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Zhu M, Li X, Cheng X, Yi X, Ye F, Li X, Hu Z, Zhang L, Nie J, Li X. Association of the tissue infiltrated and peripheral blood immune cell subsets with response to radiotherapy for rectal cancer. BMC Med Genomics 2022; 15:107. [PMID: 35534879 PMCID: PMC9082952 DOI: 10.1186/s12920-022-01252-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 04/26/2022] [Indexed: 11/13/2022] Open
Abstract
Background Tumor microenvironment plays pivotal roles in carcinogenesis, cancer development and metastasis. Composition of cancer immune cell subsets can be inferred by deconvolution of gene expression profile accurately. Compositions of the cell types in cancer microenvironment including cancer infiltrating immune and stromal cells have been reported to be associated with the cancer outcomes markers for cancer prognosis. However, rare studies have been reported on their association with the response to preoperative radiotherapy for rectal cancer. Methods In this paper, we deconvoluted the immune/stromal cell composition from the gene expression profiles. We compared the composition of immune/stromal cell types in the RT responsive versus nonresponsive for rectal cancer. We also compared the peripheral blood immune cell subset composition in the stable diseases versus progressive diseases of rectal cancer patients with fluorescence-activated cell sorting from our institution. Results Compared with the non-responsive group, the responsive group showed higher proportions of CD4+ T cell (0.1378 ± 0.0368 vs. 0.1071 ± 0.0373, p = 0.0215), adipocytes, T cells CD4 memory resting, and lower proportions of CD8+ T cell (0.1798 ± 0.0217 vs. 0.2104 ± 0.0415, p = 0.0239), macrophages M2, and preadipocytes in their cancer tissue. The responsive patients showed a higher ratio of CD4+/CD8+ T cell proportions (mean 0.7869 vs. 0.5564, p = 0.0210). Consistently, the peripheral blood dataset showed higher proportion of CD4+ T cells and higher ratio of CD4+/CD8+ T cells, and lower proportion of CD8+ T cells for favorable prognosis. We validated these results with a pooled dataset of GSE3493 and GSE35452, and more peripheral blood data, respectively. Finally, we imported these eight cell features including eosinophils and macrophage M1 to Support Vector Machines and could predict the pre-radiotherapy responsive versus non-responsive with an accuracy of 76%, ROC AUC 0.77, 95% confidential interval of 0.632–0.857, better than the gene signatures. Conclusions Our results showed that the proportions of tumor-infiltrating subsets and peripheral blood immune cell subsets can be important immune cell markers and treatment targets for outcomes of radiotherapy for rectal cancer. Supplementary Information The online version contains supplementary material available at 10.1186/s12920-022-01252-6.
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Affiliation(s)
- Min Zhu
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, 350 Shushanhu Road, Hefei, 230031, People's Republic of China.,Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, 230031, People's Republic of China
| | - Xingjie Li
- Institute of Physical Science and Information Technology, Anhui University, 111 Jiulong Road, Hefei, 230601, People's Republic of China
| | - Xu Cheng
- Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, 230031, People's Republic of China
| | - Xingxu Yi
- Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, 230031, People's Republic of China
| | - Fang Ye
- Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, 230031, People's Republic of China
| | - Xiaolai Li
- Hefei Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, 350 Shushanhu Road, Hefei, 230031, People's Republic of China
| | - Zongtao Hu
- Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, 230031, People's Republic of China
| | - Liwei Zhang
- Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, 230031, People's Republic of China.
| | - Jinfu Nie
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, 350 Shushanhu Road, Hefei, 230031, People's Republic of China. .,Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, 230031, People's Republic of China.
| | - Xueling Li
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, 350 Shushanhu Road, Hefei, 230031, People's Republic of China. .,Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, 230031, People's Republic of China.
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Gascón M, Isla D, Cruellas M, Gálvez EM, Lastra R, Ocáriz M, Paño JR, Ramírez A, Sesma A, Torres-Ramón I, Yubero A, Pardo J, Martínez-Lostao L. Intratumoral Versus Circulating Lymphoid Cells as Predictive Biomarkers in Lung Cancer Patients Treated with Immune Checkpoint Inhibitors: Is the Easiest Path the Best One? Cells 2020; 9:cells9061525. [PMID: 32580514 PMCID: PMC7348938 DOI: 10.3390/cells9061525] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/18/2020] [Accepted: 06/19/2020] [Indexed: 12/14/2022] Open
Abstract
The molecular and cell determinants that modulate immune checkpoint (ICI) efficacy in lung cancer are still not well understood. However, there is a necessity to select those patients that will most benefit from these new treatments. Recent studies suggest the presence and/or the relative balance of specific lymphoid cells in the tumor microenvironment (TEM) including the T cell (activated, memory, and regulatory) and NK cell (CD56dim/bright) subsets, and correlate with a better response to ICI. The analyses of these cell subsets in peripheral blood, as a more accessible and homogeneous sample, might facilitate clinical decisions concerning fast prediction of ICI efficacy. Despite recent studies suggesting that lymphoid circulating cells might correlate with ICI efficacy and toxicity, more analyses and investigation are required to confirm if circulating lymphoid cells are a relevant picture of the lung TME and could be instrumental as ICI response biomarkers. This short review is aimed to discuss the recent advances in this fast-growing field.
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Affiliation(s)
- Marta Gascón
- Medical Oncology Department, University Hospital Lozano Blesa, 50009 Zaragoza, Spain; (D.I.); (M.C.); (R.L.); (M.O.); (A.S.); (I.T.-R.); (A.Y.)
- Aragon Health Research Institute (IIS Aragón), 50009 Zaragoza, Spain; (J.R.P.); (J.P.); (L.M.-L.)
- Correspondence:
| | - Dolores Isla
- Medical Oncology Department, University Hospital Lozano Blesa, 50009 Zaragoza, Spain; (D.I.); (M.C.); (R.L.); (M.O.); (A.S.); (I.T.-R.); (A.Y.)
- Aragon Health Research Institute (IIS Aragón), 50009 Zaragoza, Spain; (J.R.P.); (J.P.); (L.M.-L.)
| | - Mara Cruellas
- Medical Oncology Department, University Hospital Lozano Blesa, 50009 Zaragoza, Spain; (D.I.); (M.C.); (R.L.); (M.O.); (A.S.); (I.T.-R.); (A.Y.)
- Aragon Health Research Institute (IIS Aragón), 50009 Zaragoza, Spain; (J.R.P.); (J.P.); (L.M.-L.)
| | - Eva M. Gálvez
- Carbochemical Institute (ICB-CSIC), Miguel Luesma 4, 50018 Zaragoza, Spain;
| | - Rodrigo Lastra
- Medical Oncology Department, University Hospital Lozano Blesa, 50009 Zaragoza, Spain; (D.I.); (M.C.); (R.L.); (M.O.); (A.S.); (I.T.-R.); (A.Y.)
- Aragon Health Research Institute (IIS Aragón), 50009 Zaragoza, Spain; (J.R.P.); (J.P.); (L.M.-L.)
| | - Maitane Ocáriz
- Medical Oncology Department, University Hospital Lozano Blesa, 50009 Zaragoza, Spain; (D.I.); (M.C.); (R.L.); (M.O.); (A.S.); (I.T.-R.); (A.Y.)
- Aragon Health Research Institute (IIS Aragón), 50009 Zaragoza, Spain; (J.R.P.); (J.P.); (L.M.-L.)
| | - José Ramón Paño
- Aragon Health Research Institute (IIS Aragón), 50009 Zaragoza, Spain; (J.R.P.); (J.P.); (L.M.-L.)
- Infectious Disease Department, University Hospital Lozano Blesa, 50009 Zaragoza, Spain
| | - Ariel Ramírez
- Nanotoxicology and Immunotoxicology Unit (IIS Aragón), 50009 Zaragoza, Spain;
| | - Andrea Sesma
- Medical Oncology Department, University Hospital Lozano Blesa, 50009 Zaragoza, Spain; (D.I.); (M.C.); (R.L.); (M.O.); (A.S.); (I.T.-R.); (A.Y.)
- Aragon Health Research Institute (IIS Aragón), 50009 Zaragoza, Spain; (J.R.P.); (J.P.); (L.M.-L.)
| | - Irene Torres-Ramón
- Medical Oncology Department, University Hospital Lozano Blesa, 50009 Zaragoza, Spain; (D.I.); (M.C.); (R.L.); (M.O.); (A.S.); (I.T.-R.); (A.Y.)
- Aragon Health Research Institute (IIS Aragón), 50009 Zaragoza, Spain; (J.R.P.); (J.P.); (L.M.-L.)
| | - Alfonso Yubero
- Medical Oncology Department, University Hospital Lozano Blesa, 50009 Zaragoza, Spain; (D.I.); (M.C.); (R.L.); (M.O.); (A.S.); (I.T.-R.); (A.Y.)
- Aragon Health Research Institute (IIS Aragón), 50009 Zaragoza, Spain; (J.R.P.); (J.P.); (L.M.-L.)
| | - Julián Pardo
- Aragon Health Research Institute (IIS Aragón), 50009 Zaragoza, Spain; (J.R.P.); (J.P.); (L.M.-L.)
- ARAID Foundation (IIS Aragón), 50009 Zaragoza, Spain
- Microbiology, Preventive Medicine and Public Health Department, Medicine, University of Zaragoza, 50009 Zaragoza, Spain
- Biomedical Research Center in Bioengineering, Biomaterials and Nanomedicine Network (CIBER-BBN), 28029 Madrid, Spain
| | - Luis Martínez-Lostao
- Aragon Health Research Institute (IIS Aragón), 50009 Zaragoza, Spain; (J.R.P.); (J.P.); (L.M.-L.)
- Immunology Department, University Hospital Lozano Blesa, 50009 Zaragoza, Spain
- Department of Microbiology, Pediatrics, Radiology and Public Health, University of Zaragoza, 50009 Zaragoza, Spain
- Aragon Nanoscience Institute, 50018 Zaragoza, Spain
- Aragon Materials Science Institute, 50009 Zaragoza, Spain
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Decoding Immune Heterogeneity of Triple Negative Breast Cancer and Its Association with Systemic Inflammation. Cancers (Basel) 2019; 11:cancers11070911. [PMID: 31261762 PMCID: PMC6678607 DOI: 10.3390/cancers11070911] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 06/21/2019] [Accepted: 06/25/2019] [Indexed: 02/07/2023] Open
Abstract
Triple negative breast cancer (TNBC) is an aggressive subtype with limited therapeutic options. New opportunities are emerging from current comprehensive characterization of tumor immune infiltration and fitness. Therefore, effectiveness of current chemotherapies and novel immunotherapies are partially dictated by host inflammatory and immune profiles. However, further progress in breast cancer immuno-oncology is required to reach a detailed awareness of the immune infiltrate landscape and to determine additional reliable and easily detectable biomarkers. In this study, by analyzing gene expression profiles of 54 TNBC cases we identified three TNBC clusters displaying unique immune features. Deep molecular characterization of immune cells cytolytic-activity and tumor-inflammation status reveled variability in the local composition of the immune infiltrate in the TNBC clusters, reconciled by tumor-infiltrating lymphocytes counts. Platelet-to-lymphocyte ratio (PLR), a blood systemic parameter of inflammation evaluated using pre-surgical blood test data, resulted negatively correlated with local tumoral cytolytic activity and T cell–inflamed microenvironment, whereas tumor aggressiveness score signature positively correlated with PLR values. These data highlighted that systemic inflammation parameters may represent reliable and informative markers of the local immune tumor microenvironment in TNBC patients and could be exploited to decipher tumor infiltrate properties and consequently to select the most appropriate therapies.
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Stepanenko AA, Chekhonin VP. Recent Advances in Oncolytic Virotherapy and Immunotherapy for Glioblastoma: A Glimmer of Hope in the Search for an Effective Therapy? Cancers (Basel) 2018; 10:E492. [PMID: 30563098 PMCID: PMC6316815 DOI: 10.3390/cancers10120492] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 11/19/2018] [Accepted: 11/29/2018] [Indexed: 02/06/2023] Open
Abstract
To date, no targeted drugs, antibodies or combinations of chemotherapeutics have been demonstrated to be more efficient than temozolomide, or to increase efficacy of standard therapy (surgery, radiotherapy, temozolomide, steroid dexamethasone). According to recent phase III trials, standard therapy may ensure a median overall survival of up to 18⁻20 months for adult patients with newly diagnosed glioblastoma. These data explain a failure of positive non-controlled phase II trials to predict positive phase III trials and should result in revision of the landmark Stupp trial as a historical control for median overall survival in non-controlled trials. A high rate of failures in clinical trials and a lack of effective chemotherapy on the horizon fostered the development of conceptually distinct therapeutic approaches: dendritic cell/peptide immunotherapy, chimeric antigen receptor (CAR) T-cell therapy and oncolytic virotherapy. Recent early phase trials with the recombinant adenovirus DNX-2401 (Ad5-delta24-RGD), polio-rhinovirus chimera (PVSRIPO), parvovirus H-1 (ParvOryx), Toca 511 retroviral vector with 5-fluorocytosine, heat shock protein-peptide complex-96 (HSPPC-96) and dendritic cell vaccines, including DCVax-L vaccine, demonstrated that subsets of patients with glioblastoma/glioma may benefit from oncolytic virotherapy/immunotherapy (>3 years of survival after treatment). However, large controlled trials are required to prove efficacy of next-generation immunotherapeutics and oncolytic vectors.
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Affiliation(s)
- Aleksei A Stepanenko
- Department of Fundamental and Applied Neurobiology, V. P. Serbsky National Medical Research Center for Psychiatry and Narcology, the Ministry of Health of the Russian Federation, Kropotkinsky lane 23, 119034 Moscow, Russia.
| | - Vladimir P Chekhonin
- Department of Fundamental and Applied Neurobiology, V. P. Serbsky National Medical Research Center for Psychiatry and Narcology, the Ministry of Health of the Russian Federation, Kropotkinsky lane 23, 119034 Moscow, Russia.
- Department of Medical Nanobiotechnologies, Medico-Biological Faculty, N. I. Pirogov Russian National Research Medical University, the Ministry of Health of the Russian Federation, Ostrovitianov str. 1, 117997 Moscow, Russia.
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Mazzaschi G, Facchinetti F, Missale G, Canetti D, Madeddu D, Zecca A, Veneziani M, Gelsomino F, Goldoni M, Buti S, Bordi P, Aversa F, Ardizzoni A, Quaini F, Tiseo M. The circulating pool of functionally competent NK and CD8+ cells predicts the outcome of anti-PD1 treatment in advanced NSCLC. Lung Cancer 2018; 127:153-163. [PMID: 30642544 DOI: 10.1016/j.lungcan.2018.11.038] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 11/26/2018] [Accepted: 11/28/2018] [Indexed: 12/25/2022]
Abstract
INTRODUCTION A prospective investigation of the circulating immune profile in NSCLC patients receiving nivolumab was performed to identify potentially predictive parameters. METHODS Flow Cytometry of peripheral blood (PB) CD3+, CD8+, CD4+, NK, Treg and MDSCs was prospectively performed in 31 consecutive advanced NSCLC patients at baseline (T0) and after 2 (T1) and 4 (T2) cycles of bi-weekly nivolumab. Functional molecules (PD-1, CD3ζ, Granzyme B, Perforin), cell proliferation (Ki67) and NK receptors (NKG2 A, NKG2D, NKp30) were also explored. The immunohistochemical evaluation of PD-L1 and TILs was restricted to available tumor biopsies. Tissue and circulating parameters were correlated to clinico-pathological features and treatment outcomes. RESULTS KRAS mutations, active smoking, COPD and steroid treatment conditioned a different distribution of circulating phenotypes. At baseline, clinical benefit (CB, n = 19) group displayed higher number of phenotypically active NK and PD-1+CD8+ cells (p < 0.01) compared to non-responders (NR, n = 12). Prolonged survival outcomes (p < 0.01) were recorded in cases with high baseline circulating NK and PD-1+CD8+ cells. At tissue level, low PD-1 expression in CD8 + TILs was a positive prognostic feature (p < 0.001). Strikingly, high circulating NK and PD-1+CD8+ cells combined with low PD-1/CD8+ ratio in TILs characterized a privileged context able to provide a significantly prolonged (p < 0.01) progression-free survival (PFS). During PD-1 blockade, NKs progressively raised in CB while declined in NR (p < 0.05) and this phenomenon was counterbalanced by parallel changes in Treg. CONCLUSION The functional pool of circulating NKs associated with a divergent PD-1 expression in blood and tissue CD8+ lymphocytes portrays an immune profile predictive of anti-PD1 treatment efficacy.
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Affiliation(s)
- Giulia Mazzaschi
- Department of Medicine and Surgery, University of Parma, Medical Oncology Unit, University Hospital of Parma, Via Gramsci 14, 43126, Parma, Italy.
| | - Francesco Facchinetti
- Medical Oncology Unit, University Hospital of Parma, Via Gramsci 14, 43126, Parma, Italy.
| | - Gabriele Missale
- Infectious Diseases and Hepatology Unit, Laboratory of Viral Immunopathology, University Hospital of Parma, Via Gramsci 14, 43126, Parma, Italy.
| | - Diana Canetti
- Infectious Diseases and Hepatology Unit, Laboratory of Viral Immunopathology, University Hospital of Parma, Via Gramsci 14, 43126, Parma, Italy.
| | - Denise Madeddu
- Department of Medicine and Surgery, Hematology and Bone Marrow Transplantation, University Hospital of Parma, Via Gramsci 14, 43126, Parma, Italy.
| | - Alessandra Zecca
- Infectious Diseases and Hepatology Unit, Laboratory of Viral Immunopathology, University Hospital of Parma, Via Gramsci 14, 43126, Parma, Italy.
| | - Michele Veneziani
- Medical Oncology Unit, University Hospital of Parma, Via Gramsci 14, 43126, Parma, Italy.
| | - Francesco Gelsomino
- Medical Oncology Unit, Sant'Orsola-Malpighi University Hospital, Via Pietro Albertoni, 15, 40138, Bologna, Italy.
| | - Matteo Goldoni
- Department of Medicine and Surgery, Medical Statistics, University Hospital of Parma, Via Gramsci 14, 43126 Parma, Italy.
| | - Sebastiano Buti
- Medical Oncology Unit, University Hospital of Parma, Via Gramsci 14, 43126, Parma, Italy.
| | - Paola Bordi
- Medical Oncology Unit, University Hospital of Parma, Via Gramsci 14, 43126, Parma, Italy.
| | - Franco Aversa
- Department of Medicine and Surgery, Hematology and Bone Marrow Transplantation, University Hospital of Parma, Via Gramsci 14, 43126, Parma, Italy.
| | - Andrea Ardizzoni
- Medical Oncology Unit, Sant'Orsola-Malpighi University Hospital, Via Pietro Albertoni, 15, 40138, Bologna, Italy.
| | - Federico Quaini
- Department of Medicine and Surgery, Hematology and Bone Marrow Transplantation, University Hospital of Parma, Via Gramsci 14, 43126, Parma, Italy.
| | - Marcello Tiseo
- Department of Medicine and Surgery, University of Parma, Medical Oncology Unit, University Hospital of Parma, Via Gramsci 14, 43126, Parma, Italy; Medical Oncology Unit, University Hospital of Parma, Via Gramsci 14, 43126, Parma, Italy.
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The neutrophil-to-lymphocyte and platelet-to-lymphocyte ratios predict efficacy of platinum-based chemotherapy in patients with metastatic triple negative breast cancer. Sci Rep 2018; 8:8703. [PMID: 29880896 PMCID: PMC5992181 DOI: 10.1038/s41598-018-27075-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 04/16/2018] [Indexed: 12/31/2022] Open
Abstract
Platinum salts are active against metastatic triple negative breast cancer (mTNBC), and biomarkers to predict their effectiveness are urgently needed. In recent years, the neutrophil-to-lymphocyte ratio (NLR) and the platelet-to-lymphocyte ratio (PLR) have emerged as prognostic biomarkers in many malignancies, but their predictive role in platinum-treated mTNBC patients remains unexplored. We performed a retrospective, single centre study to evaluate the association between baseline NLR or PLR and progression free survival (PFS) of mTNBC patients treated with platinum-based chemotherapy. As a control population, we analysed data from patients with hormone receptor-positive HER2-negative (HR+ HER2−) metastatic breast cancer. Among 57 mTNBC patients treated with the carboplatin-paclitaxel or carboplatin-gemcitabine combination, high NLR and PLR were associated with significantly lower PFS at both univariate and multivariable analysis. Conversely, we did not find a significant association between NLR or PLR and the PFS of 148 patients in the control population. Our findings suggest that the NLR and PLR are predictive of benefit from platinum-containing chemotherapy specifically in mTNBC patients. If validated in larger prospective studies, these easy-to-measure parameters could be combined with emerging predictive biomarkers, such as BRCA 1/2 mutations, to improve the selection of mTNBC patients more likely to benefit from platinum-based chemotherapy.
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Sun Y, Sethu P. Microfluidic Adaptation of Density-Gradient Centrifugation for Isolation of Particles and Cells. Bioengineering (Basel) 2017; 4:bioengineering4030067. [PMID: 28952546 PMCID: PMC5615313 DOI: 10.3390/bioengineering4030067] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 07/28/2017] [Accepted: 07/29/2017] [Indexed: 12/11/2022] Open
Abstract
Density-gradient centrifugation is a label-free approach that has been extensively used for cell separations. Though elegant, this process is time-consuming (>30 min), subjects cells to high levels of stress (>350 g) and relies on user skill to enable fractionation of cells that layer as a narrow band between the density-gradient medium and platelet-rich plasma. We hypothesized that microfluidic adaptation of this technique could transform this process into a rapid fractionation approach where samples are separated in a continuous fashion while being exposed to lower levels of stress (<100 g) for shorter durations of time (<3 min). To demonstrate proof-of-concept, we designed a microfluidic density-gradient centrifugation device and constructed a setup to introduce samples and medium like Ficoll in a continuous, pump-less fashion where cells and particles can be exposed to centrifugal force and separated via different outlets. Proof-of-concept studies using binary mixtures of low-density polystyrene beads (1.02 g/cm3) and high-density silicon dioxide beads (2.2 g/cm3) with Ficoll–Paque (1.06 g/cm3) show that separation is indeed feasible with >99% separation efficiency suggesting that this approach can be further adapted for separation of cells.
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Affiliation(s)
- Yuxi Sun
- Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
| | - Palaniappan Sethu
- Division of Cardiovascular Disease, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
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Clinical Outcomes of Specific Immunotherapy in Advanced Pancreatic Cancer: A Systematic Review and Meta-Analysis. J Immunol Res 2017; 2017:8282391. [PMID: 28265583 PMCID: PMC5318641 DOI: 10.1155/2017/8282391] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 12/15/2016] [Indexed: 02/08/2023] Open
Abstract
Specific immunotherapies, including vaccines with autologous tumor cells and tumor antigen-specific monoclonal antibodies, are important treatments for PC patients. To evaluate the clinical outcomes of PC-specific immunotherapy, we performed a systematic review and meta-analysis of the relevant published clinical trials. The effects of specific immunotherapy were compared with those of nonspecific immunotherapy and the meta-analysis was executed with results regarding the overall survival (OS), immune responses data, and serum cancer markers data. The pooled analysis was performed by using the random-effects model. We found that significantly improved OS was noted for PC patients utilizing specific immunotherapy and an improved immune response was also observed. In conclusion, specific immunotherapy was superior in prolonging the survival time and enhancing immunological responses in PC patients.
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Rovati B, Mariucci S, Delfanti S, Grasso D, Tinelli C, Torre C, De Amici M, Pedrazzoli P. Simultaneous detection of circulating immunological parameters and tumor biomarkers in early stage breast cancer patients during adjuvant chemotherapy. Cell Oncol (Dordr) 2016; 39:211-28. [PMID: 26769126 DOI: 10.1007/s13402-015-0264-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/22/2015] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Chemotherapy-induced immune suppression has mainly been studied in patients with advanced cancer, but the influence of chemotherapy on the immune system in early stage cancer patients has so far not been studied systematically. The aim of the present study was to monitor the immune system during anthracycline- and taxane-based adjuvant chemotherapy in early stage breast cancer patients, to assess the impact of circulating tumor cells on selected immune parameters and to reveal putative angiogenic effects of circulating endothelial cells. METHODS Peripheral blood samples from 20 early stage breast cancer patients were analyzed using a flow cytometric multi-color of antibodies to enumerate lymphocyte and dendritic cell subsets, as well as endothelial and tumor cells. An enzyme-linked immunosorbent assay (ELISA) was used to measure the levels of various serological factors. RESULTS During chemotherapy, all immunological parameters and angiogenesis surrogate biomarkers showed significant decreases. The numbers of circulating tumor cells showed significant inverse correlations with the numbers of T helper cells, a lymphocyte subset directly related to effective anti-tumor responses. Reduced T helper cell numbers may contribute to systemic immunosuppression and, as such, the activation of dormant tumor cells. CONCLUSIONS From our results we conclude that adjuvant chemotherapy suppresses immune function in early stage breast cancer patients. In addition, we conclude that the presence of circulating tumor cells, defined as pan-cytokeratin(+), CD326(+), CD45(-) cells, may serve as an important indicator of a patient's immune status. Further investigations are needed to firmly define circulating tumor cells as a predictor for the success of breast cancer adjuvant chemotherapy.
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Affiliation(s)
- B Rovati
- SC Oncologia e Laboratorio di Citofluorimetria, e Terapie Cellulari, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
| | - S Mariucci
- SC Oncologia e Laboratorio di Citofluorimetria, e Terapie Cellulari, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - S Delfanti
- SC Oncologia e Laboratorio di Citofluorimetria, e Terapie Cellulari, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - D Grasso
- SC Oncologia e Laboratorio di Citofluorimetria, e Terapie Cellulari, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - C Tinelli
- Servizio di Biometria e Statistica Medica, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - C Torre
- SC Pediatria, Laboratorio di Immuno Allergologia, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - M De Amici
- SC Pediatria, Laboratorio di Immuno Allergologia, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - P Pedrazzoli
- SC Oncologia e Laboratorio di Citofluorimetria, e Terapie Cellulari, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
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