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Martin-Almedina S, Mortimer PS, Ostergaard P. Development and physiological functions of the lymphatic system: insights from human genetic studies of primary lymphedema. Physiol Rev 2021; 101:1809-1871. [PMID: 33507128 DOI: 10.1152/physrev.00006.2020] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Primary lymphedema is a long-term (chronic) condition characterized by tissue lymph retention and swelling that can affect any part of the body, although it usually develops in the arms or legs. Due to the relevant contribution of the lymphatic system to human physiology, while this review mainly focuses on the clinical and physiological aspects related to the regulation of fluid homeostasis and edema, clinicians need to know that the impact of lymphatic dysfunction with a genetic origin can be wide ranging. Lymphatic dysfunction can affect immune function so leading to infection; it can influence cancer development and spread, and it can determine fat transport so impacting on nutrition and obesity. Genetic studies and the development of imaging techniques for the assessment of lymphatic function have enabled the recognition of primary lymphedema as a heterogenic condition in terms of genetic causes and disease mechanisms. In this review, the known biological functions of several genes crucial to the development and function of the lymphatic system are used as a basis for understanding normal lymphatic biology. The disease conditions originating from mutations in these genes are discussed together with a detailed clinical description of the phenotype and the up-to-date knowledge in terms of disease mechanisms acquired from in vitro and in vivo research models.
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Affiliation(s)
- Silvia Martin-Almedina
- Molecular and Clinical Sciences Institute, St. George's University of London, London, United Kingdom
| | - Peter S Mortimer
- Molecular and Clinical Sciences Institute, St. George's University of London, London, United Kingdom
- Dermatology and Lymphovascular Medicine, St. George's Universities NHS Foundation Trust, London, United Kingdom
| | - Pia Ostergaard
- Molecular and Clinical Sciences Institute, St. George's University of London, London, United Kingdom
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2
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Zhang A, Aslam H, Sharma N, Warmflash A, Fakhouri WD. Conservation of Epithelial-to-Mesenchymal Transition Process in Neural Crest Cells and Metastatic Cancer. Cells Tissues Organs 2021; 210:151-172. [PMID: 34218225 DOI: 10.1159/000516466] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 04/12/2021] [Indexed: 11/19/2022] Open
Abstract
Epithelial to mesenchymal transition (EMT) is a highly conserved cellular process in several species, from worms to humans. EMT plays a fundamental role in early embryogenesis, wound healing, and cancer metastasis. For neural crest cell (NCC) development, EMT typically results in forming a migratory and potent cell population that generates a wide variety of cell and tissue, including cartilage, bone, connective tissue, endocrine cells, neurons, and glia amongst many others. The degree of conservation between the signaling pathways that regulate EMT during development and metastatic cancer (MC) has not been fully established, despite ample studies. This systematic review and meta-analysis dissects the major signaling pathways involved in EMT of NCC development and MC to unravel the similarities and differences. While the FGF, TGFβ/BMP, SHH, and NOTCH pathways have been rigorously investigated in both systems, the EGF, IGF, HIPPO, Factor Receptor Superfamily, and their intracellular signaling cascades need to be the focus of future NCC studies. In general, meta-analyses of the associated signaling pathways show a significant number of overlapping genes (particularly ligands, transcription regulators, and targeted cadherins) involved in each signaling pathway of both systems without stratification by body segments and cancer type. Lack of stratification makes it difficult to meaningfully evaluate the intracellular downstream effectors of each signaling pathway. Finally, pediatric neuroblastoma and melanoma are NCC-derived malignancies, which emphasize the importance of uncovering the EMT events that convert NCC into treatment-resistant malignant cells.
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Affiliation(s)
- April Zhang
- Center for Craniofacial Research, Department of Diagnostic and Biomedical Sciences, School of Dentistry, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Hira Aslam
- Center for Craniofacial Research, Department of Diagnostic and Biomedical Sciences, School of Dentistry, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Neha Sharma
- Center for Craniofacial Research, Department of Diagnostic and Biomedical Sciences, School of Dentistry, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Aryeh Warmflash
- Department of Biosciences, Rice University, Houston, Texas, USA
| | - Walid D Fakhouri
- Center for Craniofacial Research, Department of Diagnostic and Biomedical Sciences, School of Dentistry, University of Texas Health Science Center at Houston, Houston, Texas, USA.,Department of Pediatrics, McGovern Medical School, University of Texas Health Science Center, Houston, Texas, USA
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3
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Liu J, Tian Y, Yi L, Gao Z, Lou M, Yuan K. High KIF11 expression is associated with poor outcome of NSCLC. TUMORI JOURNAL 2021; 108:40-46. [PMID: 33554761 DOI: 10.1177/0300891620988342] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
PURPOSE To clarify the correlation between KIF11 (kinesin family member 11) and clinicopathologic characteristics of non-small cell lung cancer (NSCLC) and identify the prognostic value of KIF11 in patients with NSCLC. METHODS For investigating the expression of KIF11 in NSCLC, two tissue microarrays (TMAs: one contained 60 paired NSCLC tissues and paratumor tissues, the other contained 140 NSCLC tissues and 10 normal lung tissues) were constructed, stained, and scored. The Cancer Genome Atlas (TCGA) datasets were used to explore the differential expression level of KIF11 between NSCLC and paratumor. Kaplan-Meier survival curves were plotted and multivariate analysis were carried out. RESULTS The staining of KIF11 mainly distributed throughout the cytoplasm of tumor cells. Its expression was higher in NSCLC than paratumor cells, and similar results were obtained from TCGA datasets. We found that high expression of KIF11 had a significant correlation with lymph node metastases (p = 0.024) and pathologic stage (p = 0.018); that significant difference was not found in any other clinicopathologic characteristic. As univariate and multivariate analysis showed, KIF11 expression was significantly correlated with overall survival time of NSCLC (p = 0.002, p = 0.025, respectively). High KIF11 expression was found to significantly associate with overall survival of stage II-III (p = 0.001) and lung adenocarcinoma (p = 0.036). CONCLUSION High KIF11 expression predicts poor outcome in NSCLC. KIF11 is expected to be a viable prognostic biomarker for NSCLC.
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Affiliation(s)
- Junhui Liu
- School of Medicine, Dalian Medical University, Dalian, China.,Division of Thoracic Surgery, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Yubin Tian
- School of Medicine, Dalian Medical University, Dalian, China.,Division of Thoracic Surgery, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Lei Yi
- Division of Thoracic Surgery, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Zhaojia Gao
- Division of Thoracic Surgery, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, China.,Heart and Lung Disease Laboratory, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Ming Lou
- Division of Thoracic Surgery, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Kai Yuan
- Division of Thoracic Surgery, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, China.,Heart and Lung Disease Laboratory, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, China
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Peng X, Wang J, Li D, Chen X, Liu K, Zhang C, Lai Y. Identification of grade-related genes and construction of a robust genomic-clinicopathologic nomogram for predicting recurrence of bladder cancer. Medicine (Baltimore) 2020; 99:e23179. [PMID: 33217824 PMCID: PMC7676566 DOI: 10.1097/md.0000000000023179] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Bladder cancer (BC) is a common tumor in the urinary system with a high recurrence rate. The individualized treatment and follow-up after surgery is the key to a successful outcome. Currently, the surveillance strategies are mainly depending on tumor stage and grade. Previous evidence has proved that tumor grade was a significant and independent risk factor of BC recurrence. Exploring the grade-related genes may provide us a new approach to predict prognosis and guide the post-operative treatment in BC patients. METHODS In this study, the weighted gene co-expression network analysis was applied to identify the hub gene module correlated with BC grade using GSE71576. After constructing a protein-protein interaction (PPI) network with the hub genes inside the hub gene module, we identified some potential core genes. TCGA and another independent dataset were used for further validation. RESULTS The results revealed that the expression of AURKA, CCNA2, CCNB1, KIF11, TTK, BUB1B, BUB1, and CDK1 were significantly higher in high-grade BC, showing a strong ability to distinguish BC grade. The expression levels of the 8 genes in normal, paracancerous, tumorous, and recurrent bladder tissues were progressively increased. By conducting survival analysis, we proved their prognostic value in predicting the recurrence of BC. Eventually, we constructed a prognostic nomogram by combining the 8-core-gene panel with clinicopathologic features, which had shown great performance in predicting the recurrence of BC. CONCLUSION We identified 8 core genes that revealed a significant correlation with the tumor grade as well as the recurrence of BC. Finally, we proved the value of a novel prognostic nomogram for predicting the relapse-free survival of BC patients after surgery, which could guide their treatment and follow-up.
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Affiliation(s)
- Xiqi Peng
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen
- Shantou University Medical College, Shantou, Guangdong
| | - Jingyao Wang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen
| | - Dongna Li
- Shantou University Medical College, Shantou, Guangdong
| | - Xuan Chen
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen
- Shantou University Medical College, Shantou, Guangdong
| | - Kaihao Liu
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen
- Anhui Medical University, Hefei, Anhui, China
| | - Chunduo Zhang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen
| | - Yongqing Lai
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen
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Jin Q, Dai Y, Wang Y, Zhang S, Liu G. High kinesin family member 11 expression predicts poor prognosis in patients with clear cell renal cell carcinoma. J Clin Pathol 2019; 72:354-362. [PMID: 30819726 PMCID: PMC6580793 DOI: 10.1136/jclinpath-2018-205390] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 01/03/2019] [Accepted: 01/09/2019] [Indexed: 01/20/2023]
Abstract
Aims Kinesin family member 11 (Kif11) is a member of the kinesin family motor proteins, which is associated with spindle formation and tumour genesis. In this study, we investigated the relationship between Kif11 expression and clear cell renal cell carcinoma (CCRCC) development. Methods The relationship between Kif11 expression and CCRCC development was analysed by quantitative real-time (qRT)-PCR analyses, and tissue immunohistochemistry. The prognostic significance of Kif11 expression was explored by univariable and multivariable survival analyses of 143 included patients. Furthermore, SB743921 was used as a specific Kif11 inhibitor to treat 786-O cells with the epithelial to mesenchymal transition (EMT) process analysed by qRT-PCR, and cell survival rates analysed with Annexin V-FITC/PI staining followed by flow cytometric analyses. Disease-free survival curves of Kif11 with different cancers and the relationships between Kif11 and the von Hippel-Lindau disease tumour suppressor gene (VHL), and proliferating cell nuclear antigen (PCNA) in kidney cancer were further analysed using the GEPIA database. Results The levels of Kif11 mRNA were significantly higher in CCRCC tissues compared with corresponding non-cancerous tissues. The results of immunohistochemistry demonstrated that the expression of Kif11 protein was significantly associated with clinicopathologial parameters, including nuclear grade and TNM stage. The Kaplan-Meier survival curve indicated that high Kif11 expression, nuclear grade and TNM stage were independent factors to predict poor prognosis in patients with CCRCC. In addition, inhibition of Kif11 expression by SB743921 suppressed cell proliferation, migration and the EMT process with increased apoptosis rate. Conclusions These results combined with bioinformation analyses suggest that high Kif11 expression was associated with unfavourable prognosis in CCRCC and could be used as a potential prognostic marker in the clinical diagnosis of CCRCC.
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Affiliation(s)
- Qin Jin
- Department of Pathology, Affiliated Hospital of Nantong University, Jiangsu, China
| | - Yanfeng Dai
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, College of Biological Sciences, Inner Mongolia University, Inner Mongolia, China
| | - Yan Wang
- Department of Pathology, Affiliated Hospital of Nantong University, Jiangsu, China
| | - Shu Zhang
- Department of Pathology, Affiliated Hospital of Nantong University, Jiangsu, China
| | - Gang Liu
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, College of Biological Sciences, Inner Mongolia University, Inner Mongolia, China
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Bonano M, Martín E, Moreno Ruiz Holgado MM, Silenzi Usandivaras GM, Ruiz De Bigliardo G, Aybar MJ. Molecular characterization of wdr68 gene in embryonic development of Xenopus laevis. Gene Expr Patterns 2018; 30:55-63. [PMID: 30125741 DOI: 10.1016/j.gep.2018.08.001] [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: 02/17/2018] [Revised: 07/02/2018] [Accepted: 08/16/2018] [Indexed: 11/27/2022]
Abstract
WDR68, also known as DCAF7, is a WD40 repeated domain protein highly conserved in eukaryotic organisms in both plants and animals. This protein participates in numerous cellular processes and exerts its function through interaction with other proteins. In the present work, we isolated, sequenced and characterized cDNA corresponding to the wdr68 gene in embryos of the amphibian Xenopus laevis. Syntenic analysis revealed high conservation of the genomic region containing the WDR68 locus in amniotes. Nevertheless, in fishes and amphibians, we observed that the tandem genes surrounding wdr68 undergoes certain rearrangements with respect to the organization found in amniotes. We also defined the temporal and spatial expression pattern of the wdr68 gene in the development of Xenopus laevis through whole mount in situ hybridization and RT-PCR techniques. We observed that wdr68 is ubiquitously expressed during early embryonic development but, during the neurula stage, it undergoes a strong expression in the neural tube and in the migratory cephalic streams of the neural crest. At the tailbud stages, it is strongly expressed in the cephalic region, particularly in otic and optic vesicles, in addition to branchial arches. In contrast, wdr68 transcripts are localized in the somitic mesoderm in the trunk. The expression area that includes the migratory neural crest of the head and the branchial arches suggest that this gene would be involved in jaws formation, probably through a hierarchical relationship with the component genes of the endothelin-1/endothelin receptor type A cell signaling pathway.
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Affiliation(s)
- Marcela Bonano
- Facultad de Ciencias Naturales e IML de la Universidad Nacional de Tucumán, Miguel Lillo 205, T4000JFE, San Miguel de Tucumán, Tucumán, Argentina; Instituto Superior de Investigaciones Biológicas (INSIBIO, CONICET-Universidad Nacional de Tucumán), Chacabuco 461, T4000ILI, San Miguel de Tucumán, Tucumán, Argentina.
| | - Eduardo Martín
- Facultad de Ciencias Naturales e IML de la Universidad Nacional de Tucumán, Miguel Lillo 205, T4000JFE, San Miguel de Tucumán, Tucumán, Argentina; Instituto de Genética de la Fundación Miguel Lillo, Miguel Lillo 251, T4000JFE, San Miguel de Tucumán, Tucumán, Argentina
| | - María Macarena Moreno Ruiz Holgado
- Facultad de Ciencias Naturales e IML de la Universidad Nacional de Tucumán, Miguel Lillo 205, T4000JFE, San Miguel de Tucumán, Tucumán, Argentina; Unidad Ejecutora Lillo, Miguel Lillo 251, T4000JFE, San Miguel de Tucumán, Tucumán, Argentina
| | | | - Graciela Ruiz De Bigliardo
- Facultad de Ciencias Naturales e IML de la Universidad Nacional de Tucumán, Miguel Lillo 205, T4000JFE, San Miguel de Tucumán, Tucumán, Argentina; Instituto de Genética de la Fundación Miguel Lillo, Miguel Lillo 251, T4000JFE, San Miguel de Tucumán, Tucumán, Argentina
| | - Manuel J Aybar
- Instituto Superior de Investigaciones Biológicas (INSIBIO, CONICET-Universidad Nacional de Tucumán), Chacabuco 461, T4000ILI, San Miguel de Tucumán, Tucumán, Argentina; Instituto de Biología "Dr. Francisco D. Barbieri", Facultad de Bioquímica, Química y Farmacia de la Universidad Nacional de Tucumán, Chacabuco 461, T4000ILI, San Miguel de Tucumán, Tucumán, Argentina
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Latin American contributions to the neural crest field. Mech Dev 2018; 153:17-29. [PMID: 30081090 DOI: 10.1016/j.mod.2018.07.009] [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: 03/31/2018] [Revised: 07/15/2018] [Accepted: 07/26/2018] [Indexed: 11/21/2022]
Abstract
The neural crest (NC) is one of the most fascinating structures during embryonic development. Unique to vertebrate embryos, these cells give rise to important components of the craniofacial skeleton, such as the jaws and skull, as well as melanocytes and ganglia of the peripheral nervous system. Worldwide, several groups have been studying NC development and specifically in the Latin America (LA) they have been growing in numbers since the 1990s. It is important for the world to recognize the contributions of LA researchers on the knowledge of NC development, as it can stimulate networking and improvement in the field. We developed a database of LA publications on NC development using ORCID and PUBMED as search engines. We thoroughly describe all of the contributions from LA, collected in five major topics on NC development mechanisms: i) induction and specification; ii) migration; iii) differentiation; iv) adult NC; and, v) neurocristopathies. Further analysis was done to correlate each LA country with topics and animal models, and to access collaboration between LA countries. We observed that some LA countries have made important contributions to the comprehension of NC development. Interestingly, some LA countries have a topic and an animal model as their strength; in addition, collaboration between LA countries is almost inexistent. This review will help LA NC research to be acknowledged, and to facilitate networking between students and researchers worldwide.
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Cerrizuela S, Vega-López GA, Palacio MB, Tríbulo C, Aybar MJ. Gli2 is required for the induction and migration of Xenopus laevis neural crest. Mech Dev 2018; 154:219-239. [PMID: 30086335 DOI: 10.1016/j.mod.2018.07.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 07/09/2018] [Accepted: 07/26/2018] [Indexed: 01/22/2023]
Abstract
The neural crest (NC) is a multipotent migratory embryonic population that is formed during late gastrulation and gives rise to a wide array of derivatives, including cells from the peripheral nervous system (PNS), the craniofacial bones and cartilages, peripheral glial cells, and melanocyte cells, among others. In this work we analyzed the role of the Hedgehog signaling pathway effector gli2 in Xenopus NC. We provide evidence that the gli2 gene is expressed in the prospective, premigratory and migratory NC. The use of a specific morpholino against gli2 and the pharmacological specific inhibitor GANT61 in different experimental approaches allowed us to determine that gli2 is required for the induction and specification of NC cells as a transcriptional activator. Moreover, gli2 also acts by reducing apoptosis in the NC without affecting its cell proliferation status. We also demonstrated that gli2 is required cell-autonomously for NC migration, and for the formation of NC derivatives such as the craniofacial cartilages, melanocytes and the cranial ganglia. Altogether, our results showed that gli2 is a key transcriptional activator to accomplish the proper specification and development of Xenopus NC cells.
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Affiliation(s)
- Santiago Cerrizuela
- Instituto Superior de Investigaciones Biológicas (INSIBIO, CONICET-UNT), San Miguel de Tucumán, Argentina.
| | - Guillermo A Vega-López
- Instituto Superior de Investigaciones Biológicas (INSIBIO, CONICET-UNT), San Miguel de Tucumán, Argentina; Instituto de Biología "Dr. Francisco D. Barbieri", Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, San Miguel de Tucumán, Argentina.
| | - María Belén Palacio
- Instituto Superior de Investigaciones Biológicas (INSIBIO, CONICET-UNT), San Miguel de Tucumán, Argentina
| | - Celeste Tríbulo
- Instituto Superior de Investigaciones Biológicas (INSIBIO, CONICET-UNT), San Miguel de Tucumán, Argentina; Instituto de Biología "Dr. Francisco D. Barbieri", Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, San Miguel de Tucumán, Argentina.
| | - Manuel J Aybar
- Instituto Superior de Investigaciones Biológicas (INSIBIO, CONICET-UNT), San Miguel de Tucumán, Argentina; Instituto de Biología "Dr. Francisco D. Barbieri", Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, San Miguel de Tucumán, Argentina.
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Liu M, Ran J, Zhou J. Non-canonical functions of the mitotic kinesin Eg5. Thorac Cancer 2018; 9:904-910. [PMID: 29927078 PMCID: PMC6068462 DOI: 10.1111/1759-7714.12792] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 05/24/2018] [Accepted: 05/24/2018] [Indexed: 01/25/2023] Open
Abstract
Kinesins are widely expressed, microtubule-dependent motors that play vital roles in microtubule-associated cellular activities, such as cell division and intracellular transport. Eg5, also known as kinesin-5 or kinesin spindle protein, is a member of the kinesin family that contributes to the formation and maintenance of the bipolar mitotic spindle during cell division. Small-molecule compounds that inhibit Eg5 activity have been shown to impair spindle assembly, block mitotic progression, and possess anti-cancer activity. Recent studies focusing on the localization and functions of Eg5 in plants have demonstrated that in addition to spindle organization, this motor protein has non-canonical functions, such as chromosome segregation and cytokinesis, that have not been observed in animals. In this review, we discuss the structure, function, and localization of Eg5 in various organisms, highlighting the specific role of this protein in plants. We also propose directions for the future studies of novel Eg5 functions based on the lessons learned from plants.
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Affiliation(s)
- Min Liu
- College of Life Sciences, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Institute of Biomedical Sciences, Shandong Provincial Key Laboratory of Animal Resistance BiologyShandong Normal UniversityJinanChina
| | - Jie Ran
- College of Life Sciences, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Institute of Biomedical Sciences, Shandong Provincial Key Laboratory of Animal Resistance BiologyShandong Normal UniversityJinanChina
| | - Jun Zhou
- College of Life Sciences, Collaborative Innovation Center of Cell Biology in Universities of Shandong, Institute of Biomedical Sciences, Shandong Provincial Key Laboratory of Animal Resistance BiologyShandong Normal UniversityJinanChina
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Martins SS, Wall MM, Eisenberg R, Blanco C, Santaella J, Ramos-Olazagasti M, Canino G, Bird HR, Brown Q, Duarte CS. Trajectories of Sensation Seeking Among Puerto Rican Children and Youth. J Am Acad Child Adolesc Psychiatry 2015; 54:1042-50. [PMID: 26598479 PMCID: PMC4660263 DOI: 10.1016/j.jaac.2015.09.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 09/25/2015] [Accepted: 09/28/2015] [Indexed: 10/22/2022]
Abstract
OBJECTIVE To document the natural course of sensation seeking from childhood to adolescence, characterize distinct sensation seeking trajectories, and examine how these trajectories vary according to selected predictors. METHOD Data were obtained from the Boricua Youth Study, a longitudinal study of 2,491 children and adolescents of Puerto Rican background (3 assessments from 2000 to 2004). First, age-specific sensation seeking levels were characterized, and then age-adjusted residuals were analyzed using growth mixture models. RESULTS On average, sensation seeking was stable in childhood (ages 5-10 years) and increased during adolescence (ages 11-17 years). Mean scores of sensation seeking were higher in the South Bronx versus Puerto Rico and among males versus females. Four classes of sensation seeking trajectories were observed: most study participants had age-expected sensation seeking trajectories following the average for their age ("normative," 43.8%); others (37.2%) remained consistently lower than the expected average for their age ("low" sensation seeking); some (12.0%) had an "accelerated" sensation seeking trajectory, increasing at a faster rate than expected; and a minority (7.0%) had a decreasing sensation seeking trajectory that started high but decreased, reaching scores slightly higher than the age-average sensation seeking scores ("stabilizers"). Site (South Bronx versus Puerto Rico) and gender were predictors of membership in a specific class of sensation seeking trajectory. CONCLUSION It is important to take a developmental approach when examining sensation seeking and to consider gender and the social environment when trying to understand how sensation seeking evolves during childhood and adolescence.
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Affiliation(s)
| | - Melanie M. Wall
- Columbia University and New York State Psychiatric Institute, New York
| | - Ruth Eisenberg
- Columbia University and New York State Psychiatric Institute, New York
| | - Carlos Blanco
- Columbia University and New York State Psychiatric Institute, New York
| | | | | | - Glorisa Canino
- Behavioral Sciences Research Institute, University of Puerto Rico School of Medicine, San Juan
| | - Hector R. Bird
- Columbia University and New York State Psychiatric Institute, New York
| | - Qiana Brown
- Columbia University, Mailman School of Public Health, New York
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Vega‐López GA, Bonano M, Tríbulo C, Fernández JP, Agüero TH, Aybar MJ. Functional analysis of
Hairy
genes in
Xenopus
neural crest initial specification and cell migration. Dev Dyn 2015; 244:988-1013. [DOI: 10.1002/dvdy.24295] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 04/25/2015] [Accepted: 05/14/2015] [Indexed: 01/28/2023] Open
Affiliation(s)
| | - Marcela Bonano
- Instituto Superior de Investigaciones Biológicas (INSIBIO), CONICET‐UNT
| | - Celeste Tríbulo
- Instituto Superior de Investigaciones Biológicas (INSIBIO), CONICET‐UNT
- Instituto de Biología “Dr. Francisco D. Barbieri”, Facultad de Bioquímica, Química y FarmaciaUniversidad Nacional de TucumánChacabuco San Miguel de Tucumán Argentina
| | - Juan P. Fernández
- Instituto Superior de Investigaciones Biológicas (INSIBIO), CONICET‐UNT
| | - Tristán H. Agüero
- Instituto Superior de Investigaciones Biológicas (INSIBIO), CONICET‐UNT
| | - Manuel J. Aybar
- Instituto Superior de Investigaciones Biológicas (INSIBIO), CONICET‐UNT
- Instituto de Biología “Dr. Francisco D. Barbieri”, Facultad de Bioquímica, Química y FarmaciaUniversidad Nacional de TucumánChacabuco San Miguel de Tucumán Argentina
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