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Yang H, Xu Y, Yuan Y, Liu X, Zhang J, Li J, Zhang R, Cao J, Cheng T, Liu C. Identification and function of the Pax gene Bmgsb in the silk gland of Bombyx mori. INSECT MOLECULAR BIOLOGY 2024; 33:173-184. [PMID: 38238257 DOI: 10.1111/imb.12886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 11/29/2023] [Indexed: 05/08/2024]
Abstract
Paired box (Pax) genes are highly conserved throughout evolution, and the Pax protein is an important transcription factor of embryonic development. The Pax gene Bmgsb is expressed in the silk glands of silkworm, but its biological functions remain unclear. This study aimed to investigate the expression pattern of Bmgsb in the silk gland and explore its functions using RNA interference (RNAi). Here, we identified eight Pax genes in Bombyx mori. Phylogenetic analysis showed that the B. mori Pax genes were highly homologous to the Pax genes in other insects and highly evolutionarily conserved. The tissue expression profile showed that Bmgsb was expressed in the anterior silk gland and anterior part of the middle silk gland (AMSG). RNAi of Bmgsb resulted in defective development of the AMSG, and the larvae were mostly unable to cocoon in the wandering stage. RNA-seq analysis showed that the fibroin genes fib-l, fib-h and p25, cellular heat shock response-related genes and phenol oxidase genes were considerably upregulated upon Bmgsb knockdown. Furthermore, quantitative reverse transcription-PCR results showed that the fibroin genes and ubiquitin proteolytic enzyme-related genes were significantly upregulated in the AMSG after Bmgsb knockdown. This study provides a foundation for future research on the biological functions of B. mori Pax genes. In addition, it demonstrates the important roles of Bmgsb in the transcriptional regulation of fibroin genes and silk gland development.
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Affiliation(s)
- Hongguo Yang
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Yongping Xu
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Yutong Yuan
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Xuebing Liu
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Jikailang Zhang
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Jiaojiao Li
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Ran Zhang
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Jun Cao
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Tingcai Cheng
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
- Jinfeng Laboratory, Chongqing, China
| | - Chun Liu
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
- Jinfeng Laboratory, Chongqing, China
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Tao F, Zhu H, Xu J, Guo Y, Wang X, Shao L, Pan D, Li G, Fang R. Prognostic value of PAX8 in small cell lung cancer. Heliyon 2024; 10:e28251. [PMID: 38596099 PMCID: PMC11002052 DOI: 10.1016/j.heliyon.2024.e28251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 03/13/2024] [Accepted: 03/14/2024] [Indexed: 04/11/2024] Open
Abstract
Objectives Small cell lung cancer (SCLC) shows poor prognosis since it metastasizes widely at early stage. Paired box gene (PAX) 8 is a transcriptional factor of PAX family, of which the expression in lung cancer is a controversial issue, and its prognostic value of PAX8 in SCLC is still unclear. Materials and methods Overall, 184 subjects who were pathologically diagnosed with SCLC were enrolled in the study. Immunohistochemical analysis of PAX8 and Ki-67 were performed. The correlations between PAX8 expression and clinical features or Ki-67 index were further analyzed. Subsequently, an analysis of the association between PAX8, stage, Ki-67 status, and overall survival (OS) were performed in 169 subjects with follow-up information. Results PAX8 was positive in 53.8% (99/184) SCLC specimens. The positive rate is significantly higher in extensive-stage specimens (61.0%) than in limited-stage specimens (45.24%). PAX8 expression is positively correlated with Ki-67 index (P = 0.001) while negatively correlated with OS (HR = 3.725, 95% CI 1.943-7.139, P<0.001). In combination groups, the PAX8 negative and limited stage group had the most promising OS. Conclusion PAX8 expression rate in SCLC specimens is not low. It has prognostic value in small cell lung cancer.
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Affiliation(s)
| | | | - Jiayun Xu
- Ningbo Clinical Pathology Diagnosis Center, Ningbo, Zhejiang 315211, PR China
| | - Yanan Guo
- Ningbo Clinical Pathology Diagnosis Center, Ningbo, Zhejiang 315211, PR China
| | - Xin Wang
- Ningbo Clinical Pathology Diagnosis Center, Ningbo, Zhejiang 315211, PR China
| | - Lei Shao
- Ningbo Clinical Pathology Diagnosis Center, Ningbo, Zhejiang 315211, PR China
| | - Deng Pan
- Ningbo Clinical Pathology Diagnosis Center, Ningbo, Zhejiang 315211, PR China
| | - Guosheng Li
- Ningbo Clinical Pathology Diagnosis Center, Ningbo, Zhejiang 315211, PR China
| | - Rong Fang
- Ningbo Clinical Pathology Diagnosis Center, Ningbo, Zhejiang 315211, PR China
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Imai T, Yoshida H, Machida Y, Kuramochi M, Ichikawa H, Kubo T, Takahashi M, Kato T. Alteration in molecular properties during establishment and passaging of endometrial carcinoma patient-derived xenografts. Sci Rep 2023; 13:8511. [PMID: 37231035 DOI: 10.1038/s41598-023-35703-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 05/22/2023] [Indexed: 05/27/2023] Open
Abstract
Patient-derived xenograft (PDX) tumor models are known to maintain the genomic and phenotypic profiles, including the histopathological structures, of the parental tumors. On the other hand, unique enrichment of single-nucleotide variants or copy number aberrations has been reported in several types of tumors. However, an understanding of endometrial carcinoma PDXs is limited. The purpose of the present study was to clarify the presence or absence of the molecular properties of endometrial carcinomas in PDXs passaged up to eight times. Established PDXs of endometrioid carcinomas maintained their histopathological characteristics, but those of carcinosarcomas predominantly consisted of sarcomatous components when compared to the parental tumors. Alterations in the proportion of cells with positive/negative immunohistochemical staining for estrogen receptor, PTEN, PAX8, and PAX2 were observed, whereas the proportions of cells with AE1/AE3, TP53, ARID1A, PMS2, and MSH6 staining were unchanged. Variants of cancer-associated genes were compared between PDXs and parental tumors. Mutations in POLE and a frameshift deletion in BRCA1 were observed in the parental tumor tissue in each of the six cases, and additional genomic alterations, which were not apparently related to histopathological and immunohistochemical alterations, were found in the PDXs of these cases. The genomic and phenotypic alterations observed between endometrial carcinoma PDXs and parental tumors were partly associated with endometrial cancer-specific characteristics related to cellular differentiation and gene mutations.
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Affiliation(s)
- Toshio Imai
- Central Animal Division, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
| | - Hiroshi Yoshida
- Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo, Japan
| | - Yukino Machida
- Central Animal Division, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Mizuki Kuramochi
- Central Animal Division, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Hitoshi Ichikawa
- Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Takashi Kubo
- Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Mami Takahashi
- Central Animal Division, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Tomoyasu Kato
- Department of Gynecology, National Cancer Center Hospital, Tokyo, Japan
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Li Z, Zhou G, Duan S, Li Q. Primary clear cell adenocarcinoma of the rectovaginal septum: A rare case report. Medicine (Baltimore) 2023; 102:e33285. [PMID: 36930116 PMCID: PMC10019212 DOI: 10.1097/md.0000000000033285] [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: 02/16/2023] [Accepted: 02/24/2023] [Indexed: 03/18/2023] Open
Abstract
RATIONALE Primary clear cell adenocarcinoma of the rectovaginal septum is a very rare event. PATIENT CONCERNS We reported a case of a 55-year-old woman diagnosed with a lump in the vaginal rectal septum after undergoing hysterectomy with bilateral salpingo-oophorectomy in 2017, who was admitted to our department due to vaginal bleeding. Magnetic resonance imaging of the pelvis indicated the vaginal rectal space cystic and solid mass about 110 mm × 100 mm × 140 mm in size. DIAGNOSIS The pathological diagnosis of postoperative was clear cell adenocarcinoma. INTERVENTIONS Abdominal laparotomy showed a solid block of the vaginal rectal septum. Surgery was performed to reduce the tumor. OUTCOMES This patient received 8 courses of combined chemotherapy courses after surgery for the residual lesion and achieved a complete response. LESSONS Due to the rare observation of the growth pattern, the cell morphology and immune phenotype are not specific, and clinical and pathological diagnosis is difficult. Introducing the diagnosis and treatment of this case and reviewing the literature provide a relevant reference for clinicians identification and diagnosis and treatment of this rare case.
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Affiliation(s)
- Zhifang Li
- Obstetrics and Gynecology, Anqing Municipal Hospital, Anqing, China
| | - Guiju Zhou
- Obstetrics and Gynecology, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Shuqiang Duan
- Obstetrics and Gynecology, Anqing Municipal Hospital, Anqing, China
| | - Qing Li
- Obstetrics and Gynecology, Anqing Municipal Hospital, Anqing, China
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Starling AP, Wood C, Liu C, Kechris K, Yang IV, Friedman C, Thomas DSK, Peel JL, Adgate JL, Magzamen S, Martenies SE, Allshouse WB, Dabelea D. Ambient air pollution during pregnancy and DNA methylation in umbilical cord blood, with potential mediation of associations with infant adiposity: The Healthy Start study. ENVIRONMENTAL RESEARCH 2022; 214:113881. [PMID: 35835166 PMCID: PMC10402394 DOI: 10.1016/j.envres.2022.113881] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 06/11/2022] [Accepted: 07/06/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Prenatal exposure to ambient air pollution has been associated with adverse offspring health outcomes. Childhood health effects of prenatal exposures may be mediated through changes to DNA methylation detectable at birth. METHODS Among 429 non-smoking women in a cohort study of mother-infant pairs in Colorado, USA, we estimated associations between prenatal exposure to ambient fine particulate matter (PM2.5) and ozone (O3), and epigenome-wide DNA methylation of umbilical cord blood cells at delivery (2010-2014). We calculated average PM2.5 and O3 in each trimester of pregnancy and the full pregnancy using inverse-distance-weighted interpolation. We fit linear regression models adjusted for potential confounders and cell proportions to estimate associations between air pollutants and methylation at each of 432,943 CpGs. Differentially methylated regions (DMRs) were identified using comb-p. Previously in this cohort, we reported positive associations between 3rd trimester O3 exposure and infant adiposity at 5 months of age. Here, we quantified the potential for mediation of that association by changes in DNA methylation in cord blood. RESULTS We identified several DMRs for each pollutant and period of pregnancy. The greatest number of significant DMRs were associated with third trimester PM2.5 (21 DMRs). No single CpGs were associated with air pollutants at a false discovery rate <0.05. We found that up to 8% of the effect of 3rd trimester O3 on 5-month adiposity may be mediated by locus-specific methylation changes, but mediation estimates were not statistically significant. CONCLUSIONS Differentially methylated regions in cord blood were identified in association with maternal exposure to PM2.5 and O3. Genes annotated to the significant sites played roles in cardiometabolic disease, immune function and inflammation, and neurologic disorders. We found limited evidence of mediation by DNA methylation of associations between third trimester O3 exposure and 5-month infant adiposity.
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Affiliation(s)
- Anne P Starling
- Department of Epidemiology, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
| | - Cheyret Wood
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Cuining Liu
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Katerina Kechris
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Ivana V Yang
- Department of Epidemiology, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Division of Biomedical Informatics and Personalized Medicine, Department of Medicine, University of Colorado School of Medicine, Aurora, CO, USA; Center for Genes, Environment and Health, National Jewish Health, Denver, CO, USA
| | - Chloe Friedman
- Department of Epidemiology, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Deborah S K Thomas
- Department of Geography and Earth Sciences, University of North Carolina Charlotte, NC, USA
| | - Jennifer L Peel
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA
| | - John L Adgate
- Department of Environmental and Occupational Health, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Sheryl Magzamen
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA; Department of Epidemiology, Colorado School of Public Health, Colorado State University, Fort Collins, CO, USA
| | - Sheena E Martenies
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA; Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - William B Allshouse
- Department of Environmental and Occupational Health, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Dana Dabelea
- Department of Epidemiology, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Department of Pediatrics, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
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Hu S, Gan H, Yang F. Significance analysis of PAX8 expression in endometrial carcinoma. Medicine (Baltimore) 2022; 101:e31159. [PMID: 36281161 PMCID: PMC9592497 DOI: 10.1097/md.0000000000031159] [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] [Indexed: 11/26/2022] Open
Abstract
To analyze the expression and prognostic value of paired-box 8 (PAX8) expression in uterine corpus endometrial carcinoma (UCEC) by bioinformatics. The expression of PAX8 gene in UCEC was analyzed by R language and immunohistochemistry. The correlation between PAX8 expression and clinicopathological features was analyzed by R language. The prognostic factors was analyzed by univariate/multivariate regression. The survival curve of patients was analyzed by Kaplan-Meier Plotter (K-M Plotter). The diagnostic value of PAX8 in UCEC was analyzed by receiver operating characteristic curve, and the relationship between PAX8 expression and methylation was analyzed by Ualcan. The relationship between methylation and prognosis was analyzed by MethSurv database. The expression of PAX8 in cancer tissues was significantly higher than that in normal tissues. The expression of PAX8 was related to clinical stage, age, histological type, histologic grade, tumor invasion and disease-specific survival event. Univariate/multivariate regression analysis showed that clinical stage, tumor invasion, and PAX8 expression were the influence factors of overall survival (OS), while histologic grade and PAX8 expression were the influence factors of disease-specific survival, and patients with low expression had a longer OS. The area under the curve of receiver operating characteristic curve was 0.81 for PAX8 diagnosis of UCEC. PAX8 was hypomethylated in cancer tissue, and patients with hypermethylated PAX8 had a longer OS. The high expression of PAX8 induced by hypomethylation may play an important role in the occurrence and prognosis of UCEC.
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Affiliation(s)
- Shan Hu
- Department of Obstetrics and Gynecology, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, P.R. China
| | - Hua Gan
- Department of Orthopaedic, XiangZhou District Renmin Hospital, Xiangyang, Hubei, P.R. China
| | - Fengmei Yang
- Department of Obstetrics and Gynecology, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, P.R. China
- * Correspondence: Fengmei Yang, Department of Obstetrics and Gynecology, Taihe Hospital, Hubei University of Medicine, Renmin Southern 32, Shiyan, Hubei 442000, P.R. China (e-mail: )
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Hakimi AA, Sellers MM, Morton AP. Spontaneous Recurrent Pneumothorax during Pregnancy Secondary to Ectopic Deciduosis. Thorac Cardiovasc Surg Rep 2022; 11:e67-e69. [PMID: 36389131 PMCID: PMC9646399 DOI: 10.1055/s-0042-1758115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 07/25/2022] [Indexed: 11/11/2022] Open
Abstract
Background
Ectopic deciduosis is a benign presence of endometrial tissue outside of the uterus during pregnancy that rarely presents with pleuropulmonary manifestations and recurrent pneumothorax.
Case Description
We report a 35-year-old woman at 15 weeks' gestation with a history of recurrent intrapartum right pneumothorax found to have pleural, pulmonary, and diaphragmatic lesions and a middle lobe air leak. Wedge resection of the middle lobe and mechanical pleurodesis was performed. Histopathological analysis was progesterone receptor and PAX8 positive consistent with ectopic deciduosis.
Conclusion
Ectopic deciduosis is a rare cause of recurrent pneumothorax in pregnancy and should be considered when evaluating these patients.
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Affiliation(s)
- Ali A. Hakimi
- University of Colorado Anschutz School of Medicine, Aurora, CO
| | - Morgan M. Sellers
- Department of Surgery, Ernest E. Moore Shock Trauma Center at Denver Health, CO, USA
| | - Alexander P. Morton
- Division of GI, Trauma, and Endocrine Surgery, Department of Surgery, University of Colorado School of Medicine, Aurora, USA
- Department of Surgery, Denver Health Medical Center, University of Colorado School of Medicine, Denver, Colorado
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