schmitz
- Institute of Clinical Chemistry and Laboratory Medicine, University Clinics of Regensburg, Regensburg, Germany
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Li SP, He JD, Wang Z, Yu Y, Fu SY, Zhang HM, Zhang JJ, Shen ZY. miR-30b inhibits autophagy to alleviate hepatic ischemia-reperfusion injury via decreasing the Atg12-Atg5 conjugate. World J Gastroenterol 2016; 22:4501-14. [PMID: 27182160 PMCID: PMC4858632 DOI: 10.3748/wjg.v22.i18.4501] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Revised: 01/30/2016] [Accepted: 03/01/2016] [Indexed: 02/06/2023] Open
Abstract
AIM To explore the role and potential mechanism of miR-30b regulation of autophagy in hepatic ischemia-reperfusion injury (IRI). METHODS An animal model of hepatic IRI was generated in C57BL/6 mice. For in vitro studies, AML12 cells were immersed in mineral oil for 1 h and then cultured in complete Dulbecco's Modified Eagle's Medium (DMEM)/F12 to simulate IRI. Mice and cells were transfected with miR-30b agomir/mimics or antagomir/inhibitor to examine the effect of miR-30b on autophagy to promote hepatic IRI. The expression of miR-30b was measured by real-time polymerase chain reaction. Apoptotic cells were detected by terminal uridine nick-end labeling (TUNEL) staining, and cell viability was detected by methylthiazole tetrazolium assay. The expression of light chain 3, autophagy-related gene (Atg)12, Atg5, P62, and caspase-3 were detected by western blotting analysis. RESULTS miR-30b levels were significantly downregulated after hepatic IRI, and the numbers of autophagosomes were increased in response to IRI both in vivo and in vitro. These findings demonstrate that low levels of miR-30b could promote hepatic IRI. Furthermore, we found that miR-30b interacted with Atg12-Atg5 conjugate by binding to Atg12. Overexpression of miR-30b diminished Atg12 and Atg12-Atg5 conjugate levels, which promoted autophagy in response to IR. In contrast, downregulation of miR-30b was associated with increased Atg12-Atg5 conjugate levels and increased autophagy. CONCLUSION miR-30b inhibited autophagy to alleviate hepatic ischemia-reperfusion injury via decreasing the Atg12-Atg5 conjugate.
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Bertelsen HP, Gregersen VR, Poulsen N, Nielsen RO, Das A, Madsen LB, Buitenhuis AJ, Holm LE, Panitz F, Larsen LB, Bendixen C. Detection of genetic variation affecting milk coagulation properties in Danish Holstein dairy cattle by analyses of pooled whole-genome sequences from phenotypically extreme samples (pool-seq)1. J Anim Sci 2016; 94:1365-76. [DOI: 10.2527/jas.2015-9884] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- H. P. Bertelsen
- Department of Molecular Biology and Genetics, Aarhus University, Tjele, Denmark
| | - V. R. Gregersen
- Department of Molecular Biology and Genetics, Aarhus University, Tjele, Denmark
| | - N. Poulsen
- Department of Food Science, Aarhus University, Tjele, Denmark
| | - R. O. Nielsen
- Department of Molecular Biology and Genetics, Aarhus University, Tjele, Denmark
| | - A. Das
- Department of Molecular Biology and Genetics, Aarhus University, Tjele, Denmark
| | - L. B. Madsen
- Department of Molecular Biology and Genetics, Aarhus University, Tjele, Denmark
| | - A. J. Buitenhuis
- Department of Molecular Biology and Genetics, Aarhus University, Tjele, Denmark
| | - L.-E. Holm
- Department of Molecular Biology and Genetics, Aarhus University, Tjele, Denmark
| | - F. Panitz
- Department of Molecular Biology and Genetics, Aarhus University, Tjele, Denmark
| | - L. B. Larsen
- Department of Food Science, Aarhus University, Tjele, Denmark
| | - C. Bendixen
- Department of Molecular Biology and Genetics, Aarhus University, Tjele, Denmark
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Sandhu GK, Milevskiy MJG, Wilson W, Shewan AM, Brown MA. Non-coding RNAs in Mammary Gland Development and Disease. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 886:121-153. [PMID: 26659490 DOI: 10.1007/978-94-017-7417-8_7] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Non-coding RNAs (ncRNAs) are untranslated RNA molecules that function to regulate the expression of numerous genes and associated biochemical pathways and cellular functions. NcRNAs include small interfering RNAs (siRNAs), microRNAs (miRNAs), PIWI-interacting RNAs (piRNAs), small nucleolar RNAs (snoRNAs) and long non-coding RNAs (lncRNAs). They participate in the regulation of all developmental processes and are frequently aberrantly expressed or functionally defective in disease. This Chapter will focus on the role of ncRNAs, in particular miRNAs and lncRNAs, in mammary gland development and disease.
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Affiliation(s)
- Gurveen K Sandhu
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Australia
| | - Michael J G Milevskiy
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Australia
| | - Wesley Wilson
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Australia
| | - Annette M Shewan
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Australia
| | - Melissa A Brown
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Australia.
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Laubier J, Castille J, Le Guillou S, Le Provost F. No effect of an elevated miR-30b level in mouse milk on its level in pup tissues. RNA Biol 2015; 12:26-9. [PMID: 25763824 PMCID: PMC4615842 DOI: 10.1080/15476286.2015.1017212] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/30/2022] Open
Abstract
Recent reports have shown that ingested microRNAs may be transferred to blood, accumulate in tissues and exert canonical regulation on endogenous transcripts. In spite of several attempts to replicate these findings, they have not been confirmed and several questions remain. By using a transgenic mouse model presenting a high level of miR-30b in milk, the horizontal delivery of this microRNA via oral ingestion was studied in pups. Our findings demonstrated that, although very high levels of miR-30b were found in milk and in stomach contents of the pups, we did not detect an increase in miR-30b in tissues of pups fed by transgenic females compared to pups fed by wild-type females.
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Affiliation(s)
- Johann Laubier
- a INRA; UMR1313 Génétique Animale et Biologie Intégrative ; Jouy-en-Josas , France
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Li R, Beaudoin F, Ammah AA, Bissonnette N, Benchaar C, Zhao X, Lei C, Ibeagha-Awemu EM. Deep sequencing shows microRNA involvement in bovine mammary gland adaptation to diets supplemented with linseed oil or safflower oil. BMC Genomics 2015; 16:884. [PMID: 26519053 PMCID: PMC4628385 DOI: 10.1186/s12864-015-1965-7] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 09/30/2015] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Bovine milk fat composition is responsive to dietary manipulation providing an avenue to modify the content of fatty acids and especially some specific unsaturated fatty acid (USFA) isomers of benefit to human health. MicroRNAs (miRNAs) regulate gene expression but their specific roles in bovine mammary gland lipogenesis are unclear. The objective of this study was to determine the expression pattern of miRNAs following mammary gland adaptation to dietary supplementation with 5 % linseed or safflower oil using next generation RNA-sequencing. METHODS Twenty-four Canadian Holstein dairy cows (twelve per treatment) in mid lactation were fed a control diet (total mixed ration of corn:grass silages) for 28 days followed by a treatment period (control diet supplemented with 5 % linseed or safflower oil) of 28 days. Milk samples were collected weekly for fat and individual fatty acid determination. RNA from mammary gland biopsies harvested on day-14 (control period) and on days +7 and +28 (treatment period) from six randomly selected cows per treatment was subjected to small RNA sequencing. RESULTS Milk fat percentage decreased significantly (P < 0.001) during treatment with the two diets as compared to the control period. The individual saturated fatty acids C4:0, C6:0, C8:0, C14:0 and C16:0 decreased significantly (P < 0.05) while five USFAs (C14:1, C18:1n11t, C20:3n3, C20:5n3 and CLA:t10c12) increased remarkably (P < 0.05) in response to both treatments. Analysis of 361 million sequence reads generated 321 known bovine miRNAs and 176 novel miRNAs. The expression of fourteen and twenty-two miRNAs was affected (P < 0.05) by linseed and safflower oil treatments, respectively. Seven miRNAs including six up-regulated (bta-miR-199c, miR-199a-3p, miR-98, miR-378, miR-148b and miR-21-5p) and one down-regulated (bta-miR-200a) were found to be regulated (P < 0.05) by both treatments, and thus considered core differentially expressed (DE) miRNAs. The gene targets of core DE miRNAs have functions related to gene expression and general cellular metabolism (P < 0.05) and are enriched in four pathways of lipid metabolism (3-phosphoinositide biosynthesis, 3-phosphoinositide degradation, D-myo-inisitol-5-phosphate metabolism and the superpathway of inositol phosphate compounds). CONCLUSION Our results suggest that DE miRNAs in this study might be important regulators of bovine mammary lipogenesis and metabolism. The novel miRNAs identified in this study will further enrich the bovine miRNome repertoire and contribute to understanding mammary gland biology.
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Affiliation(s)
- Ran Li
- Agriculture and Agri-Food Canada, Dairy and Swine Research and Development Centre, Sherbrooke, Quebec, J1M 0C8, Canada
- College of Animal Science and Technology, Northwest A&F University, Xi'an, Shaanxi, 712100, China
| | - Frédéric Beaudoin
- Agriculture and Agri-Food Canada, Dairy and Swine Research and Development Centre, Sherbrooke, Quebec, J1M 0C8, Canada
| | - Adolf A Ammah
- Agriculture and Agri-Food Canada, Dairy and Swine Research and Development Centre, Sherbrooke, Quebec, J1M 0C8, Canada
| | - Nathalie Bissonnette
- Agriculture and Agri-Food Canada, Dairy and Swine Research and Development Centre, Sherbrooke, Quebec, J1M 0C8, Canada
| | - Chaouki Benchaar
- Agriculture and Agri-Food Canada, Dairy and Swine Research and Development Centre, Sherbrooke, Quebec, J1M 0C8, Canada
| | - Xin Zhao
- Department of Animal Science, McGill University, Ste-Anne-de-Bellevue, Quebec, H9X 3V9, Canada
| | - Chuzhao Lei
- College of Animal Science and Technology, Northwest A&F University, Xi'an, Shaanxi, 712100, China
| | - Eveline M Ibeagha-Awemu
- Agriculture and Agri-Food Canada, Dairy and Swine Research and Development Centre, Sherbrooke, Quebec, J1M 0C8, Canada.
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Food Deprivation Affects the miRNome in the Lactating Goat Mammary Gland. PLoS One 2015; 10:e0140111. [PMID: 26473604 PMCID: PMC4608672 DOI: 10.1371/journal.pone.0140111] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 09/22/2015] [Indexed: 11/19/2022] Open
Abstract
Background Nutrition affects milk composition thus influencing its nutritional properties. Nutrition also modifies the expression of mammary genes, whose regulation is not fully understood. MicroRNAs (miRNA) are small non coding RNA which are important post-transcriptional regulators of gene expression by targeting messenger RNAs. Our goal was to characterize miRNA whose expression is regulated by nutrition in the lactating goat mammary gland, which may provide clues to deciphering regulations of the biosynthesis and secretion of milk components. Methodology/principal findings Using high-throughput sequencing technology, miRNomes of the lactating mammary gland were established from lactating goats fed ad libitum or deprived of food for 48h affecting milk production and composition. High throughput miRNA sequencing revealed 30 miRNA with an expression potentially modulated by food deprivation; 16 were down-regulated and 14 were up-regulated. Diana-microT predictive tools suggested a potential role for several nutriregulated miRNA in lipid metabolism. Among the putative targets, 19 were previously identified as differently expressed genes (DEG). The functions of these 19 DEG revealed, notably, their involvement in tissue remodelling. Conclusion/significance In conclusion, this study offers the first evidence of nutriregulated miRNA in the ruminant mammary gland. Characterization of these 30 miRNA could contribute to a clearer understanding of gene regulation in the mammary gland in response to nutrition.
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Fordham JB, Naqvi AR, Nares S. Regulation of miR-24, miR-30b, and miR-142-3p during macrophage and dendritic cell differentiation potentiates innate immunity. J Leukoc Biol 2015; 98:195-207. [PMID: 25990241 DOI: 10.1189/jlb.1a1014-519rr] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 04/17/2015] [Indexed: 01/07/2023] Open
Abstract
miRNAs are ubiquitous regulators of human biology. Parallel profiling of in vitro monocyte-to-Mφ and monocyte-to-DC differentiation revealed static, convergent, and divergent expression of miRNA. Bioinformatic and network analysis of differentially expressed miRNAs implicated miR-24, miR-30b, and miR-142-3p as negative regulators of intracellular signaling pathways, triggered not only by differentiation factors (M-CSF/GM-CSF/IL-4) but also from PRRs. Manipulation of miR-24, miR-30b, and miR-142-3p expression during the differentiation of mD-Mφ and mD-DC differentiation had minimal impact on the acquisition of phenotype but significantly abrogated the ability of these cells to mount inflammatory responses to pathogen-associated stimuli. Forced expression of these miRNAs, which are down-regulated during differentiation, inhibited release of inflammatory cytokines [TNF-α, IL-12(p40), IL-6] upon stimulation with LPS. Functional analysis revealed overlapping mechanisms of inhibition, including surface expression of TLR4/CD14/MD-1 and intracellular PKCα/NF-κB activation. Potential intermediary targets of the TLR4-NF-κB axis included members of the PI3K and MAPK families and PKC isoforms. These results demonstrate the requirement of miR-24, miR-30b, and miR-142-3p down-regulation for the generation of fully functional Mφs and DCs.
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Affiliation(s)
- Jezrom B Fordham
- Department of Periodontics, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Afsar R Naqvi
- Department of Periodontics, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Salvador Nares
- Department of Periodontics, University of Illinois at Chicago, Chicago, Illinois, USA
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Mobuchon L, Marthey S, Boussaha M, Le Guillou S, Leroux C, Le Provost F. Annotation of the goat genome using next generation sequencing of microRNA expressed by the lactating mammary gland: comparison of three approaches. BMC Genomics 2015; 16:285. [PMID: 25888052 PMCID: PMC4430871 DOI: 10.1186/s12864-015-1471-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 03/18/2015] [Indexed: 12/21/2022] Open
Abstract
Background MicroRNAs (miRNA) are small endogenous non-coding RNA involved in the post-transcriptional regulation of specific mRNA targets. The first whole goat genome sequence became available in 2013, with few annotations. Our goal was to establish a list of the miRNA expressed in the mammary gland of lactating goats, thus enabling implementation of the goat miRNA repertoire and considerably enriching annotation of the goat genome. Results Here, we performed high throughput RNA sequencing on 10 lactating goat mammary glands. The bioinformatic detection of miRNA was carried out using miRDeep2 software. Three different methods were used to predict, quantify and annotate the sequenced reads. The first was a de novo approach based on the prediction of miRNA from the goat genome only. The second approach used bovine miRNA as an external reference whereas the last one used recently available goat miRNA. The three methods enabled the prediction and annotation of hundreds of miRNA, more than 95% were commonly identified. Using bovine miRNA, 1,178 distinct miRNA were detected, together with the annotation of 88 miRNA for which corresponding precursors could not be retrieved in the goat genome, and which were not detected using the de novo approach or with the use of goat miRNA. Each chromosomal coordinate of the precursors determined here were generated and depicted on a reference localisation map. Forty six goat miRNA clusters were also reported. The study revealed 263 precursors located in goat protein-coding genes, amongst which the location of 43 precursors was conserved between human, mouse and bovine, revealing potential new gene regulations in the goat mammary gland. Using the publicly available cattle QTL database, and cow precursors conserved in the goat and expressed in lactating mammary gland, 114 precursors were located within known QTL regions for milk production and composition. Conclusions The results reported here represent the first major identification study on miRNA expressed in the goat mammary gland at peak lactation. The elements generated by this study will now be used as references to decipher the regulation of miRNA expression in the goat mammary gland and to clarify their involvement in the lactation process. Electronic supplementary material The online version of this article (doi:10.1186/s12864-015-1471-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Lenha Mobuchon
- INRA, UMR1313 Génétique Animale et Biologie Intégrative, F-78350, Jouy-en-Josas, France. .,INRA, UMR1213 Herbivores, F-63122, Saint Genès Champanelle, France. .,Clermont Université, VetAgro Sup, UMR Herbivores, BP 10448, F-63000, Clermont-Ferrand, France.
| | - Sylvain Marthey
- INRA, UMR1313 Génétique Animale et Biologie Intégrative, F-78350, Jouy-en-Josas, France.
| | - Mekki Boussaha
- INRA, UMR1313 Génétique Animale et Biologie Intégrative, F-78350, Jouy-en-Josas, France.
| | - Sandrine Le Guillou
- INRA, UMR1313 Génétique Animale et Biologie Intégrative, F-78350, Jouy-en-Josas, France.
| | - Christine Leroux
- INRA, UMR1213 Herbivores, F-63122, Saint Genès Champanelle, France. .,Clermont Université, VetAgro Sup, UMR Herbivores, BP 10448, F-63000, Clermont-Ferrand, France.
| | - Fabienne Le Provost
- INRA, UMR1313 Génétique Animale et Biologie Intégrative, F-78350, Jouy-en-Josas, France.
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Han F, Huo Y, Huang CJ, Chen CL, Ye J. MicroRNA-30b promotes axon outgrowth of retinal ganglion cells by inhibiting Semaphorin3A expression. Brain Res 2015; 1611:65-73. [PMID: 25791621 DOI: 10.1016/j.brainres.2015.03.014] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 02/08/2015] [Accepted: 03/06/2015] [Indexed: 10/23/2022]
Abstract
Semaphorin3A (Sema3A) is a major inhibitory factor of optic nerve (ON) regeneration post-injury. Many microRNAs (miRNAs) are expressed specifically in the mammalian brain and retina and are dynamically regulated during development, suggesting that this group of miRNAs may be associated with neural development. We found that microRNA-30b (miR-30b) bound to the three prime untranslated region (3' UTR) of Sema3A and inhibited the expression of Sema3A mRNA. The mRNA expression level of miR-30b and the protein expression levels of Sema3A, Neuropilin1 (NRP1), PlexinA1 (PlexA1), phosphorylated p38MAPK (p-p38MAPK), and active caspase-3 were all upregulated in retinas from rats with a damaged ON relative to those with an intact ON. Transfection of cultured retinal ganglion cells (RGCs) with an miR-30b mimic led to decreased levels of Sema3A, NRP1, PlexA1, p-p38MAPK, and active caspase-3 protein expression, as well as axon elongation and reduced levels of apoptosis. These findings provide evidence that miR-30b inhibits Sema3A expression. Decreased Sema3A expression promotes axon outgrowth in RGCs due to reduced levels of Sema3A binding to NRP1 and PlexA1 and simultaneously reduces apoptosis by inhibiting the p38MAPK and caspase-3 pathways. Our findings provide the first evidence that miR-30b-mediated Sema3A downregulation may serve as a new strategy for the clinical treatment of ON injury.
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Affiliation(s)
- F Han
- Department of Ophthalmology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Y Huo
- Department of Ophthalmology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China
| | - C-J Huang
- Department of Ophthalmology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China
| | - C-L Chen
- Department of Ophthalmology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China
| | - J Ye
- Department of Ophthalmology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China.
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Overexpression of microRNA-30b improves adenovirus-mediated p53 cancer gene therapy for laryngeal carcinoma. Int J Mol Sci 2014; 15:19729-40. [PMID: 25356506 PMCID: PMC4264135 DOI: 10.3390/ijms151119729] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 10/23/2014] [Accepted: 10/24/2014] [Indexed: 11/17/2022] Open
Abstract
MicroRNAs play important roles in laryngeal carcinoma and other cancers. However, the expression of microRNAs in paracancerous tissue has been studied less. Here, using laser capture microdissection (LCM), we detected the expression of microRNAs in paracancerous tissues. Among all down-regulated microRNAs in the center area of tumor tissues, only miR-30b expression was significantly reduced in paracancerous tissues compared to surgical margins. Therefore, to further investigate the effect of miR-30b on laryngeal carcinoma, we stably overexpressed miR-30b in laryngeal carcinoma cell line HEp-2 cells. It was found that although there was no significant difference in cell viability between miR-30b overexpressed cells and control HEp-2 cells, p53 expression was obviously enhanced in miR-30b overexpressed cells. Whether miR-30b could improve the anti-tumor effect of adenovirus-p53 (Ad-p53) in laryngeal carcinoma and other cancer cell lines was also evaluated. It was found that in miR-30b overexpressed HEp-2 cells, p53-mediated tumor cell apoptosis was obviously increased both in vitro and in vivo. MDM2-p53 interaction might be involved in miR-30b-mediated anti-tumor effect. Together, results suggested that miR-30b could modulate p53 pathway and enhance p53 gene therapy-induced apoptosis in laryngeal carcinoma, which could provide a novel microRNA target in tumor therapy.
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Le Guillou S, Marthey S, Laloë D, Laubier J, Mobuchon L, Leroux C, Le Provost F. Characterisation and comparison of lactating mouse and bovine mammary gland miRNomes. PLoS One 2014; 9:e91938. [PMID: 24658750 PMCID: PMC3962357 DOI: 10.1371/journal.pone.0091938] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Accepted: 02/17/2014] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The mammary gland is a dynamic organ that undergoes important physiological changes during reproductive cycles. Until now, data regarding the characterisation of miRNA in the mammary gland have been scarce and mainly focused on their abnormal expression in breast cancer. Our goal was to characterise the microRNA (miRNA) involved in mechanisms regulating the mammary function, with particular focus on the lactation stage. METHODOLOGY/PRINCIPAL FINDINGS Using high-throughput sequencing technology, the exhaustive repertoires of miRNA expressed (miRNome) in mouse and bovine mammary glands during established lactation were identified, characterized and compared. Furthermore, in order to obtain more information on miRNA loading in the RNA-induced silencing complex (RISC), the miRNome was compared with that obtained from RNA associated with the AGO2 protein (AGO2-miRNome) in mouse lactating mammary gland. This study enabled the identification of 164 and 167 miRNA in mouse and bovine, respectively. Among the 30 miRNA most highly expressed in each species, 24 were common to both species and six of them were preferentially highly expressed in lactating than non-lactating mammary gland. The potential functional roles of these 24 miRNA were deduced using DIANA-miRPath software, based on miRNA/mRNA interactions. Moreover, seven putative novel miRNA were identified. Using DAVID analysis, it was concluded that the predicted targets of two of these putative novel miRNA are involved in mammary gland morphogenesis. CONCLUSION/SIGNIFICANCE Our study provides an overview of the characteristics of lactating mouse and bovine mammary gland miRNA expression profiles. Moreover, species-conserved miRNA involved in this fundamental biological function were identified. These miRNomes will now be used as references for further studies during which the impact of animal breeding on the miRNA expression will be analysed.
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Affiliation(s)
- Sandrine Le Guillou
- INRA, UMR1313 Génétique Animale et Biologie Intégrative, Jouy-en-Josas, France
| | - Sylvain Marthey
- INRA, UMR1313 Génétique Animale et Biologie Intégrative, Jouy-en-Josas, France
| | - Denis Laloë
- INRA, UMR1313 Génétique Animale et Biologie Intégrative, Jouy-en-Josas, France
| | - Johann Laubier
- INRA, UMR1313 Génétique Animale et Biologie Intégrative, Jouy-en-Josas, France
| | - Lenha Mobuchon
- INRA, UMR1313 Génétique Animale et Biologie Intégrative, Jouy-en-Josas, France
- INRA, UMR1213 Herbivores, Saint-Genès Champanelle, France
- Clermont Université, VetAgro Sup, UMR1213 Herbivores, Clermont-Ferrand, France
| | - Christine Leroux
- INRA, UMR1213 Herbivores, Saint-Genès Champanelle, France
- Clermont Université, VetAgro Sup, UMR1213 Herbivores, Clermont-Ferrand, France
| | - Fabienne Le Provost
- INRA, UMR1313 Génétique Animale et Biologie Intégrative, Jouy-en-Josas, France
- * E-mail:
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Llobet-Navas D, Rodríguez-Barrueco R, Castro V, Ugalde AP, Sumazin P, Jacob-Sendler D, Demircan B, Castillo-Martín M, Putcha P, Marshall N, Villagrasa P, Chan J, Sanchez-Garcia F, Pe'er D, Rabadán R, Iavarone A, Cordón-Cardó C, Califano A, López-Otín C, Ezhkova E, Silva JM. The miR-424(322)/503 cluster orchestrates remodeling of the epithelium in the involuting mammary gland. Genes Dev 2014; 28:765-82. [PMID: 24636986 PMCID: PMC4015488 DOI: 10.1101/gad.237404.114] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The mammary gland undergoes continuous remodeling. Llobet-Navas et al. identify the microRNA cluster miR-424(322)/503 as an important regulator of epithelial involution after pregnancy. TGF-β regulates the expression of this miR cluster, which in turn targets BCL-2 and IGF1R. This work suggests a model in which activation of the TGF-β pathway after weaning induces the transcription of the miR-424(322)/503 cluster to down-regulate the expression of key genes. The mammary gland is a very dynamic organ that undergoes continuous remodeling. The critical regulators of this process are not fully understood. Here we identify the microRNA cluster miR-424(322)/503 as an important regulator of epithelial involution after pregnancy. Through the generation of a knockout mouse model, we found that regression of the secretory acini of the mammary gland was compromised in the absence of miR-424(322)/503. Mechanistically, we show that miR-424(322)/503 orchestrates cell life and death decisions by targeting BCL-2 and IGF1R (insulin growth factor-1 receptor). Furthermore, we demonstrate that the expression of this microRNA cluster is regulated by TGF-β, a well-characterized regulator of mammary involution. Overall, our data suggest a model in which activation of the TGF-β pathway after weaning induces the transcription of miR-424(322)/503, which in turn down-regulates the expression of key genes. Here, we unveil a previously unknown, multilayered regulation of epithelial tissue remodeling coordinated by the microRNA cluster miR-424(322)/503.
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Affiliation(s)
- David Llobet-Navas
- Institute for Cancer Genetics, Department of Pathology, Columbia University, New York, New York 10032, USA
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Miz1 deficiency in the mammary gland causes a lactation defect by attenuated Stat5 expression and phosphorylation. PLoS One 2014; 9:e89187. [PMID: 24586582 PMCID: PMC3929623 DOI: 10.1371/journal.pone.0089187] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Accepted: 01/15/2014] [Indexed: 01/25/2023] Open
Abstract
Miz1 is a zinc finger transcription factor with an N-terminal POZ domain. Complexes with Myc, Bcl-6 or Gfi-1 repress expression of genes like Cdkn2b (p15Ink4) or Cdkn1a (p21Cip1). The role of Miz1 in normal mammary gland development has not been addressed so far. Conditional knockout of the Miz1 POZ domain in luminal cells during pregnancy caused a lactation defect with a transient reduction of glandular tissue, reduced proliferation and attenuated differentiation. This was recapitulated in vitro using mouse mammary gland derived HC11 cells. Further analysis revealed decreased Stat5 activity in Miz1ΔPOZ mammary glands and an attenuated expression of Stat5 targets. Gene expression of the Prolactin receptor (PrlR) and ErbB4, both critical for Stat5 phosphorylation (pStat5) or pStat5 nuclear translocation, was decreased in Miz1ΔPOZ females. Microarray, ChIP-Seq and gene set enrichment analysis revealed a down-regulation of Miz1 target genes being involved in vesicular transport processes. Our data suggest that deranged intracellular transport and localization of PrlR and ErbB4 disrupt the Stat5 signalling pathway in mutant glands and cause the observed lactation phenotype.
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Zhao M, Sun J, Zhao Z. Synergetic regulatory networks mediated by oncogene-driven microRNAs and transcription factors in serous ovarian cancer. MOLECULAR BIOSYSTEMS 2013; 9:3187-98. [PMID: 24129674 PMCID: PMC3855196 DOI: 10.1039/c3mb70172g] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Although high-grade serous ovarian cancer (OVC) is the most lethal gynecologic malignancy in women, little is known about the regulatory mechanisms in the cellular processes that lead to this cancer. Recently, accumulated lines of evidence have shown that the interplay between transcription factors (TFs) and microRNAs (miRNAs) is critical in cellular regulation during tumorigenesis. A comprehensive investigation of TFs and miRNAs, and their target genes, may provide a deeper understanding of the regulatory mechanisms in the pathology of OVC. In this study, we have integrated three complementary algorithms into a framework, aiming to infer the regulation by miRNAs and TFs in conjunction with gene expression profiles. We demonstrated the utility of our framework by inferring 67 OVC-specific regulatory feed-forward loops (FFL) initiated by miRNAs or TFs in high-grade serous OVC. By analyzing these regulatory behaviors, we found that all the 67 FFLs are consistent in their regulatory effects on genes that are jointly targeted by miRNAs and TFs. Remarkably, we unveiled an unbalanced distribution of FFLs with different oncogenic effects. In total, 31 of the 67 coherent FFLs were mainly initiated by oncogenes. On the contrary, only 4 of the FFLs were initiated by tumor suppressor genes. These overwhelmingly observed oncogenic genes were further detected in a sub-network with 32 FFLs centered by miRNA let-7b and TF TCF7L1 to regulate cell differentiation. Closer inspection of 32 FFLs revealed that 75% of the miRNAs reportedly play functional roles in cell differentiation, especially when enriched in epithelial-mesenchymal transitions. This study provides a comprehensive pathophysiological overview of recurring coherent circuits in OVC that are co-regulated by miRNAs and TFs. The prevalence of oncogenic coherent FFLs in serous OVC suggests that oncogene-driven regulatory motifs could cooperatively act upon critical cellular processes such as cell differentiation in a highly efficient and consistent manner.
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Affiliation(s)
- Min Zhao
- Department of Biomedical Informatics, Vanderbilt University School of Medicine, Nashville, TN, USA.
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Gigli I, Maizon DO. microRNAs and the mammary gland: A new understanding of gene expression. Genet Mol Biol 2013; 36:465-74. [PMID: 24385846 PMCID: PMC3873174 DOI: 10.1590/s1415-47572013005000040] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Accepted: 06/28/2013] [Indexed: 12/21/2022] Open
Abstract
MicroRNAs (miRNAs) have been identified in cells as well as in exosomes in biological fluids such as milk. In mammary gland, most of the miRNAs studied have functions related to immunity and show alterations in their pattern of expression during lactation. In mastitis, the inflammatory response caused by Streptococcus uberis alters the expression of miRNAs that may regulate the innate immune system. These small RNAs are stable at room temperature and are resistant to repeated freeze/thaw cycles, acidic conditions and degradation by RNAse, making them resistant to industrial procedures. These properties mean that miRNAs could have multiple applications in veterinary medicine and biotechnology. Indeed, lactoglobulin-free milk has been produced in transgenic cows expressing specific miRNAs. Although plant and animal miRNAs have undergone independent evolutionary adaptation recent studies have demonstrated a cross-kingdom passage in which rice miRNA was isolated from human serum. This finding raises questions about the possible effect that miRNAs present in foods consumed by humans could have on human gene regulation. Further studies are needed before applying miRNA biotechnology to the milk industry. New discoveries and a greater knowledge of gene expression will lead to a better understanding of the role of miRNAs in physiology, nutrition and evolution.
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Affiliation(s)
- Isabel Gigli
- Facultad de Agronomía, Universidad de La Pampa, Santa Rosa, La Pampa, Argentina
| | - Daniel Omar Maizon
- INTA, EEA Anguil "Ing. Agr. Guillermo Covas", Anguil, La Pampa, Argentina
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Yang X, Zhong X, Tanyi JL, Shen J, Xu C, Gao P, Zheng TM, DeMichele A, Zhang L. mir-30d Regulates multiple genes in the autophagy pathway and impairs autophagy process in human cancer cells. Biochem Biophys Res Commun 2012; 431:617-22. [PMID: 23274497 DOI: 10.1016/j.bbrc.2012.12.083] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Accepted: 12/19/2012] [Indexed: 12/13/2022]
Abstract
In human epithelial cancers, the microRNA (miRNA) mir-30d is amplified with high frequency and serves as a critical oncomir by regulating metastasis, apoptosis, proliferation, and differentiation. Autophagy, a degradation pathway for long-lived protein and organelles, regulates the survival and death of many cell types. Increasing evidence suggests that autophagy plays an important function in epithelial tumor initiation and progression. Using a combined bioinformatics approach, gene set enrichment analysis, and miRNA target prediction, we found that mir-30d might regulate multiple genes in the autophagy pathway including BECN1, BNIP3L, ATG12, ATG5, and ATG2. Our further functional experiments demonstrated that the expression of these core proteins in the autophagy pathway was directly suppressed by mir-30d in cancer cells. Finally, we showed that mir-30d regulated the autophagy process by inhibiting autophagosome formation and LC3B-I conversion to LC3B-II. Taken together, our results provide evidence that the oncomir mir-30d impairs the autophagy process by targeting multiple genes in the autophagy pathway. This result will contribute to understanding the molecular mechanism of mir-30d in tumorigenesis and developing novel cancer therapy strategy.
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Affiliation(s)
- Xiaojun Yang
- Ovarian Cancer Research Center and Department of Obstetrics and Gynecology, University of Pennsylvania, Philadelphia, PA 19104, USA
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Galio L, Droineau S, Yeboah P, Boudiaf H, Bouet S, Truchet S, Devinoy E. MicroRNA in the ovine mammary gland during early pregnancy: spatial and temporal expression of miR-21, miR-205, and miR-200. Physiol Genomics 2012; 45:151-61. [PMID: 23269700 DOI: 10.1152/physiolgenomics.00091.2012] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
The mammary gland undergoes extensive remodeling between the beginning of pregnancy and lactation; this involves cellular processes including cell proliferation, differentiation, and apoptosis, all of which are under the control of numerous regulators. To unravel the role played by miRNA, we describe here 47 new ovine miRNA cloned from mammary gland in early pregnancy displaying strong similarities with those already identified in the cow, human, or mouse. A microarray study of miRNA variations in the adult ovine mammary gland during pregnancy and lactation showed that 100 miRNA are regulated according to three principal patterns of expression: a decrease in early pregnancy, a peak at midpregnancy, or an increase throughout late pregnancy and lactation. One miRNA displaying each pattern (miR-21, miR-205, and miR-200b) was analyzed by qRT-PCR. Variations in expression were confirmed for all three miRNA. Using in situ hybridization, we detected both miR-21 and miR-200 in luminal mammary epithelial cells when expressed, whereas miR-205 was expressed in basal cells during the first half of pregnancy and then in luminal cells during the second half. We therefore conclude that miR-21 is strongly expressed in the luminal cells of the normal mammary gland during early pregnancy when extensive cell proliferation occurs. In addition, we show that miR-205 and miR-200 are coexpressed in luminal cells, but only during the second half of pregnancy. These two miRNA may cooperate to maintain epithelial status by repressing an EMT-like program, to achieve and preserve the secretory phenotype of mammary epithelial cells.
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Affiliation(s)
- Laurent Galio
- Institut National de la Recherche Agronomique (INRA), Unité de Recherche 1196 Génomique et Physiologie de la Lactation, Jouy-en-Josas, France.
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