1
|
Jandova J, Janda J, Sligh JE. Cyclophilin 40 alters UVA-induced apoptosis and mitochondrial ROS generation in keratinocytes. Exp Cell Res 2013; 319:750-60. [PMID: 23220213 PMCID: PMC3577976 DOI: 10.1016/j.yexcr.2012.11.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Revised: 11/20/2012] [Accepted: 11/22/2012] [Indexed: 12/28/2022]
Abstract
The CyP40 protein encoded by PPID gene is a member of the peptidyl-prolyl cis-trans isomerase (PPIase) family. PPIases catalyze the cis-trans isomerization of proline imidic peptide bonds in oligopeptides and accelerate the folding of proteins. The CyP40 protein has been shown to possess PPIase activity and, similar to other family members, can bind to the immunosuppressant drug cyclosporin A (CsA). In this study, we created keratinocyte cell lines with CyP40 being stably knocked down using viral particles containing shRNA for CyP40 which knocked down the expression level of CyP40 transcripts by 90-99%. The proliferation rates of the cell lines with silenced CyP40 were decreased compared to the control cells. After UVA irradiation, the rate of apoptosis was found to be significantly lower in CyP40 silenced cell lines than it was in control cells. Moreover, mitochondrial membrane potential (MMP) was found to be less dissipated and mitochondrial permeability transition pore (MPTP) less active in cells with knocked down CyP40 than in control cells after UVA irradiation. Also, less mitochondrial superoxide was detected in the cells with silenced CyP40 compared to control cells after UVA exposure. Moreover, silencing of CyP40 partially modulates expression of key genes involved in mitochondrial pore formation including CyPD, ANTs and VDAC family members. The ability of CyP40 to regulate UV induced apoptosis implicates this protein as a potential target for therapy in cancer cells.
Collapse
Key Words
- cyp40/ppid, cytosolic cyclophilin 40
- ppiase, peptidyl-prolyl cis–trans isomerase
- mmp, mitochondrial membrane potential
- mptp, mitochondrial transition pore
- vdac, voltage dependent anion channel
- ant, adenine nucleotide translocator
- uv, ultraviolet
- rc, respiratory chain
- ros, reactive oxygen species
- csa, cyclosporine a
- sirna, short-interfering rna
- shrna, short-hairpin rna
- tpr, tetratricopeptide repeat
- dmem, dulbecco's modified eagle's medium
- dpbs, dulbecco's phosphate buffered saline
- fbs, fetal bovine serum
- cccp, carbonyl cyanide 3-chlorophenylhydrazone
- pi, propidium iodide
- jc-1, 5′,6,6′-tetrachloro-1,1′,3,3′-tetraethylbenzimidazolylcarbocyanine iodide
- hbss/ca, hank's balanced salt solution containing calcium
- ps, phosphatidylserine
- cam, calcein am
- am, acetoxymethyl
- ipc, ischemic preconditioning
- tgf-β, transforming growth factor beta
- tmre, tetramethylrhodamine, ethyl ester
- cypd/ppif, mitochondrial cyclophilin d
- cyp40
- stable cyp40 knock-down
- mitochondrial membrane potential
- mitochondrial pore opening
- uva-induced apoptosis
- reactive oxygen species
- keratinocytes
Collapse
Affiliation(s)
- Jana Jandova
- Southern Arizona VA Healthcare System and the Department of Medicine, Division of Dermatology and Arizona Cancer Center, University of Arizona, 1515N Campbell Avenue, Tucson, AZ, USA.
| | | | | |
Collapse
|
2
|
Bourke CH, Raees MQ, Malviya S, Bradburn CA, Binder EB, Neigh GN. Glucocorticoid sensitizers Bag1 and Ppid are regulated by adolescent stress in a sex-dependent manner. Psychoneuroendocrinology 2013; 38:84-93. [PMID: 22647578 PMCID: PMC3443296 DOI: 10.1016/j.psyneuen.2012.05.001] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Revised: 04/02/2012] [Accepted: 05/02/2012] [Indexed: 10/28/2022]
Abstract
Early life stress precipitates dysregulation of the hypothalamic-pituitary-adrenal (HPA) axis and this effect is most pronounced in females. The mechanisms that mediate female sensitivity to stress-induced HPA axis dysregulation are unknown. The purpose of this study was to determine whether sex moderates the effects of chronic adolescent stress on glucocorticoid receptor (GR) translocation and moderators of the GR system. Female adolescent rats with a history of chronic stress exposure demonstrated a delayed resolution of the plasma corticosterone response to an acute stressor and this delay was accompanied by attenuated GR translocation compared to control adolescent females. The chronic stress-induced phenotype in females was similar to the baseline phenotype in male adolescent rats. Conversely, the expression patterns of GR moderators/co-chaperones became more sexually dimorphic following chronic stress, suggesting divergent function of the GR system between male and female adolescent rats. Gene expression of Ppid, a positive regulator of the GR, was predicted by plasma estradiol and 34% lower in control adolescent females than males, indicating that sex steroids may play a role in the sexually dimorphic response. After chronic adolescent stress, females displayed elevated hippocampal expression of Bag1 and Ppid genes that was not observed in males. Overall, the GR output to an acute stressor, illustrated by transcription of Nr3c1 (encoding the GR), Bag1, Fkbp5, Ppid, and Src1, was significantly upregulated and differed in a sex-specific and chronic stress-dependent manner. This study provides new evidence for sex differences during development and adaptation of the glucocorticoid receptor chaperone system.
Collapse
Affiliation(s)
- Chase H. Bourke
- Department of Psychiatry and Behavioral Sciences, Emory University, 101 Woodruff Circle, Suite 4000, Atlanta, GA, 30322
| | - Madiha Q. Raees
- Department of Psychiatry and Behavioral Sciences, Emory University, 101 Woodruff Circle, Suite 4000, Atlanta, GA, 30322
| | - Sanjana Malviya
- Department of Psychiatry and Behavioral Sciences, Emory University, 101 Woodruff Circle, Suite 4000, Atlanta, GA, 30322
| | - Cory A. Bradburn
- Department of Psychiatry and Behavioral Sciences, Emory University, 101 Woodruff Circle, Suite 4000, Atlanta, GA, 30322
| | - Elisabeth B. Binder
- Department of Psychiatry and Behavioral Sciences, Emory University, 101 Woodruff Circle, Suite 4000, Atlanta, GA, 30322,Max-Planck Institute of Psychiatry, Kraepelinstr. 2-10, 80804 Munich, Germany
| | - Gretchen N. Neigh
- Department of Psychiatry and Behavioral Sciences, Emory University, 101 Woodruff Circle, Suite 4000, Atlanta, GA, 30322,Department of Physiology, Emory University, Atlanta, GA, 30322,Center for Behavioral Neuroscience, PO Box 3999, Atlanta, GA, 30302,Comprehensive Neuroscience Center Child and Adolescent Mood Program, Emory University, 1256 Briarcliff Road NE, Suite 322E, Atlanta, GA, 30306,Corresponding Author: Dr. Gretchen N. Neigh, 615 Michael Street, Suite 600, Atlanta, GA 30322, Voice: (404)727-9022, Fax: (404)727-2648,
| |
Collapse
|
3
|
Park MS, Chu F, Xie J, Wang Y, Bhattacharya P, Chan WK. Identification of cyclophilin-40-interacting proteins reveals potential cellular function of cyclophilin-40. Anal Biochem 2011; 410:257-65. [PMID: 21146485 PMCID: PMC3034277 DOI: 10.1016/j.ab.2010.12.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2010] [Revised: 11/18/2010] [Accepted: 12/06/2010] [Indexed: 01/16/2023]
Abstract
Cyclophilin-40 (CyP40) is part of the immunophilin family and is found in Hsp90-containing protein complexes. We were interested in identifying proteins that interact with CyP40. CyP40-interacting proteins in HeLa cells were identified using the tandem affinity purification approach. Adenovirus expressing human CyP40 protein (Ad-CyP40), fused with streptavidin and calmodulin binding peptides at the N terminus, was generated. Proteins were separated on a sodium dodecyl sulfate-polyacrylamide gel electrophoresis gel after tandem affinity purification. Here 10 silver-stained protein bands that were enriched in the Ad-CyP40-infected lysate and the corresponding regions in the control lysate were excised, digested by trypsin, and identified by tandem mass spectrometric analysis. Of 11 interacting proteins that were identified, 4 (RACK1, Ku70, RPS3, and NF45) were expressed in rabbit reticulocyte lysate, bacteria, and MCF-7 cells. We confirmed that these proteins interact with CyP40. We observed that RACK1 suppressed the cobalt chloride-induced, hypoxia response element-dependent luciferase activity in MCF-7 cells but not in MCF-7 stable cells expressing approximately 10% of the cellular CyP40 content. In addition, RACK1 reduced the HIF-1α protein accumulation after cobalt chloride treatment, which was not observed when the CyP40 content was down-regulated. Collectively, we conclude that reduction of the HIF-1 α protein by RACK1 is CyP40-mediated.
Collapse
Affiliation(s)
- Miki Susanto Park
- Department of Pharmaceutics and Medicinal Chemistry, Thomas J. Long School of Pharmacy and Health Sciences, University of the Pacific, Stockton, CA 95211, USA.
| | | | | | | | | | | |
Collapse
|
4
|
Smith MR, Willmann MR, Wu G, Berardini TZ, Möller B, Weijers D, Poethig RS. Cyclophilin 40 is required for microRNA activity in Arabidopsis. Proc Natl Acad Sci U S A 2009; 106:5424-9. [PMID: 19289849 PMCID: PMC2664006 DOI: 10.1073/pnas.0812729106] [Citation(s) in RCA: 129] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2008] [Indexed: 01/02/2023] Open
Abstract
Loss-of-function mutations of SQUINT (SQN)-which encodes the Arabidopsis orthologue of cyclophilin 40 (CyP40)-cause the precocious expression of adult vegetative traits, an increase in carpel number, and produce abnormal spacing of flowers in the inflorescence. Here we show that the vegetative phenotype of sqn is attributable to the elevated expression of miR156-regulated members of the SPL family of transcription factors and provide evidence that this defect is a consequence of a reduction in the activity of ARGONAUTE1 (AGO1). Support for this latter conclusion was provided by the phenotypic similarity between hypomorphic alleles of AGO1 and null alleles of SQN and by the genetic interaction between sqn and these alleles. Our results suggest that AGO1, or an AGO1-interacting protein, is a major client of CyP40 and that miR156 and its targets play a central role in the regulation of vegetative phase change in Arabidopsis.
Collapse
Affiliation(s)
- Michael R. Smith
- Department of Biology, University of Pennsylvania, Philadelphia, PA 19104; and
| | - Matthew R. Willmann
- Department of Biology, University of Pennsylvania, Philadelphia, PA 19104; and
| | - Gang Wu
- Department of Biology, University of Pennsylvania, Philadelphia, PA 19104; and
| | - Tanya Z. Berardini
- Department of Biology, University of Pennsylvania, Philadelphia, PA 19104; and
| | - Barbara Möller
- Laboratory of Biochemistry, Wageningen University, 6700 HB Wageningen, The Netherlands
| | - Dolf Weijers
- Laboratory of Biochemistry, Wageningen University, 6700 HB Wageningen, The Netherlands
| | - R. Scott Poethig
- Department of Biology, University of Pennsylvania, Philadelphia, PA 19104; and
| |
Collapse
|
5
|
Luu TC, Bhattacharya P, Chan WK. Cyclophilin-40 has a cellular role in the aryl hydrocarbon receptor signaling. FEBS Lett 2008; 582:3167-73. [PMID: 18708059 PMCID: PMC2630774 DOI: 10.1016/j.febslet.2008.08.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2008] [Revised: 07/28/2008] [Accepted: 08/05/2008] [Indexed: 11/16/2022]
Abstract
Cyclophilin-40 (CyP40) promotes the formation of the gel shift complex that contains the aryl hydrocarbon receptor (AhR), AhR nuclear translocator (Arnt) and dioxin response element (DRE) using baculovirus expressed proteins. Here we reported that CyP40 plays a role in the AhR signaling. When the CyP40 content in MCF-7 cells is reduced, up-regulation of cyp1a1 and cyp1b1 by 3-methylchloranthrene (3MC) is also reduced, suggesting that CyP40 is essential for maximal AhR function. The CyP40 region containing amino acids 186-215, but not the peptidyl-prolyl cis-trans isomerase and tetratricopeptide repeat domains, is essential for forming the AhR/Arnt/DRE complex. CyP40 is found in the cell nucleus after 3MC treatment and appears to promote the DRE binding form of the AhR/Arnt heterodimer.
Collapse
Affiliation(s)
- Tony C. Luu
- Department of Pharmaceutics and Medicinal Chemistry, Thomas J. Long School of Pharmacy and Health Sciences, University of the Pacific, Stockton, CA 95211
| | - Pompeya Bhattacharya
- Department of Pharmaceutics and Medicinal Chemistry, Thomas J. Long School of Pharmacy and Health Sciences, University of the Pacific, Stockton, CA 95211
| | - William K. Chan
- Department of Pharmaceutics and Medicinal Chemistry, Thomas J. Long School of Pharmacy and Health Sciences, University of the Pacific, Stockton, CA 95211
| |
Collapse
|
6
|
Periyasamy S, Warrier M, Tillekeratne MPM, Shou W, Sanchez ER. The immunophilin ligands cyclosporin A and FK506 suppress prostate cancer cell growth by androgen receptor-dependent and -independent mechanisms. Endocrinology 2007; 148:4716-26. [PMID: 17615153 PMCID: PMC2639775 DOI: 10.1210/en.2007-0145] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The androgen receptor (AR) contributes to growth of prostate cancer even under conditions of androgen ablation. Thus, new strategies to target AR activity are needed. The AR interacts with the immunophilin FK506-binding protein 52 (FKBP52), and studies in the FKBP52 knockout mouse have shown that this protein is essential to AR activity in the prostate. Therefore, we tested whether the immunophilin ligand FK506 affected AR activity in prostate cancer cell lines. We also tested the hypothesis that the AR interacts with another immunophilin, cyclophilin 40 (Cyp40), and is regulated by its cognate ligand cyclosporin A (CsA). We show that levels of FKBP52, FKBP51, Cyp40, and a related co-chaperone PP5 were much higher in prostate cancer cells lines [(LNCaP), PC-3, and DU145] compared with primary prostate cells, and that the AR of LNCaP cells can interact with Cyp40. In the absence of androgen, CsA caused inhibition of cell growth in the AR-positive LNCaP and AR-negative PC-3 and DU145 cell lines. Interestingly, FK506 only inhibited LNCaP cells, suggesting a dependence on the AR for this effect. Both CsA and FK506 inhibited growth without inducing apoptosis. In LNCaP cells, CsA completely blocked androgen-stimulated growth, whereas FK506 was partially effective. Further studies in LNCaP cells revealed that CsA and FK506 were able to block or attenuate several stages of AR signaling, including hormone binding, nuclear translocation, and activity at several AR-responsive reporter and endogenous genes. These findings provide the first evidence that CsA and FK506 can negatively modulate proliferation of prostate cells in vitro. Immunophilins may now serve as new targets to disrupt AR-mediated prostate cancer growth.
Collapse
Affiliation(s)
- Sumudra Periyasamy
- Department of Physiology and Pharmacology, University of Toledo College of Medicine, 3035 Arlington Avenue, Toledo, OH 43614-5804, USA.
| | | | | | | | | |
Collapse
|