1
|
Legge M, Lash GE, Bird SD, Walkerl RJ. Formaldehyde in Heat Sterilized Peritoneal Dialysis Solutions: Scavenging System for Its Removal. Perit Dial Int 2020. [DOI: 10.1177/089686089801800214] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Michael Legge
- Departments of Biochemistry and Medicine1 University of Otago Dunedin, New Zealand
| | - Gendie E. Lash
- Departments of Biochemistry and Medicine1 University of Otago Dunedin, New Zealand
| | - Stephen D. Bird
- Departments of Biochemistry and Medicine1 University of Otago Dunedin, New Zealand
| | - Robert J. Walkerl
- Departments of Biochemistry and Medicine1 University of Otago Dunedin, New Zealand
| |
Collapse
|
2
|
Bird SD, Walker RJ. Mast Cell Histamine-Induced Calcium Transients in Cultured Human Peritoneal Mesothelial Cells. Perit Dial Int 2020. [DOI: 10.1177/089686089801800611] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
ObjectivePeritoneal inflammation results from a complex interplay of events initiated by macrophage activity in response to infection, with the stimulation of mesothelial cell cytokine release amplifying the recruitment of blood-borne defense cells to the site of injury. Resident peritoneal mast cells may add to this complexity with mast cell derived cytokines released during this cascade. This study examined the influence of histamine, a mast cell derived inflammatory mediator, on the initial activation of human peritoneal mesothelial cells (HPMC) by intracellular free calcium (Cai2+) mobilization, and changes to the actin cytoskeleton.DesignHPMC signal transduction was examined in response to histamine (1.0 mmol/L) compared to fetal bovine serum (FBS) (0.1 %) and 4-br-A23187 (1.0 μmol/L). Intracellular free calcium was measured in fura-2 loaded cells with and without external calcium (Ca2ex+t), or Ca2ex+t with verapamil (100 μmol/L). Following treatment with agonists, HPMC actin cytoskeleton was stained using direct immunocytochemistry.ResultsHPMC responded to histamine with a twofold transient rise in Cai2+ which returned to the baseline, in contrast with FBS and A23187–induced Cai2+ transients, which returned to elevated resting values. In the absence of Ca2ex+t’ all agents produced a calcium transient indicative of calcium release from intracellular stores. Histamine induced calcium -dependent changes to the cytoskeleton and cellular organization, including increased actin stress fibers.ConclusionHistamine produced large specific receptor-mediated calcium transients in HPMC, which included components of calcium release from intracellular stores and receptor -mediated calcium influx processes. The observed response to histamine raises the possibility that histamine derived from resident mast cells may modulate mesothelial cell function, in part by calciumdependent pathways, and influence the performance of the peritoneal membrane during peritoneal dialysis.
Collapse
Affiliation(s)
- Stephen D. Bird
- Department of Medicine, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - Robert J. Walker
- Department of Medicine, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| |
Collapse
|
3
|
Bird SD. Calcium mediates cell shape change in human peritoneal mesothelial cells. Cell Calcium 2018; 72:116-126. [PMID: 29730478 DOI: 10.1016/j.ceca.2018.02.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 01/15/2018] [Accepted: 02/15/2018] [Indexed: 12/13/2022]
Abstract
Mast cells in the peritoneal membrane (PM) may degranulate to release preformed inflammatory mediators including histamine which is capable of diffusing into the surrounding interstitium, modulating cells in their vicinity including, human peritoneal mesothelial cells (hPMC). The present study aimed to investigate the quorum intracellular calcium ([Ca2+i]) response to histamine compared to the membrane soluble ionophore, A23187, in adherent cultured hPMC. To examine [Ca2+i] handling, Fura - 2 loaded cells were exposed to histamine and A23187. Agonist induced transient [Ca2+i] event(s) (TCE) were defined and compared including, resting calcium, peak height, recovery and transient kinetics. Changes in cell shape were examined with immunocytochemistry of the cortical actin (CA) and microtubule (MT) cytoskeleton. To investigate whether histamine induced changes in cell shape were mediated by [Ca2+i], mobilization of [Ca2+i] was prevented with 20 μmol/l of the calcium chelator 1,2-bis-(2-aminophenoxy) ethane-N,N,N',N'-tetraacetic acid (BAPTA-AM). Histamine produced a dose dependent increase of [Ca2+i], maximal at 1.0 mmol/l which recovered to the pre-challenge resting value. Transient multiplicity with repeated challenge was evident below a histamine threshold of 10-2 mmol/l. Morphometric analysis of MTs and CA showed significant cell elongation plus histamine and A23187. The histamine induced cell elongation was eliminated with [Ca2+i] clamping. This data indicated that increased [Ca2+i] was essential for cell elongation and the formation of stress fibres and therefore has a pivotal role in the regulation of the PM barrier.
Collapse
Affiliation(s)
- Stephen D Bird
- Department of Obstetrics and Gynaecology, The University of Melbourne, Victoria, Australia; Department of Medicine, Dunedin School of Medicine, The University of Otago, Dunedin, New Zealand.
| |
Collapse
|
4
|
Zhang XY, Pettengell R, Nasiri N, Kalia V, Dalgleish AG, Barton DPJ. Characteristics and Growth Patterns of Human Peritoneal Mesothelial Cells: Comparison Between Advanced Epithelial Ovarian Cancer and Non-Ovarian Cancer Sources. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/107155769900600610] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
| | | | | | | | - Angus G. Dalgleish
- Division of Gynaecological Oncology, Department of Obstetrics and Gynaecology, and Department of Molecular and Cellular Sciences, St. George's Hospital Medical School, London, England; Department of Pathology, Royal Marsden Hospital, London, England
| | - Desmond P. J. Barton
- Division of Gynaecological Oncology, Department of Obstetrics and Gynaecology, and Department of Molecular and Cellular Sciences, St. George's Hospital Medical School, London, England; Department of Pathology, Royal Marsden Hospital, London, England
| |
Collapse
|
5
|
Moon PD, Kim MH, Oh HA, Nam SY, Han NR, Jeong HJ, Kim HM. Cysteine induces longitudinal bone growth in mice by upregulating IGF-I. Int J Mol Med 2015; 36:571-6. [PMID: 26101100 DOI: 10.3892/ijmm.2015.2257] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 06/16/2015] [Indexed: 11/06/2022] Open
Abstract
Cysteine (Cys) is known to exert various effects, such as antioxidant, antipancreatitic and antidiabetic effects. However, the effects of Cys on longitudinal bone growth have not been elucidate to date. Thus, the aim of the present study was to evaluate the effects of Cys on bone growth. Growth-plate thickness and bone parameters, such as bone volume/tissue volume (BV/TV), trabecular thickness (Tb.Th), trabecular number (Tb.N), connectivity density (Conn.D) and total porosity were analyzed by means of micro-computed tomography (μCT). The levels of serum insulin-like growth factor-I (IGF-I) were measured by enzyme-linked immunosorbent assay (ELISA). Hepatic IGF-I mRNA expression was analyzed by quantitative polymerase chain reaction (qPCR). The phosphorylation of Janus kinase 2 (JAK2) and signal transducer and activator of transcription 5 (STAT5) was investigated by western blot analysis. Our results revealed that Cys increased IGF-I mRNA expression in HepG2 cells. The thickness of the growth plates was increased following treatment with Cys. Moreover, BV/TV, Tb.Th, TbN, Conn.D and total porosity were improved following treatment with Cys. Hepatic IGF-I mRNA expression and serum IGF-I levels were increased by Cys. The levels of phosphorylated JAK2 and STAT5 were elevated by Cys. The findings of our study indicate that Cys increases the thickness of growth plates through the upregulation of IGF-I, which results from the phosphorylation of JAK2-STAT5. Thus, our data suggest that Cys may have potential for use as a growth-promoting agent.
Collapse
Affiliation(s)
- Phil-Dong Moon
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul 130‑701, Republic of Korea
| | - Min-Ho Kim
- Department of Computer Aided Mechanical Engineering, Sohae College, Gunsan, Jeonbuk, 573-717, Republic of Korea
| | - Hyun-A Oh
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul 130‑701, Republic of Korea
| | - Sun-Young Nam
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul 130‑701, Republic of Korea
| | - Na-Ra Han
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul 130‑701, Republic of Korea
| | - Hyun-Ja Jeong
- Biochip Research Center, Hoseo University, Asan, Chungnam 336‑795, Republic of Korea
| | - Hyung-Min Kim
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul 130‑701, Republic of Korea
| |
Collapse
|
6
|
Yslas EI, Cavallo P, Acevedo DF, Barbero CA, Rivarola VA. Cysteine modified polyaniline films improve biocompatibility for two cell lines. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 51:51-6. [DOI: 10.1016/j.msec.2015.02.049] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Revised: 08/03/2014] [Accepted: 02/24/2015] [Indexed: 11/25/2022]
|
7
|
l-Cysteine improves survival and growth of mesothelial cells after freezing. Cell Biol Int 2013; 33:1155-64. [DOI: 10.1016/j.cellbi.2009.08.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2007] [Revised: 06/29/2009] [Accepted: 08/17/2009] [Indexed: 11/18/2022]
|
8
|
Lim CH, Jeong W, Lim W, Kim J, Song G, Bazer FW. Differential Expression of Select Members of the SLC Family of Genes and Regulation of Expression by MicroRNAs in the Chicken Oviduct1. Biol Reprod 2012; 87:145. [DOI: 10.1095/biolreprod.112.101444] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
|
9
|
Abstract
Cellular thiols including GSH (glutathione) and L-Cys (L-cysteine) are essential for cell signalling, growth and differentiation. L-Cys is derived from the extracellular thiol pool and is the rate-limiting compound for intracellular GSH biosynthesis. The present study investigated the effect of thiol-supplemented medium on cell growth, phenotype and total GSH of cultured hPMCs (human peritoneal mesothelial cells). Cells were cultured in medium M199 supplemented with 2% serum, with 'plus' or without 'minus' L-Cys and compared with medium supplemented with either β-ME (β-mercaptoethanol) (0.25 mmol/l) or the receptor tyrosine kinase ligand EGF (epidermal growth factor, 100 ng/ml). β-ME produced a disproportionate increase in total GSH compared with L-Cys and other thiols tested [(procysteine (2-oxothiazolidine-4-carboxylic acid) or NAC (N-acetyl-L-cysteine)], while growth and morphology were identical. Cell behaviour of primary hPMCs is characterized by the transition of fibroblastoid to cobblestone morphology during early passage. L-Cys and β-ME promoted a rapid MET (mesenchymal-to-epithelial transition) within 3 days of culture, confirmed by the presence of cobblestone cells, intact organelles, abundant microvilli, primary cilia and cortical actin. In contrast, EGF produced a biphasic response consisting of delayed growth and retention of a fibroblastoid morphology. During a rapid log phase of growth, MET was accompanied by rapid catch-up growth. Thiols may stabilize the epithelial phenotype by engaging redox-sensitive receptors and transcription factors that modulate differentiation. These data may benefit researchers working on thiol-mediated cell differentiation and strategies to regenerate damage to serosal membranes.
Collapse
|
10
|
Bird SD, Walker RJ. Effects of bicarbonate buffered dialysate on human peritoneal mesothelial cell intracellular calcium homeostasis. Nephrology (Carlton) 2003; 8:150-5. [PMID: 15012732 DOI: 10.1046/j.1440-1797.2003.00150.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
This study compares the biocompatibility of two bicarbonate-based peritoneal dialysis (PD) solutions using the measurement of intracellular free calcium (Ca(i)2+)) as a sensitive parameter of cell function in human peritoneal mesothelial cells (hPMC). Fura-2-loaded hPMC suspensions were exposed to bicarbonate (38 mmol/L) and bicarbonate (25 mmol/L), lactate-buffered PD (15 mmol/L) solutions at pH 7.4 and compared with Krebs-Ringer physiological saline (KRS; pH = 7.4). Resting Ca(i)2+ values and 4br-A23187 (1.0 micro mol/L) induced transients were compared in treatment and control groups. In separate studies, the effect that low saline pH had on Ca(i)(2+) homeostasis was examined. Suspended cells or cells attached to coverslips were bathed in citric acid-phosphate (McIllvaine's) buffered saline (MBS, pH = 7.4). Cells were acidified (pH = 5.3) with citric acid and then challenged with ionophore. Ionophore challenge produced a significantly reduced Ca(i)2+ transient response in cells exposed to the bicarbonate/lactate fluid compared with bicarbonate or KRS. Acidified cell suspensions produced a small monophasic Ca(i)2+ transient rise that was short lived. Gradual recovery of MBS to pH 7.4 produced no changes to Ca(i)2+ homeostasis of cell monolayers. Ionophore treatment produced a biphasic response identical to cells bathed in KRS. This study has demonstrated that short-term exposure to bicarbonate did not alter Ca(i)2+ homeostasis directly, or subsequent modulation of intracellular pH. The MBS system provided a reliable method of modifying the external pH during continuous Ca(i)2+ measurement.
Collapse
Affiliation(s)
- Stephen D Bird
- Department of Medical and Surgical Science, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand.
| | | |
Collapse
|