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Escarcega-Bata A, Eugenia Zamudio-Resendiz M, Hernández-Rosas A, Luisa Núñez Resendiz M, Dreckmann KM, Sentíes A. First record of Grammatodinium (Dinophyceae) for the American Eastern Pacific coast: Morphological, molecular and ecological confirmation. Eur J Protistol 2023; 87:125942. [PMID: 36543065 DOI: 10.1016/j.ejop.2022.125942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 11/26/2022] [Accepted: 11/28/2022] [Indexed: 12/04/2022]
Abstract
Grammatodinium Li & Shin is a monospecific genus described from the Tongyeong Bay area in Korea. In the current study, we describe its presence in the American Eastern Pacific coast for the first time, particularly in Acapulco Bay, Mexico, using morphological, molecular and environmental data. Sequences generated in this study with SSU and LSU formed a monophyletic group with other sequences from GenBank belonging to Gr. tongyeonginum, the only species known for the genus; however, genetic distance values between this species and our specimens (8.5% SSU; 2.8% LSU) were equivalent or even greater than those reported in other genera of dinoflagellates. Our phylogeny clearly showed the relationship of Grammatodinium with the families Pyrocystaceae and Gonyaulacaceae. In our specimens, cells appeared individually and in colonies of up to 16 cells, which were observed mainly during the dry season, so they could be confused with Gymnodinium catenatum, a common dinoflagellate in Acapulco with which they can coexist and share their general appearance, but they are clearly differentiated by the presence of longitudinal furrows throughout the body and a yellowish-green coloration, both absent in Gymnodinium catenatum. Although our evidence strongly suggests the presence of a new species for the region, more detailed morphological examinations are needed to confirm this statement.
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Hamel Y, Mauvais FX, Pham HP, Kratzer R, Marchi C, Barilleau É, Waeckel-Enée E, Arnoux JB, Hartemann A, Cordier C, Mégret J, Rocha B, de Lonlay P, Beltrand J, Six A, Robert JJ, van Endert P. A unique CD8(+) T lymphocyte signature in pediatric type 1 diabetes. J Autoimmun 2016; 73:54-63. [PMID: 27318739 DOI: 10.1016/j.jaut.2016.06.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 06/01/2016] [Accepted: 06/08/2016] [Indexed: 12/16/2022]
Abstract
Human type 1 diabetes results from a destructive auto-reactive immune response in which CD8(+) T lymphocytes play a critical role. Given the intense ongoing efforts to develop immune intervention to prevent and/or cure the disease, biomarkers suitable for prediction of disease risk and progress, as well as for monitoring of immunotherapy are required. We undertook separate multi-parameter analyses of single naïve and activated/memory CD8(+) T lymphocytes from pediatric and adult patients, with the objective of identifying cellular profiles associated with onset of type 1 diabetes. We observe global perturbations in gene and protein expression and in the abundance of T cell populations characterizing pediatric but not adult patients, relative to age-matched healthy individuals. Pediatric diabetes is associated with a unique population of CD8(+) T lymphocytes co-expressing effector (perforin, granzyme B) and regulatory (transforming growth factor β, interleukin-10 receptor) molecules. This population persists after metabolic normalization and is especially abundant in children with high titers of auto-antibodies to glutamic acid decarboxylase and with elevated HbA1c values. These findings highlight striking differences between pediatric and adult type 1 diabetes, indicate prolonged large-scale perturbations in the CD8(+) T cell compartment in the former, and suggest that CD8(+)CD45RA(-) T cells co-expressing effector and regulatory factors are of interest as biomarkers in pediatric type 1 diabetes.
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Affiliation(s)
- Yamina Hamel
- Institut National de la Sante et de la Recherche Médicale, Unité 1151, 75015 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Faculté de médecine, 75015 Paris, France; Centre National de la Recherche Scientifique, UMR8253, 75015 Paris, France
| | - François-Xavier Mauvais
- Institut National de la Sante et de la Recherche Médicale, Unité 1151, 75015 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Faculté de médecine, 75015 Paris, France; Centre National de la Recherche Scientifique, UMR8253, 75015 Paris, France
| | - Hang-Phuong Pham
- Sorbonne Universités, UPMC Université Paris 6, 75015 Paris, France; Institut National de la Sante et de la Recherche Médicale, UMRS 959, Immunology-Immunopathology-Immunotherapy (i3), 75013 Paris, France
| | - Roland Kratzer
- Institut National de la Sante et de la Recherche Médicale, Unité 1151, 75015 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Faculté de médecine, 75015 Paris, France; Centre National de la Recherche Scientifique, UMR8253, 75015 Paris, France
| | - Christophe Marchi
- Institut National de la Sante et de la Recherche Médicale, Unité 1151, 75015 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Faculté de médecine, 75015 Paris, France; Centre National de la Recherche Scientifique, UMR8253, 75015 Paris, France
| | - Émilie Barilleau
- Institut National de la Sante et de la Recherche Médicale, Unité 1151, 75015 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Faculté de médecine, 75015 Paris, France; Centre National de la Recherche Scientifique, UMR8253, 75015 Paris, France
| | - Emmanuelle Waeckel-Enée
- Institut National de la Sante et de la Recherche Médicale, Unité 1151, 75015 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Faculté de médecine, 75015 Paris, France; Centre National de la Recherche Scientifique, UMR8253, 75015 Paris, France
| | - Jean-Baptiste Arnoux
- Université Paris Descartes, Sorbonne Paris Cité, Faculté de médecine, 75015 Paris, France; Centre de référence des Maladies Héréditaires du Métabolisme, Hôpital Necker, Assistance Publique-Hôpitaux de Paris, 75015 Paris, France
| | - Agnès Hartemann
- Université Pierre & Marie Curie, IHU ICAN, 75013 Paris, France; Service de Diabétologie, Hôpital de la Pitié-Salpétrière, Assistance Publique-Hôpitaux de Paris, 75013 Paris, France
| | - Corinne Cordier
- Institut National de la Sante et de la Recherche Médicale, US24, 75015 Paris, France; Centre National de la Recherche Scientifique, UMS3633, 75015 Paris, France
| | - Jerome Mégret
- Institut National de la Sante et de la Recherche Médicale, US24, 75015 Paris, France; Centre National de la Recherche Scientifique, UMS3633, 75015 Paris, France
| | - Benedita Rocha
- Institut National de la Sante et de la Recherche Médicale, Unité 1151, 75015 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Faculté de médecine, 75015 Paris, France; Centre National de la Recherche Scientifique, UMR8253, 75015 Paris, France
| | - Pascale de Lonlay
- Université Paris Descartes, Sorbonne Paris Cité, Faculté de médecine, 75015 Paris, France; Centre de référence des Maladies Héréditaires du Métabolisme, Hôpital Necker, Assistance Publique-Hôpitaux de Paris, 75015 Paris, France; Institut Imagine, Institut National de la Sante et de la Recherche Médicale, Unité 1163, 75015 Paris, France
| | - Jacques Beltrand
- Université Paris Descartes, Sorbonne Paris Cité, Faculté de médecine, 75015 Paris, France; Endocrinologie, Gynécologie et Diabétologie Pédiatrique, Hôpital Necker, Assistance Publique-Hôpitaux de Paris, 75015 Paris, France
| | - Adrien Six
- Sorbonne Universités, UPMC Université Paris 6, 75015 Paris, France; Institut National de la Sante et de la Recherche Médicale, UMRS 959, Immunology-Immunopathology-Immunotherapy (i3), 75013 Paris, France
| | - Jean-Jacques Robert
- Université Paris Descartes, Sorbonne Paris Cité, Faculté de médecine, 75015 Paris, France; Endocrinologie, Gynécologie et Diabétologie Pédiatrique, Hôpital Necker, Assistance Publique-Hôpitaux de Paris, 75015 Paris, France
| | - Peter van Endert
- Institut National de la Sante et de la Recherche Médicale, Unité 1151, 75015 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Faculté de médecine, 75015 Paris, France; Centre National de la Recherche Scientifique, UMR8253, 75015 Paris, France.
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Zhu H, Yu Y, Zheng L, Wang L, Li C, Yu J, Wei J, Wang C, Zhang J, Xu S, Wei X, Cui W, Wang Q, Chen X. Chronic inflammatory pain upregulates expression of P2Y2 receptor in small-diameter sensory neurons. Metab Brain Dis 2015; 30:1349-58. [PMID: 26062804 DOI: 10.1007/s11011-015-9695-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 06/01/2015] [Indexed: 11/28/2022]
Abstract
Roles of ionotropic purinergic (P2X) receptors in chronic pain have been intensively investigated. However, the contribution of metabotropic purinergic (P2Y) receptors to pathological pain is controversial. In the present study, using single cell RT-PCR (reverse transcription-polymerase chain reaction) and single cell nested-PCR techniques, we examined the expression of P2X(2), P2X(3), P2Y(1) and P2Y(2) mRNA transcripts in retrogradely labeled cutaneous sensory neurons from mouse lumber dorsal root ganglia (DRGs) following peripheral inflammation. The percentage of cutaneous sensory neurons expressing P2Y(2) mRNA transcripts increased after complete Freund's adjuvant (CFA) treatment. Particularly, the P2Y(2) mRNA transcripts were more frequently detected in small-diameter cutaneous neurons from CFA-treated mice than those from control mice. Coexpression of P2Y(2) and P2X (P2X(2) or P2X(3)) mRNAs was more frequently observed in cutaneous sensory neurons from CFA-treated mice relative to controls. Pain behavioral tests showed that the blockade of P2Y receptors by suramin attenuated mechanical allodynia evoked either by CFA or uridine triphosphate (UTP), an endogenous P2Y(2) and P2Y(4) agonist. These results suggest that chronic inflammatory pain enhances expression of P2Y(2) receptor in peripheral sensory neurons that innervate the injured tissue and the activation of P2Y receptors contributes to mechanical allodynia following inflammation.
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MESH Headings
- Animals
- Arthritis, Experimental/metabolism
- Arthritis, Experimental/psychology
- Behavior, Animal
- Chronic Pain/etiology
- Chronic Pain/metabolism
- Chronic Pain/psychology
- Ganglia, Spinal/cytology
- Ganglia, Spinal/metabolism
- Hyperalgesia/chemically induced
- Hyperalgesia/metabolism
- Hyperalgesia/psychology
- Inflammation/complications
- Inflammation/metabolism
- Inflammation/psychology
- Mice
- Mice, Inbred ICR
- Nociception
- RNA, Messenger/biosynthesis
- RNA, Messenger/genetics
- Receptors, Purinergic P2Y/biosynthesis
- Receptors, Purinergic P2Y/genetics
- Receptors, Purinergic P2Y2/biosynthesis
- Receptors, Purinergic P2Y2/genetics
- Sensory Receptor Cells/metabolism
- Sensory Receptor Cells/pathology
- Skin/innervation
- Up-Regulation
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Affiliation(s)
- Huiqin Zhu
- Ningbo Key Laboratory of Behavioral Neuroscience, Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, 315211, China
| | - Yi Yu
- Ningbo Key Laboratory of Behavioral Neuroscience, Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, 315211, China
| | - Lingyan Zheng
- Ningbo Key Laboratory of Behavioral Neuroscience, Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, 315211, China
| | - Lu Wang
- Ningbo Key Laboratory of Behavioral Neuroscience, Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, 315211, China
| | - Chenli Li
- Ningbo Key Laboratory of Behavioral Neuroscience, Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, 315211, China
| | - Jiangyuan Yu
- Ningbo Key Laboratory of Behavioral Neuroscience, Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, 315211, China
| | - Jing Wei
- Ningbo Key Laboratory of Behavioral Neuroscience, Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, 315211, China
| | - Chuang Wang
- Ningbo Key Laboratory of Behavioral Neuroscience, Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, 315211, China
| | - Junfang Zhang
- Ningbo Key Laboratory of Behavioral Neuroscience, Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, 315211, China
| | - Shujun Xu
- Ningbo Key Laboratory of Behavioral Neuroscience, Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, 315211, China
| | - Xiaofei Wei
- Ningbo Key Laboratory of Behavioral Neuroscience, Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, 315211, China
| | - Wei Cui
- Ningbo Key Laboratory of Behavioral Neuroscience, Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, 315211, China
| | - Qinwen Wang
- Ningbo Key Laboratory of Behavioral Neuroscience, Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, 315211, China
| | - Xiaowei Chen
- Ningbo Key Laboratory of Behavioral Neuroscience, Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, 315211, China.
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Chandran Y, Kang NY, Park SJ, Husen Alamudi S, Kim JY, Sahu S, Su D, Lee J, Vendrell M, Chang YT. A highly selective fluorescent probe for direct detection and isolation of mouse embryonic stem cells. Bioorg Med Chem Lett 2015; 25:4862-4865. [PMID: 26115574 PMCID: PMC4613884 DOI: 10.1016/j.bmcl.2015.06.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 06/08/2015] [Accepted: 06/09/2015] [Indexed: 02/06/2023]
Abstract
Stem cell research has gathered immense attention in the past decade due to the remarkable ability of stem cells for self-renewal and tissue-specific differentiation. Despite having numerous advancements in stem cell isolation and manipulation techniques, there is a need for highly reliable probes for the specific detection of live stem cells. Herein we developed a new fluorescence probe (CDy9) with high selectivity for mouse embryonic stem cells. CDy9 allows the detection and isolation of intact stem cells with marginal impact on their function and capabilities.
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Affiliation(s)
- Yogeswari Chandran
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research, 11 Biopolis Way, #02-02 Helios, Singapore 138667, Singapore
| | - Nam-Young Kang
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research, 11 Biopolis Way, #02-02 Helios, Singapore 138667, Singapore
| | - Sung-Jin Park
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research, 11 Biopolis Way, #02-02 Helios, Singapore 138667, Singapore
| | - Samira Husen Alamudi
- Department of Chemistry & MedChem Program, Life Sciences Institute, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Jun-Young Kim
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research, 11 Biopolis Way, #02-02 Helios, Singapore 138667, Singapore
| | - Srikanta Sahu
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research, 11 Biopolis Way, #02-02 Helios, Singapore 138667, Singapore
| | - Dongdong Su
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research, 11 Biopolis Way, #02-02 Helios, Singapore 138667, Singapore
| | - Jungyeol Lee
- Department of Chemistry & MedChem Program, Life Sciences Institute, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Marc Vendrell
- MRC Centre for Inflammation Research, The University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, United Kingdom.
| | - Young-Tae Chang
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research, 11 Biopolis Way, #02-02 Helios, Singapore 138667, Singapore; Department of Chemistry & MedChem Program, Life Sciences Institute, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
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5
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Murugan R, Imkeller K, Busse CE, Wardemann H. Direct high-throughput amplification and sequencing of immunoglobulin genes from single human B cells. Eur J Immunol 2015; 45:2698-700. [PMID: 26138551 PMCID: PMC5008140 DOI: 10.1002/eji.201545526] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 05/05/2015] [Accepted: 06/29/2015] [Indexed: 11/12/2022]
Affiliation(s)
- Rajagopal Murugan
- Research Group Molecular Immunology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Katharina Imkeller
- Research Group Molecular Immunology, Max Planck Institute for Infection Biology, Berlin, Germany.,Division of B Cell Immunology, German Cancer Research Center, Heidelberg, Germany
| | - Christian E Busse
- Research Group Molecular Immunology, Max Planck Institute for Infection Biology, Berlin, Germany.,Division of B Cell Immunology, German Cancer Research Center, Heidelberg, Germany
| | - Hedda Wardemann
- Research Group Molecular Immunology, Max Planck Institute for Infection Biology, Berlin, Germany.,Division of B Cell Immunology, German Cancer Research Center, Heidelberg, Germany
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Mouawia H. Genotyping analysis of circulating fetal cells reveals high frequency of vanishing twin following transfer of multiple embryos. Avicenna J Med Biotechnol 2013; 5:125-32. [PMID: 23799181 PMCID: PMC3689556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2012] [Accepted: 01/08/2013] [Indexed: 10/28/2022] Open
Abstract
BACKGROUND Detection of Circulating Fetal Trophoblastic Cells (CFTC) by single cell genotyping not only allows to identify fetal cells from maternal blood, but also to characterize their bi-parental genome. METHODS We have tested intact fetal trophoblastes recovered at 4th to 10th weeks of gestation (WG) from blood (10 ml per mother) of 13 women after In Vitro Fertilization (IVF) and transfer of one or several embryos. Large cells isolated from blood were individually microdissected and studied by genetic fingerprinting with a mean number of 3 Short Tandem Repeats (STR) markers, known to be informative by testing paternal and maternal blood DNA. RESULTS CFTC were found in all mothers starting from the 5th WG. A mean number of 2.5 CFTC per ml of blood was found in all the analyzed samples collected at the different terms of pregnancy. All mothers who received the transfer of two or three embryos, including one who delivered twins and one with vanishing twin (identified by ultrasounds), were found to have CFTC with two or three different bi-parental genotypes, belonging to different embryos derived from the same parents. CONCLUSION CFTC circulation is detectable starting from the 5th WG. A "vanishing twin" phenomenon frequently develops after IVF and transfer of multiple embryos, being undetectable by ultrasounds and revealed by genetic CFTC fingerprinting.
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Affiliation(s)
- Hussein Mouawia
- Department of Biology, Faculty of Science, Lebanese University, Beirut, Lebanon,Paris Descartes University, Paris, France,Corresponding author: Hussein Mouawia, Ph.D., Department of Biology, Faculty of Science Lebanese University Beirut, Lebanon. Tel: +96 13786535. E-mail:
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