1
|
Ullah A, Ali N, Ahmad S, Rahman SU, Alghamdi S, Bannunah AM, Ali R, Aman A, Khan J, Hussain H, Sahibzada MUK. Glycogen synthase kinase-3 (GSK-3) a magic enzyme: it's role in diabetes mellitus and glucose homeostasis, interactions with fluroquionlones. A mini-review. BRAZ J BIOL 2021; 83:e250179. [PMID: 34524376 DOI: 10.1590/1519-6984.250179] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 05/01/2021] [Indexed: 01/08/2023] Open
Abstract
Diabetes mellitus (DM) is a non-communicable disease throughout the world in which there is persistently high blood glucose level from the normal range. The diabetes and insulin resistance are mainly responsible for the morbidities and mortalities of humans in the world. This disease is mainly regulated by various enzymes and hormones among which Glycogen synthase kinase-3 (GSK-3) is a principle enzyme and insulin is the key hormone regulating it. The GSK-3, that is the key enzyme is normally showing its actions by various mechanisms that include its phosphorylation, formation of protein complexes, and other cellular distribution and thus it control and directly affects cellular morphology, its growth, mobility and apoptosis of the cell. Disturbances in the action of GSK-3 enzyme may leads to various disease conditions that include insulin resistance leading to diabetes, neurological disease like Alzheimer's disease and cancer. Fluoroquinolones are the most common class of drugs that shows dysglycemic effects via interacting with GSK-3 enzyme. Therefore, it is the need of the day to properly understand functions and mechanisms of GSK-3, especially its role in glucose homeostasis via effects on glycogen synthase.
Collapse
Affiliation(s)
- A Ullah
- Department of Pharmacy, Shaheed Benazir Bhutto University, Sheringal, Dir Upper, Khyber Pakhtunkhwa, Pakistan.,Institute of Basic Medical Sciences, Khyber Medical University, Peshawar, Khyber Pakhtunkhwa, Pakistan
| | - N Ali
- Institute of Basic Medical Sciences, Khyber Medical University, Peshawar, Khyber Pakhtunkhwa, Pakistan
| | - S Ahmad
- Department of Pharmacy, Shaheed Benazir Bhutto University, Sheringal, Dir Upper, Khyber Pakhtunkhwa, Pakistan
| | - S U Rahman
- Department of Pharmacy, Shaheed Benazir Bhutto University, Sheringal, Dir Upper, Khyber Pakhtunkhwa, Pakistan
| | - S Alghamdi
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - A M Bannunah
- Department of Basic Sciences, Common First year Deanship, Umm Al-Qura University, Makkah, Saudi Arabia
| | - R Ali
- Institute of Basic Medical Sciences, Khyber Medical University, Peshawar, Khyber Pakhtunkhwa, Pakistan
| | - A Aman
- Department of Pharmacy, Shaheed Benazir Bhutto University, Sheringal, Dir Upper, Khyber Pakhtunkhwa, Pakistan
| | - J Khan
- Department of Pharmacy, University of Malakand, Chakdara Dir Lower, Khyber Pakhtunkhwa, Pakistan
| | - H Hussain
- Department of Pharmacy, Shaheed Benazir Bhutto University, Sheringal, Dir Upper, Khyber Pakhtunkhwa, Pakistan
| | - M U K Sahibzada
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar, Khyber Pakhtunkhwa, Pakistan
| |
Collapse
|
2
|
Abstract
Malaysia is currently experiencing an epidemiologic and demographic transition. Rapid
urbanization and vast changes in lifestyles among the population has led to widespread
cardiovascular disease (CVD) outcomes. Also, until now, the most prevalent
cardiovascular risk factor has remained unknown among the Malaysian population. This
study aimed to identify the most significant cardiovascular risk factor among multiethnic
adults in Dengkil, Selangor. A case-control retrospective study comparing past exposure
(retrospective) between the case (total cholesterol (TC) ≥ 5.18 mmol/L) and control
groups (TC < 5.18 mmol/L) on CVD risk via guided questionnaire comprised of
International Physical Activity Questionnaire (IPAQ), Food Frequency Questionnaire
(FFQ), Depression, Anxiety and Stress Scales (DASS)-21 and SF-12 was carried out
among 180 respondents aged 20 to 56 years in Dengkil, Selangor. In the present study,
purposive and consecutive sampling were both applied to recruit respondents and also
considering ethnic as a factor; thus, quota sampling was also conducted. The data were
analyzed using Mann-Whitney, Kruskal-Wallis, Chi-Square, Independent Samples t-test
and multiple logistic regression tests. The findings indicated there were no significant
differences (p > 0.05) regarding all the risk factors between the case and control groups
except for personal medical history (p < 0.05). Chinese possessed the highest number of
significant risk and protective factors. Lastly, the quality of life of Malay controls was
higher than that of cases in terms of Physical Component Summary (PCS). Generally, all
the risk factors were independent in terms of total cholesterol status, except for personal
medical history. The significance of risk factors and protective factors varies according to
ethnicity.
Collapse
|
3
|
Aman A, Salim B, Munshi K, Raza SA, Khan FA. Effect on Neonatal Outcome of Pharmacological Interventions for Attenuation of the Maternal Haemodynamic Response to Tracheal Intubation: A Systematic Review. Anaesth Intensive Care 2018; 46:258-271. [DOI: 10.1177/0310057x1804600303] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The primary aim of this systematic review was to assess the effect on neonatal outcome of pharmacological interventions used for attenuation of the haemodynamic response to tracheal intubation in patients undergoing caesarean Section under general anaesthesia. A systematic search of randomised controlled trials from 1990 to 2015 was conducted. The primary outcome measure was the Apgar score at five minutes and secondary outcomes were umbilical arterial blood gas parameters and neurological adaptive capacity scores. Twenty-seven randomised controlled trials (1,689 patients) were included in the qualitative synthesis. Only five studies using opioids (383 patients) and five studies using non-opioid analgesics (358 patients) were subjected to meta-analysis. The Apgar score at five minutes was significantly lower in neonates of opioid-treated mothers (mean difference: −0.29, 95% confidence interval −0.56 to −0.02, P-value=0.03) compared to mothers in the control group; the umbilical arterial pH was lower and there was a higher requirement for tactile stimulation in neonates. No difference was seen in Apgar scores of neonates of mothers administered non-opioid analgesics compared to placebo. No difference was observed in other parameters between opioid- or non-opioid-treated mothers. This review suggests that opioid interventions for attenuation of the haemodynamic response to tracheal intubation in pregnant patients under general anaesthesia affect neonatal Apgar scores at five minutes in neonates but the difference did not appear to be clinically meaningful. We were unable to demonstrate any difference in safety.
Collapse
Affiliation(s)
- A. Aman
- Senior Instructor, Department of Anaesthesiology, Aga Khan University, Pakistan
| | - B. Salim
- Senior Instructor, Department of Anaesthesiology, Aga Khan University, Pakistan
| | - K. Munshi
- Obstetric Anaesthesia, Department of Anaesthesiology, Aga Khan University, Pakistan
| | - S. A. Raza
- Research Coordinator, Department of Anaesthesiology, Aga Khan University, Pakistan
| | - F. A. Khan
- Department of Anaesthesiology, Aga Khan University, Pakistan
| |
Collapse
|
4
|
Steinmetz PRH, Aman A, Kraus JEM, Technau U. Gut-like ectodermal tissue in a sea anemone challenges germ layer homology. Nat Ecol Evol 2017; 1:1535-1542. [PMID: 29185520 DOI: 10.1038/s41559-017-0285-5] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 07/19/2017] [Indexed: 12/11/2022]
Abstract
Cnidarians (for example, sea anemones and jellyfish) develop from an outer ectodermal and inner endodermal germ layer, whereas bilaterians (for example, vertebrates and flies) additionally have a mesodermal layer as intermediate germ layer. Currently, cnidarian endoderm (that is, 'mesendoderm') is considered homologous to both bilaterian endoderm and mesoderm. Here we test this hypothesis by studying the fate of germ layers, the localization of gut cell types, and the expression of numerous 'endodermal' and 'mesodermal' transcription factor orthologues in the anthozoan sea anemone Nematostella vectensis. Surprisingly, we find that the developing pharyngeal ectoderm and its derivatives display a transcription-factor expression profile (foxA, hhex, islet, soxB1, hlxB9, tbx2/3, nkx6 and nkx2.2) and cell-type combination (exocrine and insulinergic) reminiscent of the developing bilaterian midgut, and, in particular, vertebrate pancreatic tissue. Endodermal derivatives, instead, display cell functions and transcription-factor profiles similar to bilaterian mesoderm derivatives (for example, somatic gonad and heart). Thus, our data supports an alternative model of germ layer homologies, where cnidarian pharyngeal ectoderm corresponds to bilaterian endoderm, and the cnidarian endoderm is homologous to bilaterian mesoderm.
Collapse
Affiliation(s)
- Patrick R H Steinmetz
- Department for Molecular Evolution and Development, Centre for Organismal Systems Biology, University of Vienna, Althanstraße 14, A-1090, Vienna, Austria. .,Sars International Centre for Marine Molecular Biology, University of Bergen, Thormøhlensgate 55, N-5006, Bergen, Norway.
| | - Andy Aman
- Department for Molecular Evolution and Development, Centre for Organismal Systems Biology, University of Vienna, Althanstraße 14, A-1090, Vienna, Austria.,Department of Biology, University of Virginia, Charlottesville, VA, 22904, USA
| | - Johanna E M Kraus
- Department for Molecular Evolution and Development, Centre for Organismal Systems Biology, University of Vienna, Althanstraße 14, A-1090, Vienna, Austria.,Sars International Centre for Marine Molecular Biology, University of Bergen, Thormøhlensgate 55, N-5006, Bergen, Norway
| | - Ulrich Technau
- Department for Molecular Evolution and Development, Centre for Organismal Systems Biology, University of Vienna, Althanstraße 14, A-1090, Vienna, Austria.
| |
Collapse
|
5
|
|
6
|
Supriyo PT, Hanum F, Aman A, Bakhtiar T. OPTIMIZATION IN MSW MANAGEMENT SYSTEM: SITE SELECTION OF THE WASTE-TO-ENERGY FACILITIES. ACTA ACUST UNITED AC 2017. [DOI: 10.17654/ms101030473] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
|
7
|
Kozlovskaja-Gumbrienė A, Yi R, Alexander R, Aman A, Jiskra R, Nagelberg D, Knaut H, McClain M, Piotrowski T. Proliferation-independent regulation of organ size by Fgf/Notch signaling. eLife 2017; 6. [PMID: 28085667 PMCID: PMC5235355 DOI: 10.7554/elife.21049] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 12/23/2016] [Indexed: 12/31/2022] Open
Abstract
Organ morphogenesis depends on the precise orchestration of cell migration, cell shape changes and cell adhesion. We demonstrate that Notch signaling is an integral part of the Wnt and Fgf signaling feedback loop coordinating cell migration and the self-organization of rosette-shaped sensory organs in the zebrafish lateral line system. We show that Notch signaling acts downstream of Fgf signaling to not only inhibit hair cell differentiation but also to induce and maintain stable epithelial rosettes. Ectopic Notch expression causes a significant increase in organ size independently of proliferation and the Hippo pathway. Transplantation and RNASeq analyses revealed that Notch signaling induces apical junctional complex genes that regulate cell adhesion and apical constriction. Our analysis also demonstrates that in the absence of patterning cues normally provided by a Wnt/Fgf signaling system, rosettes still self-organize in the presence of Notch signaling. DOI:http://dx.doi.org/10.7554/eLife.21049.001
Collapse
Affiliation(s)
| | - Ren Yi
- Stowers Institute for Medical Research, Kansas City, United States
| | | | - Andy Aman
- Stowers Institute for Medical Research, Kansas City, United States
| | - Ryan Jiskra
- Stowers Institute for Medical Research, Kansas City, United States
| | - Danielle Nagelberg
- Developmental Genetics Program and Kimmel Center for Stem Cell Biology, Skirball Institute of Biomolecular Medicine, New York University Langone Medical Center, New York, United States
| | - Holger Knaut
- Developmental Genetics Program and Kimmel Center for Stem Cell Biology, Skirball Institute of Biomolecular Medicine, New York University Langone Medical Center, New York, United States
| | - Melainia McClain
- Stowers Institute for Medical Research, Kansas City, United States
| | | |
Collapse
|
8
|
Abstract
The startling capacity of the amphibian Spemann organizer to induce naïve cells to form a Siamese twin embryo with a second set of body axes is one of the hallmarks of developmental biology. However, the axis-inducing potential of the blastopore-associated tissue is commonly regarded as a chordate feature. Here we show that the blastopore lip of a non-bilaterian metazoan, the anthozoan cnidarian Nematostella vectensis, possesses the same capacity and uses the same molecular mechanism for inducing extra axes as chordates: Wnt/β-catenin signaling. We also demonstrate that the establishment of the secondary, directive axis in Nematostella by BMP signaling is sensitive to an initial Wnt signal, but once established the directive axis becomes Wnt-independent. By combining molecular analysis with experimental embryology, we provide evidence that the emergence of the Wnt/β-catenin driven blastopore-associated axial organizer predated the cnidarian-bilaterian split over 600 million years ago.
Collapse
Affiliation(s)
- Yulia Kraus
- Department for Molecular Evolution and Development, Centre of Organismal Systems Biology, University of Vienna, Althanstraße 14, Vienna A-1090, Austria
- Department of Evolutionary Biology, Biological Faculty, Moscow State University, Leninskiye gory 1/12, Moscow 119234, Russia
| | - Andy Aman
- Department for Molecular Evolution and Development, Centre of Organismal Systems Biology, University of Vienna, Althanstraße 14, Vienna A-1090, Austria
| | - Ulrich Technau
- Department for Molecular Evolution and Development, Centre of Organismal Systems Biology, University of Vienna, Althanstraße 14, Vienna A-1090, Austria
| | - Grigory Genikhovich
- Department for Molecular Evolution and Development, Centre of Organismal Systems Biology, University of Vienna, Althanstraße 14, Vienna A-1090, Austria
| |
Collapse
|
9
|
Wang Z, Dove P, Wang X, Shamas-Din A, Li Z, Nachman A, Oh YJ, Hurren R, Ruschak A, Climie S, Press B, Griffin C, Undzys E, Aman A, Al-awar R, Kay LE, O'Neill D, Trudel S, Slassi M, Schimmer AD. FV-162 is a novel, orally bioavailable, irreversible proteasome inhibitor with improved pharmacokinetics displaying preclinical efficacy with continuous daily dosing. Cell Death Dis 2015; 6:e1815. [PMID: 26158521 PMCID: PMC4650734 DOI: 10.1038/cddis.2015.187] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Revised: 04/24/2015] [Accepted: 06/03/2015] [Indexed: 01/15/2023]
Abstract
Approved proteasome inhibitors have advanced the treatment of multiple myeloma but are associated with serious toxicities, poor pharmacokinetics, and most with the inconvenience of intravenous administration. We therefore sought to identify novel orally bioavailable proteasome inhibitors with a continuous daily dosing schedule and improved therapeutic window using a unique drug discovery platform. We employed a fluorine-based medicinal chemistry technology to synthesize 14 novel analogs of epoxyketone-based proteasome inhibitors and screened them for their stability, ability to inhibit the chymotrypsin-like proteasome, and antimyeloma activity in vitro. The tolerability, pharmacokinetics, pharmacodynamic activity, and antimyeloma efficacy of our lead candidate were examined in NOD/SCID mice. We identified a tripeptide epoxyketone, FV-162, as a metabolically stable, potent proteasome inhibitor cytotoxic to human myeloma cell lines and primary myeloma cells. FV-162 had limited toxicity and was well tolerated on a continuous daily dosing schedule. Compared with the benchmark oral irreversible proteasome inhibitor, ONX-0192, FV-162 had a lower peak plasma concentration and longer half-life, resulting in a larger area under the curve (AUC). Oral FV-162 treatment induced rapid, irreversible inhibition of chymotrypsin-like proteasome activity in murine red blood cells and inhibited tumor growth in a myeloma xenograft model. Our data suggest that oral FV-162 with continuous daily dosing schedule displays a favorable safety, efficacy, and pharmacokinetic profile in vivo, identifying it as a promising lead for clinical evaluation in myeloma therapy.
Collapse
Affiliation(s)
- Z Wang
- 1] Princess Margaret Cancer Centre, Toronto, ON, Canada [2] Fluorinov Pharma Inc., Toronto, ON, Canada
| | - P Dove
- Fluorinov Pharma Inc., Toronto, ON, Canada
| | - X Wang
- Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - A Shamas-Din
- Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - Z Li
- Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - A Nachman
- Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - Y J Oh
- Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - R Hurren
- Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - A Ruschak
- Department of Molecular Genetics, Biochemistry and Chemistry, University of Toronto, Toronto, ON, Canada
| | - S Climie
- Fluorinov Pharma Inc., Toronto, ON, Canada
| | - B Press
- Ontario Institute for Cancer Research, Toronto, ON, Canada
| | - C Griffin
- Ontario Institute for Cancer Research, Toronto, ON, Canada
| | - E Undzys
- Ontario Institute for Cancer Research, Toronto, ON, Canada
| | - A Aman
- Ontario Institute for Cancer Research, Toronto, ON, Canada
| | - R Al-awar
- Ontario Institute for Cancer Research, Toronto, ON, Canada
| | - L E Kay
- Department of Molecular Genetics, Biochemistry and Chemistry, University of Toronto, Toronto, ON, Canada
| | - D O'Neill
- 1] Fluorinov Pharma Inc., Toronto, ON, Canada [2] Ontario Institute for Cancer Research, Toronto, ON, Canada
| | - S Trudel
- Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - M Slassi
- Fluorinov Pharma Inc., Toronto, ON, Canada
| | - A D Schimmer
- Princess Margaret Cancer Centre, Toronto, ON, Canada
| |
Collapse
|
10
|
Luchman A, Aman A, Al-Awar R, Weiss S. ET-35 * PACRITINIB: A NOVEL JAK/STAT INHIBITOR WITH TRANSLATIONAL RELEVANCE FOR GBM. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou255.35] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
11
|
Kaplan D, Grinshtein N, Rioseco C, Luchman A, Datti A, Aman A, Uehling D, Prakesch M, Wrana J, Cairncross G, Shen Y, Jones S, Marra M, Senger D, Robbins S, Al-Awar R, Moran M, Weiss S. COMBINED DRUG SCREENING AND PHOSPHOPROTEOMICS IDENTIFIES CANDIDATE BRAIN TUMOR THERAPEUTICS AND NOVEL TARGETS IN PRIMARY HUMAN BRAIN TUMOR-INITIATING CELLS. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou206.72] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
12
|
Weiss S, Nguyen S, Luchman A, Grinshtein N, Stechishin O, Aman A, Uehling D, al-Awar R, Kaplan D. BRAIN TUMOUR INITIATING CELLS AND TARGETING STAT3 ONCOGENIC SIGNALLING IN GBM. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou208.46] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
13
|
Aman A, Piotrowski T. Cell-cell signaling interactions coordinate multiple cell behaviors that drive morphogenesis of the lateral line. Cell Adh Migr 2012; 5:499-508. [PMID: 22274715 DOI: 10.4161/cam.5.6.19113] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The zebrafish sensory lateral line system has emerged as a powerful model for the mechanistic study of collective cell migration and morphogenesis. Recent work has uncovered the details of a signaling network involving the Wnt/β-catenin, Fgf and Delta-Notch pathways that patterns the migrating lateral line primordium into distinct regions. Cells within these regions exhibit different fundamental behaviors that together orchestrate normal lateral line morphogenesis. In this review, we summarize the signaling network that patterns the migrating lateral line primordium and describe how this patterning coordinates crucial morphogenic cell behaviors.
Collapse
Affiliation(s)
- Andy Aman
- Department of Neurobiology and Anatomy, University of Utah Medical School, Salt Lake City, UT, USA
| | | |
Collapse
|
14
|
Piotrowski T, Aman A, Galanternik MV, Crosbie R. Migrating Placodes give rise to the Lateral Line System. FASEB J 2011. [DOI: 10.1096/fasebj.25.1_supplement.184.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Andy Aman
- Neurobiology and AnatomyUniversity of UtahSalt Lake CityUT
| | | | - Robert Crosbie
- Neurobiology and AnatomyUniversity of UtahSalt Lake CityUT
| |
Collapse
|
15
|
Aman A, Nguyen M, Piotrowski T. Wnt/β-catenin dependent cell proliferation underlies segmented lateral line morphogenesis. Dev Biol 2010; 349:470-82. [PMID: 20974120 DOI: 10.1016/j.ydbio.2010.10.022] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2010] [Revised: 10/14/2010] [Accepted: 10/16/2010] [Indexed: 11/27/2022]
Abstract
Morphogenesis is a fascinating but complex and incompletely understood developmental process. The sensory lateral line system consists of only a few hundred cells and is experimentally accessible making it an excellent model system to interrogate the cellular and molecular mechanisms underlying segmental morphogenesis. The posterior lateral line primordium periodically deposits prosensory organs as it migrates to the tail tip. We demonstrate that periodic proneuromast deposition is governed by a fundamentally different developmental mechanism than the classical models of developmental periodicity represented by vertebrate somitogenesis and early Drosophila development. Our analysis demonstrates that proneuromast deposition is driven by periodic lengthening of the primordium and a stable Wnt/β-catenin activation domain in the leading region of the primordium. The periodic lengthening of the primordium is controlled by Wnt/β-catenin/Fgf-dependent proliferation. Once proneuromasts are displaced into the trailing Wnt/β-catenin-free zone they are deposited. We have previously shown that Wnt/β-catenin signaling induces Fgf signaling and that interactions between these two pathways regulate primordium migration and prosensory organ formation. Therefore, by coordinating migration, prosensory organ formation and proliferation, localized activation of Wnt/β-catenin signaling in the leading zone of the primordium plays a crucial role in orchestrating lateral line morphogenesis.
Collapse
Affiliation(s)
- Andy Aman
- University of Utah Medical School, Dept. of Neurobiology and Anatomy, MREB 401, Salt Lake City, UT 84132, USA
| | | | | |
Collapse
|
16
|
Aman A, Nguyen M, Piotrowski T. Wnt/β-catenin signaling regulates morphogenesis of the zebrafish lateral line. Dev Biol 2010. [DOI: 10.1016/j.ydbio.2010.05.091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
17
|
Abstract
During development, functional structures must form with the correct three-dimensional geometry composed of the correct cell types. In many cases cell types are specified at locations distant to where they will ultimately reside for normal biological function. Although cell migration is crucial for normal development and morphogenesis of animal body plans and organ systems, abnormal cell migration during adult life underlies pathological states such as invasion and metastasis of cancer. In both contexts cells migrate either individually, as loosely associated sheets or as clusters of cells. In this review, we summarize, compare and integrate knowledge gained from several in vivo model systems that have yielded insights into the regulation of morphogenic cell migration, such as the zebrafish lateral line primordium and primordial germ cells, Drosophila border cell clusters, vertebrate neural crest migration and angiogenic sprouts in the post-natal mouse retina. Because of its broad multicontextual and multiphylletic distribution, understanding cell migration in its various manifestations in vivo is likely to provide new insights into both the function and malfunction of key embryonic and postembryonic events. In this review, we will provide a succinct phenotypic description of the many model systems utilized to study cell migration in vivo. More importantly, we will highlight, compare and integrate recent advances in our understanding of how cell migration is regulated in these varied model systems with special emphasis on individual and collective cell movements.
Collapse
Affiliation(s)
- Andy Aman
- University of Utah, Department Neurobiology and Anatomy, 20N Medical Drive, MREB 401, Salt Lake City, UT 84132, USA
| | | |
Collapse
|
18
|
Aman A, Piotrowski T. Multiple signaling interactions coordinate collective cell migration of the posterior lateral line primordium. Cell Adh Migr 2009; 3:365-8. [PMID: 19736513 DOI: 10.4161/cam.3.4.9548] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Collective migration of adherent cohorts of cells is a common and crucial phenomenon during embryonic development and adult tissue homeostasis. The zebrafish posterior lateral line primordium has emerged as a powerful in vivo model to study collective migration due to its relative simplicity and accessibility. While it has become clear that chemokine signaling is the primary guidance system responsible for directing the primordium along its migratory path it is not clear what mechanisms downstream of chemokine signaling coordinate migration of individual cells within the primordium. In this review, we summarize the cell signaling interactions that underlie collective migration of the primordium and discuss proposed mechanisms for the function of chemokine signaling in this tissue.
Collapse
Affiliation(s)
- Andy Aman
- Neurobiology and Anatomy Department, University of Utah, Salt Lake City, UT 84132, USA.
| | | |
Collapse
|
19
|
Aman A, Piotrowski T. Wnt/beta-catenin and Fgf signaling control collective cell migration by restricting chemokine receptor expression. Dev Cell 2009; 15:749-61. [PMID: 19000839 DOI: 10.1016/j.devcel.2008.10.002] [Citation(s) in RCA: 189] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2008] [Revised: 07/27/2008] [Accepted: 10/06/2008] [Indexed: 11/25/2022]
Abstract
Collective cell migration is a hallmark of embryonic morphogenesis and cancer metastases. However, the molecular mechanisms regulating coordinated cell migration remain poorly understood. A genetic dissection of this problem is afforded by the migrating lateral line primordium of the zebrafish. We report that interactions between Wnt/beta-catenin and Fgf signaling maintain primordium polarity by differential regulation of gene expression in the leading versus the trailing zone. Wnt/beta-catenin signaling in leader cells informs coordinated migration via differential regulation of the two chemokine receptors, cxcr4b and cxcr7b. These findings uncover a molecular mechanism whereby a migrating tissue maintains stable, polarized gene expression domains despite periodic loss of whole groups of cells. Our findings also bear significance for cancer biology. Although the Fgf, Wnt/beta-catenin, and chemokine signaling pathways are well known to be involved in cancer progression, these studies provide in vivo evidence that these pathways are functionally linked.
Collapse
Affiliation(s)
- Andy Aman
- Department of Neurobiology and Anatomy, University of Utah School of Medicine, 401 MREB, 20N Medical Drive, Salt Lake City, UT 84132, USA
| | | |
Collapse
|
20
|
Aman A, Piotrowski T. Interactions between [beta]-Catenin and Fgf signaling coordinate directional migration of groups of cells. Dev Biol 2008. [DOI: 10.1016/j.ydbio.2008.05.267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
21
|
Aman A. [Social coercion]. Sven Tidskr 2001; 66:30-3. [PMID: 11633342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
|
22
|
Aman A, Nicolau G, Nicolescu M, Pralea T, Sturdza N, Stancu I. [Long-term results in a group of patients with chronic pulmonary tuberculosis treated with a regimen of RMP and ETB 2/7]. Rev Ig Bacteriol Virusol Parazitol Epidemiol Pneumoftiziol Pneumoftiziol 1979; 28:115-20. [PMID: 227037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
23
|
Aman A, Brown CJ, Johnson Z. Size and shape of Kedah-Kelantan cows. Growth 1978; 42:486-94. [PMID: 750311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Body weight and nine body measurements were recorded on 79 mature Kedah-Kelantan cows at two locations. The Kedah-Kelantan is an indigenous cattle of Malaysia. A principal component analysis was used to study size and shape as indicated by the dependence structure among measurements. The total variation among measurements associated with the first principal component which was interpreted as a measure of general size was 40.8%. The second principal component contrasted cows tall at the withers, and deep at the chest with top line sloping downward and under line sloping upward from front to rear with those having less wither height and chest depth and straighter lines. This contrast accounted for 14.3% of the variation in body dimensions. The third principal component contrasted long, narrow, and deeper cows with a more compact type. This contrast accounted for 10.7% of the variation in body dimensions.
Collapse
|
24
|
Kertesz M, Koller J, Aman A. Ab initio Hartree–Fock crystal orbital studies. II. Energy bands of an infinite carbon chain. J Chem Phys 1978. [DOI: 10.1063/1.436070] [Citation(s) in RCA: 86] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
25
|
|