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García-España A, Philips MR. Origin and Evolution of RAS Membrane Targeting. Oncogene 2023; 42:1741-1750. [PMID: 37031342 PMCID: PMC10413328 DOI: 10.1038/s41388-023-02672-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/08/2023] [Accepted: 03/15/2023] [Indexed: 04/10/2023]
Abstract
KRAS, HRAS and NRAS proto-oncogenes belong to a family of 40 highly homologous genes, which in turn are a subset of a superfamily of >160 genes encoding small GTPases. RAS proteins consist of a globular G-domain (aa1-166) and a 22-23 aa unstructured hypervariable region (HVR) that mediates membrane targeting. The evolutionary origins of the RAS isoforms, their HVRs and alternative splicing of the KRAS locus has not been explored. We found that KRAS is basal to the RAS proto-oncogene family and its duplication generated HRAS in the common ancestor of vertebrates. In a second round of duplication HRAS generated NRAS and KRAS generated an additional RAS gene we have designated KRASBL, absent in mammals and birds. KRAS4A arose through a duplication and insertion of the 4th exon of NRAS into the 3rd intron of KRAS. We found evolutionary conservation of a short polybasic region (PBR1) in HRAS, NRAS and KRAS4A, a second polybasic region (PBR2) in KRAS4A, two neutralized basic residues (NB) and a serine in KRAS4B and KRASBL, and a modification of the CaaX motif in vertebrates with farnesyl rather than geranylgeranyl polyisoprene lipids, suggesting that a less hydrophobic membrane anchor is critical to RAS protein function. The persistence of four RAS isoforms through >400 million years of evolution argues strongly for differential function.
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Affiliation(s)
| | - Mark R Philips
- Perlmutter Cancer Center, New York University Grossman School of Medicine, New York, NY, USA.
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2
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Munipalli SB, Yenugu S. Uroplakin 1a Knockout Mice Display Marginal Reduction in Fecundity, Decreased Bacterial Clearance Capacity, and Drastic Changes in the Testicular Transcriptome. Reprod Sci 2023; 30:914-927. [PMID: 36042152 DOI: 10.1007/s43032-022-01057-z] [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: 04/25/2022] [Accepted: 08/02/2022] [Indexed: 10/14/2022]
Abstract
Uroplakins (UPKs) form physical and chemical barriers in the bladder and other urinary tract tissues. We previously reported the identification and localization of UPKs in the male reproductive tract of rat. In this study, we characterized Upk1a knockout mice and report a marginal reduction in fecundity associated with significant decrease in sperm count. Upk1a mice had lower bacterial clearance capacity when challenged with uropathogenic Escherichia coli for 1 to 5 days. High-throughput analyses of testicular transcriptome indicated that 1128 genes that are expressed in testis of wild-type mice were completely absent in the knockout, while 2330 genes were found to be expressed only in the testis of knockout mice. Furthermore, differential regulation of 148 (67 upregulated and 81 downregulated) was observed. Gene ontology analyses indicated that processes related to integral components of membrane (plasma membrane), G-protein receptor activity and signaling, olfactory receptor activity and perception of smell, organization of extracellular space/region, immune and inflammatory responses to pathogens, spermatid development, meiotic cell cycle, and formation of synaptonemal complex were affected. Results of this study provide evidence on the possible multi-functional role of Upk1a in male reproductive tract and in other tissues as well.
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Affiliation(s)
| | - Suresh Yenugu
- Department of Animal Biology, University of Hyderabad, Hyderabad, 500046, India.
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3
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The Golgi complex: An organelle that determines urothelial cell biology in health and disease. Histochem Cell Biol 2022; 158:229-240. [PMID: 35773494 PMCID: PMC9399047 DOI: 10.1007/s00418-022-02121-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/24/2022] [Indexed: 12/05/2022]
Abstract
The Golgi complex undergoes considerable structural remodeling during differentiation of urothelial cells in vivo and in vitro. It is known that in a healthy bladder the differentiation from the basal to the superficial cell layer leads to the formation of the tightest barrier in our body, i.e., the blood–urine barrier. In this process, urothelial cells start expressing tight junctional proteins, apical membrane lipids, surface glycans, and integral membrane proteins, the uroplakins (UPs). The latter are the most abundant membrane proteins in the apical plasma membrane of differentiated superficial urothelial cells (UCs) and, in addition to well-developed tight junctions, contribute to the permeability barrier by their structural organization and by hindering endocytosis from the apical plasma membrane. By studying the transport of UPs, we were able to demonstrate their differentiation-dependent effect on the Golgi architecture. Although fragmentation of the Golgi complex is known to be associated with mitosis and apoptosis, we found that the process of Golgi fragmentation is required for delivery of certain specific urothelial differentiation cargoes to the plasma membrane as well as for cell–cell communication. In this review, we will discuss the currently known contribution of the Golgi complex to the formation of the blood–urine barrier in normal UCs and how it may be involved in the loss of the blood–urine barrier in cancer. Some open questions related to the Golgi complex in the urothelium will be highlighted.
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Dalghi MG, Montalbetti N, Carattino MD, Apodaca G. The Urothelium: Life in a Liquid Environment. Physiol Rev 2020; 100:1621-1705. [PMID: 32191559 PMCID: PMC7717127 DOI: 10.1152/physrev.00041.2019] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 03/02/2020] [Accepted: 03/14/2020] [Indexed: 02/08/2023] Open
Abstract
The urothelium, which lines the renal pelvis, ureters, urinary bladder, and proximal urethra, forms a high-resistance but adaptable barrier that surveils its mechanochemical environment and communicates changes to underlying tissues including afferent nerve fibers and the smooth muscle. The goal of this review is to summarize new insights into urothelial biology and function that have occurred in the past decade. After familiarizing the reader with key aspects of urothelial histology, we describe new insights into urothelial development and regeneration. This is followed by an extended discussion of urothelial barrier function, including information about the roles of the glycocalyx, ion and water transport, tight junctions, and the cellular and tissue shape changes and other adaptations that accompany expansion and contraction of the lower urinary tract. We also explore evidence that the urothelium can alter the water and solute composition of urine during normal physiology and in response to overdistension. We complete the review by providing an overview of our current knowledge about the urothelial environment, discussing the sensor and transducer functions of the urothelium, exploring the role of circadian rhythms in urothelial gene expression, and describing novel research tools that are likely to further advance our understanding of urothelial biology.
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Affiliation(s)
- Marianela G Dalghi
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Nicolas Montalbetti
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Marcelo D Carattino
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Gerard Apodaca
- Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
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5
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Jankovičová J, Neuerová Z, Sečová P, Bartóková M, Bubeníčková F, Komrsková K, Postlerová P, Antalíková J. Tetraspanins in mammalian reproduction: spermatozoa, oocytes and embryos. Med Microbiol Immunol 2020; 209:407-425. [PMID: 32424440 DOI: 10.1007/s00430-020-00676-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 05/02/2020] [Indexed: 12/21/2022]
Abstract
It is known that tetraspanin proteins are involved in many physiological somatic cell mechanisms. Additionally, research has indicated they also have a role in various infectious diseases and cancers. This review focuses on the molecular interactions underlying the tetraspanin web formation in gametes. Primarily, tetraspanins act in the reproductive tract as organizers of membrane complexes, which include the proteins involved in the contact and association of sperm and oocyte membranes. In addition, recent data shows that tetraspanins are likely to be involved in these processes in a complex way. In mammalian fertilization, an important role is attributed to CD molecules belonging to the tetraspanin superfamily, particularly CD9, CD81, CD151, and also CD63; mostly as part of extracellular vesicles, the significance of which and their potential in reproduction is being intensively investigated. In this article, we reviewed the existing knowledge regarding the expression of tetraspanins CD9, CD81, CD151, and CD63 in mammalian spermatozoa, oocytes, and embryos and their involvement in reproductive processes, including pathological events.
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Affiliation(s)
- Jana Jankovičová
- Laboratory of Reproductive Physiology, Center of Biosciences, Institute of Animal Biochemistry and Genetics, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Zdeňka Neuerová
- Laboratory of Reproductive Biology, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV, Vestec, Czech Republic
- Faculty of Science, University of Hradec Králové, Hradec Králové, Czech Republic
| | - Petra Sečová
- Laboratory of Reproductive Physiology, Center of Biosciences, Institute of Animal Biochemistry and Genetics, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Michaela Bartóková
- Laboratory of Reproductive Physiology, Center of Biosciences, Institute of Animal Biochemistry and Genetics, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Filipa Bubeníčková
- Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic
| | - Kateřina Komrsková
- Laboratory of Reproductive Biology, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV, Vestec, Czech Republic
- Department of Zoology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Pavla Postlerová
- Laboratory of Reproductive Biology, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV, Vestec, Czech Republic
- Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic
| | - Jana Antalíková
- Laboratory of Reproductive Physiology, Center of Biosciences, Institute of Animal Biochemistry and Genetics, Slovak Academy of Sciences, Bratislava, Slovak Republic.
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Sato K, Tokmakov AA. Toward the understanding of biology of oocyte life cycle in Xenopus Laevis: No oocytes left behind. Reprod Med Biol 2020; 19:114-119. [PMID: 32273815 PMCID: PMC7138939 DOI: 10.1002/rmb2.12314] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 12/09/2019] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND For the past more than 25 years, we have been focusing on the developmental and reproductive biology of the female gametes, oocytes, and eggs, of the African clawed frog Xenopus laevis. METHODS The events associated with the life cycle of these cells can be classified into the four main categories: first, oogenesis and cell growth in the ovary during the first meiotic arrest; second, maturation and ovulation that occur simultaneously and result in the acquisition of fertilization competence and the second meiotic arrest; third, fertilization, that is sperm-induced transition from egg to zygote; and fourth, egg death after spontaneous activation in the absence of fertilizing sperm. MAIN FINDINGS Our studies have demonstrated that signal transduction system involving tyrosine kinase Src and other oocyte/egg membrane-associated molecules such as uroplakin III and some other cytoplasmic proteins such as mitogen-activated protein kinase (MAPK) play important roles for successful ovulation, maturation, fertilization, and initiation of embryonic development. CONCLUSION We summarize recent advances in understanding cellular and molecular mechanisms underlying life cycle events of the oocytes and eggs. Our further intention is to discuss and predict potentially promising impact of the recent findings on the challenges facing reproductive biology and medicine, as well as societal contexts.
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Affiliation(s)
- Ken‐ichi Sato
- Laboratory of Cell Signaling and DevelopmentDepartment of Industrial Life SciencesFaculty of Life SciencesKyoto Sangyo UniversityKyotoJapan
| | - Alexander A. Tokmakov
- Laboratory of Cell Signaling and DevelopmentDepartment of Industrial Life SciencesFaculty of Life SciencesKyoto Sangyo UniversityKyotoJapan
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7
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Liao Y, Tham DKL, Liang FX, Chang J, Wei Y, Sudhir PR, Sall J, Ren SJ, Chicote JU, Arnold LL, Hu CCA, Romih R, Andrade LR, Rindler MJ, Cohen SM, DeSalle R, Garcia-España A, Ding M, Wu XR, Sun TT. Mitochondrial lipid droplet formation as a detoxification mechanism to sequester and degrade excessive urothelial membranes. Mol Biol Cell 2019; 30:2969-2984. [PMID: 31577526 PMCID: PMC6857570 DOI: 10.1091/mbc.e19-05-0284] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
The apical surface of the terminally differentiated mammalian urothelial umbrella cell is mechanically stable and highly impermeable, in part due to its coverage by urothelial plaques consisting of 2D crystals of uroplakin particles. The mechanism for regulating the uroplakin/plaque level is unclear. We found that genetic ablation of the highly tissue-specific sorting nexin Snx31, which localizes to plaques lining the multivesicular bodies (MVBs) in urothelial umbrella cells, abolishes MVBs suggesting that Snx31 plays a role in stabilizing the MVB-associated plaques by allowing them to achieve a greater curvature. Strikingly, Snx31 ablation also induces a massive accumulation of uroplakin-containing mitochondria-derived lipid droplets (LDs), which mediate uroplakin degradation via autophagy/lipophagy, leading to the loss of apical and fusiform vesicle plaques. These results suggest that MVBs play an active role in suppressing the excessive/wasteful endocytic degradation of uroplakins. Failure of this suppression mechanism triggers the formation of mitochondrial LDs so that excessive uroplakin membranes can be sequestered and degraded. Because mitochondrial LD formation, which occurs at a low level in normal urothelium, can also be induced by disturbance in uroplakin polymerization due to individual uroplakin knockout and by arsenite, a bladder carcinogen, this pathway may represent an inducible, versatile urothelial detoxification mechanism.
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Affiliation(s)
- Yi Liao
- Department of Cell Biology, New York University School of Medicine, New York, NY10016
| | - Daniel K L Tham
- Department of Cell Biology, New York University School of Medicine, New York, NY10016
| | - Feng-Xia Liang
- Department of Cell Biology, New York University School of Medicine, New York, NY10016
| | - Jennifer Chang
- Department of Cell Biology, New York University School of Medicine, New York, NY10016
| | - Yuan Wei
- Department of Cell Biology, New York University School of Medicine, New York, NY10016
| | - Putty-Reddy Sudhir
- Department of Cell Biology, New York University School of Medicine, New York, NY10016
| | - Joseph Sall
- Department of Cell Biology, New York University School of Medicine, New York, NY10016
| | - Sarah J Ren
- Department of Cell Biology, New York University School of Medicine, New York, NY10016
| | - Javier U Chicote
- Research Unit, Hospital Joan XXIII, Institut de Investigacio Sanitaria Pere Virgili (IISPV), Universitat Rovira i Virgili, Tarragona 43007, Spain
| | - Lora L Arnold
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE 68198
| | - Chih-Chi Andrew Hu
- The Wistar Institute, University of Pennsylvania, Philadelphia, PA 19104
| | - Rok Romih
- Institute of Cell Biology, Faculty of Medicine, University of Ljubljana, SI-1000 Ljubljana, Slovenia
| | | | - Michael J Rindler
- Department of Cell Biology, New York University School of Medicine, New York, NY10016
| | - Samuel M Cohen
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE 68198
| | - Rob DeSalle
- Sackler Institute for Comparative Genomics, American Museum of Natural History, New York, NY 10024
| | - Antonio Garcia-España
- Research Unit, Hospital Joan XXIII, Institut de Investigacio Sanitaria Pere Virgili (IISPV), Universitat Rovira i Virgili, Tarragona 43007, Spain
| | - Mingxiao Ding
- College of Life Sciences, Peking University, Dachengfang, Haidian, Beijing 100871, China
| | - Xue-Ru Wu
- Department of Urology, New York University School of Medicine, New York, NY10016.,Department of Pathology, New York University School of Medicine, New York, NY10016.,Veterans Affairs Medical Center, New York, NY 10010
| | - Tung-Tien Sun
- Department of Cell Biology, New York University School of Medicine, New York, NY10016.,Department of Urology, New York University School of Medicine, New York, NY10016.,Department of Biochemistry and Molecular Pharmacology, New York University School of Medicine, New York, NY10016.,Department of Dermatology, New York University School of Medicine, New York, NY10016
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8
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Babu Munipalli S, Yenugu S. Uroplakin expression in the male reproductive tract of rat. Gen Comp Endocrinol 2019; 281:153-163. [PMID: 31181195 DOI: 10.1016/j.ygcen.2019.06.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 05/29/2019] [Accepted: 06/06/2019] [Indexed: 02/08/2023]
Abstract
Uroplakins (UPKs) play an important role in the normal and pathophysiology of the urothelium. They protect the urothelium and play a crucial role during urothelial infections by Uropathogenic E. coli. However, their functions beyond this organ system remain unexplored. A wide variety of proteins secreted in the male reproductive tract tissues contribute to spermatogenesis, sperm maturation, fertilization and innate immunity. However, the presence of UPKs and their possible contribution to the male reproductive tract physiology is not yet reported. Hence, in this study, we characterized UPKs in the male reproductive tract of rats. To the best of our knowledge, for the first time, we report the expression of UPKs in the male reproductive system. Upk1a, Upk1b, Upk2 and Upk3b mRNA and their corresponding proteins were abundantly expressed in the caput, cauda, testis, seminal vesicles and the prostate. Their expression was not developmentally regulated. UPK protein expression was also localized on the spermatozoa, suggesting a role for these proteins in sperm function. To study the role of UPKs in innate immunity, Upk mRNA expression in response to endotoxin challenge was evaluated in vitro and in vivo. In the rat testicular and epididymal cell lines, Upk mRNA levels increased in response to lipopolysaccharide challenge. However, in the caput, cauda, testes, seminal vesicle and prostate obtained from LPS treated rats, Upk mRNA expression was significantly reduced. Results of this study indicate a role for UPKs in male reproductive physiology and innate immune responses.
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Affiliation(s)
| | - Suresh Yenugu
- Department of Animal Biology, University of Hyderabad, Hyderabad 500046, India.
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9
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Jimenez-Jimenez S, Santana O, Lara-Rojas F, Arthikala MK, Armada E, Hashimoto K, Kuchitsu K, Salgado S, Aguirre J, Quinto C, Cárdenas L. Differential tetraspanin genes expression and subcellular localization during mutualistic interactions in Phaseolus vulgaris. PLoS One 2019; 14:e0219765. [PMID: 31437164 PMCID: PMC6705802 DOI: 10.1371/journal.pone.0219765] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 07/01/2019] [Indexed: 12/19/2022] Open
Abstract
Arbuscular mycorrhizal fungi and rhizobia association with plants are two of the most successful plant-microbe associations that allow the assimilation of P and N by plants, respectively. These mutualistic interactions require a molecular dialogue, i.e., legume roots exude flavonoids or strigolactones which induce the Nod factors or Myc factors synthesis and secretion from the rhizobia or fungi, respectively. These Nod or Myc factors trigger several responses in the plant root, including calcium oscillations, and reactive oxygen species (ROS). Furthermore, superoxide and H2O2 have emerged as key components that regulate the transitions from proliferation to differentiation in the plant meristems. Similar to the root meristem, the nodule meristem accumulates superoxide and H2O2. Tetraspanins are transmembrane proteins that organize into tetraspanin web regions, where they recruit specific proteins into platforms required for signal transduction, membrane fusion, cell trafficking and ROS generation. Plant tetraspanins are scaffolding proteins associated with root radial patterning, biotic and abiotic stress responses, cell fate determination, and hormonal regulation and recently have been reported as a specific marker of exosomes in animal and plant cells and key players at the site of plant fungal infection. In this study, we conducted transcriptional profiling of the tetraspanin family in common bean (Phaseolus vulgaris L. var. Negro Jamapa) to determine the specific expression patterns and subcellular localization of tetraspanins during nodulation or under mycorrhizal association. Our results demonstrate that the tetraspanins are transcriptionally modulated during the mycorrhizal association, but are also expressed in the infection thread and nodule meristem development. Subcellular localization indicates that tetraspanins have a key role in vesicular trafficking, cell division, and root hair polar growth.
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Affiliation(s)
- Saul Jimenez-Jimenez
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - Olivia Santana
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - Fernando Lara-Rojas
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - Manoj-Kumar Arthikala
- Ciencias Agrogenómicas, Escuela Nacional de Estudios Superiores Unidad León-Universidad Nacional Autónoma de México, León, Guanajuato, México
| | - Elisabeth Armada
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - Kenji Hashimoto
- Department of Applied Biological Science, Tokyo University of Science, Yamazaki, Noda, Chiba, Japan
| | - Kazuyuki Kuchitsu
- Department of Applied Biological Science, Tokyo University of Science, Yamazaki, Noda, Chiba, Japan
| | - Sandra Salgado
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - Jesús Aguirre
- Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Carmen Quinto
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - Luis Cárdenas
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
- * E-mail:
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10
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Jimenez-Jimenez S, Hashimoto K, Santana O, Aguirre J, Kuchitsu K, Cárdenas L. Emerging roles of tetraspanins in plant inter-cellular and inter-kingdom communication. PLANT SIGNALING & BEHAVIOR 2019; 14:e1581559. [PMID: 30829110 PMCID: PMC6512927 DOI: 10.1080/15592324.2019.1581559] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Inter-cellular and inter-kingdom signaling systems of various levels of complexity regulate pathogenic and mutualistic interactions between bacteria, parasites, and fungi and animal and plant hosts. Inter-kingdom interactions between mutualistic bacteria such as rhizobia and legumes during nodulation and between fungi and plants during mycorrhizal associations, are characterized by the extensive exchange of molecular signals, which allow nitrogen and phosphate assimilation, respectively. A novel aspect of this signaling exchange is the existence of specific structures, the exosomes, that carry important molecules that shape the plant-pathogen interactions. Exosomes contain a wide array of molecules, such as lipids, proteins, messenger RNA, and microRNAs, that play important roles in cell-to-cell communication in animal and plant cells by affecting gene expression and other physiological activity in distant cells within the same organism (e.g., during cancer metastases and neuron injuries). In plant cells, it has been recently reported that exosomes go beyond organism boundaries and inhibit a pathogenic interaction in plants. Plant produce and send exosomes loaded with specific small miRNA which inhibit the pathogen infection, but the pathogen can also produce exosomes carrying pro-pathogenic proteins and microRNAs. Therefore, exosomes are the important bridge regulating the signal exchange. Exosomes are small membrane-bound vesicles derived from multivesicular bodies (MVBs), which carries selected cargos from the cytoplasm (protein, lipids, and microRNAs) and under certain circumstances, they fuse with the plasma membrane, releasing the small vesicles as cargo-carrying exosomes into the extracellular space during intercellular and inter-kingdom communication. Animal and plant proteomic studies have demonstrated that tetraspanin proteins are an integral part of exosome membranes, positioning tetraspanins as essential components for endosome organization, with key roles in membrane fusion, cell trafficking, and membrane recognition. We discuss the similarities and differences between animal tetraspanins and plant tetraspanins formed during plant-microbe interactions and their potential role in mutualistic communication.
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Affiliation(s)
- Saul Jimenez-Jimenez
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, México
| | - Kenji Hashimoto
- Department of Applied Biological Science, Tokyo University of Science, Noda, Japan
| | - Olivia Santana
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, México
| | - Jesús Aguirre
- Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Ciudad de México
| | - Kazuyuki Kuchitsu
- Department of Applied Biological Science, Tokyo University of Science, Noda, Japan
| | - Luis Cárdenas
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, México
- CONTACT Luis Cárdenas Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, México
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11
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Liao Y, Chang HC, Liang FX, Chung PJ, Wei Y, Nguyen TP, Zhou G, Talebian S, Krey LC, Deng FM, Wong TW, Chicote JU, Grifo JA, Keefe DL, Shapiro E, Lepor H, Wu XR, DeSalle R, Garcia-España A, Kim SY, Sun TT. Uroplakins play conserved roles in egg fertilization and acquired additional urothelial functions during mammalian divergence. Mol Biol Cell 2018; 29:3128-3143. [PMID: 30303751 PMCID: PMC6340209 DOI: 10.1091/mbc.e18-08-0496] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Uroplakin (UP) tetraspanins and their associated proteins are major mammalian urothelial differentiation products that form unique two-dimensional crystals of 16-nm particles (“urothelial plaques”) covering the apical urothelial surface. Although uroplakins are highly expressed only in mammalian urothelium and are often referred to as being urothelium specific, they are also expressed in several mouse nonurothelial cell types in stomach, kidney, prostate, epididymis, testis/sperms, and ovary/oocytes. In oocytes, uroplakins colocalize with CD9 on cell-surface and multivesicular body-derived exosomes, and the cytoplasmic tail of UPIIIa undergoes a conserved fertilization-dependent, Fyn-mediated tyrosine phosphorylation that also occurs in Xenopus laevis eggs. Uroplakin knockout and antibody blocking reduce mouse eggs’ fertilization rate in in vitro fertilization assays, and UPII/IIIa double-knockout mice have a smaller litter size. Phylogenetic analyses showed that uroplakin sequences underwent significant mammal-specific changes. These results suggest that, by mediating signal transduction and modulating membrane stability that do not require two-dimensional-crystal formation, uroplakins can perform conserved and more ancestral fertilization functions in mouse and frog eggs. Uroplakins acquired the ability to form two-dimensional-crystalline plaques during mammalian divergence, enabling them to perform additional functions, including umbrella cell enlargement and the formation of permeability and mechanical barriers, to protect/modify the apical surface of the modern-day mammalian urothelium.
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Affiliation(s)
- Yi Liao
- Department of Cell Biology, New York University School of Medicine, New York, NY 10016
| | - Hung-Chi Chang
- Department of Obstetrics and Gynecology, New York University School of Medicine, New York, NY 10016.,Department of Obstetrics and Gynecology, National Taiwan University, Taipei 10617, Taiwan
| | - Feng-Xia Liang
- Department of Cell Biology, New York University School of Medicine, New York, NY 10016
| | | | - Yuan Wei
- Department of Cell Biology, New York University School of Medicine, New York, NY 10016
| | - Tuan-Phi Nguyen
- Department of Cell Biology, New York University School of Medicine, New York, NY 10016
| | - Ge Zhou
- Regeneron, Tarrytown, NY 10591
| | - Sheeva Talebian
- Department of Obstetrics and Gynecology, New York University School of Medicine, New York, NY 10016
| | - Lewis C Krey
- Department of Obstetrics and Gynecology, New York University School of Medicine, New York, NY 10016
| | - Fang-Ming Deng
- Department of Pathology, New York University School of Medicine, New York, NY 10016.,Department of Urology, New York University School of Medicine, New York, NY 10016
| | - Tak-Wah Wong
- Department of Dermatology, National Cheng Kung University, Tainan 701, Taiwan
| | - Javier U Chicote
- Unitat De Recerca, Hospital Joan XXIII, Institut de Investigacio Sanitaria Pere Virgili (IISPV), Universitat Rovira i Virgili, Tarragona 43007, Spain
| | - James A Grifo
- Department of Obstetrics and Gynecology, New York University School of Medicine, New York, NY 10016
| | - David L Keefe
- Department of Obstetrics and Gynecology, New York University School of Medicine, New York, NY 10016
| | - Ellen Shapiro
- Department of Urology, New York University School of Medicine, New York, NY 10016
| | - Herbert Lepor
- Department of Urology, New York University School of Medicine, New York, NY 10016.,Sackler Institute of Comparative Genomics, American Museum of Natural History, New York, NY 10024
| | - Xue-Ru Wu
- Department of Pathology, New York University School of Medicine, New York, NY 10016.,Department of Urology, New York University School of Medicine, New York, NY 10016.,Department of Biochemistry and Molecular Pharmacology, New York University School of Medicine, New York, NY 10016
| | - Robert DeSalle
- Veterans Affairs New York Harbor Healthcare System, New York, NY 10010
| | - Antonio Garcia-España
- Unitat De Recerca, Hospital Joan XXIII, Institut de Investigacio Sanitaria Pere Virgili (IISPV), Universitat Rovira i Virgili, Tarragona 43007, Spain
| | - Sang Yong Kim
- Department of Pathology, New York University School of Medicine, New York, NY 10016
| | - Tung-Tien Sun
- Department of Cell Biology, New York University School of Medicine, New York, NY 10016.,Department of Urology, New York University School of Medicine, New York, NY 10016.,The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, NY 10016.,Sackler Institute of Comparative Genomics, American Museum of Natural History, New York, NY 10024
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12
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Carpenter AR, McHugh KM. Role of renal urothelium in the development and progression of kidney disease. Pediatr Nephrol 2017; 32:557-564. [PMID: 27115886 PMCID: PMC5081278 DOI: 10.1007/s00467-016-3385-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 01/11/2016] [Accepted: 03/31/2016] [Indexed: 10/21/2022]
Abstract
The clinical and financial impact of chronic kidney disease (CKD) is significant, while its progression and prognosis is variable and often poor. Studies using the megabladder (mgb -/- ) model of CKD show that renal urothelium plays a key role in modulating early injury responses following the development of congenital obstruction. The aim of this review is to examine the role that urothelium has in normal urinary tract development and pathogenesis. We discuss normal morphology of renal urothelium and then examine the role that uroplakins (Upks) play in its development. Histologic, biochemical, and molecular characterization of Upk1b RFP/RFP mice indicated Upk1b expression is essential for normal urinary tract development, apical plaque/asymmetric membrane unit (AUM) formation, and differentiation and functional integrity of the renal urothelium. Our studies provide the first evidence that Upk1b is directly associated with the development of congenital anomalies of the urinary tract (CAKUT), spontaneous age-dependent hydronephrosis, and dysplastic urothelia. These observations demonstrate the importance of proper urothelial differentiation in normal development and pathogenesis of the urinary tract and provide a unique working model to test the hypothesis that the complex etiology associated with CKD is dependent upon predetermined genetic susceptibilities that establish pathogenic thresholds for disease initiation and progression.
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Affiliation(s)
- Ashley R. Carpenter
- Biomedical Sciences Graduate Program, The Ohio State University,Center for Molecular and Human Genetics, The Research Institute at Nationwide Children’s Hospital
| | - Kirk M. McHugh
- Center for Molecular and Human Genetics, The Research Institute at Nationwide Children’s Hospital,Division of Anatomy, The Ohio State University
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13
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Chicote JU, DeSalle R, García-España A. Phosphotyrosine phosphatase R3 receptors: Origin, evolution and structural diversification. PLoS One 2017; 12:e0172887. [PMID: 28257417 PMCID: PMC5336234 DOI: 10.1371/journal.pone.0172887] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 02/10/2017] [Indexed: 11/18/2022] Open
Abstract
Subtype R3 phosphotyrosine phosphatase receptors (R3 RPTPs) are single-spanning membrane proteins characterized by a unique modular composition of extracellular fibronectin repeats and a single cytoplasmatic protein tyrosine phosphatase (PTP) domain. Vertebrate R3 RPTPs consist of five members: PTPRB, PTPRJ, PTPRH and PTPRO, which dephosphorylate tyrosine residues, and PTPRQ, which dephosphorylates phophoinositides. R3 RPTPs are considered novel therapeutic targets in several pathologies such as ear diseases, nephrotic syndromes and cancer. R3 RPTP vertebrate receptors, as well as their known invertebrate counterparts from animal models: PTP52F, PTP10D and PTP4e from the fruitfly Drosophila melanogaster and F44G4.8/DEP-1 from the nematode Caenorhabditis elegans, participate in the regulation of cellular activities including cell growth and differentiation. Despite sharing structural and functional properties, the evolutionary relationships between vertebrate and invertebrate R3 RPTPs are not fully understood. Here we gathered R3 RPTPs from organisms covering a broad evolutionary distance, annotated their structure and analyzed their phylogenetic relationships. We show that R3 RPTPs (i) have probably originated in the common ancestor of animals (metazoans), (ii) are variants of a single ancestral gene in protostomes (arthropods, annelids and nematodes); (iii) a likely duplication of this ancestral gene in invertebrate deuterostomes (echinodermes, hemichordates and tunicates) generated the precursors of PTPRQ and PTPRB genes, and (iv) R3 RPTP groups are monophyletic in vertebrates and have specific conserved structural characteristics. These findings could have implications for the interpretation of past studies and provide a framework for future studies and functional analysis of this important family of proteins.
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Affiliation(s)
- Javier U. Chicote
- Hospital Universitari de Tarragona Joan XXIII, Institut d’Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Tarragona, Spain
| | - Rob DeSalle
- Sackler Institute for Comparative Genomics, American Museum of Natural History, New York, NewYork, United States of America
| | - Antonio García-España
- Hospital Universitari de Tarragona Joan XXIII, Institut d’Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Tarragona, Spain
- * E-mail:
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14
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The Tetraspanin-Associated Uroplakins Family (UPK2/3) Is Evolutionarily Related to PTPRQ, a Phosphotyrosine Phosphatase Receptor. PLoS One 2017; 12:e0170196. [PMID: 28099513 PMCID: PMC5242461 DOI: 10.1371/journal.pone.0170196] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 01/02/2017] [Indexed: 11/19/2022] Open
Abstract
Uroplakins are a widespread group of vertebrate integral membrane proteins that belong to two different families: UPK1a and UPK1b belong to the large tetraspanin (TSPAN) gene family, and UPK3a, UPK3b, UPK3c, UPK3d, UPK2a and UPK2b form a family of their own, the UPK2/3 tetraspanin-associated family. In a previous study, we reported that uroplakins first appeared in vertebrates, and that uroplakin tetraspanins (UPK1a and UPK1b) should have originated by duplication of an ancestor tetraspanin gene. However, the evolutionary origin of the UPK2/3 family remains unclear. In this study, we provide evidence that the UPK2/3 family originated by gene duplication and domain loss from a protoPTPRQ-like basal deuterostome gene. PTPRQs are members of the subtype R3 tyrosine phosphatase receptor (R3 PTPR) family, which are characterized by having a unique modular composition of extracellular fibronectin (FN3) repeats, a transmembrane helix, and a single intra-cytoplasmic phosphotyrosine phophatase (PTP) domain. Our assumption of a deuterostome protoPTPRQ-like gene as an ancestor of the UPK2/3 family by gene duplication and loss of its PTP and fibronectin (FN3) domains, excluding the one closest to the transmembrane helix, is based on the following: (i) phylogenetic analyses, (ii) the existence of an identical intron/exon gene pattern between UPK2/3 and the corresponding genetic region in R3 PTPRs, (iii) the conservation of cysteine patterns and protein motifs between UPK2/3 and PTPRQ proteins and, (iv) the existence in tunicates, the closest organisms to vertebrates, of two sequences related to PTPRQ; one with the full subtype R3 modular characteristic and another without the PTP domain but with a short cytoplasmic tail with some sequence similarity to that of UPK3a. This finding will facilitate further studies on the structure and function of these important proteins with implications in human diseases.
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15
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Ruiz-García A, López-López S, García-Ramírez JJ, Baladrón V, Ruiz-Hidalgo MJ, López-Sanz L, Ballesteros Á, Laborda J, Monsalve EM, Díaz-Guerra MJM. The Tetraspanin TSPAN33 Controls TLR-Triggered Macrophage Activation through Modulation of NOTCH Signaling. THE JOURNAL OF IMMUNOLOGY 2016; 197:3371-3381. [PMID: 27574297 DOI: 10.4049/jimmunol.1600421] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 08/08/2016] [Indexed: 12/15/2022]
Abstract
The involvement of NOTCH signaling in macrophage activation by Toll receptors has been clearly established, but the factors and pathways controlling NOTCH signaling during this process have not been completely delineated yet. We have characterized the role of TSPAN33, a tetraspanin implicated in a disintegrin and metalloproteinase (ADAM) 10 maturation, during macrophage proinflammatory activation. Tspan33 expression increases in response to TLR signaling, including responses triggered by TLR4, TLR3, and TLR2 activation, and it is enhanced by IFN-γ. In this study, we report that induction of Tspan33 expression by TLR and IFN-γ is largely dependent on NOTCH signaling, as its expression is clearly diminished in macrophages lacking Notch1 and Notch2 expression, but it is enhanced after overexpression of a constitutively active intracellular domain of NOTCH1. TSPAN33 is the member of the TspanC8 tetraspanin subgroup more intensely induced during macrophage activation, and its overexpression increases ADAM10, but not ADAM17, maturation. TSPAN33 favors NOTCH processing at the membrane by modulating ADAM10 and/or Presenilin1 activity, thus increasing NOTCH signaling in activated macrophages. Moreover, TSPAN33 modulates TLR-induced proinflammatory gene expression, at least in part, by increasing NF-κB-dependent transcriptional activity. Our results suggest that TSPAN33 represents a new control element in the development of inflammation by macrophages that could constitute a potential therapeutic target.
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Affiliation(s)
- Almudena Ruiz-García
- Facultad de Medicina, Centro Regional de Investigaciones Biomédicas, Unidad de Biomedicina, Universidad de Castilla-La Mancha/Consejo Superior de Investigaciones Cientificas, 02006 Albacete, Spain
| | - Susana López-López
- Facultad de Medicina, Centro Regional de Investigaciones Biomédicas, Unidad de Biomedicina, Universidad de Castilla-La Mancha/Consejo Superior de Investigaciones Cientificas, 02006 Albacete, Spain
| | - José Javier García-Ramírez
- Facultad de Medicina, Centro Regional de Investigaciones Biomédicas, Unidad de Biomedicina, Universidad de Castilla-La Mancha/Consejo Superior de Investigaciones Cientificas, 02006 Albacete, Spain
| | - Victoriano Baladrón
- Facultad de Medicina, Centro Regional de Investigaciones Biomédicas, Unidad de Biomedicina, Universidad de Castilla-La Mancha/Consejo Superior de Investigaciones Cientificas, 02006 Albacete, Spain
| | - María José Ruiz-Hidalgo
- Facultad de Medicina, Centro Regional de Investigaciones Biomédicas, Unidad de Biomedicina, Universidad de Castilla-La Mancha/Consejo Superior de Investigaciones Cientificas, 02006 Albacete, Spain
| | - Laura López-Sanz
- Facultad de Medicina, Centro Regional de Investigaciones Biomédicas, Unidad de Biomedicina, Universidad de Castilla-La Mancha/Consejo Superior de Investigaciones Cientificas, 02006 Albacete, Spain
| | - Ángela Ballesteros
- Facultad de Medicina, Centro Regional de Investigaciones Biomédicas, Unidad de Biomedicina, Universidad de Castilla-La Mancha/Consejo Superior de Investigaciones Cientificas, 02006 Albacete, Spain
| | - Jorge Laborda
- Facultad de Medicina, Centro Regional de Investigaciones Biomédicas, Unidad de Biomedicina, Universidad de Castilla-La Mancha/Consejo Superior de Investigaciones Cientificas, 02006 Albacete, Spain
| | - Eva María Monsalve
- Facultad de Medicina, Centro Regional de Investigaciones Biomédicas, Unidad de Biomedicina, Universidad de Castilla-La Mancha/Consejo Superior de Investigaciones Cientificas, 02006 Albacete, Spain
| | - María José M Díaz-Guerra
- Facultad de Medicina, Centro Regional de Investigaciones Biomédicas, Unidad de Biomedicina, Universidad de Castilla-La Mancha/Consejo Superior de Investigaciones Cientificas, 02006 Albacete, Spain
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16
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Carpenter AR, Becknell MB, Ching CB, Cuaresma EJ, Chen X, Hains DS, McHugh KM. Uroplakin 1b is critical in urinary tract development and urothelial differentiation and homeostasis. Kidney Int 2015; 89:612-24. [PMID: 26880456 DOI: 10.1016/j.kint.2015.11.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 09/12/2015] [Accepted: 09/24/2015] [Indexed: 11/15/2022]
Abstract
Proper development and maintenance of urothelium is critical to its function. Uroplakins are expressed in developing and mature urothelium where they establish plaques associated with the permeability barrier. Their precise functional role in development and disease is unknown. Here, we disrupted Upk1b in vivo where its loss resulted in urothelial plaque disruption in the bladder and kidney. Upk1b(RFP/RFP) bladder urothelium appeared dysplastic with expansion of the progenitor cell markers, Krt14 and Krt5, increased Shh expression, and loss of terminal differentiation markers Krt20 and uroplakins. Upk1b(RFP/RFP) renal urothelium became stratified with altered cellular composition. Upk1b(RFP/RFP) mice developed age-dependent progressive hydronephrosis. Interestingly, 16% of Upk1b(RFP/RFP) mice possessed unilateral duplex kidneys. Our study expands the role of uroplakins, mechanistically links plaque formation to urinary tract development and function, and provides a tantalizing connection between congenital anomalies of the kidney and urinary tract along with functional deficits observed in a variety of urinary tract diseases. Thus, kidney and bladder urothelium are regionally distinct and remain highly plastic, capable of expansion through tissue-specific progenitor populations. Furthermore, Upk1b plays a previously unknown role in early kidney development representing a novel genetic target for congenital anomalies of the kidney and urinary tract.
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Affiliation(s)
- Ashley R Carpenter
- Molecular and Human Genetics, Nationwide Children's Hospital, Columbus, Ohio, USA; College of Medicine, Ohio State University, Columbus, Ohio, USA.
| | | | | | | | - Xi Chen
- Molecular and Human Genetics, Nationwide Children's Hospital, Columbus, Ohio, USA
| | - David S Hains
- Children's Foundation Research Institute at Le Bonheur Children's Hospital, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - Kirk M McHugh
- Molecular and Human Genetics, Nationwide Children's Hospital, Columbus, Ohio, USA; Division of Anatomy, Ohio State University, Columbus, Ohio, USA
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17
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Abstract
A case of a young girl diagnosed with an antibody deficiency syndrome serves to highlight the role of CD81 in B cell biology. Moreover, this case illustrates a fundamental function of the tetraspanin family, namely their association with partner proteins. Characterization of the patient's B cells revealed lack of surface CD19 although both of her CD19 alleles were normal. Further analysis determined that her antibody deficiency syndrome was due to a mutation in the CD81 gene, which did not enable expression of CD19 on the surface of the patient's B cells. Actually, the partnership of CD81 with CD19 and the dependency of CD19 for its trafficking to the cell surface expression were first documented in CD81-deficient mice. CD81 is a widely expressed protein, yet the mutation in the antibody-deficient patient impaired mostly her B cell function. CD81 is required for multiple normal physiological functions, which have been subverted by major human pathogens, such as hepatitis C virus. However, this review will focus on the function of CD81 in cells of the adaptive immune system. Specifically, it will highlight studies focusing on the different roles of CD81 in B and T cells and on its function in B-T cell interactions.
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18
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Kątnik-Prastowska I, Lis J, Matejuk A. Glycosylation of uroplakins. Implications for bladder physiopathology. Glycoconj J 2014; 31:623-36. [PMID: 25394961 PMCID: PMC4245495 DOI: 10.1007/s10719-014-9564-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 10/10/2014] [Accepted: 10/13/2014] [Indexed: 11/28/2022]
Abstract
Urothelium, a specialized epithelium, covers the urinary tract and act not only as a barrier separating its light from the surrounding tissues, but fulfills an important role in maintaining the homeostasis of the urothelial tract and well-being of the whole organism. Proper function of urothelium is dependent on the precise assemble of highly specialized glycoproteins called uroplakins, the end products and differentiation markers of the urothelial cells. Glycosylation changes in uroplakins correlate with and might reflect progressive stages of pathological conditions of the urothelium such as cancer, urinary tract infections, interstitial cystitis and others. In this review we focus on sugar components of uroplakins, their emerging role in urothelial biology and disease implications. The advances in our understanding of uroplakins changes in glycan moieties composition, structure, assembly and expression of their glycovariants could potentially lead to the development of targeted therapies and discoveries of novel urine and plasma markers for the benefit of patients with urinary tract diseases.
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Affiliation(s)
- Iwona Kątnik-Prastowska
- Department of Chemistry and Immunochemistry, Medical University of Wroclaw, Bujwida 44a, 50-345, Wroclaw, Poland
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19
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Desalle R, Chicote JU, Sun TT, Garcia-España A. Generation of divergent uroplakin tetraspanins and their partners during vertebrate evolution: identification of novel uroplakins. BMC Evol Biol 2014; 14:13. [PMID: 24450554 PMCID: PMC3922775 DOI: 10.1186/1471-2148-14-13] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Accepted: 01/02/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The recent availability of sequenced genomes from a broad array of chordates (cephalochordates, urochordates and vertebrates) has allowed us to systematically analyze the evolution of uroplakins: tetraspanins (UPK1a and UPK1b families) and their respective partner proteins (UPK2 and UPK3 families). RESULTS We report here: (1) the origin of uroplakins in the common ancestor of vertebrates, (2) the appearance of several residues that have statistically significantly positive dN/dS ratios in the duplicated paralogs of uroplakin genes, and (3) the existence of strong coevolutionary relationships between UPK1a/1b tetraspanins and their respective UPK2/UPK3-related partner proteins. Moreover, we report the existence of three new UPK2/3 family members we named UPK2b, 3c and 3d, which will help clarify the evolutionary relationships between fish, amphibian and mammalian uroplakins that may perform divergent functions specific to these different and physiologically distinct groups of vertebrates. CONCLUSIONS Since our analyses cover species of all major chordate groups this work provides an extremely clear overall picture of how the uroplakin families and their partner proteins have evolved in parallel. We also highlight several novel features of uroplakin evolution including the appearance of UPK2b and 3d in fish and UPK3c in the common ancestor of reptiles and mammals. Additional studies of these novel uroplakins should lead to new insights into uroplakin structure and function.
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Affiliation(s)
- Rob Desalle
- Sackler Institute for Comparative Genomics, American Museum of Natural History, New York, New York, USA.
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20
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Membrane lipids and proteins as modulators of urothelial endocytic vesicles pathways. Histochem Cell Biol 2013; 140:507-20. [PMID: 23624723 DOI: 10.1007/s00418-013-1095-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/07/2013] [Indexed: 10/26/2022]
Abstract
The increased studies on urinary bladder umbrella cells as an important factor for maintaining the permeability barrier have suggested new pathways for the discoidal/fusiform endocytic vesicles which is one of the main features of the umbrella cells. The biological role of these vesicles was defined, for many years, as a membrane reservoir for the umbrella cell apical plasma membrane which are subject to an increased tension during the filling phase of the micturition cycle and, therefore, the vesicles are fused with the apical membrane. Upon voiding, the added membrane is reinserted via a non-clathrin or caveolin-dependant endocytosis thereby restoring the vesicle cytoplasmic pool. However, in the last decade, new evidence appeared indicating alternative pathways of the endocytic vesicles different than the cycling process of exocytosis/endocytosis. The purpose of this review is to analyze the molecular modulators, such as membrane lipids and proteins, in the permeability of endocytic vesicles, the sorting of endocytosed material to lysosomal degradation pathway and recycling of both membrane and fluid phases.
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21
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Shoae-Hassani A, Mortazavi-Tabatabaei SA, Sharif S, Seifalian AM, Azimi A, Samadikuchaksaraei A, Verdi J. Differentiation of human endometrial stem cells into urothelial cells on a three-dimensional nanofibrous silk-collagen scaffold: an autologous cell resource for reconstruction of the urinary bladder wall. J Tissue Eng Regen Med 2013; 9:1268-76. [PMID: 23319462 DOI: 10.1002/term.1632] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Revised: 05/26/2012] [Accepted: 09/17/2012] [Indexed: 12/31/2022]
Abstract
Reconstruction of the bladder wall via in vitro differentiated stem cells on an appropriate scaffold could be used in such conditions as cancer and neurogenic urinary bladder. This study aimed to examine the potential of human endometrial stem cells (EnSCs) to form urinary bladder epithelial cells (urothelium) on nanofibrous silk-collagen scaffolds, for construction of the urinary bladder wall. After passage 4, EnSCs were induced by keratinocyte growth factor (KGF) and epidermal growth factor (EGF) and seeded on electrospun collagen-V, silk and silk-collagen nanofibres. Later we tested urothelium-specific genes and proteins (uroplakin-Ia, uroplakin-Ib, uroplakin-II, uroplakin-III and cytokeratin 20) by immunocytochemistry, RT-PCR and western blot analyses. Scanning electron microscopy (SEM) and histology were used to detect cell-matrix interactions. DMEM/F12 supplemented by KGF and EGF induced EnSCs to express urothelial cell-specific genes and proteins. Either collagen, silk or silk-collagen scaffolds promoted cell proliferation. The nanofibrous silk-collagen scaffolds provided a three-dimensional (3D) structure to maximize cell-matrix penetration and increase differentiation of the EnSCs. Human EnSCs seeded on 3D nanofibrous silk-collagen scaffolds and differentiated to urothelial cells provide a suitable source for potential use in bladder wall reconstruction in women.
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Affiliation(s)
- Alireza Shoae-Hassani
- Tissue Engineering and Stem Cell Department, Research Centre for Science and Technology in Medicine (RCSTiM), Tehran University of Medical Sciences, Tehran, Iran.,Applied Cell Sciences Department, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Abdolreza Mortazavi-Tabatabaei
- Tissue Engineering and Stem Cell Department, Research Centre for Science and Technology in Medicine (RCSTiM), Tehran University of Medical Sciences, Tehran, Iran.,Proteomics Research Centre, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shiva Sharif
- Tissue Engineering and Stem Cell Department, Research Centre for Science and Technology in Medicine (RCSTiM), Tehran University of Medical Sciences, Tehran, Iran.,Tissue Engineering Department, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Alexander Marcus Seifalian
- UCL Centre for Nanotechnology & Regenerative Medicine, Division of Surgery & Interventional Science, University College London, London, United Kingdom
| | - Alireza Azimi
- Department of Oncology-Pathology, Karolinska University Hospital, Stockholm, Sweden
| | - Ali Samadikuchaksaraei
- Applied Cell Sciences Department, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Department of Chemical Engineering, Biological Systems Engineering Laboratory, Centre for Process Systems Engineering, Imperial College London, United Kingdom
| | - Javad Verdi
- Tissue Engineering and Stem Cell Department, Research Centre for Science and Technology in Medicine (RCSTiM), Tehran University of Medical Sciences, Tehran, Iran.,Applied Cell Sciences Department, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Tissue Engineering Department, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
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22
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Mitra S, Lukianov S, Ruiz WG, Cianciolo Cosentino C, Sanker S, Traub LM, Hukriede NA, Apodaca G. Requirement for a uroplakin 3a-like protein in the development of zebrafish pronephric tubule epithelial cell function, morphogenesis, and polarity. PLoS One 2012; 7:e41816. [PMID: 22848617 PMCID: PMC3404999 DOI: 10.1371/journal.pone.0041816] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Accepted: 06/29/2012] [Indexed: 12/02/2022] Open
Abstract
Uroplakin (UP)3a is critical for urinary tract development and function; however, its role in these processes is unknown. We examined the function of the UP3a-like protein Upk3l, which was expressed at the apical surfaces of the epithelial cells that line the pronephric tubules (PTs) of the zebrafish pronephros. Embryos treated with upk3l-targeted morpholinos showed decreased pronephros function, which was attributed to defects in PT epithelial cell morphogenesis and polarization including: loss of an apical brush border and associated phospho-ERM proteins, apical redistribution of the basolateral Na+/K+–ATPase, and altered or diminished expression of the apical polarity complex proteins Prkcz (atypical protein kinase C zeta) and Pard3 (Par3). Upk3l missing its C-terminal cytoplasmic domain or containing mutations in conserved tyrosine or proline residues did not rescue, or only partially rescued the effects of Upk3l depletion. Our studies indicate that Upk3l promotes epithelial polarization and morphogenesis, likely by forming or stimulating interactions with cytoplasmic signaling or polarity proteins, and that defects in this process may underlie the pathology observed in UP3a knockout mice or patients with renal abnormalities that result from altered UP3a expression.
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Affiliation(s)
- Shalini Mitra
- Department of Medicine Renal-Electrolyte Division, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Stefan Lukianov
- Department of Medicine Renal-Electrolyte Division, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Wily G. Ruiz
- Department of Medicine Renal-Electrolyte Division, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Chiara Cianciolo Cosentino
- Department of Developmental Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Subramaniam Sanker
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Linton M. Traub
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Neil A. Hukriede
- Department of Developmental Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Gerard Apodaca
- Department of Medicine Renal-Electrolyte Division, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- * E-mail:
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Wang F, Vandepoele K, Van Lijsebettens M. Tetraspanin genes in plants. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2012; 190:9-15. [PMID: 22608515 DOI: 10.1016/j.plantsci.2012.03.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Revised: 03/14/2012] [Accepted: 03/16/2012] [Indexed: 05/19/2023]
Abstract
Tetraspanins represent a four-transmembrane protein superfamily with a conserved structure and amino acid residues that are present in mammals, insects, fungi and plants. Tetraspanins interact with each other or with other membrane proteins to form tetraspanin-enriched microdomains that play important roles in development, pathogenesis and immune responses via facilitating cell-cell adhesion and fusion, ligand binding and intracellular trafficking. Here, we emphasize evolutionary aspects within the plant kingdom based on genomic sequence information. A phylogenetic tree based on 155 tetraspanin genes of 11 plant species revealed ancient and fast evolving clades. Tetraspanins were only present in multicellular plants, were often duplicated in the plant genomes and predicted by the electronic Fluorescent Pictograph for gene expression analysis to be either functionally redundant or divergent. Tetraspanins contain a large extracellular loop with conserved cysteines that provide the binding sites for the interactions. The Arabidopsis thaliana TETRASPANIN1/TORNADO2/EKEKO has a function in leaf and root patterning and TETRASPANIN3 was identified in the plasmodesmatal proteome, suggesting a role in cell-cell communication during plant development.
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Affiliation(s)
- Feng Wang
- Department of Plant Systems Biology, VIB, Technologiepark 927, B-9052 Gent, Belgium
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Sancho A, Duran J, García-España A, Mauvezin C, Alemu EA, Lamark T, Macias MJ, DeSalle R, Royo M, Sala D, Chicote JU, Palacín M, Johansen T, Zorzano A. DOR/Tp53inp2 and Tp53inp1 constitute a metazoan gene family encoding dual regulators of autophagy and transcription. PLoS One 2012; 7:e34034. [PMID: 22470510 PMCID: PMC3314686 DOI: 10.1371/journal.pone.0034034] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2011] [Accepted: 02/21/2012] [Indexed: 11/18/2022] Open
Abstract
Human DOR/TP53INP2 displays a unique bifunctional role as a modulator of autophagy and gene transcription. However, the domains or regions of DOR that participate in those functions have not been identified. Here we have performed structure/function analyses of DOR guided by identification of conserved regions in the DOR gene family by phylogenetic reconstructions. We show that DOR is present in metazoan species. Invertebrates harbor only one gene, DOR/Tp53inp2, and in the common ancestor of vertebrates Tp53inp1 may have arisen by gene duplication. In keeping with these data, we show that human TP53INP1 regulates autophagy and that different DOR/TP53INP2 and TP53INP1 proteins display transcriptional activity. The use of molecular evolutionary information has been instrumental to determine the regions that participate in DOR functions. DOR and TP53INP1 proteins share two highly conserved regions (region 1, aa residues 28-42; region 2, 66-112 in human DOR). Mutation of conserved hydrophobic residues in region 1 of DOR (that are part of a nuclear export signal, NES) reduces transcriptional activity, and blocks nuclear exit and autophagic activity under autophagy-activated conditions. We also identify a functional and conserved LC3-interacting motif (LIR) in region 1 of DOR and TP53INP1 proteins. Mutation of conserved acidic residues in region 2 of DOR reduces transcriptional activity, impairs nuclear exit in response to autophagy activation, and disrupts autophagy. Taken together, our data reveal DOR and TP53INP1 as dual regulators of transcription and autophagy, and identify two conserved regions in the DOR family that concentrate multiple functions crucial for autophagy and transcription.
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Affiliation(s)
- Ana Sancho
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona, Spain
- Departament de Bioquímica i Biologia Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain
| | - Jordi Duran
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona, Spain
- Departament de Bioquímica i Biologia Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain
| | - Antonio García-España
- Unitat de Recerca, Hospital Joan XXIII, Institut de Investigacio Sanitaria Rovira I Virgili (IISPV), Universitat Rovira i Virgili, Tarragona, Spain
| | - Caroline Mauvezin
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona, Spain
- Departament de Bioquímica i Biologia Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain
| | - Endalkachew A. Alemu
- Molecular Cancer Research Group, Institute of Medical Biology, University of Tromsø, Tromsø, Norway
| | - Trond Lamark
- Molecular Cancer Research Group, Institute of Medical Biology, University of Tromsø, Tromsø, Norway
| | - Maria J. Macias
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona, Spain
- ICREA, Institució Catalana de Recerca i Estudis Avançats, Barcelona, Spain
| | - Rob DeSalle
- Sackler Institute for Comparative Genomics, American Museum of Natural History, New York, New York, United States of America
| | - Miriam Royo
- Combinatorial Chemistry Unit, Barcelona Science Park, Barcelona, Spain
| | - David Sala
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona, Spain
- Departament de Bioquímica i Biologia Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain
| | - Javier U. Chicote
- Unitat de Recerca, Hospital Joan XXIII, Institut de Investigacio Sanitaria Rovira I Virgili (IISPV), Universitat Rovira i Virgili, Tarragona, Spain
| | - Manuel Palacín
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona, Spain
- Departament de Bioquímica i Biologia Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
| | - Terje Johansen
- Molecular Cancer Research Group, Institute of Medical Biology, University of Tromsø, Tromsø, Norway
| | - Antonio Zorzano
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona, Spain
- Departament de Bioquímica i Biologia Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain
- * E-mail:
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Hasan AKMM, Fukami Y, Sato KI. Gamete membrane microdomains and their associated molecules in fertilization signaling. Mol Reprod Dev 2011; 78:814-30. [PMID: 21688335 DOI: 10.1002/mrd.21336] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2011] [Accepted: 05/15/2011] [Indexed: 12/19/2022]
Abstract
Fertilization is the fundamental system of biological reproduction in many organisms, including animals, plants, and algae. A growing body of knowledge has emerged to explain how fertilization and activation of development are accomplished. Studies on the molecular mechanisms of fertilization are in progress for a wide variety of multicellular organisms. In this review, we summarize recent findings and debates about the long-standing questions concerning fertilization: how egg and sperm become competent for their interaction with each other, how the binding and fusion of these gamete cells are made possible, and how the fertilized eggs initiate development to a newborn. We will focus on the structure and function of the membrane microdomains (MDs) of egg and sperm that may serve as a platform or signaling center for the aforementioned cellular functions. In particular, we provide evidence that MDs of eggs from the African clawed frog, Xenopus laevis, play a pivotal role in receiving extracellular signals from fertilizing sperm and then transmitting them to the egg cytoplasm, where the tyrosine kinase Src is present and responsible for the subsequent signaling events collectively called egg activation. The presence of a new signaling axis involving uroplakin III, an MD-associated transmembrane protein, and Src in this system will be highlighted and discussed.
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Affiliation(s)
- A K M Mahbub Hasan
- Laboratory of Cell Signaling and Development, Department of Molecular Biosciences, Faculty of Life Sciences, Kyoto Sangyo University, Kyoto, Japan
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Kreft ME, Hudoklin S, Jezernik K, Romih R. Formation and maintenance of blood-urine barrier in urothelium. PROTOPLASMA 2010; 246:3-14. [PMID: 20521071 DOI: 10.1007/s00709-010-0112-1] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2009] [Accepted: 01/15/2010] [Indexed: 05/29/2023]
Abstract
Blood-urine barrier, which is formed during differentiation of superficial urothelial cells, is the tightest and most impermeable barrier in the body. In the urinary bladder, the barrier must accommodate large changes in the surface area during distensions and contractions of the organ. Tight junctions and unique apical plasma membrane of superficial urothelial cells play a critical role in the barrier maintenance. Alterations in the blood-urine barrier function accompany most of the urinary tract diseases. In this review, we discuss recent discoveries on the role of tight junctions, dynamics of Golgi apparatus and post-Golgi compartments, and intracellular membrane traffic during the biogenesis and maintenance of blood-urine barrier.
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Affiliation(s)
- Mateja Erdani Kreft
- Institute of Cell Biology, Faculty of Medicine, University of Ljubljana, Lipiceva 2, SI-1000, Ljubljana, Slovenia.
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DeSalle R, Mares R, Garcia-España A. Evolution of cysteine patterns in the large extracellular loop of tetraspanins from animals, fungi, plants and single-celled eukaryotes. Mol Phylogenet Evol 2010; 56:486-91. [DOI: 10.1016/j.ympev.2010.02.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2009] [Revised: 01/20/2010] [Accepted: 02/10/2010] [Indexed: 10/19/2022]
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Garcia-España A, DeSalle R. Intron sliding in tetraspanins. Commun Integr Biol 2010; 2:394-5. [PMID: 19907697 DOI: 10.4161/cib.2.5.8760] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2009] [Accepted: 04/14/2009] [Indexed: 11/19/2022] Open
Abstract
Specific questions about intron evolution are precisely addressed applying a phylogenomic approach to suitable gene families. With this approach we have recently reported that the appearance of most human tetraspanins occurred in the common ancestor of vertebrates and coincides in nearly all cases with the concomitant acquisition of new introns. We observed that indels at the ends of the DNA exonic sequences with no involvement of the corresponding intronic sequence, were the cause of two discordant intron positions between orthologous tetraspanins. Here, we discuss a putative intron sliding occurrence in which a new acquired intron junction (intron 1a) in the ancestor of chordates could have been shifted to new positions (introns 1b and 1c) during the expansion of the tetraspanin family in vertebrates. Such a mechanism could be responsible for generating some of the variation of function in this important family of membrane spanning proteins.
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Affiliation(s)
- Antonio Garcia-España
- Unitat de Recerca, Hospital Joan XXIII, Institut de Investigacio Sanitaria Rovira I Virgili (IISPV), Tarragona 46007, Spain.
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A conserved tetraspanin subfamily promotes Notch signaling in Caenorhabditis elegans and in human cells. Proc Natl Acad Sci U S A 2010; 107:5907-12. [PMID: 20220101 DOI: 10.1073/pnas.1001647107] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The cytosolic domain of Notch is a membrane-tethered transcription factor. Ligand binding ultimately leads to gamma-secretase cleavage within the transmembrane domain, allowing the intracellular domain to translocate to the nucleus and activate target gene transcription. Constitutive Notch signaling has been associated with human cancers such as T cell acute lymphoblastic leukemia (T-ALL). As tetraspanins have been implicated in many different signaling processes, we assessed their potential contribution to Notch signaling. We used a genetic assay in Caenorhabditis elegans to identify TSP-12 as a positive factor for Notch activity in several cellular contexts. Then, using a cell culture system, we showed that two human TSP-12 orthologs, TSPAN33 and TSPAN5, promote Notch activity and are likely to act at the gamma-secretase cleavage step. We also acquired evidence for functional redundancy among tetraspanins in both C. elegans and human cells. Selective inhibition of tetraspanins may constitute an anti-NOTCH therapeutic approach to reduce gamma-secretase activity.
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Yu Z, Mannik J, Soto A, Lin KK, Andersen B. The epidermal differentiation-associated Grainyhead gene Get1/Grhl3 also regulates urothelial differentiation. EMBO J 2009; 28:1890-903. [PMID: 19494835 PMCID: PMC2711180 DOI: 10.1038/emboj.2009.142] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2009] [Accepted: 04/28/2009] [Indexed: 12/29/2022] Open
Abstract
Skin and bladder epithelia form effective permeability barriers through the activation of distinct differentiation gene programs. Using a genome-wide gene-expression study, we identified transcriptional regulators whose expression correlates highly with that of differentiation markers in both the bladder and skin, including the Grainyhead factor Get1/Grhl3, which is already known to be important for epidermal barrier formation. In the bladder, Get1 is most highly expressed in the differentiated umbrella cells and its mutation in mice leads to a defective bladder epithelial barrier formation due to the failure of apical membrane specialization. Genes encoding components of the specialized urothelial membrane, the uroplakins, were downregulated in Get1(-/-) mice. At least one of these genes, uroplakin II, is a direct target of Get1. The urothelial-specific activation of the uroplakin II gene is due to selective binding of Get1 to the uroplakin II promoter in urothelial cells, which is most likely regulated by histone modifications. These results show a crucial role for Get1 in urothelial differentiation and barrier formation.
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Affiliation(s)
- Zhengquan Yu
- Department of Medicine, University of California, Irvine, CA, USA
- Department of Biological Chemistry, University of California, Irvine, CA, USA
| | - Jaana Mannik
- Department of Medicine, University of California, Irvine, CA, USA
- Department of Biological Chemistry, University of California, Irvine, CA, USA
| | - Amelia Soto
- Department of Medicine, University of California, Irvine, CA, USA
- Department of Biological Chemistry, University of California, Irvine, CA, USA
| | - Kevin K Lin
- Department of Medicine, University of California, Irvine, CA, USA
- Department of Biological Chemistry, University of California, Irvine, CA, USA
| | - Bogi Andersen
- Department of Medicine, University of California, Irvine, CA, USA
- Department of Biological Chemistry, University of California, Irvine, CA, USA
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Khandelwal P, Abraham SN, Apodaca G. Cell biology and physiology of the uroepithelium. Am J Physiol Renal Physiol 2009; 297:F1477-501. [PMID: 19587142 DOI: 10.1152/ajprenal.00327.2009] [Citation(s) in RCA: 261] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The uroepithelium sits at the interface between the urinary space and underlying tissues, where it forms a high-resistance barrier to ion, solute, and water flux, as well as pathogens. However, the uroepithelium is not simply a passive barrier; it can modulate the composition of the urine, and it functions as an integral part of a sensory web in which it receives, amplifies, and transmits information about its external milieu to the underlying nervous and muscular systems. This review examines our understanding of uroepithelial regeneration and how specializations of the outermost umbrella cell layer, including tight junctions, surface uroplakins, and dynamic apical membrane exocytosis/endocytosis, contribute to barrier function and how they are co-opted by uropathogenic bacteria to infect the uroepithelium. Furthermore, we discuss the presence and possible functions of aquaporins, urea transporters, and multiple ion channels in the uroepithelium. Finally, we describe potential mechanisms by which the uroepithelium can transmit information about the urinary space to the other tissues in the bladder proper.
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Abstract
Urothelium covers the inner surfaces of the renal pelvis, ureter, bladder, and prostatic urethra. Although morphologically similar, the urothelia in these anatomic locations differ in their embryonic origin and lineages of cellular differentiation, as reflected in their different uroplakin content, expandability during micturition, and susceptibility to chemical carcinogens. Previously thought to be an inert tissue forming a passive barrier between the urine and blood, urothelia have recently been shown to have a secretory activity that actively modifies urine composition. Urothelial cells express a number of ion channels, receptors, and ligands, enabling them to receive and send signals and communicate with adjoining cells and their broader environment. The urothelial surface bears specific receptors that not only allow uropathogenic E. coli to attach to and invade the bladder mucosa, but also provide a route by which the bacteria ascend through the ureters to the kidney to cause pyelonephritis. Genetic ablation of one or more uroplakin genes in mice causes severe retrograde vesicoureteral reflux, hydronephrosis, and renal failure, conditions that mirror certain human congenital diseases. Clearly, abnormalities of the lower urinary tract can impact the upper tract, and vice versa, through the urothelial connection. In this review, we highlight recent advances in the field of urothelial biology by focusing on the uroplakins, a group of urothelium-specific and differentiation-dependent integral membrane proteins. We discuss these proteins' biochemistry, structure, assembly, intracellular trafficking, and their emerging roles in urothelial biology, function, and pathological processes. We also call attention to important areas where greater investigative efforts are warranted.
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Garcia-España A, Mares R, Sun TT, DeSalle R. Intron evolution: testing hypotheses of intron evolution using the phylogenomics of tetraspanins. PLoS One 2009; 4:e4680. [PMID: 19262691 PMCID: PMC2650405 DOI: 10.1371/journal.pone.0004680] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2008] [Accepted: 12/30/2008] [Indexed: 11/20/2022] Open
Abstract
Background Although large scale informatics studies on introns can be useful in making broad inferences concerning patterns of intron gain and loss, more specific questions about intron evolution at a finer scale can be addressed using a gene family where structure and function are well known. Genome wide surveys of tetraspanins from a broad array of organisms with fully sequenced genomes are an excellent means to understand specifics of intron evolution. Our approach incorporated several new fully sequenced genomes that cover the major lineages of the animal kingdom as well as plants, protists and fungi. The analysis of exon/intron gene structure in such an evolutionary broad set of genomes allowed us to identify ancestral intron structure in tetraspanins throughout the eukaryotic tree of life. Methodology/Principal Findings We performed a phylogenomic analysis of the intron/exon structure of the tetraspanin protein family. In addition, to the already characterized tetraspanin introns numbered 1 through 6 found in animals, three additional ancient, phase 0 introns we call 4a, 4b and 4c were found. These three novel introns in combination with the ancestral introns 1 to 6, define three basic tetraspanin gene structures which have been conserved throughout the animal kingdom. Our phylogenomic approach also allows the estimation of the time at which the introns of the 33 human tetraspanin paralogs appeared, which in many cases coincides with the concomitant acquisition of new introns. On the other hand, we observed that new introns (introns other than 1–6, 4a, b and c) were not randomly inserted into the tetraspanin gene structure. The region of tetraspanin genes corresponding to the small extracellular loop (SEL) accounts for only 10.5% of the total sequence length but had 46% of the new animal intron insertions. Conclusions/Significance Our results indicate that tests of intron evolution are strengthened by the phylogenomic approach with specific gene families like tetraspanins. These tests add to our understanding of genomic innovation coupled to major evolutionary divergence events, functional constraints and the timing of the appearance of evolutionary novelty.
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Affiliation(s)
- Antonio Garcia-España
- Unitat de Recerca, Hospital Joan XXIII, Institut de Investigacio Sanitaria Rovira I Virgili (IISPV), Universitat Rovira i Virgili, Tarragona, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Universitat Rovira i Virgili, Tarragona, Spain
- * E-mail: (AG); (RD)
| | - Roso Mares
- Unitat de Recerca, Hospital Joan XXIII, Institut de Investigacio Sanitaria Rovira I Virgili (IISPV), Universitat Rovira i Virgili, Tarragona, Spain
| | - Tung-Tien Sun
- Department of Cell Biology, New York University School of Medicine, New York, New York, United States of America
- Department of Dermatology, New York University School of Medicine, New York, New York, United States of America
- Department of Pharmacology, New York University School of Medicine, New York, New York, United States of America
- Department of Urology, New York University School of Medicine, New York, New York, United States of America
| | - Rob DeSalle
- Sackler Institute for Comparative Genomics, American Museum of Natural History, New York, New York, United States of America
- * E-mail: (AG); (RD)
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Khandrika L, Kim FJ, Campagna A, Koul S, Meacham RB, Koul HK. Primary culture and characterization of human renal inner medullary collecting duct epithelial cells. J Urol 2008; 179:2057-63. [PMID: 18355855 DOI: 10.1016/j.juro.2008.01.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2007] [Indexed: 11/15/2022]
Abstract
PURPOSE Our understanding of physiological and pathophysiological events associated with inner medullary collecting duct epithelium is based on studies in cells isolated from mice and rats. We established primary cultures of hIMCD (human papillary collecting duct epithelial) cells. MATERIALS AND METHODS Normal papillary tissues were dissected from the surgical waste of consenting patients undergoing renal surgery. Tissues were digested enzymatically. Cells were maintained in Dulbecco's modified Eagle's medium supplemented with glucose and antibiotics. Cultures were treated with ethylenediaminetetraacetic acid and epithelial select medium was also used to obtain a pure epithelial culture. RESULTS The hIMCD cells grew in a monolayer. Cells showed the expression of epithelial specific markers, including cytokeratin, the tight junction marker zonula occludens 1 and the cytoskeletal protein vimentin. They lacked expression of factor VIII, which is a glycoprotein synthesized by endothelial cells. To our knowledge we also noted for the first time uroplakin expression in collecting duct epithelial cells. This expression was maintained in primary culture. The hIMCD cells in culture were highly resistant to hypertonic solutions and they responded to hypertonicity by cyclooxygenase-2 over expression. Moreover, these cells also survived prolonged periods of hypoxia. CONCLUSIONS To our knowledge this is the first report of successful culture and characterization of primary cultures of collecting duct epithelial cells from human renal papillae. These cells will serve as essential tools in helping us fill the gaps in our understanding of the events associated with the physiology and pathophysiology of human renal inner medullary collecting duct epithelium.
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Affiliation(s)
- Lakshmipathi Khandrika
- Signal Transduction and Molecular Urology Laboratory, Division of Urology, Department of Surgery, School of Medicine, University of Colorado at Denver and Health Sciences Center, Denver, Colorado 80262, USA
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Garcia-España A, Chung PJ, Sarkar IN, Stiner E, Sun TT, Desalle R. Appearance of new tetraspanin genes during vertebrate evolution. Genomics 2008; 91:326-34. [PMID: 18291621 DOI: 10.1016/j.ygeno.2007.12.005] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2007] [Revised: 12/03/2007] [Accepted: 12/17/2007] [Indexed: 10/22/2022]
Abstract
A detailed phylogenetic analysis of tetraspanins from 10 fully sequenced metazoan genomes and several fungal and protist genomes gives insight into their evolutionary origins and organization. Our analysis suggests that the superfamily can be divided into four large families. These four families-the CD family, CD63 family, uroplakin family, and RDS family-are further classified as consisting of several ortholog groups. The clustering of several ortholog groups together, such as the CD9/Tsp2/CD81 cluster, suggests functional relatedness of those ortholog groups. The fact that our studies are based on whole genome analysis enabled us to estimate not only the phylogenetic relationships among the tetraspanins, but also the first appearance in the tree of life of certain tetraspanin ortholog groups. Taken together, our data suggest that the tetraspanins are derived from a single (or a few) ancestral gene(s) through sequence divergence, rather than convergence, and that the majority of tetraspanins found in the human genome are vertebrate (21 instances), tetrapod (4 instances), or mammalian (6 instances) inventions.
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Affiliation(s)
- Antonio Garcia-España
- Research Unit, Universitat Rovira i Virgili, Hospital Joan XXIII, Pere Virgily Institute, Tarragona 43007, Spain.
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Repeated BCG treatment of mouse bladder selectively stimulates small GTPases and HLA antigens and inhibits single-spanning uroplakins. BMC Cancer 2007; 7:204. [PMID: 17980030 PMCID: PMC2212656 DOI: 10.1186/1471-2407-7-204] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2007] [Accepted: 11/02/2007] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Despite being a mainstay for treating superficial bladder carcinoma and a promising agent for interstitial cystitis, the precise mechanism of Bacillus Calmette-Guerin (BCG) remains poorly understood. It is particularly unclear whether BCG is capable of altering gene expression beyond its well-recognized pro-inflammatory effects and how this relates to its therapeutic efficacy. The objective of this study was to determine differentially expressed genes in the mouse bladder following repeated intravesical BCG therapy. METHODS Mice were transurethrally instilled with BCG or pyrogen-free on days 1, 7, 14, and 21. Seven days after the last instillation, urothelia along with the submucosa was removed and amplified ds-DNA was prepared from control- and BCG-treated bladder mucosa and used to generate suppression subtractive hybridization (SSH). Plasmids from control- and BCG-specific differentially expressed clones and confirmed by Virtual Northern were then purified and the inserts were sequenced and annotated. Finally, chromatin immune precipitation combined with real-time polymerase chain reaction assay (ChIP/Q-PCR) was used to validate SSH-selected transcripts. RESULTS Repeated intravesical BCG treatment induced an up regulation of genes associated with antigen presentation (B2M, HLA-A, HLA-DQA1, HLA-DQB2, HLA-E, HLA-G, IGHG, and IGH) and representatives of two IFNgamma-induced small GTPase families: the GBPs (GBP1, GBP2, and GBP5) and the p47GTPases (IIGTP1, IIGTP2, and TGTP). Genes expressed in saline-treated bladders but down-regulated by BCG included: the single-spanning uroplakins (UPK3a and UPK2), SPRR2G, GSTM5, and RSP 19. CONCLUSION Here we introduced a hypothesis-generator approach to determine key genes involved in the urothelium/sumbmucosa responses to BCG therapy. Urinary bladder responds to repeated BCG treatment by up-regulating not only antigen presentation-related genes, but also GBP and p47 small GTPases, both potentially serving to mount a resistance to the replication of the Mycobacterium. It will be of tremendous future interest to determine whether these immune response cascades play a role in the anti-cancer effects exerted by BCG.
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Saban R, D'Andrea MR, Andrade-Gordon P, Derian CK, Dozmorov I, Ihnat MA, Hurst RE, Simpson C, Saban MR. Regulatory network of inflammation downstream of proteinase-activated receptors. BMC PHYSIOLOGY 2007; 7:3. [PMID: 17397547 PMCID: PMC1853107 DOI: 10.1186/1472-6793-7-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2006] [Accepted: 03/30/2007] [Indexed: 12/13/2022]
Abstract
Background Protease-activated receptors (PAR) are present in the urinary bladder, and their expression is altered in response to inflammation. PARs are a unique class of G protein-coupled that carry their own ligands, which remain cryptic until unmasked by proteolytic cleavage. Although the canonical signal transduction pathway downstream of PAR activation and coupling with various G proteins is known and leads to the rapid transcription of genes involved in inflammation, the effect of PAR activation on the downstream transcriptome is unknown. We have shown that intravesical administration of PAR-activating peptides leads to an inflammatory reaction characterized by edema and granulocyte infiltration. Moreover, the inflammatory response to intravesical instillation of known pro-inflammatory stimuli such as E. coli lipopolysaccharide (LPS), substance P (SP), and antigen was strongly attenuated by PAR1- and to a lesser extent by PAR2-deficiency. Results Here, cDNA array experiments determined inflammatory genes whose expression is dependent on PAR1 activation. For this purpose, we compared the alteration in gene expression in wild type and PAR1-/- mice induced by classical pro-inflammatory stimuli (LPS, SP, and antigen). 75 transcripts were considered to be dependent on PAR-1 activation and further annotated in silico by Ingenuity Pathways Analysis (IPA) and gene ontology (GO). Selected transcripts were target validated by quantitative PCR (Q-PCR). Among PAR1-dependent transcripts, the following have been implicated in the inflammatory process: b2m, ccl7, cd200, cd63, cdbpd, cfl1, dusp1, fkbp1a, fth1, hspb1, marcksl1, mmp2, myo5a, nfkbia, pax1, plaur, ppia, ptpn1, ptprcap, s100a10, sim2, and tnfaip2. However, a balanced response to signals of injury requires a transient cellular activation of a panel of genes together with inhibitory systems that temper the overwhelming inflammation. In this context, the activation of genes such as dusp1 and nfkbia seems to counter-balance the inflammatory response to PAR activation by limiting prolonged activation of p38 MAPK and increased cytokine production. In contrast, transcripts such as arf6 and dcnt1 that are involved in the mechanism of PAR re-sensitization would tend to perpetuate the inflammatory reaction in response to common pro-inflammatory stimuli. Conclusion The combination of cDNA array results and genomic networks reveals an overriding participation of PAR1 in bladder inflammation, provides a working model for the involvement of downstream signaling, and evokes testable hypotheses regarding the transcriptome downstream of PAR1 activation. It remains to be determined whether or not mechanisms targeting PAR1 gene silencing or PAR1 blockade will ameliorate the clinical manifestation of cystitis.
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Affiliation(s)
- Ricardo Saban
- Department of Physiology, The University Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Michael R D'Andrea
- J&J Pharmaceutical Research and Development Spring House, PA 19477-0776, USA
| | | | - Claudia K Derian
- J&J Pharmaceutical Research and Development Spring House, PA 19477-0776, USA
| | - Igor Dozmorov
- Oklahoma Medical Research Foundation (OMRF), Arthritis and Immunology Research Program, Microarray/Euk. Genomics Core Facility, Oklahoma City, Oklahoma 73104, USA
| | - Michael A Ihnat
- Department of Cell Biology, The University Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Robert E Hurst
- Department of Urology, The University Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Cindy Simpson
- Department of Physiology, The University Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Marcia R Saban
- Department of Physiology, The University Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
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Mahbub Hasan AKM, Ou Z, Sakakibara K, Hirahara S, Iwasaki T, Sato KI, Fukami Y. Characterization of Xenopus egg membrane microdomains containing uroplakin Ib/III complex: roles of their molecular interactions for subcellular localization and signal transduction. Genes Cells 2007; 12:251-67. [PMID: 17295843 DOI: 10.1111/j.1365-2443.2007.01048.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A single-transmembrane protein uroplakin III (UPIII) and its tetraspanin binding-partner uroplakin Ib (UPIb) are members of the UP proteins that were originally identified in mammalian urothelium. In Xenopus laevis eggs, these proteins: xUPIII and xUPIb, are components of the cholesterol-enriched membrane microdomains or "rafts" and involved in the sperm-egg membrane interaction and subsequent egg activation signaling via Src tyrosine kinase at fertilization. Here, we investigate whether the xUPIII-xUPIb complex is in close proximity to CD9, a tetraspanin that has been implicated in the sperm-egg fusion in the mouse and GM1, a ganglioside typically enriched in egg rafts. Preparation of the egg membrane microdomains using different non-ionic detergents (Brij 98 and Triton X-100), chemical cross-linking, co-immunoprecipitation, in vitro kinase assay and in vitro fertilization experiments demonstrated that GM1, but not CD9, is in association with the xUPIII-xUPIb complex and contributes to the sperm-dependent egg activation. Transfection experiments using HEK293 cells demonstrated that xUPIII and xUPIb localized efficiently to the cholesterol-dependent membrane microdomains when they were co-expressed, whereas co-expression of xUPIII and CD9, instead of xUPIb, did not show this effect. Furthermore, xUPIII and xUPIb were shown to suppress kinase activity of the wild type, but not a constitutively active form of, Xenopus Src protein co-expressed in HEK293 cells. These results provide novel insight into the molecular architecture of the egg membrane microdomains containing xUPIII, xUPIb and Src, which may contribute to the understanding of sperm-egg interaction and signaling during Xenopus fertilization.
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Affiliation(s)
- A K M Mahbub Hasan
- Graduate School of Science and Technology, Kobe University, Kobe 657-8501, Japan
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Tu L, Kong XP, Sun TT, Kreibich G. Integrity of all four transmembrane domains of the tetraspanin uroplakin Ib is required for its exit from the ER. J Cell Sci 2006; 119:5077-86. [PMID: 17158912 DOI: 10.1242/jcs.03285] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The surface of the mammalian urinary bladder is covered by a crystalline, asymmetric unit membrane (AUM) structure that contains the four major uroplakins (UPs): Ia, Ib, II and IIIa. UPIa and UPIb belong to the family of tetraspanins. Although UPIa and UPIb are structurally conserved, only UPIb could exit from the endoplasmic reticulum (ER) and reach the cell surface when expressed alone in 293T cells. Modifications of the large extracellular loop of UPIb, such as mutation of the N-glycosylation site or the cysteines involved in the formation of three disulfide bridges, or exchanging the large luminal loop of UPIb with that of UPIa did not affect the ability of UPIb to reach the cell surface. However, modifications of any of the four transmembrane domains of UPIb led to ER retention, suggesting that the proper formation of helical bundles consisting of the tetraspanin transmembrane domains is a prerequisite for UPIb to exit from the ER. Results of sedimentation analysis suggested that aggregate formation is a mechanism for ER retention.
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Affiliation(s)
- Liyu Tu
- Department of Cell Biology, The Ronald O Perelman, NYU Cancer Institute, New York University School of Medicine, New York, NY 10016, USA
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