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Watanabe F, Sato S, Hirose T, Endo M, Endo A, Ito H, Ohba K, Mori T, Takahashi K. NRIP1 regulates cell proliferation in lung adenocarcinoma cells. J Biochem 2024; 175:323-333. [PMID: 38102728 DOI: 10.1093/jb/mvad107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 11/23/2023] [Indexed: 12/17/2023] Open
Abstract
Nuclear receptor interacting protein 1 (NRIP1) is a transcription cofactor that regulates the activity of nuclear receptors and transcription factors. Functional expression of NRIP1 has been identified in multiple cancers. However, the expression and function of NRIP1 in lung adenocarcinoma have remained unclear. Thus, we aimed to clarify the NRIP1 expression and its functions in lung adenocarcinoma cells. NRIP1 and Ki-67 were immunostained in the tissue microarray section consisting of 64 lung adenocarcinoma cases, and the association of NRIP1 immunoreactivity with clinical phenotypes was examined. Survival analysis was performed in lung adenocarcinoma data from The Cancer Genome Atlas (TCGA). Human A549 lung adenocarcinoma cell line with an NRIP1-silencing technique was used in vitro study. Forty-three of 64 cases were immunostained with NRIP1. Ki-67-positive cases were more frequent in NRIP1-positive cases as opposed to NRIP1-negative cases. Higher NRIP1 mRNA expression was associated with poor prognosis in the TCGA lung adenocarcinoma data. NRIP1 was mainly located in the nucleus of A549 cells. NRIP1 silencing significantly reduced the number of living cells, suppressed cell proliferation, and induced apoptosis. These results suggest that NRIP1 participates in the progression and development of lung adenocarcinoma. Targeting NRIP1 may be a possible therapeutic strategy against lung adenocarcinoma.
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Affiliation(s)
- Fumihiko Watanabe
- Department of Endocrinology and Applied Medical Science, Tohoku University Graduate School of Medicine, 2-1, Seiryo, Aoba, 980-8575 Sendai, Japan
- Department of Blood Transfusion and Transplantation Immunology, Fukushima Medical University School of Medicine, 1, Hikarigaoka, Fukushima, 960-1295 Fukushima, Japan
| | - Shigemitsu Sato
- Department of Endocrinology and Applied Medical Science, Tohoku University Graduate School of Medicine, 2-1, Seiryo, Aoba, 980-8575 Sendai, Japan
- Division of Integrative Renal Replacement Therapy, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, 1-15-1, Fukumuro, Miyagino, 983-8536 Sendai, Japan
| | - Takuo Hirose
- Department of Endocrinology and Applied Medical Science, Tohoku University Graduate School of Medicine, 2-1, Seiryo, Aoba, 980-8575 Sendai, Japan
- Division of Integrative Renal Replacement Therapy, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, 1-15-1, Fukumuro, Miyagino, 983-8536 Sendai, Japan
- Division of Nephrology and Endocrinology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, 1-15-1, Fukumuro, Miyagino, 983-8536 Sendai, Japan
| | - Moe Endo
- Department of Endocrinology and Applied Medical Science, Tohoku University Graduate School of Medicine, 2-1, Seiryo, Aoba, 980-8575 Sendai, Japan
| | - Akari Endo
- Department of Endocrinology and Applied Medical Science, Tohoku University Graduate School of Medicine, 2-1, Seiryo, Aoba, 980-8575 Sendai, Japan
- Division of Nephrology and Endocrinology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, 1-15-1, Fukumuro, Miyagino, 983-8536 Sendai, Japan
| | - Hiroki Ito
- Department of Endocrinology and Applied Medical Science, Tohoku University Graduate School of Medicine, 2-1, Seiryo, Aoba, 980-8575 Sendai, Japan
- Division of Nephrology and Endocrinology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, 1-15-1, Fukumuro, Miyagino, 983-8536 Sendai, Japan
| | - Koji Ohba
- Department of Endocrinology and Applied Medical Science, Tohoku University Graduate School of Medicine, 2-1, Seiryo, Aoba, 980-8575 Sendai, Japan
| | - Takefumi Mori
- Division of Integrative Renal Replacement Therapy, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, 1-15-1, Fukumuro, Miyagino, 983-8536 Sendai, Japan
- Division of Nephrology and Endocrinology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, 1-15-1, Fukumuro, Miyagino, 983-8536 Sendai, Japan
| | - Kazuhiro Takahashi
- Department of Endocrinology and Applied Medical Science, Tohoku University Graduate School of Medicine, 2-1, Seiryo, Aoba, 980-8575 Sendai, Japan
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Conte L, Gonella F, Giansanti A, Kleidon A, Romano A. Modeling cell populations metabolism and competition under maximum power constraints. PLoS Comput Biol 2023; 19:e1011607. [PMID: 37939139 PMCID: PMC10659174 DOI: 10.1371/journal.pcbi.1011607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 11/20/2023] [Accepted: 10/16/2023] [Indexed: 11/10/2023] Open
Abstract
Ecological interactions are fundamental at the cellular scale, addressing the possibility of a description of cellular systems that uses language and principles of ecology. In this work, we use a minimal ecological approach that encompasses growth, adaptation and survival of cell populations to model cell metabolisms and competition under energetic constraints. As a proof-of-concept, we apply this general formulation to study the dynamics of the onset of a specific blood cancer-called Multiple Myeloma. We show that a minimal model describing antagonist cell populations competing for limited resources, as regulated by microenvironmental factors and internal cellular structures, reproduces patterns of Multiple Myeloma evolution, due to the uncontrolled proliferation of cancerous plasma cells within the bone marrow. The model is characterized by a class of regime shifts to more dissipative states for selectively advantaged malignant plasma cells, reflecting a breakdown of self-regulation in the bone marrow. The transition times obtained from the simulations range from years to decades consistently with clinical observations of survival times of patients. This irreversible dynamical behavior represents a possible description of the incurable nature of myelomas based on the ecological interactions between plasma cells and the microenvironment, embedded in a larger complex system. The use of ATP equivalent energy units in defining stocks and flows is a key to constructing an ecological model which reproduces the onset of myelomas as transitions between states of a system which reflects the energetics of plasma cells. This work provides a basis to construct more complex models representing myelomas, which can be compared with model ecosystems.
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Affiliation(s)
- Luigi Conte
- Department of Environmental Sciences, Informatics and Statistics, Ca’ Foscari University of Venice, Venezia Mestre, Italy
- Department of Physics, Sapienza University of Rome, Roma, Italy
- Centre for the Study of the Systemic Dynamics of Complex Diseases, Venezia Mestre, Italy
| | - Francesco Gonella
- Centre for the Study of the Systemic Dynamics of Complex Diseases, Venezia Mestre, Italy
- Department of Molecular Sciences and Nanosystems, Ca’ Foscari University of Venice, Venezia Mestre, Italy
- THE NEW INSTITUTE Centre for Environmental Humanities (NICHE), Venezia, Italy
| | - Andrea Giansanti
- Department of Physics, Sapienza University of Rome, Roma, Italy
- Istituto Nazionale di Fisica Nucleare, Roma, Italy
| | - Axel Kleidon
- Biospheric Theory and Modeling Group, Max Planck Institute for Biogeochemistry, Jena, Germany
| | - Alessandra Romano
- Centre for the Study of the Systemic Dynamics of Complex Diseases, Venezia Mestre, Italy
- Department of General Surgery and Medical-Surgical Specialties, University of Catania, Catania, Italy
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Yavorkovsky LL. The role of staging in multiple myeloma. Expert Rev Hematol 2023; 16:933-942. [PMID: 37902242 DOI: 10.1080/17474086.2023.2277876] [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: 09/22/2023] [Accepted: 10/27/2023] [Indexed: 10/31/2023]
Abstract
INTRODUCTION The importance of cancer staging is determined by how accurately it can predict prognosis, and how useful it is for treatment decisions. Compared to other malignancies, multiple myeloma (MM) staging proved more challenging because of unreliable prognostic factors and wide-ranging life expectancy. As traditional MM staging continues to evolve, it requires reassessment of its prognostic and predictive value. AREAS COVERED The studies that included prognostic and predictive value of MM stages from 1975 through 2023 were selected for this review using PubMed, MEDLINE platforms. The history and evolution of MM staging are revisited, including its role in predicting survival, treatment planning and potential practical implications for the future. The role of MM staging for oncological practice and patient counseling is discussed. EXPERT OPINION The utility of the traditional MM staging remains unsatisfactory because it lacks a strong connection with the disease biology, prognosis or treatment planning. Additionally, it demonstrates a modest value for patient counseling because individual prognosis is subject to under- or overestimation, and the median survival or survival rates are difficult concepts to grasp. Although the role of MM stages may change in the future, the current research upholds the notion that MM staging benefits more medical research and clinical trials than oncological practice.
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Affiliation(s)
- Leonid L Yavorkovsky
- Kaiser Permanente San Jose Medical Center, Oncology Division, 271 International Circle, San Jose, CA, USA
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Atrash S, Robinson M, Taneja A, Paul B, Cassetta K, Ndiaye A, Varga C, Block J, Lipford EH, Smith ET, McCall CM, Thurston V, Foureau D, Usmani SZ, Voorhees PM, Bhutani M. Bone marrow Ki-67 index is of prognostic value in newly diagnosed multiple myeloma. Eur J Haematol 2023. [PMID: 37311695 DOI: 10.1111/ejh.14016] [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: 04/18/2023] [Revised: 05/19/2023] [Accepted: 05/23/2023] [Indexed: 06/15/2023]
Abstract
BACKGROUND Ki-67 is an index of proliferative activity and is an established predictive and prognostic marker in multiple malignancies. However, its prognostic relevance in multiple myeloma (MM) is unclear. We investigated the relationship between Ki-67 expression and survival outcomes in MM in the era of novel therapies. METHODS We interrogated our database to identify patients with MM, newly diagnosed between July 1, 2013 and December 31, 2020, with Ki-67 expression assessed by immunohistochemistry (IHC) on bone marrow biopsies. Using an established threshold of 5% we defined Ki-67low (≤5%) and Ki-67high (>5%) subgroups for association with progression-free survival (PFS) and overall survival (OS). RESULTS Of 167 patients included: 53 (31.7%) had Ki-67high and 114 had Ki-67low. More patients with R-ISS 3 had Ki-67high (22.2% vs. 9.7%). The gain of 1q21 was overrepresented in the Ki-67high group (28% vs. 8%). Median PFS in the Ki-67low group was 3.1 years, and in the Ki-67high group 1.6 years (log-rank p < .001, HR: 1.9). Median OS was not reached in the Ki-67low vs. 4.8 years in the Ki-67high cohort (HR: 1.9; log-rank test: p = .018). In the multivariable modeling, after adjusting for other risk factors, HR for Ki-67high versus Ki-67low was 2.4 (p < .001) for PFS and 2.1 (p = .026) for OS. CONCLUSIONS Our results demonstrate that a high Ki-67 index (>5%) is an independent prognostic marker associated with worse OS and PFS in newly diagnosed MM. IHC staining for Ki-67 on bone marrow biopsies could be easily adopted as a prognostic biomarker for MM in economically constrained healthcare settings.
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Affiliation(s)
- Shebli Atrash
- Department of Hematologic Oncology and Blood Disorders, Levine Cancer Institute, Atrium Health, Charlotte, North Carolina, USA
| | - Myra Robinson
- Department of Cancer Biostatistics, Levine Cancer Institute, Atrium Health, Charlotte, North Carolina, USA
| | - Alankrita Taneja
- Department of Hematologic Oncology and Blood Disorders, Levine Cancer Institute, Atrium Health, Charlotte, North Carolina, USA
| | - Barry Paul
- Department of Hematologic Oncology and Blood Disorders, Levine Cancer Institute, Atrium Health, Charlotte, North Carolina, USA
| | - Kristen Cassetta
- Department of Cancer Biostatistics, Levine Cancer Institute, Atrium Health, Charlotte, North Carolina, USA
| | - Ami Ndiaye
- Department of Hematologic Oncology and Blood Disorders, Levine Cancer Institute, Atrium Health, Charlotte, North Carolina, USA
| | - Cindy Varga
- Department of Hematologic Oncology and Blood Disorders, Levine Cancer Institute, Atrium Health, Charlotte, North Carolina, USA
| | - Jared Block
- Department of Hematopathology, Carolinas Pathology Group, Charlotte, North Carolina, USA
| | - Edward H Lipford
- Department of Hematopathology, Carolinas Pathology Group, Charlotte, North Carolina, USA
| | - Elton T Smith
- Department of Hematopathology, Carolinas Pathology Group, Charlotte, North Carolina, USA
| | - Chad M McCall
- Department of Hematopathology, Carolinas Pathology Group, Charlotte, North Carolina, USA
| | - Virginia Thurston
- Department of Hematopathology, Carolinas Pathology Group, Charlotte, North Carolina, USA
| | - David Foureau
- Immune Monitoring Core Laboratory, Levine Cancer Institute, Atrium Health, Charlotte, North Carolina, USA
| | - Saad Z Usmani
- Department of Hematologic Oncology and Blood Disorders, Levine Cancer Institute, Atrium Health, Charlotte, North Carolina, USA
| | - Peter M Voorhees
- Department of Hematologic Oncology and Blood Disorders, Levine Cancer Institute, Atrium Health, Charlotte, North Carolina, USA
| | - Manisha Bhutani
- Department of Hematologic Oncology and Blood Disorders, Levine Cancer Institute, Atrium Health, Charlotte, North Carolina, USA
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Mengich I, Rajput S, Malkit R, Moloo Z, Kagotho E, Lalani EN, Mwirigi A. Immunophenotypic expression profile of multiple myeloma cases at a tertiary hospital in Nairobi Kenya. Front Med (Lausanne) 2023; 10:1177775. [PMID: 37250623 PMCID: PMC10213391 DOI: 10.3389/fmed.2023.1177775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 04/17/2023] [Indexed: 05/31/2023] Open
Abstract
Introduction Multiple myeloma (MM) is a plasma cell neoplasm that constitutes 10-15% of all hematopoietic neoplasms. Kenya is placed among the top five African countries for MM incidence and MM-related mortality. Prior studies have suggested that the aberrant expression of Cyclin D1, CD56, CD117 and Ki-67 on neoplastic plasma cells is useful in disease prognostication. The prevalence and significance of expression of these markers in a cohort of MM cases in Kenya has not been studied previously. Methods A retrospective cross-sectional study was carried out at the Aga Khan University Hospital, Nairobi. The study population included 83 MM cases with available trephine blocks archived between 1st of January 2009 and 31st of March 2020. Immunohistochemical expression of Cyclin D1, CD56, CD117, and Ki-67 was analyzed and scored. The biomarkers were described using frequencies based on the positive and negative results. Fisher's exact test was used to determine the association between the immunophenotypic markers and categorical variables. Results Of the 83 selected cases, expression of Cyclin D1, CD56, CD117 and Ki-67 was identified in 28.9, 34.9, 7.2, and 50.6%, respectively. Cyclin D1 positivity was significantly associated with hypercalcemia. Absence of CD117 expression was noted to be associated with adverse risk parameters including an IgA isotype or light chain disease, International Staging System (ISS) stage III disease, abnormal baseline serum free light chains (sFLC) and a high plasma cell burden. Conclusion Cyclin D1 expression was congruent with previously reported studies. The frequency of CD56 and CD117 expression was lower than previously reported. This may be due to differences in disease biology between the study populations. Approximately half of cases were Ki-67 positive. Our data showed limited associations between the expression of studied markers and clinicopathologic variables. However, this could be attributed to the small study sample size. We would recommend further characterization of the disease in a larger prospective study with the inclusion of survival outcomes and cytogenetic studies.
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Affiliation(s)
- Isabella Mengich
- Department of Pathology, Aga Khan University Hospital, Nairobi, Kenya
| | - Sheerien Rajput
- Department of Pathology and Laboratory Medicine, Aga Khan University, Karachi, Pakistan
- Centre for Regenerative Medicine and Stem Cell Research, Aga Khan University, Karachi, Pakistan
| | - Riyat Malkit
- Department of Pathology, Aga Khan University Hospital, Nairobi, Kenya
| | - Zahir Moloo
- Department of Pathology, Aga Khan University Hospital, Nairobi, Kenya
| | - Elizabeth Kagotho
- Department of Pathology, Aga Khan University Hospital, Nairobi, Kenya
| | - El-Nasir Lalani
- Department of Pathology and Laboratory Medicine, Aga Khan University, Karachi, Pakistan
- Centre for Regenerative Medicine and Stem Cell Research, Aga Khan University, Karachi, Pakistan
| | - Anne Mwirigi
- Department of Pathology, Aga Khan University Hospital, Nairobi, Kenya
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Linguanti F, Abenavoli EM, Briganti V, Danti G, Lavacchi D, Matteini M, Vaggelli L, Novelli L, Grosso AM, Mungai F, Mini E, Antonuzzo L, Miele V, Sciagrà R, Berti V. Added prognostic value of molecular imaging parameters over proliferation index in typical lung carcinoid: an [18F]FDG PET/CT and SSTR imaging study. Ann Nucl Med 2023; 37:1-9. [PMID: 36309948 PMCID: PMC9813078 DOI: 10.1007/s12149-022-01797-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 10/10/2022] [Indexed: 01/09/2023]
Abstract
OBJECTIVE This study was performed to evaluate the prognostic meaning of volumetric and semi-quantitative parameters measured using [18F]FDG PET/CT and somatostatin receptor (SSTR) imaging in patients with typical lung carcinoid (TC), and their relationship with proliferative index (Ki67). METHODS We retrospectively reviewed 67 patients (38-94 years old, mean: 69.7) with diagnosis of TC who underwent [18F]FDG PET/CT and/or SSTR scintigraphy/SPECT with [111In]DTPA-Octreotide plus contrast-enhanced CT (CECT) at staging evaluation. All patients had Ki67 measured and a follow-up (FU) of at least 1 year. SSTR density (SSTRd) was calculated as the percentage difference of tumor/non-tumor ratio at 4 and 24 h post-injection. At PET/CT, metabolic activity was measured using SUVmax and SUVratio; volumetric parameters included MTV and TLG of the primary tumor, measured using the threshold SUV41%. ROC analysis, discriminant analysis and Kaplan-Meier curves (KM) were performed. RESULTS 11 patients died during FU. Disease stage (localized versus advanced), SUVratio, SUVmax, Ki67, MTV and TLG were significantly higher in non-survivors than in survivors. ROC curves resulted statistically significant for Ki67, SUVratio, SUVmax, MTV and TLG. On multivariate analysis, stage of disease and TLG were significant independent predictors of overall survival (OS). In KM curves, the combination of disease stage and TLG identified four groups with significantly different outcomes (p < 0.005). Metabolic activity (SUVmax and SUVratio) was confirmed as significant independent prognostic factor for OS also in patients with advanced disease, with the best AUC using SUVmax. In patients with advanced and localized disease, SSTRd proved to be the best imaging prognostic factor for progression and for disease-free survival (DFS), respectively. In localized disease, SSTRd 31.5% identified two subgroups of patients with significant different DFS distribution and in advanced disease, a high cutoff value (58.5%) was a significant predictor of adverse prognosis. CONCLUSION Volumetric and semi-quantitative parameters measured using [18F]FDG PET/CT and SSTR imaging combined with Ki67 may provide a reference for prognosis evaluation of patients with TC, to better stratify risk groups with the goal of developing individualized therapeutic strategies.
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Affiliation(s)
- Flavia Linguanti
- Nuclear Medicine Unit, Department of Experimental and Clinical Biomedical Sciences ``Mario Serio’’, University of Florence, 50134 Florence, Italy
| | - Elisabetta M. Abenavoli
- Nuclear Medicine Unit, Department of Experimental and Clinical Biomedical Sciences ``Mario Serio’’, University of Florence, 50134 Florence, Italy
| | - Vittorio Briganti
- Nuclear Medicine Unit, Careggi University Hospital, Largo Brambilla 3, 50134 Florence, Italy
| | - Ginevra Danti
- Department of Radiology, Careggi University Hospital, Largo Brambilla 3, 50134 Florence, Italy
| | - Daniele Lavacchi
- Medical Oncology Unit, Careggi University Hospital, Largo Brambilla 3, 50134 Florence, Italy
| | - Maria Matteini
- Nuclear Medicine Unit, Careggi University Hospital, Largo Brambilla 3, 50134 Florence, Italy
| | - Luca Vaggelli
- Nuclear Medicine Unit, Careggi University Hospital, Largo Brambilla 3, 50134 Florence, Italy
| | - Luca Novelli
- Department of Pathology, Careggi University Hospital, Largo Brambilla 3, 50134 Florence, Italy
| | - Anna M. Grosso
- Unit of Pneumology and Thoracic-Pulmonary Physiopathology, Careggi University Hospital, Largo Brambilla 3, 50134 Florence, Italy
| | - Francesco Mungai
- Department of Radiology, Careggi University Hospital, Largo Brambilla 3, 50134 Florence, Italy
| | - Enrico Mini
- Department of Health Sciences, University of Florence, 50139 Florence, Italy
| | - Lorenzo Antonuzzo
- Medical Oncology Unit, Careggi University Hospital, Largo Brambilla 3, 50134 Florence, Italy ,Department of Experimental and Clinical Medicine, University of Florence, Largo Brambilla 3, 50134 Florence, Italy
| | - Vittorio Miele
- Department of Radiology, Careggi University Hospital, Largo Brambilla 3, 50134 Florence, Italy
| | - Roberto Sciagrà
- Nuclear Medicine Unit, Department of Experimental and Clinical Biomedical Sciences ``Mario Serio’’, University of Florence, 50134 Florence, Italy
| | - Valentina Berti
- Nuclear Medicine Unit, Department of Experimental and Clinical Biomedical Sciences ``Mario Serio’’, University of Florence, 50134 Florence, Italy
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Walter LO, Maioral MF, Silva LO, Speer DB, Campbell SC, Gallimore W, Falkenberg MB, Santos-Silva MC. Involvement of the NF-κB and PI3K/Akt/mTOR pathways in cell death triggered by stypoldione, an o-quinone isolated from the brown algae Stypopodium zonale. ENVIRONMENTAL TOXICOLOGY 2022; 37:1297-1309. [PMID: 35128807 DOI: 10.1002/tox.23484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 01/07/2022] [Accepted: 01/22/2022] [Indexed: 06/14/2023]
Abstract
Multiple myeloma (MM) is a clonal plasma cell malignancy that remains incurable to date. Thus, the aims of this study were to evaluate the involvement of the NF-κB and PI3K/Akt/mTOR pathways in the cytotoxicity of stypoldione, an o-quinone isolated from the brown algae Stypopodium zonale, in MM cells (MM1.S). The cytotoxic effect was evaluated in MM1.S cells and peripheral blood mononuclear cells (PBMCs) by MTT assay. The stypoldione reduced the cell viability of MM1.S cells in a concentration and time-dependent manner (IC50 in MM.1S from 2.55 to 5.38 μM). However, it was also cytotoxic to PBMCs, but at a lower range. Additionally, no significant hemolysis was observed even at concentration up to 10 times the IC50 . Apoptotic cell death was confirmed by cell morphology and Annexin V-FITC assay. Stypoldione induced intrinsic and extrinsic apoptosis by increasing FasR expression and reactive oxygen species (ROS) production, inverting the Bax/Bcl-2 ratio, and inducing ΔΨm loss, which resulted in AIF release and caspase-3 activation. It also increased Ki-67 and survivin expression and inhibited the NF-κB and PI3K/Akt/mTOR pathways. These results suggest that stypoldione is a good candidate for the development of new drugs for MM treatment.
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Affiliation(s)
- Laura O Walter
- Experimental Oncology and Hemopathies Laboratory, Clinical Analysis Department, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
- Post-Graduation Program in Pharmacy, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Mariana F Maioral
- Experimental Oncology and Hemopathies Laboratory, Clinical Analysis Department, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
- Post-Graduation Program in Pharmacy, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Lisandra O Silva
- Experimental Oncology and Hemopathies Laboratory, Clinical Analysis Department, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
- Post-Graduation Program in Pharmacy, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Douglas B Speer
- Experimental Oncology and Hemopathies Laboratory, Clinical Analysis Department, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Sanjay C Campbell
- Department of Chemistry, University of the West Indies, St. Andrew, Jamaica
| | - Winklet Gallimore
- Department of Chemistry, University of the West Indies, St. Andrew, Jamaica
| | - Miriam B Falkenberg
- Post-Graduation Program in Pharmacy, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Maria Cláudia Santos-Silva
- Experimental Oncology and Hemopathies Laboratory, Clinical Analysis Department, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
- Post-Graduation Program in Pharmacy, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
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Croucher DC, Richards LM, Tsofack SP, Waller D, Li Z, Wei EN, Huang XF, Chesi M, Bergsagel PL, Sebag M, Pugh TJ, Trudel S. Longitudinal single-cell analysis of a myeloma mouse model identifies subclonal molecular programs associated with progression. Nat Commun 2021; 12:6322. [PMID: 34732728 PMCID: PMC8566524 DOI: 10.1038/s41467-021-26598-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 10/12/2021] [Indexed: 12/16/2022] Open
Abstract
Molecular programs that underlie precursor progression in multiple myeloma are incompletely understood. Here, we report a disease spectrum-spanning, single-cell analysis of the Vκ*MYC myeloma mouse model. Using samples obtained from mice with serologically undetectable disease, we identify malignant cells as early as 30 weeks of age and show that these tumours contain subclonal copy number variations that persist throughout progression. We detect intratumoural heterogeneity driven by transcriptional variability during active disease and show that subclonal expression programs are enriched at different times throughout early disease. We then show how one subclonal program related to GCN2 stress response is progressively activated during progression in myeloma patients. Finally, we use chemical and genetic perturbation of GCN2 in vitro to support this pathway as a therapeutic target in myeloma. These findings therefore present a model of precursor progression in Vκ*MYC mice, nominate an adaptive mechanism important for myeloma survival, and highlight the need for single-cell analyses to understand the biological underpinnings of disease progression.
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Affiliation(s)
- Danielle C Croucher
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada
| | - Laura M Richards
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada
| | - Serges P Tsofack
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Daniel Waller
- Department of Medicine, McGill University, Montréal, QC, Canada
| | - Zhihua Li
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Ellen Nong Wei
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Xian Fang Huang
- Department of Medicine, McGill University, Montréal, QC, Canada
| | - Marta Chesi
- Division of Hematology/Oncology, Mayo Clinic, Scottsdale, AZ, USA
| | - P Leif Bergsagel
- Division of Hematology/Oncology, Mayo Clinic, Scottsdale, AZ, USA
| | - Michael Sebag
- Department of Medicine, McGill University, Montréal, QC, Canada
| | - Trevor J Pugh
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada.
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada.
- Ontario Institute for Cancer Research, Toronto, ON, Canada.
| | - Suzanne Trudel
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada.
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada.
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Fu Q, Liu SL, Hao DP, Hu YB, Liu XJ, Zhang Z, Wang WH, Tang XY, Zhang CY, Liu SH. CT Radiomics Model for Predicting the Ki-67 Index of Lung Cancer: An Exploratory Study. Front Oncol 2021; 11:743490. [PMID: 34707991 PMCID: PMC8542688 DOI: 10.3389/fonc.2021.743490] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 09/15/2021] [Indexed: 12/24/2022] Open
Abstract
Objective To establish a radiomics signature and a nomogram model based on enhanced CT images to predict the Ki-67 index of lung cancer. Methods From January 2014 to December 2018, 282 patients with lung cancer who had undergone enhanced CT scans and Ki-67 examination within 2 weeks were retrospectively enrolled and analyzed. The clinical data of the patients were collected, such as age, sex, smoking history, maximum tumor diameter and serum tumor markers. Our primary cohort was randomly divided into a training group (n=197) and a validation group (n=85) at a 7:3 ratio. A Ki-67 index ≤ 40% indicated low expression, and a Ki-67 index > 40% indicated high expression. In total, 396 radiomics features were extracted using AK software. Feature reduction and selection were performed using the lasso regression model. Logistic regression analysis was used to establish a multivariate predictive model to identify high and low Ki-67 expression in lung cancer. A nomogram integrating the radiomics score was established based on multiple logistic regression analysis. Area under the curve (AUC) was used to evaluate the prediction efficiency of the radiomics signature and nomogram. Results The AUC,sensitivity, specificity and accuracy of the radiomics signature in the training and validation groups were 0.88 (95% CI: 0.82~0.93),79.2%,84.3%,81.2% and 0.86 (95% CI: 0.78~0.94),74.6%,88.1%,79.8%, respectively. A nomogram combining radiomics features and clinical risk factors (smoking history and NSE) was developed. The AUC, sensitivity, specificity and accuracy were 0.87 (95% CI: 0.80~0.95), 75.0%, 90.2% and 83.5% in the validation group, respectively. Conclusion The radiomics signature and nomogram based on enhanced CT images provide a way to predict the Ki-67 expression level in lung cancer.
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Affiliation(s)
- Qing Fu
- The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shun Li Liu
- The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Da Peng Hao
- The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ya Bin Hu
- The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xue Jun Liu
- The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Zaixian Zhang
- The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Wen Hong Wang
- The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xiao Yan Tang
- The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Chuan Yu Zhang
- The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shi He Liu
- The Affiliated Hospital of Qingdao University, Qingdao, China
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10
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Mori H, Fukatsu M, Ohkawara H, Oka Y, Kataoka Y, Taito S, Ikezoe T. Heterogeneity in the diagnosis of plasmablastic lymphoma, plasmablastic myeloma, and plasmablastic neoplasm: a scoping review. Int J Hematol 2021; 114:639-652. [PMID: 34462886 DOI: 10.1007/s12185-021-03211-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 08/20/2021] [Accepted: 08/24/2021] [Indexed: 12/19/2022]
Abstract
The diagnosis of plasmablastic lymphoma (PBL), plasmablastic myeloma (PBM), and plasmablastic neoplasm (PBN) may be arbitrary in some cases because these entities can be indistinct. We conducted this scoping review to investigate heterogeneity in diagnostic criteria used in previous studies and validate the diagnostic results of previous diagnostic algorithms and the algorithm we developed, which also includes diagnosis of PBN. Using the PRISMA Extension for Scoping Reviews, we analyzed literature published between September 2017 and April 2020. We identified a total of 163 cases (128 PBL, 32 PBM, and 3 PBN) from 77 case reports and 8 case series. We found that diagnostic criteria in the literature varied for PBL but were consistent for PBM. Our algorithm was the first attempt to include PBN in a complete structure. The results of the three diagnostic algorithms varied significantly. Hematologists and pathologists should pay more attention to the differential diagnosis of PBL, PBM, and PBN.
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Affiliation(s)
- Hirotaka Mori
- Department of Hematology, Fukushima Medical University, 1 Hikarigaoka, Fukushima, 9601295, Japan.
| | - Masahiko Fukatsu
- Department of Hematology, Fukushima Medical University, 1 Hikarigaoka, Fukushima, 9601295, Japan
| | - Hiroshi Ohkawara
- Department of Hematology, Fukushima Medical University, 1 Hikarigaoka, Fukushima, 9601295, Japan
| | - Yuka Oka
- Department of Diagnostic Pathology, Fukushima Medical University, Fukushima, Japan
| | - Yuki Kataoka
- Hospital Care Research Unit, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan.,Department of Healthcare Epidemiology, School of Public Health in the Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Systematic Review Workshop Peer Support Group (SRWS-PSG), Osaka, Japan.,Department of Respiratory Medicine, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
| | - Shunsuke Taito
- Systematic Review Workshop Peer Support Group (SRWS-PSG), Osaka, Japan.,Division of Rehabilitation, Department of Clinical Practice and Support, Hiroshima University Hospital, Hiroshima, Japan
| | - Takayuki Ikezoe
- Department of Hematology, Fukushima Medical University, 1 Hikarigaoka, Fukushima, 9601295, Japan
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11
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Remnant L, Kochanova NY, Reid C, Cisneros-Soberanis F, Earnshaw WC. The intrinsically disorderly story of Ki-67. Open Biol 2021; 11:210120. [PMID: 34375547 PMCID: PMC8354752 DOI: 10.1098/rsob.210120] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 07/13/2021] [Indexed: 01/14/2023] Open
Abstract
Ki-67 is one of the most famous marker proteins used by histologists to identify proliferating cells. Indeed, over 30 000 articles referring to Ki-67 are listed on PubMed. Here, we review some of the current literature regarding the protein. Despite its clinical importance, our knowledge of the molecular biology and biochemistry of Ki-67 is far from complete, and its exact molecular function(s) remain enigmatic. Furthermore, reports describing Ki-67 function are often contradictory, and it has only recently become clear that this proliferation marker is itself dispensable for cell proliferation. We discuss the unusual organization of the protein and its mRNA and how they relate to various models for its function. In particular, we focus on ways in which the intrinsically disordered structure of Ki-67 might aid in the assembly of the still-mysterious mitotic chromosome periphery compartment by controlling liquid-liquid phase separation of nucleolar proteins and RNAs.
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Affiliation(s)
- Lucy Remnant
- Wellcome Centre for Cell Biology, University of Edinburgh, ICB, Michael Swann Building, King's Buildings, Max Born Crescent, Edinburgh EH9 3BF, UK
| | - Natalia Y. Kochanova
- Wellcome Centre for Cell Biology, University of Edinburgh, ICB, Michael Swann Building, King's Buildings, Max Born Crescent, Edinburgh EH9 3BF, UK
| | - Caitlin Reid
- Wellcome Centre for Cell Biology, University of Edinburgh, ICB, Michael Swann Building, King's Buildings, Max Born Crescent, Edinburgh EH9 3BF, UK
| | - Fernanda Cisneros-Soberanis
- Wellcome Centre for Cell Biology, University of Edinburgh, ICB, Michael Swann Building, King's Buildings, Max Born Crescent, Edinburgh EH9 3BF, UK
| | - William C. Earnshaw
- Wellcome Centre for Cell Biology, University of Edinburgh, ICB, Michael Swann Building, King's Buildings, Max Born Crescent, Edinburgh EH9 3BF, UK
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12
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Three-Dimensional Reconstructed Bone Marrow Matrix Culture Improves the Viability of Primary Myeloma Cells In-Vitro via a STAT3-Dependent Mechanism. Curr Issues Mol Biol 2021; 43:313-323. [PMID: 34201211 PMCID: PMC8928965 DOI: 10.3390/cimb43010026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/04/2021] [Accepted: 06/04/2021] [Indexed: 11/17/2022] Open
Abstract
Primary myeloma (PM) cells are short-lived in conventional culture, which limited their usefulness as a study model. Here, we evaluated if three-dimensional (3D) culture can significantly prolong the longevity of PM cells in-vitro. We employed a previously established 3D model for culture of bone marrow mononuclear cells isolated from 15 patients. We assessed the proportion of PM cells, viability and proliferation using CD38 staining, trypan blue exclusion assays and carboxy fluorescein succinimidyl ester (CFSE) staining, respectively. We observed significantly more CD38+ viable cells in 3D than in conventional culture (65% vs. 25%, p = 0.006) on day 3. CFSE staining showed no significant difference in cell proliferation between the two culture systems. Moreover, we found that PM cells in 3D culture are more STAT3 active by measure of pSTAT3 staining (66% vs. 10%, p = 0.008). Treatment of IL6, a STAT3 activator significantly increased CD38+ cell viability (41% to 68%, p = 0.021). In comparison, inhibition of STAT3 with Stattic significantly decreased PM cell viability in 3D culture (38% to 17% p = 0.010). Neither IL6 nor Stattic affected the PM cell viability in conventional culture. This study suggests that 3D culture can significantly improve the longevity of PM cells in-vitro, and STAT3 activation can further improve their viability.
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Mohamadien NRA, Sayed MHM. Correlation between semiquantitative and volumetric 18F-FDG PET/computed tomography parameters and Ki-67 expression in breast cancer. Nucl Med Commun 2021; 42:656-664. [PMID: 33560720 DOI: 10.1097/mnm.0000000000001376] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVES To evaluate the relationship between semiquantitative and volumetric parameters on 18F-FDG PET/computed tomography (CT), including maximum standardized uptake value (SUVmax), mean standardized uptake value (SUVmean), metabolic tumor volume (MTV), total lesion glycolysis (TLG), tumor to liver ratio (TLR) and tumor to mediastinum ratio (TMR) with the level of Ki-67 expression in breast cancer. PATIENT AND METHODS We retrospectively reviewed 105 female patients with newly diagnosed breast cancer who underwent baseline 18F-FDG PET/CT and had immunohistochemical staining to determine the level of Ki-67 expression. The following PET parameters were measured (SUVmax, SUVmean, MTV, TLG, TLR and TMR) and correlated with level of Ki-67 expression. RESULTS Significant moderate positive correlations were found between the PET parameters (primary SUVmax, SUVmean, TLG, TLR and TMR) and level of Ki-67 expression. The primary SUVmax had the highest correlation coefficient (r = 0.461) followed by TMR (r = 0.455) and P value of <0.001 for both. In ROC analysis, primary SUVmax had the largest area under the curve (0.806, P = 0.0001), with sensitivity of 76.5 % and specificity of 75% for prediction of high Ki-67 level. In univariate analysis, all PET parameters, patient age, tumor grade, molecular subtype, estrogen receptor and progesterone receptor status were significantly associated with Ki-67 level. In multivariate regression analysis, only tumor grade [odds ratio (OR) = 20.460, 95% confidence interval (CI): 11.360-29.559, P = <0.0001], molecular subtype (OR = -21.894, 95% CI: -37.921 to -5.866, P = 0.008), SUVmax (OR = 2.299, 95% CI: 0.703-3.895, P = 0.005) and TLR (OR = -4.908, 95% CI: -9.476 to -0.340, P = 0.035) were found to be the strongest independent predictor factors for the level of Ki-67 expression and hence proliferative activity of malignant cells in breast cancer. CONCLUSION The semiquantitative parameters and volumetric 18F-FDG PET/CT parameter, that is, TLG correlated well with proliferation marker Ki-67 in breast cancer. 18F-FDG PET/CT imaging can be used as a useful noninvasive diagnostic tool in imaging cellular proliferation and hence may substitute for in vitro testing of molecular markers in the diagnoses and staging of breast cancer.
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Affiliation(s)
- Nsreen R A Mohamadien
- Department of Clinical Oncology and Nuclear Medicine, Faculty of Medicine. Assiut University, Assiut, Egypt
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14
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Zhao C, Zhang J, Jia Y, Peng J, He W, Luo C, Hu H. Circular RNA Circ_0008035 Participates in the Progression of Multiple Myeloma by Regulating miRNA-1256. J BIOMATER TISS ENG 2021. [DOI: 10.1166/jbt.2021.2719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Anomalous expression of micro RNAs (miRNAs) and circular RNAs (circRNAs) were strongly correlated to the progression of multiple cancers, including multiple myeloma (MM). This study aimed to investigate whether circ_0008035 exerts its roles on MM cells by targetingmiRNA-1256. To analyze
the levels of circ_0008035 and miRNA-1256 in MM samples and healthy bone marrow samples, a real time quantitative PCR (RT-qPCR) assay was executed. Cell proliferation and apoptosis were detected with a cell counting kit (CCK-8) and flow cytometry assay, respectively. The cell invasive and
migration ability were assessed using a transwell assay. Dual-luciferase reporter assay and RTqPCR were applied to analyze and compare the targeting effect of circ_0008035 and miRNA-1256. Circ_0008035 was overexpressed, while miRNA-1256 expression declined in MM bone marrow tissues. RPMI8226
cells transfected with si-circ_0008035 or miRNA-1256 mimic exhibited lower proliferation and migration capabilities, while cell apoptosis was remarkably elevated. Circ_0008035 acts as a miRNA-1256sponge and negatively controls miRNA-1256 expression. Transfection of anti-miRNA-1256 reversed
proliferation and migration inhibition and promoted cell apoptosis, which was motivated by si-circ_0008035 transfection. Circ_0008035 negatively regulated miRNA-1256, and the circ_0008035/miRNA-1256 axis regulates the progression of MM, thus providing a potential target for MM therapy.
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Affiliation(s)
- Caifang Zhao
- Department of Hematology, Jinhua Municipal Central Hospital, Jinhua Hospital Affiliated to Zhejiang University, Jinhua 321000, Zhejiang, PR China
| | - Jingcheng Zhang
- Department of Hematology, Jinhua Municipal Central Hospital, Jinhua Hospital Affiliated to Zhejiang University, Jinhua 321000, Zhejiang, PR China
| | - Yongqing Jia
- Department of Hematology, Jinhua Municipal Central Hospital, Jinhua Hospital Affiliated to Zhejiang University, Jinhua 321000, Zhejiang, PR China
| | - Jing Peng
- Department of Hematology, Jinhua Municipal Central Hospital, Jinhua Hospital Affiliated to Zhejiang University, Jinhua 321000, Zhejiang, PR China
| | - Wei He
- Department of Hematology, Jinhua Municipal Central Hospital, Jinhua Hospital Affiliated to Zhejiang University, Jinhua 321000, Zhejiang, PR China
| | - Chao Luo
- Department of Hematology, Jinhua Municipal Central Hospital, Jinhua Hospital Affiliated to Zhejiang University, Jinhua 321000, Zhejiang, PR China
| | - Huixian Hu
- Department of Hematology, Jinhua Municipal Central Hospital, Jinhua Hospital Affiliated to Zhejiang University, Jinhua 321000, Zhejiang, PR China
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15
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Bai H, Chen B. Abnormal PTBP1 Expression Sustains the Disease Progression of Multiple Myeloma. DISEASE MARKERS 2020; 2020:4013658. [PMID: 32655719 PMCID: PMC7321530 DOI: 10.1155/2020/4013658] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Revised: 05/24/2020] [Accepted: 05/25/2020] [Indexed: 11/18/2022]
Abstract
Multiple myeloma (MM) is a hematopoietic malignancy characterized by heterogeneity, which corresponds to alternative splicing (AS) profiles and disadjust gene expression. Bioinformatics analysis of AS factors possibly related to MM progression identified the polypyrimidine tract binding protein (PTBP1) as candidate. The purpose of this study was to confirm the incidence and prognostic value of PTBP1 in MM patients. Several cohorts of 2971 patients presenting newly diagnosed and relapsed MM were enrolled. Correlations between PTBP1 expression and clinicopathological characteristics, proliferative activity, and response to therapy of myeloma cells were analyzed. Moreover, the effect of PTBP1 on the AS pattern of specific aerobic glycolysis-related genes was explored in MM patients. Clinically, PTBP1 expression was present at all stages; it increased with disease progression and poor prognosis, which was even stronger elevated in patients with high tumor burden and drug resistance. Mechanistically, PTBP1 modulated AS of PKM2 and aerobic glycolysis-related genes in MM patients, which play synergistic or additive effects in clinical outcome. PTBP1 may be a novel marker for prognostic prediction and a promising therapeutic target for the development of anti-MM treatments.
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Affiliation(s)
- Hua Bai
- Department of Hematology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Bing Chen
- Department of Hematology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, China
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16
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Lin L, Cheng J, Tang D, Zhang Y, Zhang F, Xu J, Jiang H, Wu H. The associations among quantitative spectral CT parameters, Ki-67 expression levels and EGFR mutation status in NSCLC. Sci Rep 2020; 10:3436. [PMID: 32103127 PMCID: PMC7044288 DOI: 10.1038/s41598-020-60445-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 01/30/2020] [Indexed: 01/12/2023] Open
Abstract
Dual-energy spectral computed tomography (DESCT) is based on fast switching between high and low voltages from view to view to obtain dual-energy imaging data, and it can generate monochromatic image sets, iodine-based material decomposition images and spectral CT curves. Quantitative spectral CT parameters may be valuable for reflecting Ki-67 expression and EGFR mutation status in non-small-cell lung cancer (NSCLC). We investigated the associations among the quantitative parameters generated in DESCT and Ki-67 expression and EGFR mutation in NSCLC. We studied sixty-five NSCLC patients with preoperative DESCT scans, and their specimens underwent Ki-67 and EGFR evaluations. Statistical analyses were performed to identify the spectral CT parameters for the diagnosis of Ki-67 expression and EGFR mutation status. We found that tumour grade and the slope of the spectral CT curve in the venous phase were the independent factors influencing the Ki-67 expression level, and the area under the curve (AUC) of the slope of the spectral CT curve in the venous phase in the receiver operating characteristic analysis for distinguishing different Ki-67 expression levels was 0.901. Smoking status and the normalized iodine concentration in the venous phase were independent factors influencing EGFR mutation, and the AUC of the two-factor combination for predicting the presence of EGFR mutation was 0.807. These results show that spectral CT parameters may be useful for predicting Ki-67 expression and the presence of EGFR mutation in NSCLC.
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Affiliation(s)
- Liaoyi Lin
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, No.160, Pujian Road, Shanghai, 200127, China
| | - Jiejun Cheng
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, No.160, Pujian Road, Shanghai, 200127, China
| | - Daoqiang Tang
- Department of Pathology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, No.160, Pujian Road, Shanghai, 200127, China
| | - Ying Zhang
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, No.160, Pujian Road, Shanghai, 200127, China
| | - Feng Zhang
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, No.160, Pujian Road, Shanghai, 200127, China
| | - Jianrong Xu
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, No.160, Pujian Road, Shanghai, 200127, China
| | - Handong Jiang
- Department of Respiratory, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, No.160, Pujian Road, Shanghai, 200127, China.
| | - Huawei Wu
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, No.160, Pujian Road, Shanghai, 200127, China.
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17
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Yan J, Wang H, Zhou H, He H, Qiu L, Wang Z. Correlation between expression of Ki-67 and MSCT signs in different types of lung adenocarcinoma. Medicine (Baltimore) 2020; 99:e18678. [PMID: 31914061 PMCID: PMC6959960 DOI: 10.1097/md.0000000000018678] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
To investigate the correlation between the proliferating cell nuclear antigen Ki-67 and the multislice computed tomography (MSCT) signs in different subtypes of lung adenocarcinoma.Ninety-five patients with lung adenocarcinoma confirmed by surgical pathology and treated between January 2017 and December 2017 were included. MSCT was performed before the operation, and the characteristics of the high-resolution CT (HRCT) signs of the lesions were compared with the Ki-67 immunohistochemistry results.The levels of Ki-67 in the 95 lung adenocarcinoma specimens were positively correlated with the malignancy of lung adenocarcinoma. Spearman correlation coefficient was 0.615. The expression of Ki-67 was positively correlated with the nodules' diameter, density, and lobulated sign, with Spearman correlation coefficients of 0.58, 0.554, and 0.436. There was no significant correlation with spiculation and pleural retraction, with correlation coefficients of 0.319/0.381.These findings suggest that the MSCT signs of different types of lung adenocarcinoma might be associated with the expression of Ki-67. Without replacing biopsy, the imaging features of pulmonary nodules could be comprehensively analyzed to evaluate the proliferation potential of preoperative nodules, but additional studies are needed for confirmation.
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Affiliation(s)
| | | | | | | | - Lin Qiu
- Medical Record Statistics Room, Zhoushan Hospital of Zhoushan City, Zhoushan, Zhejiang, PR China
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18
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Li Q, Ma J, Li H, Xu W, Cao Z, Liu S, Chen L, Gao S, Yan T, Li D, Wang X, Yue Y, Zhao Z, Wang X, Yang H, Zhao H, Yu Y, Zhang Y, Fan F, Wang Y. Correlation Between Uptake of 18F-FDG During PET/CT and Ki-67 Expression in Patients Newly Diagnosed With Multiple Myeloma Having Extramedullary Involvement. Technol Cancer Res Treat 2019; 18:1533033819849067. [PMID: 31092140 PMCID: PMC6535751 DOI: 10.1177/1533033819849067] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The aim of this study was to evaluate the relationship of prognosis of patients with multiple myeloma having extramedullary involvement (EMM) with the 18F- fluorodeoxyglucose(18F-FDG) maximum standardized uptake value and the expression of Ki-67 in biopsy samples. Sixty-five patients were newly diagnosed with multiple myeloma presenting with EMM at our hospital from January 2005 to January 2015. Of these 65 patients, 20 were enrolled in this study. Over the last decade, both the maximum standardized uptake value and Ki-67 expression in these extramedullary lesions significantly correlated with progression-free survival, respectively (P= .039, P =.009). After combining—the maximum standardized uptake value and the Ki-67 expression as an integral—there was a significant correlation between both the overall survival (P = .027) and progression-free survival (P= .014). Patients have poor outcomes when EMM is detected at presentation. Both the maximum standardized uptake value and Ki-67 expression could aid in accurately evaluating EMM patient prognosis.
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Affiliation(s)
- Qian Li
- 1 Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer. Tianjin's Clinical Research Center for Cancer. Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,2 Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, China.,They are co-first authors and have contributed equally to this article
| | - Jing Ma
- 1 Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer. Tianjin's Clinical Research Center for Cancer. Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,They are co-first authors and have contributed equally to this article
| | - Han Li
- 1 Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer. Tianjin's Clinical Research Center for Cancer. Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Wengui Xu
- 1 Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer. Tianjin's Clinical Research Center for Cancer. Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Zeng Cao
- 1 Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer. Tianjin's Clinical Research Center for Cancer. Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Su Liu
- 1 Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer. Tianjin's Clinical Research Center for Cancer. Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Lin Chen
- 1 Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer. Tianjin's Clinical Research Center for Cancer. Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Shuang Gao
- 1 Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer. Tianjin's Clinical Research Center for Cancer. Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Tinghui Yan
- 1 Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer. Tianjin's Clinical Research Center for Cancer. Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Dongying Li
- 1 Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer. Tianjin's Clinical Research Center for Cancer. Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Xue Wang
- 1 Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer. Tianjin's Clinical Research Center for Cancer. Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Yuanfang Yue
- 1 Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer. Tianjin's Clinical Research Center for Cancer. Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Zhigang Zhao
- 1 Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer. Tianjin's Clinical Research Center for Cancer. Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Xiaofang Wang
- 1 Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer. Tianjin's Clinical Research Center for Cancer. Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Hongliang Yang
- 1 Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer. Tianjin's Clinical Research Center for Cancer. Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Haifeng Zhao
- 1 Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer. Tianjin's Clinical Research Center for Cancer. Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Yong Yu
- 1 Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer. Tianjin's Clinical Research Center for Cancer. Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Yizhuo Zhang
- 1 Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer. Tianjin's Clinical Research Center for Cancer. Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Feiyue Fan
- 3 Institute of Laboratory Animal Sciences, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Yafei Wang
- 1 Department of Hematology and Blood and Marrow Transplantation, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer. Tianjin's Clinical Research Center for Cancer. Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
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19
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Gourzones C, Bret C, Moreaux J. Treatment May Be Harmful: Mechanisms/Prediction/Prevention of Drug-Induced DNA Damage and Repair in Multiple Myeloma. Front Genet 2019; 10:861. [PMID: 31620167 PMCID: PMC6759943 DOI: 10.3389/fgene.2019.00861] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 08/19/2019] [Indexed: 12/28/2022] Open
Abstract
Multiple myeloma (MM) is a malignancy characterized by accumulation of malignant plasma cells within the bone marrow (BM). MM is considered mostly without definitive treatment because of the inability of standard of care therapies to overcome drug-resistant relapse. Genotoxic agents are used in the treatment of MM and exploit the fact that DNA double-strand breaks are highly cytotoxic for cancer cells. However, their mutagenic effects are well-established and described. According to these effects, chemotherapy could cause harmful DNA damage associated with new driver genomic abnormalities providing selective advantage, drug resistance, and higher relapse risk. Several mechanisms associated with MM cell (MMC) resistance to genotoxic agents have been described, underlining MM heterogeneity. The understanding of these mechanisms provides several therapeutic strategies to overcome drug resistance and limit mutagenic effects of treatment in MM. According to this heterogeneity, adopting precision medicine into clinical practice, with the development of biomarkers, has the potential to improve MM disease management and treatment.
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Affiliation(s)
| | - Caroline Bret
- IGH, CNRS, Univ Montpellier, France.,Department of Biological Hematology, CHU Montpellier, Montpellier, France.,Univ Montpellier, UFR de Médecine, Montpellier, France
| | - Jerome Moreaux
- IGH, CNRS, Univ Montpellier, France.,Department of Biological Hematology, CHU Montpellier, Montpellier, France.,Univ Montpellier, UFR de Médecine, Montpellier, France.,Institut Universitaire de France, Paris, France
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20
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Gonzalez-McQuire S, Dimopoulos MA, Weisel K, Bouwmeester W, Hájek R, Campioni M, Bennison C, Xu W, Pantiri K, Hensen M, Terpos E, Knop S. Development of an Initial Conceptual Model of Multiple Myeloma to Support Clinical and Health Economics Decision Making. MDM Policy Pract 2019; 4:2381468318814253. [PMID: 30729167 PMCID: PMC6350154 DOI: 10.1177/2381468318814253] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 09/23/2018] [Indexed: 12/22/2022] Open
Abstract
Background. We aimed to develop and validate a conceptual model of multiple myeloma (MM) that characterizes the attributes affecting disease progression and patient outcomes, and the relationships between them. Methods. Systematic and targeted literature reviews identified disease- and patient-specific attributes of MM that affect disease progression and outcomes. These attributes were validated by a Delphi panel of four international MM experts, and a physician-validated model was constructed. Real-world clinical data from the Czech Registry of Monoclonal Gammopathies (RMG) was used to confirm the relationships between attributes using pairwise correlations and multiple Cox regression analysis. Results. The Delphi panel reached consensus that most cytogenetic abnormalities influenced disease activity, which results in symptoms and complications and affects overall survival (OS). Comorbidities and complications also affect OS. The entire panel agreed that quality of life was influenced by comorbidities, age, complications, and symptoms. Consensus was not reached in some cases, in particular, the influence of del(17p) on complications. The relationships between attributes were confirmed using pairwise analysis of real-world data from the Czech RMG; most of the correlations identified were statistically significant and the strength of the correlations changed with successive relapses. Czech RMG data were also used to confirm significant predictors of OS included in the model, such as age, Eastern Cooperative Oncology Group performance status, and extramedullary disease. Conclusions. This validated conceptual model can be used for economic modeling and clinical decision making. It could also inform the development of disease-based models to explore the impact of disease progression and treatment on outcomes in patients with MM.
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Affiliation(s)
| | | | - Katja Weisel
- University Hospital of Tübingen, Tübingen,
Germany
| | | | - Roman Hájek
- Department of Hematooncology, University
Hospital Ostrava, Ostrava, Czech Republic
- Faculty of Medicine, University of Ostrava,
Ostrava, Czech Republic
| | | | | | - Weiwei Xu
- Pharmerit International, Rotterdam,
Netherlands
| | | | | | - Evangelos Terpos
- National and Kapodistrian University of Athens
School of Medicine, Athens, Greece
| | - Stefan Knop
- Würzburg University Medical Center, Würzburg,
Germany
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21
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Requirand G, Robert N, Boireau S, Vincent L, Seckinger A, Bouhya S, Ceballos P, Cartron G, Hose D, Klein B, Moreaux J. BrdU incorporation in multiparameter flow cytometry: A new cell cycle assessment approach in multiple myeloma. CYTOMETRY PART B-CLINICAL CYTOMETRY 2018; 96:209-214. [PMID: 30417559 DOI: 10.1002/cyto.b.21730] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 07/19/2018] [Accepted: 07/27/2018] [Indexed: 11/09/2022]
Abstract
BACKGROUND Mutiple myeloma (MM) is a neoplasia characterized by the accumulation of malignant plasma cells (PC) in the bone marrow. Although proliferation markers have been studied in MM, none of the current staging systems include them. Moreover, approaches used to analyze proliferation do not separate MM cells (MMCs) from normal PC. METHODS In this study, we combined multiparameter flow cytometry and BrdU incorporation or Ki67 staining to analyze MM cell proliferation in 44 monoclonal gammopathy of undetermined significance (MGUS), 153 newly diagnosed MM patients and 69 MM patients at relapse. The prognostic value of proliferation assessment was analyzed in 60 newly diagnosed patients treated with high-dose chemotherapy supported by autologous hematopoietic stem cell transplantation. RESULTS The median number of proliferating malignant PC significantly increases during MM disease progression. MM patients with a percentage of proliferating MMCs greater than 1.42% using BrdU/DAPI or greater than 1.1% using ki67/DAPI, are associated with a significantly shorter event free survival compared with patients with a lower percentage of proliferating MMCs. CONCLUSIONS Combination of flow cytometry with BrdU or ki67/DAPI staining could become a standard for the determination of MM cell proliferation. Furthermore, in the context of new effective myeloma treatment options, assessment of MM cell proliferation may be valuable, in clinical trials, to identify novel agents that could significantly affect the small proliferative compartment of MM cells. © 2018 International Clinical Cytometry Society.
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Affiliation(s)
- Guilhem Requirand
- CHU Montpellier, Department of Biological Hematology, Montpellier, France.,IGH, CNRS, University of Montpellier, Montpellier, France
| | - Nicolas Robert
- CHU Montpellier, Department of Biological Hematology, Montpellier, France.,IGH, CNRS, University of Montpellier, Montpellier, France
| | - Stéphanie Boireau
- CHU Montpellier, Department of Biological Hematology, Montpellier, France.,IGH, CNRS, University of Montpellier, Montpellier, France
| | - Laure Vincent
- CHU Montpellier, Department of Clinical Hematology, Montpellier, France
| | - Anja Seckinger
- Medizinische Klinik und Poliklinik V, Universitätsklinikum Heidelberg, Heidelberg, Germany.,Nationales Centrum für Tumorerkrankungen, Heidelberg, Germany
| | | | - Patrice Ceballos
- CHU Montpellier, Department of Clinical Hematology, Montpellier, France
| | - Guillaume Cartron
- CHU Montpellier, Department of Clinical Hematology, Montpellier, France.,University of Montpellier, UFR de Médecine, Montpellier, France
| | - Dirk Hose
- Medizinische Klinik und Poliklinik V, Universitätsklinikum Heidelberg, Heidelberg, Germany.,Nationales Centrum für Tumorerkrankungen, Heidelberg, Germany
| | - Bernard Klein
- CHU Montpellier, Department of Biological Hematology, Montpellier, France.,IGH, CNRS, University of Montpellier, Montpellier, France.,University of Montpellier, UFR de Médecine, Montpellier, France
| | - Jérôme Moreaux
- CHU Montpellier, Department of Biological Hematology, Montpellier, France.,IGH, CNRS, University of Montpellier, Montpellier, France.,University of Montpellier, UFR de Médecine, Montpellier, France.,UMR CNRS 5235, University of Montpellier, Montpellier, France
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22
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Gorska-Ponikowska M, Kuban-Jankowska A, Daca A, Nussberger S. 2-Methoxyestradiol Reverses the Pro-Carcinogenic Effect of L-Lactate in Osteosarcoma 143B Cells. Cancer Genomics Proteomics 2018; 14:483-493. [PMID: 29109098 DOI: 10.21873/cgp.20058] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 10/05/2017] [Accepted: 10/12/2017] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND/AIM According to the reverse Warburg effect, tumor cells may metabolize lactate as an energy source and shuttle L-lactate to neighboring cancer cells, adjacent stroma, and vascular endothelial cells, thus inducing metabolic reprogramming. An increased tumor L-lactate level strictly correlates with increased metastasis, tumor recurrence and a poor outcome. A potent anticancer agent that may act on L-lactate activated cells is 2-metoxyestradiol. Thus, the aim of the study was to evaluate whether a potent anticancer agent, 2-methoxyestradiol, is able to reverse L-lactate-induced metabolic reprogramming in osteosarcoma 143B cells. MATERIALS AND METHODS We used flow cytometry in order to determine cell death, autophagy, expression of KI-67, mitochondrial membrane depolarization. We performed cell proliferation assay in order to determine cell viability and cell migration assay to determine invasive potential of osteosarcoma cells. While, CalcuSyn software was used in order to evaluate the interaction between 2-methoxyestradiol and L-lactate. RESULTS We demonstrated that 2-methoxyestradiol abolished L-lactate-induced migration and proliferation of osteosarcoma cells. Moreover, we observed that this effect was associated with regulation of Ki-67 and induction of autophagy. CONCLUSION 2-Methoxyestradiol is a potent anticancer agent also under metabolic reprogramming conditions.
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Affiliation(s)
- Magdalena Gorska-Ponikowska
- Department of Medical Chemistry, Medical University of Gdansk, Gdansk, Poland .,Department of Biophysics, Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, Stuttgart, Germany
| | | | - Agnieszka Daca
- Department of Pathology and Experimental Rheumatology, Medical University of Gdansk, Gdansk, Poland
| | - Stephan Nussberger
- Department of Biophysics, Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, Stuttgart, Germany
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23
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Ely S, Forsberg P, Ouansafi I, Rossi A, Modin A, Pearse R, Pekle K, Perry A, Coleman M, Jayabalan D, Di Liberto M, Chen-Kiang S, Niesvizky R, Mark TM. Cellular Proliferation by Multiplex Immunohistochemistry Identifies High-Risk Multiple Myeloma in Newly Diagnosed, Treatment-Naive Patients. CLINICAL LYMPHOMA MYELOMA & LEUKEMIA 2017; 17:825-833. [DOI: 10.1016/j.clml.2017.09.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 08/07/2017] [Accepted: 09/11/2017] [Indexed: 10/18/2022]
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24
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Zatula A, Dikic A, Mulder C, Sharma A, Vågbø CB, Sousa MML, Waage A, Slupphaug G. Proteome alterations associated with transformation of multiple myeloma to secondary plasma cell leukemia. Oncotarget 2017; 8:19427-19442. [PMID: 28038447 PMCID: PMC5386695 DOI: 10.18632/oncotarget.14294] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Accepted: 11/30/2016] [Indexed: 01/22/2023] Open
Abstract
Plasma cell leukemia is a rare and aggressive plasma cell neoplasm that may either originate de novo (primary PCL) or by leukemic transformation of multiple myeloma (MM) to secondary PCL (sPCL). The prognosis of sPCL is very poor, and currently no standard treatment is available due to lack of prospective clinical studies. In an attempt to elucidate factors contributing to transformation, we have performed super-SILAC quantitative proteome profiling of malignant plasma cells collected from the same patient at both the MM and sPCL stages of the disease. 795 proteins were found to be differentially expressed in the MM and sPCL samples. Gene ontology analysis indicated a metabolic shift towards aerobic glycolysis in sPCL as well as marked down-regulation of enzymes involved in glycan synthesis, potentially mediating altered glycosylation of surface receptors. There was no significant change in overall genomic 5-methylcytosine or 5-hydroxymethylcytosine at the two stages, indicating that epigenetic dysregulation was not a major driver of transformation to sPCL. The present study constitutes the first attempt to provide a comprehensive map of the altered protein expression profile accompanying transformation of MM to sPCL in a single patient, identifying several candidate proteins that can be targeted by currently available small molecule drugs. Our dataset furthermore constitutes a reference dataset for further proteomic analysis of sPCL transformation.
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Affiliation(s)
- Alexey Zatula
- Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, NTNU, Trondheim, Norway
| | - Aida Dikic
- Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, NTNU, Trondheim, Norway
| | - Celine Mulder
- Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, NTNU, Trondheim, Norway.,Present address: University of Utrecht, Utrecht, Holland
| | - Animesh Sharma
- Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, NTNU, Trondheim, Norway.,PROMEC Core Facility for Proteomics and Metabolomics, Norwegian University of Science and Technology, NTNU, Trondheim, and the Central Norway Regional Health Authority, Stjørdal, Norway
| | - Cathrine B Vågbø
- Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, NTNU, Trondheim, Norway.,PROMEC Core Facility for Proteomics and Metabolomics, Norwegian University of Science and Technology, NTNU, Trondheim, and the Central Norway Regional Health Authority, Stjørdal, Norway
| | - Mirta M L Sousa
- Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, NTNU, Trondheim, Norway
| | - Anders Waage
- Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, NTNU, Trondheim, Norway.,Department of Hematology, Department of Medicine, St. Olav's Hospital, Trondheim, Norway
| | - Geir Slupphaug
- Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, NTNU, Trondheim, Norway.,PROMEC Core Facility for Proteomics and Metabolomics, Norwegian University of Science and Technology, NTNU, Trondheim, and the Central Norway Regional Health Authority, Stjørdal, Norway
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25
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Smith D, Yong K. Advances in understanding prognosis in myeloma. Br J Haematol 2016; 175:367-380. [PMID: 27604166 DOI: 10.1111/bjh.14304] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 06/20/2016] [Indexed: 12/20/2022]
Abstract
In the last two decades outcomes in multiple myeloma (myeloma) have greatly improved, due to the introduction of newer, more effective therapies. This improvement is not uniform. Response to treatment and survival remains heterogeneous, with some patients living for 1-2 years whilst others are alive and progression-free at 10 years. This variation in outcome is due to patient characteristics plus features intrinsic to the myeloma tumour. Alongside the introduction of novel therapies there has been a greater understanding of disease biology and mechanisms of resistance. This has led to an increase in the number of prognostic markers that can be used in myeloma. This is important not only for more accurate counselling of patients in terms of disease outcome, but also in paving the way for risk-adapted therapy. Both newer and traditional prognostic markers need to be used in the context of planned therapy. Indeed, the prognostic value of certain markers varies according to which therapy the patient receives. As such, these prognostic factors will require constant re-evaluation as agents with new mechanisms of action are added into the myeloma treatment algorithm. This article summarises current concepts of prognostic markers in myeloma.
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Affiliation(s)
- Dean Smith
- Department of Haematology, City Hospital, Nottingham, UK.
| | - Kwee Yong
- Department of Haematology, University College, London, UK
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26
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Holien T, Misund K, Olsen OE, Baranowska KA, Buene G, Børset M, Waage A, Sundan A. MYC amplifications in myeloma cell lines: correlation with MYC-inhibitor efficacy. Oncotarget 2016; 6:22698-705. [PMID: 26087190 PMCID: PMC4673192 DOI: 10.18632/oncotarget.4245] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Accepted: 05/20/2015] [Indexed: 12/29/2022] Open
Abstract
In multiple myeloma, elevated MYC expression is related to disease initiation and progression. We found that in myeloma cell lines, MYC gene amplifications were common and correlated with MYC mRNA and protein. In primary cell samples MYC mRNA levels were also relatively high; however gene copy number alterations were uncommon. Elevated levels of MYC in primary myeloma cells have been reported to arise from complex genetic aberrations and are more common than previously thought. Thus, elevated MYC expression is achieved differently in myeloma cell lines and primary cells. Sensitivity of myeloma cell lines to the MYC inhibitor 10058-F4 correlated with MYC expression, supporting that the activity of 10058-F4 was through specific inhibition of MYC.
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Affiliation(s)
- Toril Holien
- K.G. Jebsen Center for Myeloma Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Kristine Misund
- K.G. Jebsen Center for Myeloma Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Oddrun Elise Olsen
- K.G. Jebsen Center for Myeloma Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Katarzyna Anna Baranowska
- K.G. Jebsen Center for Myeloma Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Glenn Buene
- K.G. Jebsen Center for Myeloma Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Magne Børset
- K.G. Jebsen Center for Myeloma Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Immunology and Transfusion Medicine, St. Olav's University Hospital, Trondheim, Norway
| | - Anders Waage
- K.G. Jebsen Center for Myeloma Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Hematology, St. Olav's University Hospital, Trondheim, Norway
| | - Anders Sundan
- K.G. Jebsen Center for Myeloma Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,CEMIR (Centre of Molecular Inflammation Research), Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
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27
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Park S, Lee E, Rhee S, Cho J, Choi S, Lee S, Eo JS, Pahk K, Choe JG, Kim S. Correlation between Semi-Quantitative (18)F-FDG PET/CT Parameters and Ki-67 Expression in Small Cell Lung Cancer. Nucl Med Mol Imaging 2016; 50:24-30. [PMID: 26941856 DOI: 10.1007/s13139-015-0363-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2015] [Revised: 07/26/2015] [Accepted: 08/05/2015] [Indexed: 12/16/2022] Open
Abstract
PURPOSE The aim of this study was to evaluate the relationship between semiquantitative parameters on (18)F-FDG PET/CT including maximum standardized uptake value (SUVmax), mean standardized uptake value (SUVmean), metabolic tumor volume (MTV), and total lesion glycolysis (TLG) and the expression level of Ki-67 in small-cell lung cancer (SCLC). METHODS Ninety-four consecutive patients with SCLC were enrolled in this study. They underwent (18)F-FDG PET/CT for initial evaluation of SCLC, and we measured SUVmax, avgSUVmean, MTVsum, and TLGtotal on (18)F-FDG PET/CT images. The protein expression of Ki-67 was examined by immunohistochemical staining. RESULTS Significant correlations were found between the MTVsum and Ki-67 labeling index (r = 0.254, p = 0.014) and the TLGtotal and Ki-67 labeling index (r = 0.239, p = 0.020). No correlation was found between the SUVmax and Ki-67 labeling index (r = 0.116, p = 0.264) and the avgSUVmean and Ki-67 labeling index (r = 0.031, p = 0.770). Dividing the Ki-67 expression level into three categories, it was suggested that increasing Ki-67 expression level caused a stepwise increase in the MTVsum and TLGtotal. (p = 0.028 and 0.039, respectively), but not the SUVmax and avgSUVmean (p = 0.526 and 0.729, respectively). CONCLUSION In conclusion, the volume-based parameters of (18)F-FDG PET/CT correlate with immunohistochemical staining of Ki-67 in SCLC. Measurement of the MTVsum and TLGtotal by (18)F-FDG PET/CT might be a simple, noninvasive, and useful method to determine the proliferative potential of cancer cells.
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Affiliation(s)
- Soyeon Park
- Department of Nuclear Medicine, Korea University Guro Hospital, Seoul, South Korea
| | - Eunsub Lee
- Department of Nuclear Medicine, Korea University Guro Hospital, Seoul, South Korea
| | - Seunghong Rhee
- Department of Nuclear Medicine, Korea University Anam Hospital, #73, Inchon-ro, Seongbuk-gu, Seoul, 136-705 South Korea
| | - Jaehyuk Cho
- Department of Nuclear Medicine, Korea University Anam Hospital, #73, Inchon-ro, Seongbuk-gu, Seoul, 136-705 South Korea
| | - Sunju Choi
- Department of Nuclear Medicine, Korea University Anam Hospital, #73, Inchon-ro, Seongbuk-gu, Seoul, 136-705 South Korea
| | - Sinae Lee
- Department of Nuclear Medicine, G Sam Hospital, Gunpo, South Korea
| | - Jae Seon Eo
- Department of Nuclear Medicine, Korea University Guro Hospital, Seoul, South Korea
| | - Kisoo Pahk
- Department of Nuclear Medicine, Korea University Anam Hospital, #73, Inchon-ro, Seongbuk-gu, Seoul, 136-705 South Korea ; Department of Neuroscience, College of Medicine, Korea University, Seoul, South Korea
| | - Jae Gol Choe
- Department of Nuclear Medicine, Korea University Anam Hospital, #73, Inchon-ro, Seongbuk-gu, Seoul, 136-705 South Korea
| | - Sungeun Kim
- Department of Nuclear Medicine, Korea University Anam Hospital, #73, Inchon-ro, Seongbuk-gu, Seoul, 136-705 South Korea
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28
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Møller HEH, Preiss BS, Pedersen P, Kristensen IB, Hansen CT, Frederiksen M, Abildgaard N, Møller MB. Clinicopathological features of plasmablastic multiple myeloma: a population-based cohort. APMIS 2015; 123:652-8. [PMID: 26152595 DOI: 10.1111/apm.12411] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 03/19/2015] [Indexed: 01/23/2023]
Abstract
Multiple myeloma (MM) is a common malignant hematological disease displaying considerable heterogeneity. Historical data indicate a prognostic significance of plasmablastic morphology, proliferation, and adverse cytogenetics, but there is little knowledge on the degree of interdependency of these parameters. The aim of this study was to study the degree of overlap between these variables. In a consecutive population-based cohort of 194 untreated MM patients, morphology, and proliferation index, using immunohistochemical double staining for Ki-67 and CD138, was analyzed. In addition, cytogenetic changes were studied by karyotyping and fluorescence in situ hybridization (FISH). Plasmablastic morphology correlated with unfavorable clinical features, high proliferation index, high percentage of plasma cell infiltration in the bone marrow, abnormal karyotype, and del(13q) detected by karyotyping, which indicates that plasmablastic morphology reflects advanced and highly proliferative disease. However, plasmablastic morphology did not correlate with established adverse prognostic cytogenetics identified by FISH, for example, t(4;14), t(14;16) and del(17p).
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Affiliation(s)
- Hanne E H Møller
- Department of Pathology, Odense University Hospital, Odense, Denmark
| | - Birgitte S Preiss
- Department of Pathology, Odense University Hospital, Odense, Denmark
| | - Per Pedersen
- Department of Haematology, SVS Esbjerg, Esbjerg, Denmark
| | - Ida B Kristensen
- Department of Haematology, Odense University Hospital, Odense, Denmark
| | | | | | - Niels Abildgaard
- Department of Haematology, Odense University Hospital, Odense, Denmark
| | - Michael B Møller
- Department of Pathology, Odense University Hospital, Odense, Denmark
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29
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Peng M, Peng F, Zhang C, Wang Q, Li Z, Hu H, Liu S, Xu B, Zhu W, Han Y, Lin Q. Preoperative Prediction of Ki-67 Labeling Index By Three-dimensional CT Image Parameters for Differential Diagnosis Of Ground-Glass Opacity (GGO). PLoS One 2015; 10:e0129206. [PMID: 26061252 PMCID: PMC4465676 DOI: 10.1371/journal.pone.0129206] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 05/07/2015] [Indexed: 12/16/2022] Open
Abstract
The aim of this study was to predict Ki-67 labeling index (LI) preoperatively by three-dimensional (3D) CT image parameters for pathologic assessment of GGO nodules. Diameter, total volume (TV), the maximum CT number (MAX), average CT number (AVG) and standard deviation of CT number within the whole GGO nodule (STD) were measured by 3D CT workstation. By detection of immunohistochemistry and Image Software Pro Plus 6.0, different Ki-67 LI were measured and statistically analyzed among preinvasive adenocarcinoma (PIA), minimally invasive adenocarcinoma (MIA) and invasive adenocarcinoma (IAC). Receiver operating characteristic (ROC) curve, Spearman correlation analysis and multiple linear regression analysis with cross-validation were performed to further research a quantitative correlation between Ki-67 labeling index and radiological parameters. Diameter, TV, MAX, AVG and STD increased along with PIA, MIA and IAC significantly and consecutively. In the multiple linear regression model by a stepwise way, we obtained an equation: prediction of Ki-67 LI=0.022*STD+0.001* TV+2.137 (R=0.595, R’s square=0.354, p<0.001), which can predict Ki-67 LI as a proliferative marker preoperatively. Diameter, TV, MAX, AVG and STD could discriminate pathologic categories of GGO nodules significantly. Ki-67 LI of early lung adenocarcinoma presenting GGO can be predicted by radiologic parameters based on 3D CT for differential diagnosis.
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Affiliation(s)
- Mingzheng Peng
- Department of Thoracic Surgery, Shanghai First People’s Hospital Affiliated to The Shanghai Jiao Tong University School Of Medicine, Shanghai, China
| | - Fei Peng
- Department of Nephrology, People's Hospital of Hunan Province Affiliated to Hunan Normal University School Of Medicine, Changsha, Hunan Province, China
| | - Chengzhong Zhang
- Department of Radiology, Shanghai First People’s Hospital Affiliated to The Shanghai Jiao Tong University School Of Medicine, Shanghai, China
| | - Qingguo Wang
- Department of Radiology, Shanghai First People’s Hospital Affiliated to The Shanghai Jiao Tong University School Of Medicine, Shanghai, China
| | - Zhao Li
- Department of Thoracic Surgery, Shanghai First People’s Hospital Affiliated to The Shanghai Jiao Tong University School Of Medicine, Shanghai, China
| | - Haiyang Hu
- Department of Thoracic Surgery, Shanghai First People’s Hospital Affiliated to The Shanghai Jiao Tong University School Of Medicine, Shanghai, China
| | - Sida Liu
- Department of Thoracic Surgery, Shanghai First People’s Hospital Affiliated to The Shanghai Jiao Tong University School Of Medicine, Shanghai, China
| | - Binbin Xu
- Department of Thoracic Surgery, Shanghai First People’s Hospital Affiliated to The Shanghai Jiao Tong University School Of Medicine, Shanghai, China
| | - Wenzhuo Zhu
- Department of Thoracic Surgery, Shanghai First People’s Hospital Affiliated to The Shanghai Jiao Tong University School Of Medicine, Shanghai, China
| | - Yudong Han
- Department of Thoracic Surgery, Shanghai First People’s Hospital Affiliated to The Shanghai Jiao Tong University School Of Medicine, Shanghai, China
| | - Qiang Lin
- Department of Thoracic Surgery, Shanghai First People’s Hospital Affiliated to The Shanghai Jiao Tong University School Of Medicine, Shanghai, China
- * E-mail:
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Isoda A, Kaira K, Iwashina M, Oriuchi N, Tominaga H, Nagamori S, Kanai Y, Oyama T, Asao T, Matsumoto M, Sawamura M. Expression of L-type amino acid transporter 1 (LAT1) as a prognostic and therapeutic indicator in multiple myeloma. Cancer Sci 2014; 105:1496-502. [PMID: 25220100 PMCID: PMC4462375 DOI: 10.1111/cas.12529] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Revised: 08/22/2014] [Accepted: 08/29/2014] [Indexed: 12/27/2022] Open
Abstract
L-type amino-acid transporter 1 (LAT1) plays a key role in cell growth and survival. To determine the prognostic significance of LAT1 in multiple myeloma (MM), we investigated the expression of LAT1 and its functional subunit, 4Fc heavy chain (CD98), on myeloma cells by immunohistochemistry in 100 newly diagnosed MM patients. High expression (moderate or strong staining intensity) of LAT1 and CD98 was detected in 56% and 45% of patients, respectively. The LAT1 expression score was positively correlated with Ki-67 index (r = 0.631, P < 0.001), and there was a statistically significant difference in Durie-Salmon stage between patients with high and low LAT1 expression (P = 0.03). In 43 patients treated with melphalan and prednisolone, the overall response rate was significantly higher in the high LAT1 expression group (60.0%) than in the low LAT1 expression group (17.6%) (P = 0.03). Multivariate analysis confirmed that high expression of LAT1 was a significant prognostic factor for predicting poor overall survival independently from the International Staging System (both P = 0.01). Here, we show that the overexpression of LAT1 is significantly associated with high proliferation and poor prognosis in newly diagnosed MM patients. Thus, LAT1 may be a promising pathological marker for identifying high-risk MM.
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Affiliation(s)
- Atsushi Isoda
- Department of Hematology, National Hospital Organization Nishigunma Hospital, Gunma, Japan
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31
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Cho BJ, Yu HG. Risk factors for intraocular involvement in patients with primary central nervous system lymphoma. J Neurooncol 2014; 120:523-9. [DOI: 10.1007/s11060-014-1581-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Accepted: 08/06/2014] [Indexed: 02/02/2023]
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van de Donk NWCJ, Sonneveld P. Diagnosis and risk stratification in multiple myeloma. Hematol Oncol Clin North Am 2014; 28:791-813. [PMID: 25212883 DOI: 10.1016/j.hoc.2014.06.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Multiple myeloma (MM) is a tumor of monoclonal plasma cells, which produce a monoclonal antibody and expand predominantly in the bone marrow. Patients present with hypercalcemia, renal impairment, anemia, and/or bone disease. Only patients with symptomatic MM require therapy, whereas asymptomatic patients receive regular follow-up. Survival of patients with MM is very heterogeneous. The variety in outcome is explained by host factors as well as tumor-related characteristics reflecting biology of the MM clone and tumor burden. The identification of cytogenetic abnormalities by fluorescence in situ hybridization is currently the most important and widely available prognostic factor in MM.
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Affiliation(s)
- Niels W C J van de Donk
- Department of Hematology, University Medical Center Utrecht, Heidelberglaan 100, Utrecht 3584CX, The Netherlands
| | - Pieter Sonneveld
- Department of Hematology, Erasmus MC Cancer Institute, 's Gravendijkwal 230, Rotterdam 3015CE, The Netherlands.
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Lindboe CF, Lyckander LG, Hansen HB. Comparison of Monoclonal Ki-67-Equivalent Antibodies. J Histotechnol 2013. [DOI: 10.1179/his.2005.28.1.25] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Relationship between circulating BAFF serum levels with proliferating markers in patients with multiple myeloma. BIOMED RESEARCH INTERNATIONAL 2013; 2013:389579. [PMID: 23936794 PMCID: PMC3727116 DOI: 10.1155/2013/389579] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2013] [Revised: 06/09/2013] [Accepted: 06/23/2013] [Indexed: 01/07/2023]
Abstract
In multiple myeloma, there are many factors influencing the growth of the malignant clone in direct and indirect manners. BAFF is a growth factor for myeloma cells. The aim of the study was to measure its circulating levels in 54 pretreatment patients, along with serum levels of other proliferation markers, such as interleukins-6, -10, and -15, CRP, and beta-2 microglobulin, as well as bone marrow plasma cell infiltration and expression of Ki-67 PI, in various stages of the disease and after effective treatment in 28 of them. Serum levels of the previously mentioned factors were measured by ELISA, whereas bone marrow plasma cell infiltration and Ki-67 expression were estimated immunohistochemically. All measured parameters were higher in pretreated myeloma patients compared to healthy population and were also increasing with the progression of the disease. They all also decreased after effective therapy. Furthermore, all pretreatment values correlated to each other. BAFF seems to be an important growth factor for myeloma plasma cells. Measuring its serum levels, along with the previously mentioned cytokines, may provide important information regarding the degree of myeloma cells' proliferation. Therefore, they all could be used as markers of proliferation and disease activity.
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Tsirakis G, Pappa CA, Kaparou M, Boula A, Katsomitrou V, Xekalou A, Kyriakaki S, Alexandrakis MG. The relationship between soluble receptor of interleukin-6 with angiogenic cytokines and proliferation markers in multiple myeloma. Tumour Biol 2012; 34:859-64. [PMID: 23242610 DOI: 10.1007/s13277-012-0618-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2012] [Accepted: 12/03/2012] [Indexed: 12/16/2022] Open
Abstract
Soluble interleukin-6 receptor (sIL-6R) is part of IL-6 receptor that may stimulate cells that do not express the whole molecule. It may enhance myeloma cell proliferation and furthermore angiogenesis. The aim of the study was to evaluate the clinical significance and the relationship between serum levels of sIL-6R, with various stimulators of angiogenesis, such as hepatocyte growth factor (HGF) and interleukin-18 (IL-18) and with markers of proliferation, such as beta-2 microglobulin (B2M) levels and plasma cell Ki-67 proliferation index in the bone marrow, in patients with multiple myeloma (MM). We studied 45 newly diagnosed MM patients. Serum levels of sIL-6R, HGF, IL-18, and B2M and Ki-67 proliferation index (Ki-67 PI) in bone marrow's plasma cells were determined. The mean concentrations of sIL-6R, HGF, IL-18, and B2M and the value of Ki-67 were significantly higher in the patients compared to controls and with increasing disease stage. sIL-6R was strongly positively correlated with HGF, IL-18, B2M, and Ki-67 PI. There is a positive correlation between plasma cell growth, as determined by Ki-67 PI, and different angiogenic cytokines, such as HGF and IL-18, with sIL-6R. This relationship suggests the significant role of these cytokines in the proliferation and disease activity in MM patients.
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Affiliation(s)
- George Tsirakis
- Department of Hematology, University Hospital of Heraklion, P.O. Box 1352, Voutes, Heraklion, 71110, Greece
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Jakobsen JN, Sørensen JB. Clinical impact of ki-67 labeling index in non-small cell lung cancer. Lung Cancer 2012; 79:1-7. [PMID: 23137549 DOI: 10.1016/j.lungcan.2012.10.008] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2012] [Revised: 09/27/2012] [Accepted: 10/15/2012] [Indexed: 02/06/2023]
Abstract
The ki-67 index is a marker of proliferation in malignant tumors. Studies from the period 2000 to 2012 on the prognostic and predictive value of ki-67 labeling index (LI) in non-small cell cancer (NSCLC) are reviewed. Twenty-eight studies reported on the prognostic value of ki-67 index with various endpoints. No consensus on the prognostic value of ki-67 LI was found among the published studies neither according to disease stage nor histological subtype. Comparison of studies is hampered by differences in patient populations, methodologies and cut-off values. Five studies explored the predictive value of ki-67 to chemotherapy and none revealed significant influence. Ki-67 index seems to be of prognostic influence in NSCLC although largely variable cut-off levels have been used in the various studies and standardization of methodology is required. The relative importance of ki-67 compared to newer biomarkers has not been explored. It is likely that a signature of several biomarkers in combination may be necessary to more sufficiently stratify patients to various treatment options than is currently possible, especially when it comes to the question of the optimal use of classical chemotherapy. A predictive impact of ki-67 to treatment in NSCLC remains unclear.
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Affiliation(s)
- Jan Nyrop Jakobsen
- Department of Oncology, Finsencentre, Rigshospitalet, 9 Blegdamsvej, 2100 Copenhagen, Denmark.
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Linardi CCG, Martinez G, Velloso EDRP, Leal AM, Kumeda CA, Buccheri V, Azevedo RS, Peliçario LM, Dorlhiac-Llacer P. Evaluation of chromosomal abnormalities by cIg-FISH and association with proliferative and apoptotic indexes in multiple myeloma. Braz J Med Biol Res 2012; 45:1074-9. [PMID: 22911347 PMCID: PMC3854150 DOI: 10.1590/s0100-879x2012007500135] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Accepted: 08/01/2012] [Indexed: 11/21/2022] Open
Abstract
Eighty-six newly diagnosed multiple myeloma (MM) patients from a public hospital of São Paulo (Brazil) were evaluated by cIg-FISH for the presence of del(13)(q14), t(4;14)(p16.3;q32) and del(17)(p13). These abnormalities were observed in 46.5, 9.3, and 7.0% of the patients, respectively. In order to identify the possible role of del(13)(q14) in the physiopathology of MM, we investigated the association between this abnormality and the proliferative and apoptotic indexes of plasma cells. When cases demonstrating t(4;14)(p16.3;q32) and del(17)(p13) were excluded from the analysis, we observed a trend towards a positive correlation between the proportion of cells carrying del(13)(q14) and plasma cell proliferation, determined by Ki-67 expression (r = 0.23, P = 0.06). On the other hand, no correlation between the proportion of cells carrying del(13)(q14) and apoptosis, determined by annexin-V staining, was detected (r = 0.05, P = 0.69). In general, patients carrying del(13)(q14) did not have lower survival than patients without del(13)(q14) (P = 0.15), but patients with more than 80% of cells carrying del(13)(q14) showed a lower overall survival (P = 0.033). These results suggest that, when del(13)(q14) is observed in a high proportion of malignant cells, it may have a role in determining MM prognosis. Another finding was a statistically significant lower overall survival of patients with t(4;14)(p16.3;q32) (P = 0.026). In the present study, almost half the patients with t(4;14)(p16.3;q32) died just after diagnosis, before starting treatment. This fact suggests that, in São Paulo, there may be even more patients with this chromosomal abnormality, but they probably die before being diagnosed due to unfavorable socioeconomic conditions. This could explain the low prevalence of this chromosomal abnormality observed in the present study.
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Affiliation(s)
- C C G Linardi
- Disciplina de Hematologia e Hemoterapia, Departamento de Clínica Médica, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil.
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Klein B, Seckinger A, Moehler T, Hose D. Molecular pathogenesis of multiple myeloma: chromosomal aberrations, changes in gene expression, cytokine networks, and the bone marrow microenvironment. Recent Results Cancer Res 2011; 183:39-86. [PMID: 21509680 DOI: 10.1007/978-3-540-85772-3_3] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
This chapter focuses on two aspects of myeloma pathogenesis: (1) chromosomal aberrations and resulting changes in gene and protein expression with a special focus on growth and survival factors of malignant (and normal) plasma cells and (2) the remodeling of the bone marrow microenvironment induced by accumulating myeloma cells. We begin this chapter with a discussion of normal plasma cell generation, their survival, and a novel class of inhibitory factors. This is crucial for the understanding of multiple myeloma, as several abilities attributed to malignant plasma cells are already present in their normal counterpart, especially the production of survival factors and interaction with the bone marrow microenvironment (niche). The chapter closes with a new model of pathogenesis of myeloma.
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Hose D, Rème T, Hielscher T, Moreaux J, Messner T, Seckinger A, Benner A, Shaughnessy JD, Barlogie B, Zhou Y, Hillengass J, Bertsch U, Neben K, Möhler T, Rossi JF, Jauch A, Klein B, Goldschmidt H. Proliferation is a central independent prognostic factor and target for personalized and risk-adapted treatment in multiple myeloma. Haematologica 2010; 96:87-95. [PMID: 20884712 DOI: 10.3324/haematol.2010.030296] [Citation(s) in RCA: 158] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Proliferation of malignant plasma cells is a strong adverse prognostic factor in multiple myeloma and simultaneously targetable by available (e.g. tubulin polymerase inhibitors) and upcoming (e.g. aurora kinase inhibitors) compounds. DESIGN AND METHODS We assessed proliferation using gene expression-based indices in 757 samples including independent cohorts of 298 and 345 samples of CD138-purified myeloma cells from previously untreated patients undergoing high-dose chemotherapy, together with clinical prognostic factors, chromosomal aberrations, and gene expression-based high-risk scores. RESULTS In the two cohorts, 43.3% and 39.4% of the myeloma cell samples showed a proliferation index above the median plus three standard deviations of normal bone marrow plasma cells. Malignant plasma cells of patients in advanced stages or those harboring disease progression-associated gain of 1q21 or deletion of 13q14.3 showed significantly higher proliferation indices; patients with gain of chromosome 9, 15 or 19 (hyperdiploid samples) had significantly lower proliferation indices. Proliferation correlated with the presence of chromosomal aberrations in metaphase cytogenetics. It was significantly predictive for event-free and overall survival in both cohorts, allowed highly predictive risk stratification (e.g. event-free survival 12.7 versus 26.2 versus 40.6 months, P < 0.001) of patients, and was largely independent of clinical prognostic factors, e.g. serum β₂-microglobulin, International Staging System stage, associated high-risk chromosomal aberrations, e.g. translocation t(4;14), and gene expression-based high-risk scores. CONCLUSIONS Proliferation assessed by gene expression profiling, being independent of serum-β₂-microglobulin, International Staging System stage, t(4;14), and gene expression-based risk scores, is a central prognostic factor in multiple myeloma. Surrogating a biological targetable variable, gene expression-based assessment of proliferation allows selection of patients for risk-adapted anti-proliferative treatment on the background of conventional and gene expression-based risk factors.
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Affiliation(s)
- Dirk Hose
- Medizinische Klinik V, Universitätsklinikum Heidelberg, Im Neuenheimer Feld, Heidelberg, Germany.
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Kyrtsonis MC, Maltezas D, Tzenou T, Koulieris E, Bradwell AR. Staging systems and prognostic factors as a guide to therapeutic decisions in multiple myeloma. Semin Hematol 2009; 46:110-7. [PMID: 19389494 DOI: 10.1053/j.seminhematol.2009.02.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Multiple myeloma (MM) patients have a highly variable disease course and survival varies from a few months to more than 10 years. Numerous prognostic factors have been identified, including age, performance status (PS), serum albumin, beta2-microglobulin (beta2M), lactate dehydrogenase (LDH), renal function, genetic factors, and serum free light chains (sFLCs) or their ratio (sFLCR). Several models have been built to separate patients into various risk groups with different outcomes. Staging systems need to be simple, accurate, and readily available in order to effectively guide treatment decisions now that effective treatments exist that prolong survival. The International Staging System (ISS) is currently in use; it is highly prognostic but presents some limitations. We suggest that the ISS prognostic potential could be improved with the addition of sFLCR and eventually LDH.
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Affiliation(s)
- Marie-Christine Kyrtsonis
- First Department of Propedeutic Internal Medicine, National and Kapodistrian University of Athens Medical School, Laikon General Hospital, Athens, Greece.
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Gertz MA. Relevant prognostic features of multiple myeloma and the new International Staging System. Leuk Lymphoma 2009; 48:458-68. [PMID: 17454585 DOI: 10.1080/10428190601059753] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The new International Staging System should be reported in all future studies of multiple myeloma. However, the system fails to account for recent research findings pertaining to mechanisms of disease progression. This review describes development of the International Staging System and details prognostic factors that may further our understanding of the biology of multiple myeloma.
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Affiliation(s)
- Morie A Gertz
- Division of Hematology, Mayo Clinic, Rochester, MN 55905, USA.
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42
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Epigenetic dysregulation of secreted Frizzled-related proteins in multiple myeloma. Cancer Lett 2009; 281:24-31. [PMID: 19299079 DOI: 10.1016/j.canlet.2009.02.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2008] [Revised: 01/09/2009] [Accepted: 02/02/2009] [Indexed: 12/11/2022]
Abstract
We analysed the clinical impact of epigenetic dysregulation of the Wnt pathway in malignant plasma cell disorders. In multiple myeloma (MM) cell lines, aberrant promoter hypermethylation of the secreted Frizzled-related protein (SFRP) genes was a common event, and hypermethylation of SFRP1,-2 and -5 was associated with transcriptional silencing. Among 76 primary patient samples, the frequency of aberrant methylation was 35.5% for SFRP1, 52.6% for SFRP2, 1.3% for SFRP4 and 6.9% for SFRP5. Hypermethylation of SFRP1 and -2 genes was detected in monoclonal gammopathy of undetermined significance and all MM stages including plasma cell leukaemia (PCL), while SFRP5 methylation was restricted to advanced MM stages and PCL. Our data indicate that epigenetic silencing of Wnt antagonists is an early event in MM pathogenesis and that SFRP5 hypermethylation may play a role in disease progression.
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The Y-box binding protein YB-1 is associated with progressive disease and mediates survival and drug resistance in multiple myeloma. Blood 2007; 111:3714-22. [PMID: 18006704 DOI: 10.1182/blood-2007-05-089151] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Current knowledge about molecular mechanisms underlying disease progression and drug resistance in multiple myeloma (MM) is still limited. Here, we analyzed the potential pathogenetic role of the Y-box binding protein YB-1 in MM. YB-1 is a member of the cold-shock domain protein superfamily and involved in various cellular functions such as proliferation. Immunohistochemical analyses revealed that neither normal bone marrow (BM) plasma cells (PCs), premalignant PCs of patients with monoclonal gammopathy of unknown significance (MGUS), nor MM cells with a mature morphology showed expression of YB-1 in situ. In contrast, YB-1 was strongly expressed in situ in normal PC precursor blasts as well as in a MM subset and in vitro in all of the evaluated MM cell lines. The YB-1-expressing MM cells were characterized by an immature morphology and a highly proliferative phenotype as defined by Ki 67 expression. We observed that siRNA-mediated knockdown of YB-1 decreased proliferation and induced apoptosis in MM cells even in the presence of BM stromal cells. Furthermore, we found that overexpression of YB-1 mediated resistance toward doxorubicin-induced apoptosis in MM cells. Thus, YB-1 contributes to disease progression, survival, and drug resistance in MM and might therefore provide an attractive therapeutic target.
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Gastinne T, Leleu X, Duhamel A, Moreau AS, Franck G, Andrieux J, Lai JL, Coiteux V, Yakoub-Agha I, Bauters F, Harousseau JL, Zandecki M, Facon T. Plasma cell growth fraction using Ki-67 antigen expression identifies a subgroup of multiple myeloma patients displaying short survival within the ISS stage I. Eur J Haematol 2007; 79:297-304. [PMID: 17692103 DOI: 10.1111/j.1600-0609.2007.00915.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The current most powerful prognostic model in Multiple Myeloma (MM) combines beta-2 microglobulin (b2m) with albumin, corresponding to the International Staging System (ISS). However, the prognosis of patients within the ISS stage I (high albumin and low b2m) may vary. Ki-67 is a nuclear protein associated with cell proliferation. We retrospectively evaluated the percentage of bone marrow plasma cells expressing Ki-67 antigen (Ki-67 index) in a series of 174 untreated MM patients at diagnosis. Median survival was 51, 41 and 20 months respectively, and median Ki-67 index was 3.0%, 6.1% and 6.5% in ISS stages I, II, and III respectively. Independently of ISS, Ki-67 index > or =4% was highly predictive of adverse prognosis. Ki-67 index correlated with markers of intrinsic malignancy and with markers of tumour burden. Within ISS stage I, median survival was of 31 months (RR of death 2.65) in patients with Ki-67 index > or =4%. Eventually, the combination of Ki-67 with b2m produced an efficient prognostic model, which appeared most effective in our series when compared with b2m and KI-67 with chromosome 13 deletion models. In this series, we demonstrated that a proliferation marker provides clear-cut additional survival prognostic information to b2m into the ISS model.
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Tinguely M, Jenni B, Reineke T, Korol D, Kofler A, Rousson V, Dommann-Scherrer C, Maurer R, Moch H, Probst-Hensch NM. Chromosomal Translocations t(4;14), t(11;14) and Proliferation Rate Stratify Patients With Mature Plasma Cell Myelomas Into Groups With Different Survival Probabilities—A Molecular Epidemiologic Study on Tissue Microarrays. Am J Surg Pathol 2007; 31:690-6. [PMID: 17460451 DOI: 10.1097/01.pas.0000213399.87816.56] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Plasma cell myelomas (PMs) exhibit clinical and molecular heterogeneity. To date, morphology and immunohistochemistry on bone marrow trephines are of limited value to stratify patients into different prognostic categories. However, some chromosomal translocations are of prognostic and/or of predictive importance in PMs. In this study, the prognostic significance of morphology, CyclinD1 expression, proliferation index (Mib1) and presence of the translocations FGFR3/IgH [t(4;14)] and CCND1/IgH [t(11;14)] are compared in 119 patients with PM. Immunohistochemistry and fluorescence in situ hybridization analysis were carried out on a tissue microarray containing bone marrow trephines. Hundred and one PMs showed a mature morphology whereas 10 were immature. All but one PM carrying a translocation showed a mature morphology. Patients with a t(4;14) (12%) had a statistically significant shorter 1-year survival (P=0.004), whereas those with a t(11;14) (21%) had a trend towards a better clinical outcome. CyclinD1 protein expression was not significantly associated with survival. Besides the t(4;14), an immature morphology (P<0.001) and a proliferation index (Mib1) of more than 10% (P=0.002) were associated with a significantly worse outcome. A high occurrence of strong CyclinD1 protein expression in the tumor cells was predictive of either a t(11;14) or of a low level amplification of the CCND1 gene, suggesting that different molecular mechanisms may have lead to an over-expression of the CyclinD1 protein in PMs. These findings demonstrate that a high proliferation rate and translocations involving the IgH locus can stratify mature PMs into groups with distinct survival probabilities.
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Affiliation(s)
- Marianne Tinguely
- Institute of Surgical Pathology, University Zurich, Zurich, Switzerland.
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46
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Pappa C, Miyakis S, Tsirakis G, Sfiridaki A, Alegakis A, Kafousi M, Stathopoulos EN, Alexandrakis MG. Serum levels of interleukin-15 and interleukin-10 and their correlation with proliferating cell nuclear antigen in multiple myeloma. Cytokine 2007; 37:171-5. [PMID: 17446083 DOI: 10.1016/j.cyto.2007.02.022] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2006] [Revised: 12/04/2006] [Accepted: 02/19/2007] [Indexed: 10/23/2022]
Abstract
In order to determine prognostic factors characterizing multiple myeloma (MM) cell kinetics, bone marrow proliferative activity and serum Interleukin-10 (IL-10), and Interleukin-15 (IL-15) levels were measured in 40 newly diagnosed MM patients, compared with 10-age and sex-matched-healthy controls. Cell proliferation was evaluated by employing a monoclonal antibody directed against the proliferating cell nuclear antigen (PCNA), whereas IL-10 and IL-15 were measured with quantitative sandwich enzyme immunoassay methods. IL-15, IL-10 and PCNA were higher in the patient group than in controls (P<0.001). IL-10 levels, and PCNA increased significantly with increasing Durie-Salmon disease stage (I-III, P<0.002, and P=0.001, respectively). Serum IL-15 levels in MM stage III patients were elevated in comparison with stages I and II, the difference however, did not reach statistical significance. There was a significant positive correlation between serum IL-15 and IL-10 levels (r: 0.372, P<0.01), and between serum IL-10 and PCNA (r: 0.608, P<0.0001), as well as a positive correlation of serum IL-15 with PCNA, which marginally failed to reach statistical significance. Serum IL-15 levels are elevated in MM patients, increase with advancing stage, and correlate with Il-10 and PCNA. These proliferative factors may be useful in assessing disease progression in MM.
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Affiliation(s)
- C Pappa
- Department of Haematology, School of Medicine, University of Crete, Heraklion, Greece
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Neal CP, Garcea G, Doucas H, Manson MM, Sutton CD, Dennison AR, Berry DP. Molecular prognostic markers in resectable colorectal liver metastases: A systematic review. Eur J Cancer 2006; 42:1728-43. [PMID: 16815701 DOI: 10.1016/j.ejca.2006.01.056] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2005] [Accepted: 01/03/2006] [Indexed: 02/07/2023]
Abstract
BACKGROUND Determination of prognosis in patients with resectable colorectal liver metastases (CLM) is desirable in order to improve case selection for surgery and tailor adjuvant treatment according to individual recurrence risk. Conventional clinicopathological factors lack the sensitivity to accurately achieve this goal. Consideration of tumour biology and the identification of molecular prognostic markers may allow more accurate risk stratification. METHOD This systematic review examines evidence from published manuscripts looking at molecular markers in resectable colorectal liver metastases and their correlation with disease recurrence and survival following hepatectomy. RESULTS Studies have yielded promising results in the search for prognostic molecular markers of CLM. Molecular biomarkers from varied aspects of tumour biology have been examined and a number of these, including proliferation indices, telomerase, thymidylate synthase, microvessel density and thrombospondin-1 appear to have prognostic utility in this context. Validation of other markers, notably p53, has been limited by a failure of methodologies to account for their biological complexity. CONCLUSIONS A biomarker-based approach may yield significant benefits through informed treatment of resectable metastatic colorectal malignancy. Standardised retrospective analyses are necessary to confirm preliminary findings and identify existing and novel markers for inclusion into prospective studies. Assessment and verification of multiple molecular markers in this manner may allow molecular profiling of metastases and tailoring of therapy according to the biological aggressiveness of individual tumours. The advent of genomic- and proteomic-based technologies will allow the simultaneous analysis of multiple molecular markers and the derivation of disease profiles associated with disease recurrence and poor survival.
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Affiliation(s)
- C P Neal
- Department of Biochemistry, Cancer Biomarkers and Prevention Group, Biocentre, University of Leicester, University Road, Leicester LE1 7RH, United Kingdom.
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Affiliation(s)
- April Chiu
- Department of Pathology and Laboratory Medicine, Weill Medical College of Cornell University, New York, NY, USA
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Marković O, Marisavljević D, Cemerikić V, Vidović A, Bakrac M, Perunicić M, Suvajdzić N, Colović M. [Proliferative activity of myeloma cells determined by Ki-67 antibody: biological and clinical significance]. VOJNOSANIT PREGL 2005; 62:33-8. [PMID: 15715347 DOI: 10.2298/vsp0501033m] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
In this study we analyzed proliferative activity of myeloma cells and a possible correlation with selected clinical data, histological features and survival in 59 patients with newly diagnosed multiple myeloma (27 females and 32 males, mean age 62 years). Imunohistochemical method was applied using Ki-67 antibody on B5-fixed and paraffin-embedded bone marrow specimens to evaluate growth fraction of myeloma cells. Clinical staging was done according to the Durie-Salmon classification (4 patients had stage I disease, 16 patients stage II and 39 patients stage III). The number of Ki-67+ myeloma cells ranged from 1% to 36% (mean value 7%). In 39 of 59 patients (66.1%) number of Ki-67+ cells was less than 10% (cases with low proliferative index). Ki-67 expression significantly correlated with the clinical stage, beta2-microglobulin level, plasma cell morphology, volume of myeloma infiltration and the extent of osteolytic lesions. Patients with increased proliferative index (Ki-67+ cells > or = 10%) showed a significantly shorter survival compared to those with low proliferative index (14 months vs. 36 months, p = 0.023). However, this difference was not shown in multivariate analysis, particularly due to the high correlation between proliferative activity and plasma cell morphology and the volume of myeloma infiltration.
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