1
|
Liu D, Guan X, Liu W, Jia Y, Zhou H, Xi C, Zhao M, Fang Y, Wu L, Li K. Identification of transcriptome characteristics of granulosa cells and the possible role of UBE2C in the pathogenesis of premature ovarian insufficiency. J Ovarian Res 2023; 16:203. [PMID: 37848988 PMCID: PMC10580542 DOI: 10.1186/s13048-023-01266-3] [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: 12/14/2022] [Accepted: 08/17/2023] [Indexed: 10/19/2023] Open
Abstract
BACKGROUND Premature ovarian insufficiency (POI) is an important cause of infertility characterized by the functional decline of the ovary. Granulosa cells (GCs) around oocytes are critical for folliculogenesis, and GC dysfunction is one of the important etiologies of POI. The aim of this study was to explore the potential biomarkers of POI by identifying hub genes and analyze the correlation of biomarkers with immune infiltration in POI using RNA profiling and bioinformatics analysis. METHODS RNA sequencing was performed on GCs from biochemical POI (bPOI) patients and controls. Differential expression analysis and weighted gene co-expression network analysis (WGCNA) were used to explore the candidate genes. qRT‒PCR was performed to verify the expression of hub genes. Western blot, Cell Counting Kit-8, 5-ethynyl-2'-deoxyuridine (EdU) assays, TUNEL (TdT-mediated dUTP Nick-End Labeling) and flow cytometry analysis were used to validate the possible role of ubiquitin-conjugating enzyme 2C (UBE2C) in POI. CIBERSORT was adopted to explore immune cell infiltration and the correlation between UBE2C and immune cells in bPOI. RESULTS Through analysis of differentially expressed genes (DEGs) and WGCNA, we obtained 143 candidate genes. After construction of the protein‒protein interaction (PPI) network and analysis with Cytoscape, 10 hub genes, including UBE2C, PBK, BUB1, CDC20, NUSAP1, CENPA, CCNB2, TOP2A, AURKB, and FOXM1, were identified and verified by qRT‒PCR. Subsequently, UBE2C was chosen as a possible biomarker of POI because knockdown of UBE2C could inhibit the proliferation and promote the apoptosis of GCs. Immune infiltration analysis indicated that monocytes and M1 macrophages may be associated with the pathogenesis of POI. In addition, UBE2C was negatively correlated with monocytes and M1 macrophages in POI. CONCLUSIONS This study identified a hub gene in GCs that might be important in the pathogenesis of POI and revealed the key role of UBE2C in driving POI. Immune infiltration may be highly related with the onset and etiology of POI.
Collapse
Affiliation(s)
- Dan Liu
- Centre for Assisted Reproduction, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, 2699 Gaoke West Road, Pudong District, Shanghai, 201204, China
| | - Xiaohong Guan
- Department of Obstetrics and Gynecology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Wenqiang Liu
- Centre for Assisted Reproduction, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, 2699 Gaoke West Road, Pudong District, Shanghai, 201204, China
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Yanping Jia
- Centre for Assisted Reproduction, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, 2699 Gaoke West Road, Pudong District, Shanghai, 201204, China
| | - Hong Zhou
- Centre for Assisted Reproduction, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, 2699 Gaoke West Road, Pudong District, Shanghai, 201204, China
| | - Chenxiang Xi
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Mei Zhao
- Centre for Assisted Reproduction, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, 2699 Gaoke West Road, Pudong District, Shanghai, 201204, China
| | - Yuan Fang
- Department of Obstetrics and Gynecology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Li Wu
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China.
| | - Kunming Li
- Centre for Assisted Reproduction, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, 2699 Gaoke West Road, Pudong District, Shanghai, 201204, China.
| |
Collapse
|
2
|
Yang X, Yang L. Current understanding of the genomic abnormities in premature ovarian failure: chance for early diagnosis and management. Front Med (Lausanne) 2023; 10:1194865. [PMID: 37332766 PMCID: PMC10274511 DOI: 10.3389/fmed.2023.1194865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 05/17/2023] [Indexed: 06/20/2023] Open
Abstract
Premature ovarian failure (POF) is an insidious cause of female infertility and a devastating condition for women. POF also has a strong familial and heterogeneous genetic background. Management of POF is complicated by the variable etiology and presentation, which are generally characterized by abnormal hormone levels, gene instability and ovarian dysgenesis. To date, abnormal regulation associated with POF has been found in a small number of genes, including autosomal and sex chromosomal genes in folliculogenesis, granulosa cells, and oocytes. Due to the complex genomic contributions, ascertaining the exact causative mechanisms has been challenging in POF, and many pathogenic genomic characteristics have yet to be elucidated. However, emerging research has provided new insights into genomic variation in POF as well as novel etiological factors, pathogenic mechanisms and therapeutic intervention approaches. Meanwhile, scattered studies of transcriptional regulation revealed that ovarian cell function also depends on specific biomarker gene expression, which can influence protein activities, thus causing POF. In this review, we summarized the latest research and issues related to the genomic basis for POF and focused on insights gained from their biological effects and pathogenic mechanisms in POF. The present integrated studies of genomic variants, gene expression and related protein abnormalities were structured to establish the role of etiological genes associated with POF. In addition, we describe the design of some ongoing clinical trials that may suggest safe, feasible and effective approaches to improve the diagnosis and therapy of POF, such as Filgrastim, goserelin, resveratrol, natural plant antitoxin, Kuntai capsule et al. Understanding the candidate genomic characteristics in POF is beneficial for the early diagnosis of POF and provides appropriate methods for prevention and drug treatment. Additional efforts to clarify the POF genetic background are necessary and are beneficial for researchers and clinicians regarding genetic counseling and clinical practice. Taken together, recent genomic explorations have shown great potential to elucidate POF management in women and are stepping from the bench to the bedside.
Collapse
Affiliation(s)
- Xu Yang
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Lin Yang
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, China
| |
Collapse
|
3
|
Meng T, Zhang W, Zhang R, Li J, Gao Y, Qin Y, Jiao X. Ovarian Reserve and ART Outcomes in Blepharophimosis-Ptosis-Epicanthus Inversus Syndrome Patients With FOXL2 Mutations. Front Endocrinol (Lausanne) 2022; 13:829153. [PMID: 35574016 PMCID: PMC9097277 DOI: 10.3389/fendo.2022.829153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 03/30/2022] [Indexed: 11/13/2022] Open
Abstract
Objective To characterize the status of ovarian reserve and ART outcomes in BPES women and provide informative reference for clinical diagnosis and treatment. Methods Twenty-one women with BPES were screened for mutations in the FOXL2 gene and underwent assisted reproductive technology (ART) treatment. Indicators for ovarian reserve and ART outcomes were compared between patients with and without FOXL2 mutations. Additionally, ART outcomes were compared among patients with different subtypes of FOXL2 mutations. Results A total of 13 distinct heterozygous variants in the FOXL2 gene were identified in 80.95% of BPES women, including 4 novel mutations with plausible pathogenicity (c.173_175dup, c.481C>T, c.576del and c.675_714del). Compared to non-mutation group, patients with FOXL2 mutations had elevated levels of FSH (P=0.007), decreased AMH levels (P=0.012) and less AFC (P=0.015). They also had worse ART outcomes with large amount of Gn dosage (P=0.008), fewer oocytes (P=0.001), Day3 good quality embryos (P=0.001) and good quality blastocysts (P=0.037), and a higher cancellation rate (P=0.272). High heterogeneity of ART outcomes existed in BPES patients with different FOXL2 mutation types. Conclusions BPES patients with FOXL2 mutations had diminished ovarian reserve and adverse ART outcomes. The genotype-reproductive phenotype correlations were highly heterogeneous and cannot be generalized. Genetic counseling for fertility planning and preimplantation or prenatal genetic diagnosis to reduce offspring inheritance are recommended.
Collapse
Affiliation(s)
- Tingting Meng
- Center for Reproductive Medicine, Shandong University, Jinan, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong University, Jinan, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, China
| | - Wenzhe Zhang
- Center for Reproductive Medicine, Shandong University, Jinan, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong University, Jinan, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, China
| | - Rongrong Zhang
- Center for Reproductive Medicine, Shandong University, Jinan, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong University, Jinan, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, China
| | - Jie Li
- Center for Reproductive Medicine, Shandong University, Jinan, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong University, Jinan, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, China
| | - Yuan Gao
- Center for Reproductive Medicine, Shandong University, Jinan, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong University, Jinan, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, China
| | - Yingying Qin
- Center for Reproductive Medicine, Shandong University, Jinan, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong University, Jinan, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, China
| | - Xue Jiao
- Center for Reproductive Medicine, Shandong University, Jinan, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong University, Jinan, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, China
- Suzhou Research Institute, Shandong University, Jinan, China
| |
Collapse
|
4
|
Zhang X, Zhang R, Hao J, Huang X, Liu M, Lv M, Su C, Mu YL. miRNA-122-5p in POI ovarian-derived exosomes promotes granulosa cell apoptosis by regulating BCL9. Cancer Med 2022; 11:2414-2426. [PMID: 35229987 PMCID: PMC9189466 DOI: 10.1002/cam4.4615] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 12/24/2021] [Accepted: 01/17/2022] [Indexed: 12/12/2022] Open
Abstract
This study is to explore the therapeutic effect and potential mechanisms of exosomal microRNAs (miRNAs) derived from the ovaries with primary ovarian insufficiency (POI). The POI mouse model was established by intraperitoneal injection of cyclophosphamide (CTX) and busulfan. The apoptosis of granulosa cells (GCs) incubated with exosomes extracted from ovarian tissues of control and POI groups was analyzed by flow cytometry. Then, high-throughput sequencing was performed to detect the difference of miRNAs profile in ovarian tissue-derived exosomes between the control and POI mice. The effect of differential miRNA on the apoptosis of CTX-induced ovarian GCs was analyzed by flow cytometry. The results showed that POI mouse model was successfully established. Exosomes extracted from ovarian of normal and POI group have different effects on apoptosis of GCs induced by CTX. miRNA-seq found that exosomal miR-122-5p in POI group increased significantly. miR-122-5p as the dominant miRNA targeting BCL9 was significantly upregulated in ovarian tissues of chemotherapy-induced POI group. Exosomes derived from the ovaries in the control group and miR-122-5p inhibitor group attenuated the apoptosis of primary cultured ovarian GCs. In conclusion, exosomal miR-122-5p promoted the apoptosis of ovarian GCs by targeting BCL9, suggested that miR-122-5p may function as a potential target to restore ovarian function.
Collapse
Affiliation(s)
- Xiujuan Zhang
- Department of Gynecology and Obstetrics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Ruihong Zhang
- Key Laboratory of the Ministry of Education for Experimental Teratology, Department of Histology and Embryology, School of Medicine, Shandong University, Jinan, China
| | - Jing Hao
- Key Laboratory of the Ministry of Education for Experimental Teratology, Department of Histology and Embryology, School of Medicine, Shandong University, Jinan, China
| | - Xiaoyan Huang
- Shandong Maternal and Child Health Care Hospital, Jinan, China
| | - Ming Liu
- Department of Gynecology and Obstetrics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Mengxiao Lv
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Chan Su
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yu-Lan Mu
- Department of Gynecology and Obstetrics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| |
Collapse
|
5
|
DNA-based eyelid trait prediction in Chinese Han population. Int J Legal Med 2021; 135:1743-1752. [PMID: 33969445 DOI: 10.1007/s00414-021-02570-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 03/10/2021] [Indexed: 10/21/2022]
Abstract
The eyelid folding represents one of the most distinguishing features of East Asian faces, involving the absence or presence of the eyelid crease, i.e., single vs. double eyelid. Recently, a genome-wide association study (GWAS) identified two SNPs (rs12570134 and rs1415425) showing genome-wide significant association with the double eyelid phenotype in Japanese. Here we report a confirmatory study in 697 Chinese individuals of exclusively Han origin. Only rs1415425 was statistically significant (P-value = 0.011), and the allele effect was on the same direction with that reported in Japanese. This SNP combined with gender and age explained 10.0% of the total variation in eyelid folding. DNA-based prediction model for the eyelid trait was developed and evaluated using logistic regression. The model showed mild to moderate predictive capacity (AUC = 0.69, sensitivity = 63%, and specificity = 70%). We further selected six additional SNPs by massive parallel sequencing of 19 candidate genes in 24 samples, and one SNP rs2761882 was statistically significant (P-value = 0.027). All predictors including these two SNPs (rs1415425 and rs2761882), gender, and age explained 11.2% of the total variation. The combined prediction model obtained an improved predictive capacity (AUC = 0.72, sensitivity = 62%, and specificity = 66%). Our study thus provided a confirmation of previous GWAS findings and a DNA-based prediction of the eyelid trait in Chinese Han individuals. This model may add value to forensic DNA phenotyping applications considering gender and age can be separately inferred from genetic and epigenetic markers. To further improve the prediction accuracy, future studies should focus on identifying more informative SNPs by large GWASs in East Asian populations.
Collapse
|
6
|
The Genetic and Clinical Features of FOXL2-Related Blepharophimosis, Ptosis and Epicanthus Inversus Syndrome. Genes (Basel) 2021; 12:genes12030364. [PMID: 33806295 PMCID: PMC7998575 DOI: 10.3390/genes12030364] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 02/25/2021] [Indexed: 12/28/2022] Open
Abstract
Blepharophimosis, ptosis, and epicanthus inversus syndrome (BPES) is a craniofacial disorder caused by heterozygous variants of the forkhead box L2 (FOXL2) gene. It shows autosomal dominant inheritance but can also occur sporadically. Depending on the mutation, two phenotypic subtypes have been described, both involving the same craniofacial features: type I, which is associated with premature ovarian failure (POF), and type II, which has no systemic features. The genotype-phenotype correlation is not fully understood, but it has been hypothesised that type I BPES involves more severe loss of function variants spanning the whole gene. Type II BPES has been linked to frameshift mutations that result in elongation of the protein rather than complete loss of function. A mutational hotspot has been identified within the poly-alanine domain, although the exact function of this region is still unknown. However, the BPES subtype cannot be determined genetically, necessitating informed genetic counselling and careful discussion of family planning advice in view of the associated POF particularly as the patient may still be a child. Following puberty, female patients should be referred for ovarian reserve and response assessment. Oculofacial features can be managed with surgical intervention and regular monitoring to prevent amblyopia.
Collapse
|
7
|
La Marca A, Mastellari E. Fertility preservation for genetic diseases leading to premature ovarian insufficiency (POI). J Assist Reprod Genet 2021; 38:759-777. [PMID: 33495935 DOI: 10.1007/s10815-021-02067-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 01/07/2021] [Indexed: 12/13/2022] Open
Abstract
PURPOSE The current review aims to summarize the data available concerning the applicability of fertility preservation techniques to genetic conditions at risk of premature ovarian insufficiency (POI). METHODS A literature review through the PubMed Database was carried out. RESULTS About 10% of cases of POI is related to genetic diseases. The most frequent conditions associated with POI are Turner syndrome and fragile X pre-mutation; mutation of BRCA 1-2 genes and several other mutations and genetic syndromes have recently been highlighted, although they rarely occur. If a diagnosis is issued before POI onset, counseling on currently available fertility preservation techniques is advisable. In case of spontaneous menarche (this can occur variably depending on the mutation) established techniques like embryo or oocyte cryopreservation can be proposed, even if, in some cases, their effectiveness may be reduced by ovarian alterations connected to the mutation. Ovarian tissue cryopreservation has recently been defined as an established medical procedure for fertility preservation in young cancer patients and may be an option for prepubertal patients. However, it is still experimental in special populations with genetic diseases causing POI. New innovative experimental techniques, like in vitro maturation of immature oocytes (IVM) and vitro activation (IVA) of immature follicles on ovarian tissue, have shown limited but encouraging data and they will be probably available in the near future. For a correct risk-benefit evaluation, the following aspects should be considered: actual knowledge about the pathology-specific efficacy of the various techniques, the average age of onset of POI, the possible risks associated with the procedure in relation to the underlying pathology, the probability of spontaneous conception, as well as the health implications of a possible future pregnancy.. CONCLUSIONS Fertility preservation techniques represent a crucial opportunity for patients with genetic risk of POI. Early diagnosis increases the chances to apply these techniques. No specific recommendations concerning fertility preservation for each genetic pathology are available, and clinicians should first counsel the patient and her relatives about known risks and benefits of the available techniques, both those established and those considered as experimental.
Collapse
Affiliation(s)
- Antonio La Marca
- Department of Medical and Surgical Sciences for Mother, Child and Adult, University of Modena and Reggio Emilia, Modena, Italy. .,Clinica Eugin Modena, Modena, Italy.
| | - Elisa Mastellari
- Department of Medical and Surgical Sciences for Mother, Child and Adult, University of Modena and Reggio Emilia, Modena, Italy
| |
Collapse
|
8
|
Abstract
Fertility represents a biological and psychological requirement for women. Some genetic diseases represent a rare cause of infertility, being responsible for 10% of cases of premature ovarian insufficiency. Among these, the most frequent and also those most studied by researchers are Turner Syndrome - due to a karyotype abnormality of the X chromosome pair - and the presence of fragile X premutation (FMR1). To exclude these conditions the diagnostic workup for non-iatrogenic premature ovarian insufficiency (POI) involves the performance of a karyotype analysis and the search for the FMR1 gene mutation, as well as the search for the presence of Y-chromosomal material. However, several other mutations and genetic syndromes associated with POI development have recently been highlighted, although they occur rarely, such as the GALT gene mutation in galactosemia or the FOXL2 gene mutation in BPES and many others, and further autosomal genetic testing are indicated if clinical suspicion is present. Mutations of BRCA 1 and 2 genes, make patients at genetically determined high risk of developing early ovarian or breast cancer and of getting POIs for the treatments they must undergo to prevent it (prophylactic bilateral oophorectomy) or treat it (chemotherapy). The management of impaired fertility is not less important than that of other syndromic manifestations for the quality of life of patients. Few data are available regarding the efficiency of cryopreservation of reproductive material (oocytes, embryos or ovarian tissue) in order to preserve fertility in this particular subgroup of patients, but certainly it represents a promising chance and a hope for the future.
Collapse
Affiliation(s)
- Elisa Mastellari
- Department of Medical and Surgical Sciences for Children and Adults, University of Modena and Reggio Emilia, Modena, Italy
| | - Antonio La Marca
- Department of Medical and Surgical Sciences for Children and Adults, University of Modena and Reggio Emilia, Modena, Italy -
- Clinica Eugin Modena, Modena, Italy
| |
Collapse
|
9
|
Chacón-Camacho OF, Salgado-Medina A, Alcaraz-Lares N, López-Moreno D, Barragán-Arévalo T, Nava-Castañeda A, Rodríguez-Uribe G, Lieberman E, Rodríguez-Cabrera L, González-Del Angel A, Borbolla AM, Fernández-Hernández L, Graue-Hernández EO, Zenteno JC. Clinical characterization and identification of five novel FOXL2 pathogenic variants in a cohort of 12 Mexican subjects with the syndrome of blepharophimosis-ptosis-epicanthus inversus. Gene 2019; 706:62-68. [PMID: 31048069 DOI: 10.1016/j.gene.2019.04.073] [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: 06/26/2018] [Revised: 04/10/2019] [Accepted: 04/26/2019] [Indexed: 01/05/2023]
Abstract
Blepharophimosis-ptosis-epicanthus inversus syndrome (BPES) is an autosomal dominant entity characterized by eyelid malformations and caused by mutations in the forkhead box L2 (FOXL2) gene. Clinical and genetic analyses of large cohorts of BPES patients from different ethnic origins are important for a better characterization of FOXL2 mutational landscape. The purpose of this study is to describe the phenotypic features and the causal FOXL2 variants in a Mexican cohort of BPES patients. A total of 12 individuals with typical facial findings were included. Clinical evaluation included palpebral measurements and levator function assessment. The complete coding sequence of FOXL2 was amplified by PCR and subsequently analyzed by Sanger sequencing. A total of 11 distinct FOXL2 pathogenic variants were identified in our cohort (molecular diagnostic rate of 92%), including 5 novel mutations. Our results broaden the BPES-related mutational spectrum and supports considerable FOXL2 allelic heterogeneity in our population.
Collapse
Affiliation(s)
- Oscar F Chacón-Camacho
- Department of Genetics, Institute of Ophthalmology "Conde de Valenciana", Mexico City, Mexico
| | - Acatzin Salgado-Medina
- Department of Genetics, Institute of Ophthalmology "Conde de Valenciana", Mexico City, Mexico
| | - Nayeli Alcaraz-Lares
- Department of Orbit and Oculoplastics, Institute of Ophthalmology "Conde de Valenciana", Mexico City, Mexico
| | - Daniel López-Moreno
- Department of Genetics, Institute of Ophthalmology "Conde de Valenciana", Mexico City, Mexico
| | | | - Angel Nava-Castañeda
- Department of Orbit and Oculoplastics, Institute of Ophthalmology "Conde de Valenciana", Mexico City, Mexico
| | - Genaro Rodríguez-Uribe
- Department of Genetics, Institute of Ophthalmology "Conde de Valenciana", Mexico City, Mexico
| | - Esther Lieberman
- Department of Genetics, Instituto Nacional de Pediatría, Mexico City, Mexico
| | - Lourdes Rodríguez-Cabrera
- Department of Orbit and Oculoplastics, Institute of Ophthalmology "Conde de Valenciana", Mexico City, Mexico
| | - Ariadna González-Del Angel
- Molecular Biology Laboratory, Department of Genetics, Instituto Nacional de Pediatría, Mexico City, Mexico
| | - Ana María Borbolla
- Department of Ophthalmology, Instituto Nacional de Pediatría, Mexico City, Mexico
| | | | | | - Juan Carlos Zenteno
- Department of Genetics, Institute of Ophthalmology "Conde de Valenciana", Mexico City, Mexico; Department of Biochemistry, Faculty of Medicine, National Autonomous University of Mexico, Mexico City, Mexico.
| |
Collapse
|
10
|
|
11
|
Juárez-Rendón KJ, García-Ortiz JE. "Evaluation of four genes associated with primary ovarian insufficiency in a cohort of Mexican women". J Assist Reprod Genet 2018; 35:1483-1488. [PMID: 29916099 DOI: 10.1007/s10815-018-1232-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 06/01/2018] [Indexed: 01/05/2023] Open
Abstract
PURPOSE Primary ovarian insufficiency (POI) is a clinical condition observed in women younger than 40 years of age, characterized by amenorrhea, hypoestrogenism, high levels of follicle-stimulating hormone (FSH), and infertility. Mutations in some master regulators of the development, maturation, and maintenance of ovarian follicles such as BMP15, FSHR, FOXL2, and GDF9 have been suggested as etiological factors in the development of POI. The aim of this study, the first in the Mexican population, is to evaluate the presence of mutations or polymorphisms in these four candidate genes. METHODS In a sample of 20 Mexican patients with idiopathic POI, we looked for and analyzed genetic variants in BMP15, FSHR, FOXL2, and GDF9 genes. RESULTS We observed two polymorphisms: a coding change, c.919G>A (p.Ala307Thr), in the FSHR gene and a synonymous variant, c.447C>T (p.Thr149Thr), in the GDF9 gene. These two variants have been reported previously as polymorphisms (rs6165 and rs254286, respectively). We observed no significant difference associated with POI in the patients when compared with a healthy control group (p > 0.05). Also, no exonic variants were found for the genes BMP15 and FOXL2 in the individuals tested. CONCLUSIONS The lack of association of the evaluated genes in this sample of Mexican women is consistent with the complex genetic etiology of POI that is observed across cohorts studied thus far.
Collapse
Affiliation(s)
- K J Juárez-Rendón
- CONACyT Research Fellow-Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Laboratorio de Medicina de Conservación, Blvd. del Maestro S/N, Esq. Elías Piña, 88710, Reynosa, Tamaulipas, Mexico
| | - J E García-Ortiz
- División de Genética, Centro de Investigación Biomédica de Occidente, Centro Médico Nacional de Occidente, Laboratorio de Bioquímica 1B, Instituto Mexicano del Seguro Social, Sierra Mojada 800, 44340, Guadalajara, Jalisco, Mexico. .,Dirección de Educación e Investigación en Salud, UMAE, Hospital de Gineco-Obstretricia, Centro Médico Nacional de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico.
| |
Collapse
|
12
|
Podfigurna-Stopa A, Czyzyk A, Grymowicz M, Smolarczyk R, Katulski K, Czajkowski K, Meczekalski B. Premature ovarian insufficiency: the context of long-term effects. J Endocrinol Invest 2016; 39:983-90. [PMID: 27091671 PMCID: PMC4987394 DOI: 10.1007/s40618-016-0467-z] [Citation(s) in RCA: 118] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Accepted: 04/04/2016] [Indexed: 01/28/2023]
Abstract
PURPOSE Premature ovarian insufficiency (POI) is defined as the cessation of the ovarian function before the age of 40 years. POI aetiology may be related to iatrogenic or endogenous factors and in many cases remains unclear. The aim of this review was to characterize the long-term consequences of POI. METHODS The available literature regarding the long-term consequences of POI from MEDLINE has been reviewed. RESULTS Lack of ovarian steroids synthesis has serious consequences for women's health. The short-term effects are similar to spontaneous menopause and refer mainly to the climacteric syndrome. In a longer perspective, POI affects a variety of aspects. It obviously and drastically reduces the chances for spontaneous pregnancies. Oestrogen loss leads also to urogenital atrophy. The most common urogenital symptoms include vaginal dryness, vaginal irritation and itching. The urogenital atrophy and hypoestrogenism interferes also with sexual functioning. Patients with POI are threatened by a decrease in bone mineral density (BMD). POI women also experience psychological distress and some studies have shown an increased risk of neurodegenerating diseases. Overall, POI women have a shortened life expectancy, mainly due to cardiovascular disease. Some studies have reported a reduced risk of breast cancer in this group of patients. CONCLUSIONS In conclusion there are several well-characterized health risks in POI women. With every patient, an individualized approach is required to properly recognize and prevent these risks.
Collapse
Affiliation(s)
- A Podfigurna-Stopa
- Department of Gynecological Endocrinology, Poznan University of Medical Sciences, ul. Polna 33, Poznan, Poland
| | - A Czyzyk
- Department of Gynecological Endocrinology, Poznan University of Medical Sciences, ul. Polna 33, Poznan, Poland
| | - M Grymowicz
- Department of Gynecological Endocrinology, Warsaw Medical University, Warsaw, Poland
| | - R Smolarczyk
- Department of Gynecological Endocrinology, Warsaw Medical University, Warsaw, Poland
| | - K Katulski
- Department of Gynecological Endocrinology, Poznan University of Medical Sciences, ul. Polna 33, Poznan, Poland
| | - K Czajkowski
- II Department of Obstetrics and Gynaecology, Warsaw Medical University, Warsaw, Poland
| | - B Meczekalski
- Department of Gynecological Endocrinology, Poznan University of Medical Sciences, ul. Polna 33, Poznan, Poland.
| |
Collapse
|
13
|
Blepharophimosis Ptosis Epicanthus Inversus Syndrome With Congenital Hypothyroidism and Brachydactyly in a 7-Year-Old Girl. Ophthalmic Plast Reconstr Surg 2016; 33:S82-S84. [PMID: 27115209 DOI: 10.1097/iop.0000000000000708] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
A 7-year-old female presented with blepharophimosis ptosis epicanthus inversus syndrome with congenital hypothyroidism and brachydactyly. She displayed typical manifestations of type II blepharophimosis ptosis epicanthus inversus syndrome (normal uterus position, ovarian volume, and normal serum hormone levels). She takes levothyroxine sodium daily due to her congenital hypothyroidism. Karyotype analysis and genetic analysis of FOXL2 coding sequence was found to be normal. mtDNA A3243G, A8344G, 8993, and 13513 genes were also normal. The absence of mutations excluded mitochondrial encephalomyopathies. To the best of our knowledge, this is the first reported case of blepharophimosis ptosis epicanthus inversus syndrome with congenital hypothyroidism and brachydactyly.
Collapse
|