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Shiravani Z, Mirshekari K, Larki MH, Shafiee N, Haghshenas MR, Ghaderi A, Fattahi MJ. Evaluation of the genetic diversity of KIR genes in patients with endometrial cancer. J Reprod Immunol 2024; 162:104217. [PMID: 38387251 DOI: 10.1016/j.jri.2024.104217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 01/01/2024] [Accepted: 02/13/2024] [Indexed: 02/24/2024]
Abstract
Endometrial cancer (EC) constitutes more than half of all genital cancers in women, with an increasing incidence in different countries. Natural killer cells (NK cells) are kinds of innate immune cells that are controlled by sets of receptors, such as killer cell Ig-like receptors (KIRs), which can inhibit or activate NK cells. In this study, we evaluated the diversity and genetic association of KIRs in confirmed cases of endometrial cancer compared to healthy controls. A total of 151 women with EC and 167 age/race-matched healthy controls were analyzed for KIR genes. Demographic and histopathologic data were gathered in questionnaires, and 16 KIR genes along with two variants of KIR2DS4 (KIR2DS4fl and KIR2DS4del), were genotyped by usingsequence specific primers-polymerase chain reaction (SSP-PCR) method. A comparison between cases and controls revealed that although there were not any significant differences in A haplotype associated genes and also the variants of KIR2DS4 (p >0.05), B haplotype associated genes such as KIR2DS2 and KIR2DL2 decreased significantly in EC patients in comparison with healthy controls (p=0.03 and p=0.01, respectively). Furthermore, we found that EC mostly developed in cases with the AA genotype; however, the carriers of Bx and C4T4 genotypes were less frequent in patients with EC. Our results revealed that KIR2DS2 and KIR2DL2, along with Bx and C4T4 genotypes, have a protective impact against developing endometrial cancer in Iranians.
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Affiliation(s)
- Zahra Shiravani
- Gynecology Oncology Division, Department of Obstetrics and Gynecology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Kimia Mirshekari
- Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Marjan Hematian Larki
- Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nargess Shafiee
- Gynecology Oncology Division, Department of Obstetrics and Gynecology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Reza Haghshenas
- Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Abbas Ghaderi
- Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Javad Fattahi
- Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
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2
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Roshan Zamir M, Ariafar A, Ghaderi A, Amirzargar A. The impact of killer cell immunoglobulin-like receptor (KIR) genes and human leukocyte antigen (HLA) class I ligands on predisposition or protection against prostate cancer. Immunobiology 2023; 228:152319. [PMID: 36599262 DOI: 10.1016/j.imbio.2022.152319] [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: 08/20/2022] [Revised: 12/02/2022] [Accepted: 12/24/2022] [Indexed: 12/28/2022]
Abstract
Natural killer (NK) cell development largely depends on killer cell immunoglobulin-like receptors (KIRs) and human leukocyte antigen (HLA) class I ligands. In the current study, we investigated the role of KIR genes, HLA ligands, and KIR-HLA combinations in vulnerability or protection against prostate cancer (PC). To analyze the frequency of 16 KIR genes and 5 HLA ligands, polymerase chain reaction with sequence-specific primers (PCR-SSP) was conducted in 150 PC patients and 200 healthy controls (CNs). KIR2DL5 (p = 0.0346, OR = 0.606, CI = 0.3916-0.9336), KIR2DS5 (p = 0.0227, OR = 0.587, CI = 0.3793-0.9139), HLA-B Bw4Thr80 (p = 0.0401, OR = 0.3552, CI = 0.1466-0.9059), HLA Bw4 (p = 0.0190, OR = 0.4744, CI = 0.2656-0.8521), and T4 gene cluster (including KIR2DS5-2DL5-3DS1-2DS1 genes) (p = 0.0194, OR = 0.5575, CI = 0.3449-0.8938) had a lower frequency in the PC patients compared to the control group. Moreover, a lower frequency of the genotypes contacting activating KIR (aKIR) > inhibitory KIR (iKIR) (p = 0.0298, OR = 0.5291, CI = 0.3056-0.9174) and iKIR + HLA < aKIR + HLA (p = 0.0183, OR = 0.2197, CI = 0.0672-0.7001) in PC patients compared to the CNs implies a protective role for aKIR genes. In the case of KIR-HLA interactions, we detected a significant association between KIR3DS1+ + HLA-A Bw4+ (p = 0.0113, OR = 0.5093, CI = 0.3124-0.8416) and KIR3DL1- + HLA-A Bw4+ (p = 0.0306, OR = 0.1153, CI = 0.0106-0.6537) combinations and resistance to prostate cancer. In contrast, the presence of KIR3DL1 in the absence of HLA-A Bw4 (p = 0.0040, OR = 2.00, CI = 1.264-3.111), HLA Bw4 (p = 0.0296, OR = 2.066, CI = 1.094-3.906), and HLA-Bw4Thr80 (p = 0.0071, OR = 2.505, CI = 1.319-4.703) genes probably predisposes to prostate cancer. Carrying the CxT4 genotype in PC patients was positively associated with lower tumor grades (Gleason score ≤ 6) (p = 0.0331, OR = 3.290, and CI = 1.181-8.395). Altogether, our data suggest a protective role for aKIRs, HLA-B Bw4Thr80, and HLA Bw4 ligands as well as a predisposing role for certain KIR-HLA combinations in prostate cancer. The findings of this study offer new insight into the population's risk assessment for prostate cancer in men. Additionally, predicting immunotherapy response based on KIR-HLA combinations aids in implementing the most effective therapeutic approach in the early stages of the disease.
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Affiliation(s)
- Mina Roshan Zamir
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Ali Ariafar
- Urology-Oncology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Urology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Abbas Ghaderi
- Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Aliakbar Amirzargar
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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3
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Berglund A, Matta J, Encarnación-Medina J, Ortiz-Sanchéz C, Dutil J, Linares R, Marcial J, Abreu-Takemura C, Moreno N, Putney R, Chakrabarti R, Lin HY, Yamoah K, Osterman CD, Wang L, Dhillon J, Kim Y, Kim SJ, Ruiz-Deya G, Park JY. Dysregulation of DNA Methylation and Epigenetic Clocks in Prostate Cancer among Puerto Rican Men. Biomolecules 2021; 12:2. [PMID: 35053153 PMCID: PMC8773891 DOI: 10.3390/biom12010002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 12/13/2021] [Accepted: 12/14/2021] [Indexed: 12/02/2022] Open
Abstract
In 2021, approximately 248,530 new prostate cancer (PCa) cases are estimated in the United States. Hispanic/Latinos (H/L) are the second largest racial/ethnic group in the US. The objective of this study was to assess DNA methylation patterns between aggressive and indolent PCa along with ancestry proportions in 49 H/L men from Puerto Rico (PR). Prostate tumors were classified as aggressive (n = 17) and indolent (n = 32) based on the Gleason score. Genomic DNA samples were extracted by macro-dissection. DNA methylation patterns were assessed using the Illumina EPIC DNA methylation platform. We used ADMIXTURE to estimate global ancestry proportions. We identified 892 differentially methylated genes in prostate tumor tissues as compared with normal tissues. Based on an epigenetic clock model, we observed that the total number of stem cell divisions (TNSC) and stem cell division rate (SCDR) were significantly higher in tumor than adjacent normal tissues. Regarding PCa aggressiveness, 141 differentially methylated genes were identified. Ancestry proportions of PR men were estimated as African, European, and Indigenous American; these were 24.1%, 64.2%, and 11.7%, respectively. The identification of DNA methylation profiles associated with risk and aggressiveness of PCa in PR H/L men will shed light on potential mechanisms contributing to PCa disparities in PR population.
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Affiliation(s)
- Anders Berglund
- Department of Biostatistics and Bioinformatics, H. Lee Moffitt Cancer Center, Tampa, FL 33612, USA; (A.B.); (R.P.); (Y.K.)
| | - Jaime Matta
- Department of Basic Sciences, Ponce Research Institute, School of Medicine, Ponce Health Sciences University, Ponce 00716-2347, Puerto Rico; (J.M.); (J.E.-M.); (C.O.-S.); (J.D.); (R.L.); (J.M.); (C.A.-T.); (C.D.O.); (G.R.-D.)
| | - Jarline Encarnación-Medina
- Department of Basic Sciences, Ponce Research Institute, School of Medicine, Ponce Health Sciences University, Ponce 00716-2347, Puerto Rico; (J.M.); (J.E.-M.); (C.O.-S.); (J.D.); (R.L.); (J.M.); (C.A.-T.); (C.D.O.); (G.R.-D.)
| | - Carmen Ortiz-Sanchéz
- Department of Basic Sciences, Ponce Research Institute, School of Medicine, Ponce Health Sciences University, Ponce 00716-2347, Puerto Rico; (J.M.); (J.E.-M.); (C.O.-S.); (J.D.); (R.L.); (J.M.); (C.A.-T.); (C.D.O.); (G.R.-D.)
| | - Julie Dutil
- Department of Basic Sciences, Ponce Research Institute, School of Medicine, Ponce Health Sciences University, Ponce 00716-2347, Puerto Rico; (J.M.); (J.E.-M.); (C.O.-S.); (J.D.); (R.L.); (J.M.); (C.A.-T.); (C.D.O.); (G.R.-D.)
| | - Raymond Linares
- Department of Basic Sciences, Ponce Research Institute, School of Medicine, Ponce Health Sciences University, Ponce 00716-2347, Puerto Rico; (J.M.); (J.E.-M.); (C.O.-S.); (J.D.); (R.L.); (J.M.); (C.A.-T.); (C.D.O.); (G.R.-D.)
| | - Joshua Marcial
- Department of Basic Sciences, Ponce Research Institute, School of Medicine, Ponce Health Sciences University, Ponce 00716-2347, Puerto Rico; (J.M.); (J.E.-M.); (C.O.-S.); (J.D.); (R.L.); (J.M.); (C.A.-T.); (C.D.O.); (G.R.-D.)
| | - Caren Abreu-Takemura
- Department of Basic Sciences, Ponce Research Institute, School of Medicine, Ponce Health Sciences University, Ponce 00716-2347, Puerto Rico; (J.M.); (J.E.-M.); (C.O.-S.); (J.D.); (R.L.); (J.M.); (C.A.-T.); (C.D.O.); (G.R.-D.)
| | - Natasha Moreno
- Department of Basic Sciences, Ponce Research Institute, School of Medicine, Ponce Health Sciences University, Ponce 00716-2347, Puerto Rico; (J.M.); (J.E.-M.); (C.O.-S.); (J.D.); (R.L.); (J.M.); (C.A.-T.); (C.D.O.); (G.R.-D.)
| | - Ryan Putney
- Department of Biostatistics and Bioinformatics, H. Lee Moffitt Cancer Center, Tampa, FL 33612, USA; (A.B.); (R.P.); (Y.K.)
| | - Ratna Chakrabarti
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, FL 32816, USA;
| | - Hui-Yi Lin
- Biostatistics Program, School of Public Health, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA;
| | - Kosj Yamoah
- Department of Radiation Oncology, H. Lee Moffitt Cancer Center, Tampa, FL 33612, USA;
| | - Carlos Diaz Osterman
- Department of Basic Sciences, Ponce Research Institute, School of Medicine, Ponce Health Sciences University, Ponce 00716-2347, Puerto Rico; (J.M.); (J.E.-M.); (C.O.-S.); (J.D.); (R.L.); (J.M.); (C.A.-T.); (C.D.O.); (G.R.-D.)
| | - Liang Wang
- Department of Molecular Biology, H. Lee Moffitt Cancer Center, Tampa, FL 33612, USA;
| | - Jasreman Dhillon
- Department of Pathology, H. Lee Moffitt Cancer Center, Tampa, FL 33612, USA;
| | - Youngchul Kim
- Department of Biostatistics and Bioinformatics, H. Lee Moffitt Cancer Center, Tampa, FL 33612, USA; (A.B.); (R.P.); (Y.K.)
| | - Seung Joon Kim
- Department of Internal Medicine, Catholic University of Korea, Seoul 06591, Korea;
| | - Gilberto Ruiz-Deya
- Department of Basic Sciences, Ponce Research Institute, School of Medicine, Ponce Health Sciences University, Ponce 00716-2347, Puerto Rico; (J.M.); (J.E.-M.); (C.O.-S.); (J.D.); (R.L.); (J.M.); (C.A.-T.); (C.D.O.); (G.R.-D.)
| | - Jong Y. Park
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center, Tampa, FL 33612, USA
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Dębska-Zielkowska J, Moszkowska G, Zieliński M, Zielińska H, Dukat-Mazurek A, Trzonkowski P, Stefańska K. KIR Receptors as Key Regulators of NK Cells Activity in Health and Disease. Cells 2021; 10:1777. [PMID: 34359951 PMCID: PMC8303609 DOI: 10.3390/cells10071777] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/05/2021] [Accepted: 07/09/2021] [Indexed: 12/12/2022] Open
Abstract
Natural killer (NK) cells are part of the cellular immune response. They target mainly cancer and virally infected cells. To a high extent cytotoxic activity of NK cells is regulated inter alia by signals from killer immunoglobulin-like receptors (KIR). The major histocompatibility complex (MHC) class I molecules are important ligands for KIR receptors. Binding of ligands (such as MHC I) to the KIR receptors has the important role in solid organ or hematopoietic cell transplantation. Of note, the understanding of the relationship between KIR and MHC receptors may contribute to the improvement of transplant results. Donor-recipient matching, which also includes the KIR typing, may improve monitoring, individualize the treatment and allow for predicting possible effects after transplantation, such as the graft-versus-leukemia effect (GvL) or viral re-infection. There are also less evident implications of KIR/MHC matching, such as with pregnancy and cancer. In this review, we present the most relevant literature reports on the importance of the KIR/MHC relationship on NK cell activity and hematopoietic stem cell transplantation (HSCT)/solid organ transplantation (SOT) effects, the risk of allograft rejection, protection against post-transplant cytomegalovirus (CMV) infection, pregnancy complications, cancer and adoptive therapy with NK cells.
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Affiliation(s)
- Joanna Dębska-Zielkowska
- Department of Medical Immunology, Medical University of Gdańsk, 80-210 Gdansk, Poland; (G.M.); (M.Z.); (H.Z.); (A.D.-M.); (P.T.)
| | - Grażyna Moszkowska
- Department of Medical Immunology, Medical University of Gdańsk, 80-210 Gdansk, Poland; (G.M.); (M.Z.); (H.Z.); (A.D.-M.); (P.T.)
| | - Maciej Zieliński
- Department of Medical Immunology, Medical University of Gdańsk, 80-210 Gdansk, Poland; (G.M.); (M.Z.); (H.Z.); (A.D.-M.); (P.T.)
| | - Hanna Zielińska
- Department of Medical Immunology, Medical University of Gdańsk, 80-210 Gdansk, Poland; (G.M.); (M.Z.); (H.Z.); (A.D.-M.); (P.T.)
| | - Anna Dukat-Mazurek
- Department of Medical Immunology, Medical University of Gdańsk, 80-210 Gdansk, Poland; (G.M.); (M.Z.); (H.Z.); (A.D.-M.); (P.T.)
| | - Piotr Trzonkowski
- Department of Medical Immunology, Medical University of Gdańsk, 80-210 Gdansk, Poland; (G.M.); (M.Z.); (H.Z.); (A.D.-M.); (P.T.)
| | - Katarzyna Stefańska
- Department of Obstetrics, Medical University of Gdańsk, 80-214 Gdansk, Poland;
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He Y, Bunn PA, Zhou C, Chan D. KIR 2D (L1, L3, L4, S4) and KIR 3DL1 protein expression in non-small cell lung cancer. Oncotarget 2018; 7:82104-82111. [PMID: 27893413 PMCID: PMC5347678 DOI: 10.18632/oncotarget.13486] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 11/07/2016] [Indexed: 02/06/2023] Open
Abstract
Background Nature killer (NK) cells are the immune system's first line of defense against both viral infections and tumors. Killer cell immunoglobulin-like receptors (KIRs) are associated with susceptibility to different types of cancers. We investigated KIR 2D (L1, L3, L4, S4) and KIR 3DL1 protein expression and their association with survival in non-small cell lung cancer (NSCLC). Methods The expression of KIR 2D (L1, L3, L4, S4) (BC032422/ ADQ31987/ NP_002246/ NP_036446, ABCAM) and KIR 3DL1 (AA 1-444, ABCAM) protein was assessed by immunohistochemistry (IHC) in 62 NSCLC patients. Results KIR 2D (L1, L3, L4, S4) and KIR 3DL1 were expressed both on NSCLC tumor cells and tumor infiltrating lymphocytes (TILs). Fourteen samples (22.6%) stained positive for KIR 2D (L1, L3, L4, S4) on the tumor cells, and 10 (16.1%) had positive expression on the TILs. Thirty-three samples (53.2%) stained positive for KIR 3DL1 on the tumor cells, and 31 (50.0%) had positive expression on the TILs. Patients with negative KIR 2D (L1, L3, L4, S4) expression on tumor cells or TILs had longer overall survival (OS) than patients who are KIR 2D (L1, L3, L4, S4) positive on tumor cells (40.70 weeks, 95% CI 24.76-56.65 vs. 7.10 weeks, 95% CI 0.00-19.38, P = 0.014) or TILs (40.70 weeks, 95% CI 24.05-57.35 vs. 3.90 weeks, 95% CI 0.00-9.17, P < 0.001). Likewise, longer OS was significantly correlated with negative expression of KIR 3DL1 on tumor cells (62.30 weeks, 95% CI 0.00-177.37 vs. 13.10 weeks, 95% CI 3.42-22.78, P < 0.001) or TILs (62.30 weeks, 95% CI 0.00-152.05 vs. 12.10 weeks, 95% CI 2.61-21.59, P < 0.001). Cox regression analysis showed that KIR 2D (L1, L3, L4, S4) on TILs was correlated with OS (P = 0.032, Odds Ratio 2.628 95%CI 1.089-6.340). Conclusions KIR 2D (L1, L3, L4, S4) and KIR 3DL1 expression was correlated with poor prognosis in NSCLC patients.
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Affiliation(s)
- Yayi He
- Department of Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Paul A Bunn
- Department of Medicine, Division of Medical Oncology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Caicun Zhou
- Department of Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Dan Chan
- Department of Medicine, Division of Medical Oncology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
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Burugu S, Dancsok AR, Nielsen TO. Emerging targets in cancer immunotherapy. Semin Cancer Biol 2017; 52:39-52. [PMID: 28987965 DOI: 10.1016/j.semcancer.2017.10.001] [Citation(s) in RCA: 213] [Impact Index Per Article: 30.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 09/29/2017] [Accepted: 10/01/2017] [Indexed: 12/12/2022]
Abstract
The first generation of immune checkpoint inhibitors (anti-CTLA-4 and anti-PD-1/PD-L1) targeted natural immune homeostasis pathways, co-opted by cancers, to drive anti-tumor immune responses. These agents led to unprecedented results in patients with previously incurable metastatic disease and may become first-line therapies for some advanced cancers. However, these agents are efficacious in only a minority of patients. Newer strategies are becoming available that target additional immunomodulatory mechanisms to activate patients' own anti-tumor immune responses. Herein, we present a succinct summary of emerging immune targets with reported pre-clinical efficacy that have progressed to active investigation in clinical trials. These emerging targets include co-inhibitory and co-stimulatory markers of the innate and adaptive immune system. In this review, we discuss: 1) T lymphocyte markers: Lymphocyte Activation Gene 3 [LAG-3], T-cell Immunoglobulin- and Mucin-domain-containing molecule 3 [TIM-3], V-domain containing Ig Suppressor of T cell Activation [VISTA], T cell ImmunoGlobulin and ITIM domain [TIGIT], B7-H3, Inducible T-cell Co-stimulator [ICOS/ICOS-L], CD27/CD70, and Glucocorticoid-Induced TNF Receptor [GITR]; 2) macrophage markers: CD47/Signal-Regulatory Protein alpha [SIRPα] and Indoleamine-2,3-Dioxygenase [IDO]; and 3) natural killer cell markers: CD94/NKG2A and the Killer Immunoglobulin-like receptor [KIR] family. Finally, we briefly highlight combination strategies and potential biomarkers of response and resistance to these cancer immunotherapies.
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Affiliation(s)
- Samantha Burugu
- Department of Pathology & Laboratory Medicine, University of British Columbia Hospital, Koerner Pavilion, #G-227 2211 Wesbrook Mall, Vancouver, BC V6T 2B5, Canada
| | - Amanda R Dancsok
- Department of Pathology & Laboratory Medicine, University of British Columbia Hospital, Koerner Pavilion, #G-227 2211 Wesbrook Mall, Vancouver, BC V6T 2B5, Canada
| | - Torsten O Nielsen
- Department of Pathology & Laboratory Medicine, University of British Columbia Hospital, Koerner Pavilion, #G-227 2211 Wesbrook Mall, Vancouver, BC V6T 2B5, Canada.
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Zhang XH, Lian XD, Dai ZX, Zheng HY, Chen X, Zheng YT. α3-Deletion Isoform of HLA-A11 Modulates Cytotoxicity of NK Cells: Correlations with HIV-1 Infection of Cells. THE JOURNAL OF IMMUNOLOGY 2017; 199:2030-2042. [PMID: 28784847 DOI: 10.4049/jimmunol.1602183] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 07/14/2017] [Indexed: 01/16/2023]
Abstract
Alternative splicing occurs frequently in many genes, especially those involved in immunity. Unfortunately, the functions of many alternatively spliced molecules from immunologically relevant genes remain unknown. Classical HLA-I molecules are expressed on almost all nucleated cells and play a pivotal role in both innate and adaptive immunity. Although splice variants of HLA-I genes have been reported, the details of their functions have not been reported. In the current study, we determined the characteristics, expression, and function of a novel splice variant of HLA-A11 named HLA-A11svE4 HLA-A11svE4 is located on the cell surface without β2-microglobulin (β2m). Additionally, HLA-A11svE4 forms homodimers as well as heterodimers with HLA-A open conformers, instead of combining with β2m. Moreover, HLA-A11svE4 inhibits the activation of NK cells to protect target cells. Compared with β2m and HLA-A11, the heterodimer of HLA-A11svE4 and HLA-A11 protected target cells from lysis by NK cells more effectively. Furthermore, HLA-AsvE4 expression was upregulated by HIV-1 in vivo and by HSV, CMV, and hepatitis B virus in vitro. In addition, our findings indicated that HLA-A11svE4 molecules were functional in activating CD8+ T cells through Ag presentation. Taken together, these results suggested that HLA-A11svE4 can homodimerize and form a novel heterodimeric complex with HLA-A11 open conformers. Furthermore, the data are consistent with HLA-A11svE4 playing a role in the immune escape of HIV-1.
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Affiliation(s)
- Xi-He Zhang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming 650204, China; and
| | - Xiao-Dong Lian
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming 650204, China; and
| | - Zheng-Xi Dai
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
| | - Hong-Yi Zheng
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China.,School of Life Sciences, University of Science and Technology of China, Hefei 230026, China
| | - Xin Chen
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming 650204, China; and
| | - Yong-Tang Zheng
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China;
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8
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Reduced frequency of two activating KIR genes in patients with sepsis. Hum Immunol 2017; 78:363-369. [PMID: 28213050 DOI: 10.1016/j.humimm.2017.02.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 02/07/2017] [Accepted: 02/11/2017] [Indexed: 12/20/2022]
Abstract
Natural killer (NK) cell activity is regulated by activating and inhibitory signals transduced by killer cell immunoglobulin-like receptors (KIR). Diversity in KIR gene repertoire among individuals may affect disease outcome. Sepsis development and severity may be influenced by genetic factors affecting the immune response. Here, we examined sixteen KIR genes and their human leucocyte antigen (HLA) class I ligands in critical patients, aiming to identify patterns that could be associated with sepsis. Male and female patients (ages ranging between 14 and 94years-old) were included. DNA samples from 211 patients with sepsis and 60 controls (critical care patients with no sepsis) collected between 2004 and 2010 were included and genotyped for KIR genes using the polymerase chain reaction method with sequence-specific oligonucleotide (PCR-SSO), and for HLA genes using the polymerase chain reaction method with sequence-specific primers (PCR-SSP). The frequencies of activating KIR2DS1 and KIR3DS1 in sepsis patients when compared to controls were 41.23% versus 55.00% and 36.49% versus 51.67% (p=0.077 and 0.037 respectively before Bonferroni correction). These results indicate that activating KIR genes 2DS1 and 3DS1 may more prevalent in critical patients without sepsis than in patients with sepsis, suggesting a potential protective role of activating KIR genes in sepsis.
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Portela P, Merzoni J, Lindenau JD, Damin DC, Wilson TJ, Roesler R, Schwartsmann G, Jobim LF, Jobim M. KIR genes and HLA class I ligands in a Caucasian Brazilian population with colorectal cancer. Hum Immunol 2017; 78:263-268. [PMID: 28088355 DOI: 10.1016/j.humimm.2017.01.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 12/31/2016] [Accepted: 01/08/2017] [Indexed: 12/22/2022]
Abstract
Colorectal cancer (CRC) can occur anywhere in the colon or rectum and represents the third most common cancer in the world in both sexes. Natural killer cells (NK) are part of the innate immune system recognizing class I HLA molecules on target cells through their membrane receptors, called killer cell immunoglobulin-like receptors (KIR). The aim of our study was to evaluate the association between the KIR genes and HLA ligands in patients with colorectal cancer and healthy controls. We examined the polymorphism of 16 KIR genes and their HLA ligands in 154 caucasoid CRC patients and 216 controls. When both groups were compared, no significant differences were found for HLA ligands and KIR genes after Bonferroni correction. However, the Bx haplotypes (heterozygous and homozygous for the haplotype B) were more frequent in controls, when compared with patients. These findings suggest that individuals with Bx haplotypes could have some protection to colorectal cancer. The hypothesis is not related with the presence of a special KIR gene and HLA ligand related to the disease, but to the presence of several activating genes in the individuals with no better action of one in relation to other. Further studies to confirm this observation are warranted.
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Affiliation(s)
- Pâmela Portela
- Department of Immunology, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil; Cancer and Neurobiology Laboratory, Experimental Research Center, Clinical Hospital (CPE-HCPA), Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
| | - Joice Merzoni
- Department of Immunology, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Juliana D Lindenau
- Department of Genetic, Institute of Biosciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Daniel C Damin
- Division of Coloproctology, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Timothy John Wilson
- Department of Immunology, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Rafael Roesler
- Cancer and Neurobiology Laboratory, Experimental Research Center, Clinical Hospital (CPE-HCPA), Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil; Department of Pharmacology, Institute for Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Gilberto Schwartsmann
- Cancer and Neurobiology Laboratory, Experimental Research Center, Clinical Hospital (CPE-HCPA), Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil; Department of Pharmacology, Institute for Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil; Department of Internal Medicine, School of Medicine, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Luiz Fernando Jobim
- Department of Immunology, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil; Department of Internal Medicine, School of Medicine, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Mariana Jobim
- Department of Immunology, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
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Augusto DG. The Impact of KIR Polymorphism on the Risk of Developing Cancer: Not as Strong as Imagined? Front Genet 2016; 7:121. [PMID: 27446203 PMCID: PMC4923111 DOI: 10.3389/fgene.2016.00121] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 06/14/2016] [Indexed: 11/13/2022] Open
Abstract
The polymorphism of killer cell immunoglobulin-like receptors (KIR) has been associated with several diseases, including infection, autoimmunity and cancer. KIR molecules are a family of receptors expressed on the surface of natural killer cells (NK), frontline defense of innate immunity against microorganisms and neoplastic cells. Some studies have shown conflicting results concerning the role that KIR polymorphism plays in tumor susceptibility, particularly in leukemia and lymphoma. Interestingly, the presence of HLA ligands is sometimes strongly associated with several types of cancer and apparently is not related with their interaction with KIR. This manuscript briefly reviews the uncommon polymorphism of KIR and critically summarizes the recent findings with regards of the importance of KIR variation for cancer susceptibility.
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Affiliation(s)
- Danillo G Augusto
- Laboratório de Genética Molecular Humana, Departamento de Genética, Universidade Federal do Paraná Curitiba, Brazil
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Jobim MR, Jobim M, Salim PH, Portela P, Jobim LF, Leistner-Segal S, Bittelbrunn AC, Menke CH, Biazús JV, Roesler R, Schwartsmann G. Analysis of KIR gene frequencies and HLA class I genotypes in breast cancer and control group. Hum Immunol 2013; 74:1130-3. [PMID: 23792055 DOI: 10.1016/j.humimm.2013.06.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Revised: 04/17/2013] [Accepted: 06/07/2013] [Indexed: 12/26/2022]
Abstract
Breast cancer is the main cause of cancer-related death among women, with a 0.5% increase in incidence per year. Natural killer cells (NK) are part of the innate immune system recognizing class I HLA molecules on target cells through their membrane receptors, called killer cell immunoglobulin-like receptors (KIR). The aim of our study was to evaluate the association between the KIR genes and HLA alleles in patients with breast cancer and healthy controls. Two hundred thirty patients with breast cancer and 272 healthy controls were typed for HLA class I and KIR genes by PCR-SSO. When both groups were compared, the presence of inhibitory KIR2DL2 receptors was significantly higher in breast cancer patients than in healthy controls. No significant differences were found for HLA-C2 and HLA-Bw4. However, a higher frequency of HLA-C1 in breast cancer patients was observed. These findings suggest a potential role for the KIR gene system in breast cancer. Further studies to confirm this observation are warranted.
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Affiliation(s)
- Maria Regina Jobim
- Department of Immunology, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.
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