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Gude MF, Hjortebjerg R, Bjerre M, Pedersen AKN, Oxvig C, Rasmussen LM, Frystyk J, Steffensen L. The pro-atherogenic enzyme PAPP-A is active in eluates from human carotid and femoral atherosclerotic plaques. ATHEROSCLEROSIS PLUS 2024; 57:30-36. [PMID: 39308741 PMCID: PMC11415872 DOI: 10.1016/j.athplu.2024.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 08/20/2024] [Accepted: 09/03/2024] [Indexed: 09/25/2024]
Abstract
Background Pregnancy-associated plasma protein-A (PAPP-A) regulates bioavailability of insulin-like growth factor 1 (IGF1) in various tissues by proteolytic cleavage of a subset of IGF-binding proteins (IGFBPs). Pre-clinical studies have established a role of PAPP-A in atherosclerosis and proposed that targeting the proteolytic activity of PAPP-A has therapeutic value.This study aimed to investigate whether human atherosclerotic plaques contain proteolytically active PAPP-A, a prerequisite for further considering PAPP-A as a therapeutic target in patients. Methods We obtained carotid (n = 9) and femoral (n = 11) atherosclerotic plaques from patients undergoing vascular surgery and incubated freshly harvested plaque tissue in culture media for 24 h. Subsequently, conditioned media were assayed for PAPP-A, STC2, IGFBP4, and IGF1 using immunoassays. Enzymatic activity of PAPP-A was assessed by its ability to process recombinant IGFBP4-IGF1 complexes - a specific substrate of PAPP-A - by Western blotting. Results PAPP-A and STC2 were detectable in conditioned media from both carotid and femoral plaques, with higher STC2 concentrations in eluates from carotid plaque incubations (p = 0.02). IGFBP4 and IGF1 were undetectable. Conditioned media from all 20 plaques exhibited PAPP-A proteolytic activity. However, no correlation between PAPP-A concentration and its proteolytic activity was observed, whereas the PAPP-A: STC2 molar ratio correlated with PAPP-A activity (R2 = 0.25, p = 0.03). Conclusion This study provides evidence for the presence of enzymatically active PAPP-A in atherosclerotic plaques and underscores the need for further investigating potential beneficial effects associated with targeting PAPP-A in atherosclerotic cardiovascular disease.
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Affiliation(s)
- Mette Faurholdt Gude
- Medical/Steno Aarhus Research Laboratory, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Rikke Hjortebjerg
- Endocrine Research Unit, Department of Endocrinology, Odense University Hospital, Odense, Denmark
- Department of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark
- Steno Diabetes Center Odense, Odense University Hospital, Odense, Denmark
| | - Mette Bjerre
- Medical/Steno Aarhus Research Laboratory, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | | | - Claus Oxvig
- Dept. of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
| | - Lars Melholt Rasmussen
- Centre for Individualized Medicine in Arterial Diseases (CIMA), Odense University Hospital, Odense, Denmark
- Dept. of Clinical Biochemistry, Odense University Hospital, Odense, Denmark
| | - Jan Frystyk
- Endocrine Research Unit, Department of Endocrinology, Odense University Hospital, Odense, Denmark
- Department of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark
| | - Lasse Steffensen
- Dept. of Molecular Medicine, University of Southern Denmark, Odense, Denmark
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Harboe M, Kjaer-Sorensen K, Füchtbauer EM, Fenton RA, Thomsen JS, Brüel A, Oxvig C. The metalloproteinase PAPP-A is required for IGF-dependent chondrocyte differentiation and organization. Sci Rep 2024; 14:20161. [PMID: 39215168 PMCID: PMC11364822 DOI: 10.1038/s41598-024-71062-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2024] [Accepted: 08/23/2024] [Indexed: 09/04/2024] Open
Abstract
Insulin-like growth factor (IGF) signaling is required for proper growth and skeletal development in vertebrates. Consequently, its dysregulation may lead to abnormalities of growth or skeletal structures. IGF is involved in the regulation of cell proliferation and differentiation of chondrocytes. However, the availability of bioactive IGF may be controlled by antagonizing IGF binding proteins (IGFBPs) in the circulation and tissues. As the metalloproteinase PAPP-A specifically cleaves members of the IGFBP family, we hypothesized that PAPP-A activity liberates bioactive IGF in cartilage. In PAPP-A knockout mice, the femur length was reduced and the mice showed a disorganized columnar organization of growth plate chondrocytes. Similarly, zebrafish lacking pappaa showed reduced length of Meckel's cartilage and disorganized chondrocytes, reminiscent of the mouse knockout phenotype. Expression of chondrocyte differentiation markers (sox9a, ihha, and col10a1) was markedly affected in Meckel's cartilage of pappaa knockout zebrafish, indicating that differentiation of chondrocytes was compromised. Additionally, the zebrafish pappaa knockout phenotype was mimicked by pharmacological inhibition of IGF signaling, and it could be rescued by treatment with exogenous recombinant IGF-I. In conclusion, our data suggests that IGF activity in the growing cartilage, and hence IGF signaling in chondrocytes, requires the presence of PAPP-A. The absence of PAPP-A causes aberrant chondrocyte organization and compromised growth in both mice and zebrafish.
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Affiliation(s)
- Mette Harboe
- Department of Molecular Biology and Genetics, Aarhus University, Universitetsbyen 81, 8000, Aarhus C, Denmark
| | - Kasper Kjaer-Sorensen
- Department of Molecular Biology and Genetics, Aarhus University, Universitetsbyen 81, 8000, Aarhus C, Denmark
| | - Ernst-Martin Füchtbauer
- Department of Molecular Biology and Genetics, Aarhus University, Universitetsbyen 81, 8000, Aarhus C, Denmark
| | - Robert A Fenton
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | | | - Annemarie Brüel
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Claus Oxvig
- Department of Molecular Biology and Genetics, Aarhus University, Universitetsbyen 81, 8000, Aarhus C, Denmark.
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Khatun M, Modhukur V, Piltonen TT, Tapanainen JS, Salumets A. Stanniocalcin Protein Expression in Female Reproductive Organs: Literature Review and Public Cancer Database Analysis. Endocrinology 2024; 165:bqae110. [PMID: 39186548 PMCID: PMC11398916 DOI: 10.1210/endocr/bqae110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 08/05/2024] [Accepted: 08/24/2024] [Indexed: 08/28/2024]
Abstract
Stanniocalcin (STC) 1 and 2 serve as antihyperglycemic polypeptide hormones with critical roles in regulating calcium and phosphate homeostasis. They additionally function as paracrine and/or autocrine factors involved in numerous physiological processes, including female reproduction. STC1 and STC2 contribute to the pathophysiology of several diseases, including female infertility- and pregnancy-associated conditions, and even tumorigenesis of reproductive organs. This comprehensive review highlights the dynamic expression patterns and potential dysregulation of STC1 and STC2, restricted to female fertility, and infertility- and pregnancy-associated diseases and conditions, such as endometriosis, polycystic ovary syndrome (PCOS), abnormal uterine bleeding, uterine polyps, and pregnancy complications, like impaired decidualization, preeclampsia, and preterm labor. Furthermore, the review elucidates the role of dysregulated STC in the progression of cancers of the reproductive system, including endometrial, cervical, and ovarian cancers. Additionally, the review evaluates the expression patterns and prognostic significance of STC in gynecological cancers by utilizing existing public datasets from The Cancer Genome Atlas to help decipher the multifaceted roles of these pleiotropic hormones in disease progression. Understanding the intricate mechanisms by which STC proteins influence all these reviewed conditions could lead to the development of targeted diagnostic and therapeutic strategies in the context of female reproductive health and oncology.
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Affiliation(s)
- Masuma Khatun
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Haartmaninkatu 8, 00290 Helsinki, Finland
| | - Vijayachitra Modhukur
- Department of Obstetrics and Gynecology, Institute of Clinical Medicine, University of Tartu, 50406 Tartu, Estonia
- Competence Centre on Health Technologies, 50411 Tartu, Estonia
| | - Terhi T Piltonen
- Department of Obstetrics and Gynecology, Research Unit of Clinical Medicine, Medical Research Center, Oulu University Hospital, University of Oulu, 90220 Oulu, Finland
| | - Juha S Tapanainen
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Haartmaninkatu 8, 00290 Helsinki, Finland
- Department of Obstetrics and Gynaecology, HFR-Cantonal Hospital of Fribourg and University of Fribourg, 79085 Fribourg, Switzerland
| | - Andres Salumets
- Department of Obstetrics and Gynecology, Institute of Clinical Medicine, University of Tartu, 50406 Tartu, Estonia
- Competence Centre on Health Technologies, 50411 Tartu, Estonia
- Division of Obstetrics and Gynecology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet and Karolinska University Hospital, 14152 Huddinge, Stockholm, Sweden
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Barrios V, Martín-Rivada Á, Martos-Moreno GÁ, Canelles S, Moreno-Macián F, De Mingo-Alemany C, Delvecchio M, Pajno R, Fintini D, Chowen JA, Argente J. Increased IGFBP Proteolysis, IGF-I Bioavailability, and Pappalysin Levels in Children With Prader-Willi Syndrome. J Clin Endocrinol Metab 2024; 109:e1776-e1786. [PMID: 38141219 DOI: 10.1210/clinem/dgad754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 12/18/2023] [Accepted: 12/21/2023] [Indexed: 12/25/2023]
Abstract
CONTEXT Prader-Willi syndrome (PWS) is associated with impaired growth hormone (GH) secretion and decreased insulin-like growth factor (IGF)-I levels. Pappalysins (PAPP-A, PAPP-A2) and stanniocalcins (STC-1, STC-2) regulate IGF binding-protein (IGFBP) cleavage and IGF bioavailability, but their implication in PWS is unknown. OBJECTIVE We determined serum levels of PAPP-As and STCs in association with IGF axis components in prepubertal and pubertal patients with PWS, also analyzing the effect of GH treatment. METHODS Forty children and adolescents with PWS and 120 sex- and age-matched controls were included. The effect of GH was evaluated at 6 months of treatment in 11 children. RESULTS Children with PWS had lower levels of total IGF-I, total and intact IGFBP-3, acid-labile subunit, intact IGFBP-4, and STC-1, and they had higher concentrations of free IGF-I, IGFBP-5, and PAPP-A. Patients with PWS after pubertal onset had decreased total IGF-I, total and intact IGFBP-3, and intact IGFBP-4 levels, and had increased total IGFBP-4, and STCs concentrations. GH treatment increased total IGF-I, total and intact IGFBP-3, and intact IGFBP-4, with no changes in PAPP-As, STCs, and free IGF-I levels. Standardized height correlated directly with intact IGFBP-3 and inversely with PAPP-As and the free/total IGF-I ratio. CONCLUSION The increase in PAPP-A could be involved in increased IGFBP proteolysis, promoting IGF-I bioavailability in children with PWS. Further studies are needed to establish the relationship between growth, GH resistance, and changes in the IGF axis during development and after GH treatment in these patients.
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Affiliation(s)
- Vicente Barrios
- Departments of Pediatrics & Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Research Institute "La Princesa", Madrid 28009, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutriciόn (CIBEROBN), Instituto de Salud Carlos III, Madrid 28029, Spain
| | - Álvaro Martín-Rivada
- Departments of Pediatrics & Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Research Institute "La Princesa", Madrid 28009, Spain
| | - Gabriel Á Martos-Moreno
- Departments of Pediatrics & Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Research Institute "La Princesa", Madrid 28009, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutriciόn (CIBEROBN), Instituto de Salud Carlos III, Madrid 28029, Spain
- Department of Pediatrics, Universidad Autónoma de Madrid, Madrid 28029, Spain
| | - Sandra Canelles
- Departments of Pediatrics & Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Research Institute "La Princesa", Madrid 28009, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutriciόn (CIBEROBN), Instituto de Salud Carlos III, Madrid 28029, Spain
| | - Francisca Moreno-Macián
- Pediatric Endocrinology Unit, Hospital Universitario y Politécnico La Fe, Valencia 46009, Spain
| | - Carmen De Mingo-Alemany
- Pediatric Endocrinology Unit, Hospital Universitario y Politécnico La Fe, Valencia 46009, Spain
| | - Maurizio Delvecchio
- Department of Biotechnology and Applied Sciences, University of L'Aquila, Aquila 67100, Italy
| | - Roberta Pajno
- Department of Pediatrics, Endocrine Unit, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Danilo Fintini
- Ospedale Pediatrico Bambino Gesù, Prader-Willi Reference Center, Endocrinology and Diabetology Unit, IRCCS, Rome 00165, Italy
| | - Julie A Chowen
- Departments of Pediatrics & Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Research Institute "La Princesa", Madrid 28009, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutriciόn (CIBEROBN), Instituto de Salud Carlos III, Madrid 28029, Spain
- IMDEA, Food Institute, CEIUAM+CSI, Cantoblanco, Madrid 28049, Spain
| | - Jesús Argente
- Departments of Pediatrics & Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Research Institute "La Princesa", Madrid 28009, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutriciόn (CIBEROBN), Instituto de Salud Carlos III, Madrid 28029, Spain
- Department of Pediatrics, Universidad Autónoma de Madrid, Madrid 28029, Spain
- IMDEA, Food Institute, CEIUAM+CSI, Cantoblanco, Madrid 28049, Spain
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Mancarella C, Morrione A, Scotlandi K. Extracellular Interactors of the IGF System: Impact on Cancer Hallmarks and Therapeutic Approaches. Int J Mol Sci 2024; 25:5915. [PMID: 38892104 PMCID: PMC11172729 DOI: 10.3390/ijms25115915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 05/24/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024] Open
Abstract
Dysregulation of the insulin-like growth factor (IGF) system determines the onset of various pathological conditions, including cancer. Accordingly, therapeutic strategies have been developed to block this system in tumor cells, but the results of clinical trials have been disappointing. After decades of research in the field, it is safe to say that one of the major reasons underlying the poor efficacy of anti-IGF-targeting agents is derived from an underestimation of the molecular complexity of this axis. Genetic, transcriptional, post-transcriptional and functional interactors interfere with the activity of canonical components of this axis, supporting the need for combinatorial approaches to effectively block this system. In addition, cancer cells interface with a multiplicity of factors from the extracellular compartment, which strongly affect cell destiny. In this review, we will cover novel extracellular mechanisms contributing to IGF system dysregulation and the implications of such dangerous liaisons for cancer hallmarks and responses to known and new anti-IGF drugs. A deeper understanding of both the intracellular and extracellular microenvironments might provide new impetus to better decipher the complexity of the IGF axis in cancer and provide new clues for designing novel therapeutic approaches.
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Affiliation(s)
- Caterina Mancarella
- Laboratory of Experimental Oncology, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
| | - Andrea Morrione
- Sbarro Institute for Cancer Research and Molecular Medicine and Center for Biotechnology, Department of Biology, College of Science and Technology, Temple University, Philadelphia, PA 19122, USA;
| | - Katia Scotlandi
- Laboratory of Experimental Oncology, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
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Güemes M, Martín-Rivada Á, Corredor B, Enes P, Canelles S, Barrios V, Argente J. Implication of Pappalysins and Stanniocalcins in the Bioavailability of IGF-I in Children With Type 1 Diabetes Mellitus. J Endocr Soc 2024; 8:bvae081. [PMID: 38712328 PMCID: PMC11071684 DOI: 10.1210/jendso/bvae081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Indexed: 05/08/2024] Open
Abstract
Context Anomalies in the growth hormone (GH)/insulin-like growth factor (IGF) axis, are common in children with type 1 diabetes mellitus (T1DM), even in those reaching a normal or near-normal final height. However, concentrations of the IGF bioavailability regulatory factors (pappalysins [PAPP-As] and stanniocalcins [STCs]) have not been reported in children with T1DM. Objective To determine serum concentrations of PAPP-As and STCs in children at diagnosis of T1DM and after insulin treatment and the correlation of these factors with other members of the GH/IGF axis, beta-cell insulin reserve, auxology, and nutritional status. Methods A single-center prospective observational study including 47 patients (59.5% male), with T1DM onset at median age of 9.2 years (interquartile range: 6.3, 11.9) was performed. Blood and anthropometric data were collected at diagnosis and after 6 and 12 months of treatment. Results At 6 and 12 months after T1DM diagnosis, there was improvement in the metabolic control (decrease in glycated hemoglobin [HbA1c] at 12 months -3.66 [95% CI: -4.81, -2.05], P = .001), as well as in body mass index SD and height SD (not statistically significant). STC2 increased (P < .001) and PAPP-A2 decreased (P < .001) at 6 and 12 months of treatment onset (P < .001), which was concurrent with increased total IGF-I and IGF-binding protein concentrations, with no significant modification in free IGF-I concentrations. HbA1c correlated with PAPP-A2 (r = +0.41; P < .05) and STC2 (r = -0.32; P < .05). Conclusion Implementation of insulin treatment after T1DM onset modifies various components of the circulating IGF system, including PAPP-A2 and STC2. How these modifications modulate linear growth remains unknown.
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Affiliation(s)
- María Güemes
- Department of Pediatrics & Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Research Institute La Princesa, 28009 Madrid, Spain
| | - Álvaro Martín-Rivada
- Department of Pediatrics & Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Research Institute La Princesa, 28009 Madrid, Spain
| | - Beatriz Corredor
- Department of Pediatrics & Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Research Institute La Princesa, 28009 Madrid, Spain
| | - Patricia Enes
- Department of Pediatrics & Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Research Institute La Princesa, 28009 Madrid, Spain
| | - Sandra Canelles
- Department of Pediatrics & Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Research Institute La Princesa, 28009 Madrid, Spain
| | - Vicente Barrios
- Department of Pediatrics & Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Research Institute La Princesa, 28009 Madrid, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutriciόn (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Jesús Argente
- Department of Pediatrics & Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Research Institute La Princesa, 28009 Madrid, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutriciόn (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Department of Pediatrics, Universidad Autónoma de Madrid, 28029 Madrid, Spain
- IMDEA, Food Institute, CEIUAM+CSI, 28049 Madrid, Spain
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Patel A, Dewani D, Jaiswal A, Reddy LS, Yadav P, Sethi N. Unveiling the Role of Pregnancy-Associated Plasma Protein A (PAPP-A) in Pregnancy-Associated Breast Cancer: A Comprehensive Review. Cureus 2024; 16:e56269. [PMID: 38623138 PMCID: PMC11017795 DOI: 10.7759/cureus.56269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 03/16/2024] [Indexed: 04/17/2024] Open
Abstract
Pregnancy-associated breast cancer (PABC) presents unique challenges due to its occurrence during or shortly after pregnancy. Pregnancy-associated plasma protein A (PAPP-A) has emerged as a potential biomarker and regulator in PABC. This comprehensive review examines the role of PAPP-A in PABC, highlighting its involvement in tissue remodeling and cancer progression. Molecular mechanisms linking PAPP-A to breast cancer, including signaling pathways and interactions with other molecules, are explored. The review also discusses the diagnostic and therapeutic implications of PAPP-A dysregulation in PABC, emphasizing the need for further research to elucidate underlying mechanisms and develop targeted therapies. Collaborative efforts among researchers, clinicians, and industry stakeholders are essential for translating findings into clinically relevant interventions to improve outcomes for PABC patients.
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Affiliation(s)
- Archan Patel
- Obstetrics and Gynecology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Deepika Dewani
- Obstetrics and Gynecology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Arpita Jaiswal
- Obstetrics and Gynecology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Lucky Srivani Reddy
- Obstetrics and Gynecology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Pallavi Yadav
- Obstetrics and Gynecology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Neha Sethi
- Obstetrics and Gynecology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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Poddar A, Ahmady F, Rao SR, Sharma R, Kannourakis G, Prithviraj P, Jayachandran A. The role of pregnancy associated plasma protein-A in triple negative breast cancer: a promising target for achieving clinical benefits. J Biomed Sci 2024; 31:23. [PMID: 38395880 PMCID: PMC10885503 DOI: 10.1186/s12929-024-01012-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 02/10/2024] [Indexed: 02/25/2024] Open
Abstract
Pregnancy associated plasma protein-A (PAPP-A) plays an integral role in breast cancer (BC), especially triple negative breast cancer (TNBC). This subtype accounts for the most aggressive BC, possesses high tumor heterogeneity, is least responsive to standard treatments and has the poorest clinical outcomes. There is a critical need to address the lack of effective targeted therapeutic options available. PAPP-A is a protein that is highly elevated during pregnancy. Frequently, higher PAPP-A expression is detected in tumors than in healthy tissues. The increase in expression coincides with increased rates of aggressive cancers. In BC, PAPP-A has been demonstrated to play a role in tumor initiation, progression, metastasis including epithelial-mesenchymal transition (EMT), as well as acting as a biomarker for predicting patient outcomes. In this review, we present the role of PAPP-A, with specific focus on TNBC. The structure and function of PAPP-A, belonging to the pappalysin subfamily, and its proteolytic activity are assessed. We highlight the link of BC and PAPP-A with respect to the IGFBP/IGF axis, EMT, the window of susceptibility and the impact of pregnancy. Importantly, the relevance of PAPP-A as a TNBC clinical marker is reviewed and its influence on immune-related pathways are explored. The relationship and mechanisms involving PAPP-A reveal the potential for more treatment options that can lead to successful immunotherapeutic targets and the ability to assist with better predicting clinical outcomes in TNBC.
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Affiliation(s)
- Arpita Poddar
- Fiona Elsey Cancer Research Institute, Victoria, Australia
- Federation University, Victoria, Australia
- RMIT University, Victoria, Australia
| | - Farah Ahmady
- Fiona Elsey Cancer Research Institute, Victoria, Australia
- Federation University, Victoria, Australia
| | - Sushma R Rao
- Fiona Elsey Cancer Research Institute, Victoria, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Revati Sharma
- Fiona Elsey Cancer Research Institute, Victoria, Australia
- Federation University, Victoria, Australia
| | - George Kannourakis
- Fiona Elsey Cancer Research Institute, Victoria, Australia
- Federation University, Victoria, Australia
| | - Prashanth Prithviraj
- Fiona Elsey Cancer Research Institute, Victoria, Australia
- Federation University, Victoria, Australia
| | - Aparna Jayachandran
- Fiona Elsey Cancer Research Institute, Victoria, Australia.
- Federation University, Victoria, Australia.
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Barrios V, Martín-Rivada Á, Guerra-Cantera S, Campillo-Calatayud A, Camarneiro RA, Graell M, Chowen JA, Argente J. Reduction in Pappalysin-2 Levels and Lower IGF-I Bioavailability in Female Adolescents With Anorexia Nervosa. J Clin Endocrinol Metab 2024; 109:e920-e931. [PMID: 38066647 DOI: 10.1210/clinem/dgad713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Indexed: 02/21/2024]
Abstract
CONTEXT Anorexia nervosa (AN) can cause severe undernutrition associated with alterations in the IGF axis. Pappalysins (PAPP-A, PAPP-A2) and stanniocalcins (STC-1, STC-2) modulate IGF binding-protein (IGFBP) cleavage and IGF bioavailability, but their implications in AN are unknown. OBJECTIVE We determined serum levels of PAPP-As and STCs in relationship with classical IGF axis parameters in female adolescents with AN and their association with nutritional status and secondary amenorrhea. METHODS Parameters of the IGF axis were determined in fasting serum samples of 68 female adolescents with AN at diagnosis and 62 sex- and age-matched controls. Standardized body mass index (BMI) and bone mineral density (BMD) were calculated. RESULTS Patients with AN had lower concentrations of total and free IGF-I, total IGFBP-3, acid-labile subunit (ALS), insulin, PAPP-A2, STC-1, and STC-2 and higher levels of IGF-II and IGFBP-2. Their free/total IGF-I ratio was decreased and the intact/total IGFBP-3 and -4 ratios increased. BMI was directly related to total IGF-I and intact IGFBP-3 and inversely with IGFBP-2 and intact IGFBP-4. Weight loss was directly correlated with intact IGFBP-4 and negatively with intact IGFBP-3, ALS, STC-2, and PAPP-A2 concentrations. BMD was directly related to intact IGFBP-3 and inversely with intact IGFBP-4 and PAPP-A2 levels. Patients with amenorrhea had lower levels of total IGF-I and IGFBP-3 than those with menses. CONCLUSION The reduction of PAPP-A2 in patients with AN may be involved in a decline in IGFBP cleavage, which could underlie the decrease in IGF-I bioavailability that is influenced by nutritional status and amenorrhea.
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Affiliation(s)
- Vicente Barrios
- Departments of Pediatrics & Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Research Institute "La Princesa", E-28009 Madrid, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutriciόn, Instituto de Salud Carlos III, E-28009 Madrid, Spain
| | - Álvaro Martín-Rivada
- Departments of Pediatrics & Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Research Institute "La Princesa", E-28009 Madrid, Spain
| | - Santiago Guerra-Cantera
- Departments of Pediatrics & Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Research Institute "La Princesa", E-28009 Madrid, Spain
| | - Ana Campillo-Calatayud
- Departments of Pediatrics & Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Research Institute "La Princesa", E-28009 Madrid, Spain
| | - Ricardo A Camarneiro
- Department of Psychiatry and Clinical Psychology, Hospital Infantil Universitario Niño Jesús, E-28009 Madrid, Spain
| | - Montserrat Graell
- Department of Psychiatry and Clinical Psychology, Hospital Infantil Universitario Niño Jesús, E-28009 Madrid, Spain
- Centro de Investigación Biomédica en Red de Salud Mental, Instituto de Salud Carlos III, E-28009 Madrid, Spain
| | - Julie A Chowen
- Departments of Pediatrics & Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Research Institute "La Princesa", E-28009 Madrid, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutriciόn, Instituto de Salud Carlos III, E-28009 Madrid, Spain
- IMDEA, Food Institute, CEIUAM+CSI, Cantoblanco, E-28049 Madrid, Spain
| | - Jesús Argente
- Departments of Pediatrics & Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Research Institute "La Princesa", E-28009 Madrid, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutriciόn, Instituto de Salud Carlos III, E-28009 Madrid, Spain
- Centro de Investigación Biomédica en Red de Salud Mental, Instituto de Salud Carlos III, E-28009 Madrid, Spain
- IMDEA, Food Institute, CEIUAM+CSI, Cantoblanco, E-28049 Madrid, Spain
- Department of Pediatrics, Universidad Autónoma de Madrid, E-28049 Madrid, Spain
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10
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Nimptsch K, Aydin EE, Chavarria RFR, Janke J, Poy MN, Oxvig C, Steinbrecher A, Pischon T. Pregnancy associated plasma protein-A2 (PAPP-A2) and stanniocalcin-2 (STC2) but not PAPP-A are associated with circulating total IGF-1 in a human adult population. Sci Rep 2024; 14:1770. [PMID: 38245583 PMCID: PMC10799854 DOI: 10.1038/s41598-024-52074-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 01/12/2024] [Indexed: 01/22/2024] Open
Abstract
The pappalysins pregnancy associated plasma protein-A (PAPP-A) and -A2 (PAPP-A2) act as proteinases of insulin-like growth factor-1 (IGF-1) binding proteins, while stanniocalcin-2 (STC2) was identified as a pappalysin inhibitor. While there is some evidence from studies in children and adolescents, it is unclear whether these molecules are related to concentrations of IGF-1 and its binding proteins in adults. We investigated cross-sectionally the association of circulating PAPP-A, PAPP-A2 and STC2 with IGF-1 and its binding proteins (IGFBPs) in 394 adult pretest participants (20-69 years) of the German National Cohort Berlin North study center. Plasma PAPP-A, PAPP-A2, total and free IGF-1, IGFBP-1, IGFBP-2, IGFBP-3, IGFBP-5 and STC2 were measured by ELISAs. The associations of PAPP-A, PAPP-A2 and STC2 with IGF-1 or IGFBPs were investigated using multivariable linear regression analyses adjusting for age, sex, body mass index and pretest phase. We observed significant inverse associations of PAPP-A2 (difference in concentrations per 0.5 ng/mL higher PAPP-A2 levels) with total IGF-1 (- 4.3 ng/mL; 95% CI - 7.0; - 1.6), the IGF-1:IGFBP-3 molar ratio (- 0.34%; 95%-CI - 0.59; - 0.09), but not free IGF-1 and a positive association with IGFBP-2 (11.9 ng/mL; 95% CI 5.0; 18.8). PAPP-A was not related to total or free IGF-1, but positively associated with IGFBP-5. STC2 was inversely related to total IGF-1, IGFBP-2 and IGFBP-3 and positively to IGFBP-1. This first investigation of these associations in a general adult population supports the hypothesis that PAPP-A2 as well as STC2 play a role for IGF-1 and its binding proteins, especially for total IGF-1. The role of PAPP-A2 and STC2 for health and disease in adults warrants further investigation.
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Affiliation(s)
- Katharina Nimptsch
- Molecular Epidemiology Research Group, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Straße 10, 13125, Berlin, Germany.
| | - Elif Ece Aydin
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Rafael Francisco Rios Chavarria
- Molecular Epidemiology Research Group, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Straße 10, 13125, Berlin, Germany
| | - Jürgen Janke
- Molecular Epidemiology Research Group, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Straße 10, 13125, Berlin, Germany
- Biobank Technology Platform, Max-Delbrueck-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
- Core Facility Biobank, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Matthew N Poy
- John Hopkins University, All Children's Hospital, St. Petersburg, FL, USA
| | - Claus Oxvig
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
| | - Astrid Steinbrecher
- Molecular Epidemiology Research Group, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Straße 10, 13125, Berlin, Germany
| | - Tobias Pischon
- Molecular Epidemiology Research Group, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Straße 10, 13125, Berlin, Germany
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Biobank Technology Platform, Max-Delbrueck-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
- Core Facility Biobank, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
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11
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Conover CA, Oxvig C. The Pregnancy-Associated Plasma Protein-A (PAPP-A) Story. Endocr Rev 2023; 44:1012-1028. [PMID: 37267421 DOI: 10.1210/endrev/bnad017] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 05/01/2023] [Accepted: 05/31/2023] [Indexed: 06/04/2023]
Abstract
Pregnancy-associated plasma protein-A (PAPP-A) was first identified in the early 1970s as a placental protein of unknown function, present at high concentrations in the circulation of pregnant women. In the mid-to-late 1990s, PAPP-A was discovered to be a metzincin metalloproteinase, expressed by many nonplacental cells, that regulates local insulin-like growth factor (IGF) activity through cleavage of high-affinity IGF binding proteins (IGFBPs), in particular IGFBP-4. With PAPP-A as a cell surface-associated enzyme, the reduced affinity of the cleavage fragments results in increased IGF available to bind and activate IGF receptors in the pericellular environment. This proteolytic regulation of IGF activity is important, since the IGFs promote proliferation, differentiation, migration, and survival in various normal and cancer cells. Thus, there has been a steady growth in investigation of PAPP-A structure and function outside of pregnancy. This review provides historical perspective on the discovery of PAPP-A and its structure and cellular function, highlights key studies of the first 50 years in PAPP-A research, and introduces new findings from recent years.
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Affiliation(s)
- Cheryl A Conover
- Division of Endocrinology, Mayo Clinic, Rochester, MN 55905, USA
| | - Claus Oxvig
- Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus, Denmark
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12
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Sridar J, Mafi A, Judge RA, Xu J, Kong KA, Wang JCK, Stoll VS, Koukos G, Simon RJ, Eaton D, Bratkowski M, Hao Q. Cryo-EM structure of human PAPP-A2 and mechanism of substrate recognition. Commun Chem 2023; 6:234. [PMID: 37898658 PMCID: PMC10613257 DOI: 10.1038/s42004-023-01032-y] [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: 05/05/2023] [Accepted: 10/18/2023] [Indexed: 10/30/2023] Open
Abstract
Pregnancy-Associated Plasma Protein A isoforms, PAPP-A and PAPP-A2, are metalloproteases that cleave insulin-like growth factor binding proteins (IGFBPs) to modulate insulin-like growth factor signaling. The structures of homodimeric PAPP-A in complex with IGFBP5 anchor peptide, and inhibitor proteins STC2 and proMBP have been recently reported. Here, we present the single-particle cryo-EM structure of the monomeric, N-terminal LG, MP, and the M1 domains (with the exception of LNR1/2) of human PAPP-A2 to 3.13 Å resolution. Our structure together with functional studies provides insight into a previously reported patient mutation that inactivates PAPP-A2 in a distal region of the protein. Using a combinational approach, we suggest that PAPP-A2 recognizes IGFBP5 in a similar manner as PAPP-A and show that PAPP-A2 cleaves IGFBP5 less efficiently due to differences in the M2 domain. Overall, our studies characterize the cleavage mechanism of IGFBP5 by PAPP-A2 and shed light onto key differences with its paralog PAPP-A.
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Affiliation(s)
- Janani Sridar
- Calico Life Sciences LLC, South San Francisco, CA, 94080, USA
| | | | | | - Jun Xu
- Calico Life Sciences LLC, South San Francisco, CA, 94080, USA
| | - Kailyn A Kong
- Calico Life Sciences LLC, South San Francisco, CA, 94080, USA
| | - John C K Wang
- Calico Life Sciences LLC, South San Francisco, CA, 94080, USA
| | | | - Georgios Koukos
- Calico Life Sciences LLC, South San Francisco, CA, 94080, USA
| | - Reyna J Simon
- Calico Life Sciences LLC, South San Francisco, CA, 94080, USA
| | - Dan Eaton
- Calico Life Sciences LLC, South San Francisco, CA, 94080, USA
| | | | - Qi Hao
- Calico Life Sciences LLC, South San Francisco, CA, 94080, USA.
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13
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Lionikas A, Hernandez Cordero AI, Kilikevicius A, Carroll AM, Bewick GS, Bunger L, Ratkevicius A, Heisler LK, Harboe M, Oxvig C. Stanniocalcin-2 inhibits skeletal muscle growth and is upregulated in functional overload-induced hypertrophy. Physiol Rep 2023; 11:e15793. [PMID: 37568262 PMCID: PMC10510475 DOI: 10.14814/phy2.15793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 07/28/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023] Open
Abstract
AIMS Stanniocalcin-2 (STC2) has recently been implicated in human muscle mass variability by genetic analysis. Biochemically, STC2 inhibits the proteolytic activity of the metalloproteinase PAPP-A, which promotes muscle growth by upregulating the insulin-like growth factor (IGF) axis. The aim was to examine if STC2 affects skeletal muscle mass and to assess how the IGF axis mediates muscle hypertrophy induced by functional overload. METHODS We compared muscle mass and muscle fiber morphology between Stc2-/- (n = 21) and wild-type (n = 15) mice. We then quantified IGF1, IGF2, IGF binding proteins -4 and -5 (IGFBP-4, IGFBP-5), PAPP-A and STC2 in plantaris muscles of wild-type mice subjected to 4-week unilateral overload (n = 14). RESULTS Stc2-/- mice showed up to 10% larger muscle mass compared with wild-type mice. This increase was mediated by greater cross-sectional area of muscle fibers. Overload increased plantaris mass and components of the IGF axis, including quantities of IGF1 (by 2.41-fold, p = 0.0117), IGF2 (1.70-fold, p = 0.0461), IGFBP-4 (1.48-fold, p = 0.0268), PAPP-A (1.30-fold, p = 0.0154) and STC2 (1.28-fold, p = 0.019). CONCLUSION Here we provide evidence that STC2 is an inhibitor of muscle growth upregulated, along with other components of the IGF axis, during overload-induced muscle hypertrophy.
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Affiliation(s)
- Arimantas Lionikas
- School of Medicine, Medical Sciences and NutritionUniversity of AberdeenAberdeenUK
| | - Ana I. Hernandez Cordero
- Centre for Heart Lung InnovationUniversity of British Columbia, St. Paul's HospitalVancouverCanada
| | - Audrius Kilikevicius
- Department of Health Promotion and RehabilitationLithuanian Sports UniversityKaunasLithuania
| | - Andrew M. Carroll
- The New Zealand Institute for Plant & Food Research LimitedPalmerston NorthNew Zealand
| | - Guy S. Bewick
- School of Medicine, Medical Sciences and NutritionUniversity of AberdeenAberdeenUK
| | - Lutz Bunger
- Animal Genetics Company (AnGeCo)EdinburghScotland
| | - Aivaras Ratkevicius
- Department of Health Promotion and RehabilitationLithuanian Sports UniversityKaunasLithuania
| | - Lora K. Heisler
- School of Medicine, Medical Sciences and NutritionUniversity of AberdeenAberdeenUK
| | - Mette Harboe
- Department of Molecular Biology and GeneticsAarhus UniversityAarhusDenmark
| | - Claus Oxvig
- Department of Molecular Biology and GeneticsAarhus UniversityAarhusDenmark
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14
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Oxvig C, Conover CA. The Stanniocalcin-PAPP-A-IGFBP-IGF Axis. J Clin Endocrinol Metab 2023; 108:1624-1633. [PMID: 36718521 DOI: 10.1210/clinem/dgad053] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 01/20/2023] [Accepted: 01/25/2023] [Indexed: 02/01/2023]
Abstract
The pappalysin metalloproteinases, PAPP-A and PAPP-A2, have emerged as highly specific proteolytic enzymes involved in the regulation of insulin-like growth factor (IGF) signaling. The only known pappalysin substrates are a subset of the IGF binding proteins (IGFBPs), which bind IGF-I or IGF-II with high affinity to antagonize receptor binding. Thus, by cleaving IGFBPs, the pappalysins have the potential to increase IGF bioactivity and hence promote IGF signaling. This is relevant both in systemic and local IGF regulation, in normal and several pathophysiological conditions. Stanniocalcin-1 and -2 were recently found to be potent pappalysin inhibitors, thus comprising the missing components of a complete proteolytic system, the stanniocalcin-PAPP-A-IGFBP-IGF axis. Here, we provide the biological context necessary for understanding the properties of this molecular network, and we review biochemical data, animal experiments, clinical data, and genetic data supporting the physiological operation of this branch as an important part of the IGF system. However, although in vivo data clearly illustrate its power, it is a challenge to understand its subtle operation, for example, multiple equilibria and inhibitory kinetics may determine how, where, and when the IGF receptor is stimulated. In addition, literally all of the regulatory proteins have suspected or known activities that are not directly related to IGF signaling. How such activities may integrate with IGF signaling is also important to address in the future.
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Affiliation(s)
- Claus Oxvig
- Department of Molecular Biology and Genetics, Aarhus University, DK-8000 C, Aarhus, Denmark
| | - Cheryl A Conover
- Division of Endocrinology, Mayo Clinic, Rochester, MN 55905, USA
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15
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Guibourdenche J, Leguy MC, Pidoux G, Hebert-Schuster M, Laguillier C, Anselem O, Grangé G, Bonnet F, Tsatsaris V. Biochemical Screening for Fetal Trisomy 21: Pathophysiology of Maternal Serum Markers and Involvement of the Placenta. Int J Mol Sci 2023; 24:ijms24087669. [PMID: 37108840 PMCID: PMC10146970 DOI: 10.3390/ijms24087669] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 04/19/2023] [Accepted: 04/20/2023] [Indexed: 04/29/2023] Open
Abstract
It is now well established that maternal serum markers are often abnormal in fetal trisomy 21. Their determination is recommended for prenatal screening and pregnancy follow-up. However, mechanisms leading to abnormal maternal serum levels of such markers are still debated. Our objective was to help clinicians and scientists unravel the pathophysiology of these markers via a review of the main studies published in this field, both in vivo and in vitro, focusing on the six most widely used markers (hCG, its free subunit hCGβ, PAPP-A, AFP, uE3, and inhibin A) as well as cell-free feto-placental DNA. Analysis of the literature shows that mechanisms underlying each marker's regulation are multiple and not necessarily directly linked with the supernumerary chromosome 21. The crucial involvement of the placenta is also highlighted, which could be defective in one or several of its functions (turnover and apoptosis, endocrine production, and feto-maternal exchanges and transfer). These defects were neither constant nor specific for trisomy 21, and might be more or less pronounced, reflecting a high variability in placental immaturity and alteration. This explains why maternal serum markers can lack both specificity and sensitivity, and are thus restricted to screening.
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Affiliation(s)
- Jean Guibourdenche
- Hormonologie CHU Cochin AP-HP, 75014 Paris, France
- Faculté de Santé, Université Paris Cité, 75014 Paris, France
- FHU Préma, 75014 Paris, France
| | | | | | | | - Christelle Laguillier
- Hormonologie CHU Cochin AP-HP, 75014 Paris, France
- Faculté de Santé, Université Paris Cité, 75014 Paris, France
- UMR-S1139, 75014 Paris, France
| | - Olivia Anselem
- FHU Préma, 75014 Paris, France
- Maternité Port Royal CHU Cochin AP-HP, 75014 Paris, France
| | - Gilles Grangé
- FHU Préma, 75014 Paris, France
- Maternité Port Royal CHU Cochin AP-HP, 75014 Paris, France
| | - Fidéline Bonnet
- Hormonologie CHU Cochin AP-HP, 75014 Paris, France
- Faculté de Santé, Université Paris Cité, 75014 Paris, France
| | - Vassilis Tsatsaris
- Faculté de Santé, Université Paris Cité, 75014 Paris, France
- FHU Préma, 75014 Paris, France
- Maternité Port Royal CHU Cochin AP-HP, 75014 Paris, France
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16
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Rodríguez-Banqueri A, Moliner-Culubret M, Mendes SR, Guevara T, Eckhard U, Gomis-Rüth FX. Structural insights into latency of the metallopeptidase ulilysin (lysargiNase) and its unexpected inhibition by a sulfonyl-fluoride inhibitor of serine peptidases. Dalton Trans 2023; 52:3610-3622. [PMID: 36857690 DOI: 10.1039/d3dt00458a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
Peptidases are regulated by latency and inhibitors, as well as compatibilization and cofactors. Ulilysin from Methanosarcina acetivorans, also called lysargiNase, is an archaeal metallopeptidase (MP) that is biosynthesized as a zymogen with a 60-residue N-terminal prosegment (PS). In the presence of calcium, it self-activates to yield the mature enzyme, which specifically cleaves before basic residues and thus complements trypsin in proteomics workflows. Here, we obtained a low-resolution crystal structure of proulilysin, in which 28 protomers arranged as 14 dimers form a continuous double helix of 544 Å pitch that parallels cell axis b of the crystal. The PS includes two α-helices and obstructs the active-site cleft of the catalytic domain (CD) by traversing it in the opposite orientation of a substrate, and a cysteine blocks the catalytic zinc according to a "cysteine-switch mechanism". Moreover, the PS interacts through its first helix with an "S-loop" of the CD, which acts as an "activation segment" that lacks one of two essential calcium cations. Upon PS removal during maturation, the S-loop adopts its competent conformation and binds the second calcium ion. Next, we found that in addition to general MP inhibitors, ulilysin was competitively and reversibly inhibited by 4-(2-aminoethyl)benzenesulfonyl fluoride (AEBSF; Ki = 4 μM). This is a compound that normally forms an irreversible covalent complex with serine peptidases but does not inhibit MPs. A high-resolution crystal structure of the complex revealed that the inhibitor penetrates the specificity pocket of ulilysin. A primary amine of the inhibitor salt-bridges an aspartate at the pocket bottom, thus mimicking the basic side chain of substrates. In contrast, the sulfonyl fluoride warhead is not involved and the catalytic zinc ion is freely accessible. Thus, the usage of inhibitor cocktails of peptidases, which typically contain AEBSF at ∼25-fold higher concentrations than the determined Ki, should be avoided when working with ulilysin. Finally, the structure of the complex, which occurred as a crystallographic dimer recurring in previous mature ulilysin structures, unveiled an N-terminal product fragment that delineated the non-primed side of the cleft. These results complement prior structures of ulilysin with primed-side product fragments and inhibitors.
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Affiliation(s)
- Arturo Rodríguez-Banqueri
- Proteolysis Laboratory; Department of Structural and Molecular Biology; Molecular Biology Institute of Barcelona (IBMB), Higher Scientific Research Council (CSIC); Barcelona Science Park; c/Baldiri Reixac 4-8, Tower R, 08028 Barcelona, Catalonia, Spain.
| | - Marina Moliner-Culubret
- Proteolysis Laboratory; Department of Structural and Molecular Biology; Molecular Biology Institute of Barcelona (IBMB), Higher Scientific Research Council (CSIC); Barcelona Science Park; c/Baldiri Reixac 4-8, Tower R, 08028 Barcelona, Catalonia, Spain.
| | - Soraia R Mendes
- Proteolysis Laboratory; Department of Structural and Molecular Biology; Molecular Biology Institute of Barcelona (IBMB), Higher Scientific Research Council (CSIC); Barcelona Science Park; c/Baldiri Reixac 4-8, Tower R, 08028 Barcelona, Catalonia, Spain.
| | - Tibisay Guevara
- Proteolysis Laboratory; Department of Structural and Molecular Biology; Molecular Biology Institute of Barcelona (IBMB), Higher Scientific Research Council (CSIC); Barcelona Science Park; c/Baldiri Reixac 4-8, Tower R, 08028 Barcelona, Catalonia, Spain.
| | - Ulrich Eckhard
- Proteolysis Laboratory; Department of Structural and Molecular Biology; Molecular Biology Institute of Barcelona (IBMB), Higher Scientific Research Council (CSIC); Barcelona Science Park; c/Baldiri Reixac 4-8, Tower R, 08028 Barcelona, Catalonia, Spain.
| | - F Xavier Gomis-Rüth
- Proteolysis Laboratory; Department of Structural and Molecular Biology; Molecular Biology Institute of Barcelona (IBMB), Higher Scientific Research Council (CSIC); Barcelona Science Park; c/Baldiri Reixac 4-8, Tower R, 08028 Barcelona, Catalonia, Spain.
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17
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Zhu D, Liu J, Wang J, Zhang L, Jiang M, Liu Y, Xiong Y, He X, Li G. Transcriptome and pan-cancer system analysis identify PM2.5-induced stanniocalcin 2 as a potential prognostic and immunological biomarker for cancers. Front Genet 2023; 13:1077615. [PMID: 36685853 PMCID: PMC9852732 DOI: 10.3389/fgene.2022.1077615] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 11/28/2022] [Indexed: 01/09/2023] Open
Abstract
Epidemiological studies have shown that air pollution and particulate matter (PM) are closely related to the occurrence of cancer. However, the potential prognostic and immunological biomarkers for air pollution related cancers are lacking. In this study, we proved PM2.5 exposure was correlated with lung cancer through transcriptome analysis. Importantly, we identified STC2 as a key gene regulated by PM2.5, whose expression in epithelial cells was significantly increased after PM2.5 treatment and validated by using RT-qPCR and immunofluorescence. Kaplan-Meier OS curves suggested that high STC2 expression positively correlated with a poor prognosis in lung cancer. Furthermore, we discovered that STC2 was associated with multiple cancers and pathways in cancer. Next, Pan-Cancer Expression Landscape of STC2 showed that STC2 exhibited inconsistent expression across 26 types of human cancer, lower in KIRP in cancer versus adjacent normal tissues, and significantly higher in another cancers. Cox regression results suggested that STC2 expression was positively or negatively associated with prognosis in different cancers. Moreover, STC2 expression was associated with clinical phenotypes including age, gender, stage and grade. Mutation features of STC2 were also analyzed, in which the highest alteration frequency of STC2 was presented in KIRC with amplification. Meanwhile, the effects of copy number variation (CNV) on STC2 expression were investigated across various tumor types, suggesting that STC2 expression was significantly correlated with CNV in tumors. Additionally, STC2 was closely related to tumor heterogeneity, tumor stemness and tumor immune microenvironment like immune cell infiltration. In the meantime, we analyzed methylation modifications and immunological correlation of STC2. The results demonstrated that STC2 expression positively correlated with most RNA methylation genes and immunomodulators across tumors. Taken together, the findings revealed that PM2.5-induced STC2 might be a potential prognostic and immunological biomarker for cancers related to air pollution.
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Affiliation(s)
- Dong Zhu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macau SAR, China
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
| | - Jiliu Liu
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
| | - Junyi Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macau SAR, China
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
| | - Lei Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macau SAR, China
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
| | - Manling Jiang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macau SAR, China
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
| | - Yao Liu
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
| | - Ying Xiong
- Department of Pulmonary and Critical Care Medicine, Sichuan Friendship Hospital, Chengdu, China
| | - Xiang He
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
| | - Guoping Li
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macau SAR, China
- Laboratory of Allergy and Precision Medicine, Chengdu Institute of Respiratory Health, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
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