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Duan F, Wang X, Wang H, Wang Y, Zhang Y, Chen J, Zhu X, Chen B. GDF11 ameliorates severe acute pancreatitis through modulating macrophage M1 and M2 polarization by targeting the TGFβR1/SMAD-2 pathway. Int Immunopharmacol 2022; 108:108777. [PMID: 35461108 DOI: 10.1016/j.intimp.2022.108777] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 04/01/2022] [Accepted: 04/12/2022] [Indexed: 02/07/2023]
Abstract
Severe acute pancreatitis (SAP), as a typical acute inflammatory injury disease, is one of the acute gastrointestinal diseases with a remarkable mortality rate. Macrophages, typical inflammatory cells involved in SAP, play an important role in the pathogenesis of SAP, which are separated into proinflammation M1 and antiinflammation M2. Growth and differentiation factor 11 (GDF11), as a member of the TGF-β family also called BMP-11, has been discovered to suppress inflammation. However, the mechanism by which GDF11 inhibits inflammation and whether it can ameliorate SAP are still elusive. The present research aimed to investigate the roles of GDF11 in SAP and the potential immunomodulatory effect of macrophage polarization. The mouse and rat SAP model were constructed by caerulein and retrograde injection of sodium taurocholate respectively. The effects of GDF11 on SAP were observed by serology, histopathology and tissue inflammation, and the effects of GDF11 on the polarization of macrophages in vivo were observed. Raw264.7 and THP1 crells were used to study the effect of GDF11 on macrophage polarization in vitro. To further investigate the causal link underneath, our team first completed RNA and proteome sequencing, and utilized specific suppressor to determine the implicated signal paths. Herein, we discovered that GDF11 alleviated the damage of pancreatic tissues in cerulein induced SAP mice and SAP rats induced by retrograde injection of sodium taurocholate, and further found that GDF11 facilitated M2 macrophage polarization and diminished M1 macrophage polarization in vivo and in vitro. Subsequently, we further found that the regulation of GDF11 on macrophage polarization through TGFβR1/smad2 pathway. Our results revealed that GDF11 ameliorated SAP and diminished M1 macrophage polarization and facilitated M2 macrophage polarization. The Role of GDF11 in modulating macrophage polarization might be one of the mechanisms by which GDF11 played a protective role in pancreatic tissues during SAP.
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Affiliation(s)
- Feixiang Duan
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000 Zhejiang Province, China
| | - Xiaowu Wang
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000 Zhejiang Province, China; Department of Hepatobiliary Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000 Zhejiang Province, China
| | - Hongwei Wang
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000 Zhejiang Province, China
| | - Yongqiang Wang
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000 Zhejiang Province, China; Department of Hepatobiliary Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000 Zhejiang Province, China
| | - Yan Zhang
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000 Zhejiang Province, China
| | - Jiawei Chen
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000 Zhejiang Province, China
| | - Xiandong Zhu
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000 Zhejiang Province, China; Department of Hepatobiliary Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000 Zhejiang Province, China.
| | - Bicheng Chen
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000 Zhejiang Province, China; Department of Hepatobiliary Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000 Zhejiang Province, China.
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2
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Omosule CL, Phillips CL. Deciphering Myostatin's Regulatory, Metabolic, and Developmental Influence in Skeletal Diseases. Front Genet 2021; 12:662908. [PMID: 33854530 PMCID: PMC8039523 DOI: 10.3389/fgene.2021.662908] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 03/05/2021] [Indexed: 01/08/2023] Open
Abstract
Current research findings in humans and other mammalian and non-mammalian species support the potent regulatory role of myostatin in the morphology and function of muscle as well as cellular differentiation and metabolism, with real-life implications in agricultural meat production and human disease. Myostatin null mice (mstn−/−) exhibit skeletal muscle fiber hyperplasia and hypertrophy whereas myostatin deficiency in larger mammals like sheep and pigs engender muscle fiber hyperplasia. Myostatin’s impact extends beyond muscles, with alterations in myostatin present in the pathophysiology of myocardial infarctions, inflammation, insulin resistance, diabetes, aging, cancer cachexia, and musculoskeletal disease. In this review, we explore myostatin’s role in skeletal integrity and bone cell biology either due to direct biochemical signaling or indirect mechanisms of mechanotransduction. In vitro, myostatin inhibits osteoblast differentiation and stimulates osteoclast activity in a dose-dependent manner. Mice deficient in myostatin also have decreased osteoclast numbers, increased cortical thickness, cortical tissue mineral density in the tibia, and increased vertebral bone mineral density. Further, we explore the implications of these biochemical and biomechanical influences of myostatin signaling in the pathophysiology of human disorders that involve musculoskeletal degeneration. The pharmacological inhibition of myostatin directly or via decoy receptors has revealed improvements in muscle and bone properties in mouse models of osteogenesis imperfecta, osteoporosis, osteoarthritis, Duchenne muscular dystrophy, and diabetes. However, recent disappointing clinical trial outcomes of induced myostatin inhibition in diseases with significant neuromuscular wasting and atrophy reiterate complexity and further need for exploration of the translational application of myostatin inhibition in humans.
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Affiliation(s)
- Catherine L Omosule
- Department of Biochemistry, University of Missouri, Columbia, MO, United States
| | - Charlotte L Phillips
- Department of Biochemistry, University of Missouri, Columbia, MO, United States.,Department of Child Health, University of Missouri, Columbia, MO, United States
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3
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Liang X, Dou X, Tian L, Li Q. A Renewed Focus on GDF11 Level Fluctuation in Human Serum in Relation to Physical Examination Indicators. J Gerontol A Biol Sci Med Sci 2021; 75:1095-1102. [PMID: 31120107 DOI: 10.1093/gerona/glz129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Indexed: 01/07/2023] Open
Abstract
Growth and differentiation factor 11 (GDF11) is a member of the transforming growth factor β superfamily. Previous studies have shown that GDF11 decreases with age and has antiaging effects; however, such reports are controversial. We choose 152 subjects covering a large age range (2 hours to 75 years) to measure serum GDF11. Twenty-two hematological variables and 13 biochemical values were measured. Pearson's analysis found a significant correlation between GDF11 and age (p = .0000, r = .4898), as well as serum creatinine, uric acid, triglycerides, red blood cell count, hemoglobin, hematocrit, and platelet volume distribution width. GDF11 negatively correlated with aspartate transaminase, white blood cell count, platelet count, lymphocyte count, monocyte count, mean platelet volume, and plateletcrit. Interestingly, we found GDF11 increases in people aged 20-30 years, holds steady in people aged 30-50 years, and increases in people older than 50 years. The results suggest that GDF11 serves different roles along the life span. The current actual evidence supports that GDF11 is helpful to promote aging.
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Affiliation(s)
- Xiaolin Liang
- Light Industry and Food Engineering College, Guangxi University, Nanning, China
| | - Xiaowei Dou
- Harvard Medical School, VA Medical Center, West Roxbury, Massachusetts
| | - Long Tian
- The Maternal and Child Health-Care Hospital of Qinzhou City, China
| | - Quanyang Li
- Light Industry and Food Engineering College, Guangxi University, Nanning, China
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4
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Simoni-Nieves A, Gerardo-Ramírez M, Pedraza-Vázquez G, Chávez-Rodríguez L, Bucio L, Souza V, Miranda-Labra RU, Gomez-Quiroz LE, Gutiérrez-Ruiz MC. GDF11 Implications in Cancer Biology and Metabolism. Facts and Controversies. Front Oncol 2019; 9:1039. [PMID: 31681577 PMCID: PMC6803553 DOI: 10.3389/fonc.2019.01039] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Accepted: 09/24/2019] [Indexed: 01/06/2023] Open
Abstract
Growth Differentiation Factor 11 (GDF11), a member of the super family of the Transforming Growth Factor β, has gained more attention in the last few years due to numerous reports regarding its functions in other systems, which are different to those related to differentiation and embryonic development, such as age-related muscle dysfunction, skin biology, metabolism, and cancer. GDF11 is expressed in many tissues, including skeletal muscle, pancreas, kidney, nervous system, and retina, among others. GDF11 circulating levels and protein content in tissues are quite variable and are affected by pathological conditions or age. Although, GDF11 biology had a lot of controversies, must of them are only misunderstandings regarding the variability of its responses, which are independent of the tissue, grade of cellular differentiation or pathologies. A blunt fact regarding GDF11 biology is that its target cells have stemness feature, a property that could be found in certain adult cells in health and in disease, such as cancer cells. This review is focused to present and analyze the recent findings in the emerging research field of GDF11 function in cancer and metabolism, and discusses the controversies surrounding the biology of this atypical growth factor.
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Affiliation(s)
- Arturo Simoni-Nieves
- Posgrado en Biología Experimental, DCBS, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City, Mexico.,Laboratorio de Fisiología Celular y Biología Molecular, Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City, Mexico
| | - Monserrat Gerardo-Ramírez
- Posgrado en Biología Experimental, DCBS, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City, Mexico.,Laboratorio de Fisiología Celular y Biología Molecular, Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City, Mexico
| | - Gibrán Pedraza-Vázquez
- Posgrado en Biología Experimental, DCBS, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City, Mexico.,Laboratorio de Fisiología Celular y Biología Molecular, Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City, Mexico
| | - Lisette Chávez-Rodríguez
- Posgrado en Biología Experimental, DCBS, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City, Mexico.,Laboratorio de Fisiología Celular y Biología Molecular, Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City, Mexico
| | - Leticia Bucio
- Laboratorio de Fisiología Celular y Biología Molecular, Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City, Mexico.,Laboratorio de Medicina Experimental, Unidad de Medicina Translacional, Instituto de Investigaciones Biomédicas, UNAM/Instituto Nacional de Cardiología Ignacio Chavez, Mexico City, Mexico
| | - Verónica Souza
- Laboratorio de Fisiología Celular y Biología Molecular, Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City, Mexico.,Laboratorio de Medicina Experimental, Unidad de Medicina Translacional, Instituto de Investigaciones Biomédicas, UNAM/Instituto Nacional de Cardiología Ignacio Chavez, Mexico City, Mexico
| | - Roxana U Miranda-Labra
- Laboratorio de Fisiología Celular y Biología Molecular, Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City, Mexico.,Laboratorio de Medicina Experimental, Unidad de Medicina Translacional, Instituto de Investigaciones Biomédicas, UNAM/Instituto Nacional de Cardiología Ignacio Chavez, Mexico City, Mexico
| | - Luis E Gomez-Quiroz
- Laboratorio de Fisiología Celular y Biología Molecular, Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City, Mexico.,Laboratorio de Medicina Experimental, Unidad de Medicina Translacional, Instituto de Investigaciones Biomédicas, UNAM/Instituto Nacional de Cardiología Ignacio Chavez, Mexico City, Mexico
| | - María Concepción Gutiérrez-Ruiz
- Laboratorio de Fisiología Celular y Biología Molecular, Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City, Mexico.,Laboratorio de Medicina Experimental, Unidad de Medicina Translacional, Instituto de Investigaciones Biomédicas, UNAM/Instituto Nacional de Cardiología Ignacio Chavez, Mexico City, Mexico
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5
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Abstract
In addition to its roles in embryonic development, Growth and Differentiation Factor 11 (GDF 11) has recently drawn much interest about its roles in other processes, such as aging. GDF 11 has been shown to play pivotal roles in the rescue of the proliferative and regenerative capabilities of skeletal muscle, neural stem cells and cardiomyocytes. We would be remiss not to point that some controversy exists regarding the role of GDF 11 in biological processes and whether it will serve as a therapeutic agent. The latest studies have shown that the level of circulating GDF 11 correlates with the outcomes of patients with cardiovascular diseases, cancer and uremia. Based on these studies, GDF 11 is a promising candidate to serve as a novel biomarker of diseases. This brief review gives a detailed and concise view of the regulation and functions of GDF 11 and its roles in development, neurogenesis and erythropoiesis as well as the prospect of using this protein as an indicator of cardiac health and aging.
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Affiliation(s)
- A Jamaiyar
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH, USA; School of Biomedical Sciences, Kent State University, Kent, OH, USA
| | - W Wan
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH, USA; Department of Cardiology, Renmin Hospital of Wuhan University, Hubei, China
| | - D M Janota
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH, USA
| | - M K Enrick
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH, USA
| | - W M Chilian
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH, USA
| | - L Yin
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH, USA.
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Gaunt SJ, George M, Paul YL. Direct activation of a mouse Hoxd11 axial expression enhancer by Gdf11/Smad signalling. Dev Biol 2013; 383:52-60. [PMID: 24016758 DOI: 10.1016/j.ydbio.2013.08.025] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 08/28/2013] [Accepted: 08/29/2013] [Indexed: 12/19/2022]
Abstract
A Hoxd11/lacZ reporter, expressed with a Hoxd11-like axial expression pattern in transgenic mouse embryos, is stimulated in tailbud fragments when cultured in presence of Gdf11, a TGF-β growth/differentiation factor. The same construct is also stimulated by Gdf11 when transiently transfected into cultures of HepG2 cells. Stimulation of the reporter in HepG2 cells is enhanced where it contains only the 332 bp Hoxd11 enhancer region VIII upstream or downstream of a luciferase or lacZ reporter. This enhancer contains three elements conserved from fish to mice, one of which has the sequence of a Smad3/4 binding element. Mutation of this motif inhibits the ability of Gdf11 to enhance reporter activity in the HepG2 cell assay. Chromatin immunoprecipitation experiments show direct evidence of Smad2/3 protein binding to the Hoxd11 region VIII enhancer. The action of Gdf11 upon Hoxd11 in HepG2 cells is inhibited, at least in part, by SIS3, a specific inhibitor of Smad3. SIS3 also produces partial inhibition of Hoxd11/lacZ expression in cultured transgenic tailbuds, indicating that Smad3 may play a similar role in the embryonic expression of Hoxd11. Transgenic mouse experiments show that the Smad binding motif is essential for the axial expression of Hoxd11/lacZ reporter in the embryo tailbud, posterior mesoderm and neurectoderm.
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Affiliation(s)
- Stephen J Gaunt
- Laboratory for Development and Evolution, Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK; The Babraham Institute, Babraham, Cambridge CB22 3AT, UK.
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7
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Rigaud M, Gemes G, Barabas ME, Chernoff DI, Abram SE, Stucky CL, Hogan QH. Species and strain differences in rodent sciatic nerve anatomy: implications for studies of neuropathic pain. Pain 2008; 136:188-201. [PMID: 18316160 DOI: 10.1016/j.pain.2008.01.016] [Citation(s) in RCA: 199] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2007] [Revised: 01/07/2008] [Accepted: 01/17/2008] [Indexed: 10/22/2022]
Abstract
Hindlimb pain models developed in rats have been transposed to mice, but assumed sciatic nerve neuroanatomic similarities have not been examined. We compared sciatic nerve structural organization in mouse strains (C57BL/6J, DBA/2J, and B6129PF2/J) and rat strains (Wistar, Brown Norway, and Sprague-Dawley). Dissection and retrograde labeling showed mouse sciatic nerve origins predominantly from the third lumbar (L3) and L4 spinal nerves, unlike the L4 and L5 in rats. Proportionate contributions by each level differed significantly between strains in both mice and rats. Whereas all rats had six lumbar vertebrae, variable patterns in mice included mostly five vertebrae in DBA/2J, mostly six vertebrae in C57BL/6J, and a mix in B6129PF2/J. Mice with a short lumbar vertebral column showed a rostral shift in relative contributions to the sciatic nerve by L3 and L4. Ligation of the mouse L4 nerve created hyperalgesia similar to that in rats after L5 ligation, and motor changes were similar after mouse L4 and rat L5 ligation (foot cupping) and after mouse L3 and rat L4 ligation (flexion weakness). Thus, mouse L3 and L4 neural segments are anatomically and functionally homologous with rat L4 and L5 segments. Neuronal changes after distal injury or inflammation should be sought in the mouse L3 and L4 ganglia, and the spinal nerve ligation model in mice should involve ligation of the L4 nerve while L3 remains intact. Strain-dependent variability in segmental contributions to the sciatic nerve may account in part for genetic differences in pain behavior after spinal nerve ligation.
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Affiliation(s)
- Marcel Rigaud
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, WI 53226, United States
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8
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Handrigan GR, Wassersug RJ. The anuran Bauplan: a review of the adaptive, developmental, and genetic underpinnings of frog and tadpole morphology. Biol Rev Camb Philos Soc 2007; 82:1-25. [PMID: 17313522 DOI: 10.1111/j.1469-185x.2006.00001.x] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Anurans (frogs, toads, and their larvae) are among the most morphologically derived of vertebrates. While tightly conserved across the order, the anuran Bauplan (body plan) diverges widely from that of other vertebrates, particularly with respect to the skeleton. Here we address the adaptive, ontogenetic, and genetic bases of three such hallmark anuran features: (1) the absence of discrete caudal vertebrae, (2) a truncated axial skeleton, and (3) elongate hind limbs. We review the functional significance of each as it relates to the anuran lifestyle, which includes locomotor adaptations to both aquatic and terrestrial environments. We then shift our focus to the proximal origins of each feature, namely, ontogeny and its molecular regulation. Drawing on relatively limited data, we detail the development of each character and then, by extrapolating from comparative vertebrate data, propose molecular bases for these processes. Cast in this light, the divergent morphology of anurans emerges as a product of evolutionary modulation of the generalised vertebrate developmental machinery. Specifically, we hypothesise that: (1) the formation of caudal vertebrae is precluded due to a failure of sclerotomes to form cartilaginous condensations, perhaps resulting from altered expression of a suite of genes, including Pax1, Pax9, Msx1, Uncx-4.1, Sonic hedgehog, and noggin; (2) anteriorised Hox gene expression in the paraxial mesoderm has led to a rostral shift of morphological boundaries of the vertebral column; and, (3) spatial and temporal shifts in Hox expression may underlie the expanded tarsal elements of the anuran hind limb. Technology is currently in place to investigate each of these scenarios in the African clawed frog Xenopus. Experimental corroboration will further our understanding of the molecular regulation of the anuran Bauplan and provide insight into the origin of vertebrate morphological diversity as well as the role of development in evolution.
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Affiliation(s)
- Gregory R Handrigan
- Department of Biology, Dalhousie University 1355 Oxford Street, Halifax, Nova Scotia, Canada B3H 4J1.
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Andersson O, Reissmann E, Ibáñez CF. Growth differentiation factor 11 signals through the transforming growth factor-beta receptor ALK5 to regionalize the anterior-posterior axis. EMBO Rep 2006; 7:831-7. [PMID: 16845371 PMCID: PMC1525155 DOI: 10.1038/sj.embor.7400752] [Citation(s) in RCA: 111] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2006] [Revised: 06/16/2006] [Accepted: 06/16/2006] [Indexed: 11/08/2022] Open
Abstract
Growth differentiation factor 11 (GDF11) contributes to regionalize the mouse embryo along its anterior-posterior axis by regulating the expression of Hox genes. The identity of the receptors that mediate GDF11 signalling during embryogenesis remains unclear. Here, we show that GDF11 can interact with type I receptors ALK4, ALK5 and ALK7, but predominantly uses ALK4 and ALK5 to activate a Smad3-dependent reporter gene. Alk5 mutant embryos showed malformations in anterior-posterior patterning, including the lack of expression of the posterior determinant Hoxc10, that resemble defects found in Gdf11-null mutants. A heterozygous mutation in Alk5, but not in Alk4 or Alk7, potentiated Gdf11(-/-)-like phenotypes in vertebral, kidney and palate development in an Acvr2b(-/-) background, indicating a genetic interaction between the two receptor genes. Thus, the transforming growth factor-beta (TGF-beta) receptor ALK5, which until now has only been associated with the biological functions of TGF-beta1 to TGF-beta3 proteins, mediates GDF11 signalling during embryogenesis.
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Affiliation(s)
- Olov Andersson
- Department of Neuroscience, Division of Molecular Neurobiology, Karolinska Institutet, Berzelius väg 35, Box 285, 17177 Stockholm, Sweden
| | - Eva Reissmann
- Department of Neuroscience, Division of Molecular Neurobiology, Karolinska Institutet, Berzelius väg 35, Box 285, 17177 Stockholm, Sweden
| | - Carlos F Ibáñez
- Department of Neuroscience, Division of Molecular Neurobiology, Karolinska Institutet, Berzelius väg 35, Box 285, 17177 Stockholm, Sweden
- Tel: +46 8 5248 7660; Fax: +46 8 33 9548; E-mail:
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Oh SP, Yeo CY, Lee Y, Schrewe H, Whitman M, Li E. Activin type IIA and IIB receptors mediate Gdf11 signaling in axial vertebral patterning. Genes Dev 2002; 16:2749-54. [PMID: 12414726 PMCID: PMC187472 DOI: 10.1101/gad.1021802] [Citation(s) in RCA: 161] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Vertebral bodies are segmented along the anteroposterior (AP) body axis, and the segmental identity of the vertebrae is determined by the unique expression pattern of multiple Hox genes. Recent studies have demonstrated that a transforming growth factor beta (TGF-beta) family protein, Gdf11 (growth and differentiation factor 11), and the activin type II receptor, ActRIIB, are involved in controlling the spatiotemporal expression of multiple Hox genes along the AP axis, and that the disruption of each of these genes causes anterior transformation of the vertebrae. Skeletal defects are more severe in Gdf11-null mice than in ActRIIB-null mice, however, leaving it uncertain whether Gdf11 signals via ActRIIB. Here we demonstrate using genetic and biochemical studies that ActRIIB and its subfamily receptor, ActRIIA, cooperatively mediate the Gdf11 signal in patterning the axial vertebrae, and that Gdf11 binds to both ActRIIA and ActRIIB, and induces phosphorylation of Smad2. In addition, we also show that these two receptors can functionally compensate for one another to mediate signaling of another TGF-beta ligand, nodal, during left-right patterning and the development of anterior head structure.
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Affiliation(s)
- S Paul Oh
- Department of Physiology and Functional Genomics, University of Florida College of Medicine, Gainesville, Florida 32610, USA.
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