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Avery J, Chandhok N, Rainey C, Torres R, Huntington S, Isufi I, Seropian S, Xu ML, Foss F. Peripheral Blood Involvement at Staging in Patients With Aggressive Peripheral T-Cell Lymphoma. CLINICAL LYMPHOMA, MYELOMA & LEUKEMIA 2022; 22:680-689. [PMID: 35568635 DOI: 10.1016/j.clml.2022.04.019] [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: 11/29/2021] [Revised: 04/11/2022] [Accepted: 04/14/2022] [Indexed: 06/15/2023]
Abstract
INTRODUCTION Peripheral T-Cell Lymphomas (PTCL) are a rare subgroup of lymphomas with a poor outcome.Traditional prognostic measures rely heavily on disease stage, and with the advent of targeted treatment, further stratificationcriteria are needed to guide treatment. To date, the impact of blood involvement at diagnosis on outcomes has not been assessed. MATERIALS AND METHODS We retrospectively reviewed blood involvement by flow cytometry at diagnosis in 102 consecutivelytreated patients who had flow cytometry data available at diagnosis. Of these, 78 patients with nodal subtypes were identified andstudied in this analysis. RESULTS Of 78 patients with nodal subtypes of PTCL who had flow data available at the time ofdiagnosis, circulating populations of malignant T cells matching those in the biopsied lymph nodes were found in 21 patients bymultiparameter flow cytometry. A positive flow cytometry was highly correlated with bone marrow involvement. The patientswith a negative flow cytometry had a trend toward a longer median PFS compared to those with a positive flow but there was noimpact on overall survival. CONCLUSIONS Circulating malignant tumor cells can be found in the peripheral blood in a subset ofpatients with aggressive nodal T-cell lymphomas, including peripheral t-cell lymphoma not otherwise specified andangioimmunoblastic T-cell lymphomas, and blood involvement is correlated with bone marrow involvement.
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Affiliation(s)
| | | | - Chanelle Rainey
- Section of Hematology, Department of Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Richard Torres
- Laboratory Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Scott Huntington
- Section of Hematology, Department of Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Iris Isufi
- Section of Hematology, Department of Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Stuart Seropian
- Section of Hematology, Department of Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Mina L Xu
- Department of Hematopathology, Yale University School ofMedicine, New Haven, CT, USA
| | - Francine Foss
- Section of Hematology, Department of Medicine, Yale University School of Medicine, New Haven, CT, USA.
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Quirós C, Fonseca A, Alonso-Álvarez S, Moro-García MA, Alonso-Arias R, Morais LR, Álvarez-Menendez FV, Colado E. Development of an algorithm for the identification of leukemic hematolymphoid neoplasms in Primary Care patients. Diagnosis (Berl) 2021; 8:239-247. [PMID: 32284442 DOI: 10.1515/dx-2020-0021] [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: 02/04/2020] [Accepted: 02/26/2020] [Indexed: 11/15/2022]
Abstract
BACKGROUND Diagnosis of hematolymphoid neoplasm (HLN) requires different technologies which are performed on a patient basis instead of per protocol. We hypothesize that integration of hematimetric and cytological analysis along with multiparametric flow cytometry (MFC) provides a framework to evaluate peripheral blood (PB) samples from Primary Care. METHODS Samples from patients with persistent (>3 months) lymphocytosis (>5 × 109/L) and/or monocytosis (>109/L) or the presence of atypical and/or blast cells upon the smear review were analyzed by MFC concurrent to cytological analysis. MFC studies were carried out following standardized procedures. RESULTS In a 3-year period, smear review and MFC were performed simultaneously in 350 samples, demonstrating HLN in 194 cases (55.4%). In 156 cases, reactive cell populations were found. The combination of age, absolute lymphocyte count (ALC), hemoglobin and platelets provided the best correlation with MFC for the presence of a chronic lymphoproliferative disorder (CLPD) in lymphocytosis [area under the curve (AUC) 0.891, p < 0.05]. A model evaluating the probability of CLPD has been proposed and validated in an independent cohort. CONCLUSIONS A strategy to perform MFC studies following standardized procedures has proven to be useful to evaluate samples from patients in Primary Care centers for HLN diagnosis or reactive conditions, providing a sensitive and rapid clinical orientation and avoiding unnecessary consultations in routine clinical practice. The probability for the presence of CLPD in PB can be calculated and help guide decision-making regarding further testing.
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Affiliation(s)
- Covadonga Quirós
- Clinical Biochemistry Department, Hospital Universitario Central de Asturias, Oviedo, Spain
- Laboratory Medicine Department, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Ariana Fonseca
- Laboratory Medicine Department, Hospital Universitario Central de Asturias, Oviedo, Spain
- Hematology and Haemotherapy Department, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Sara Alonso-Álvarez
- Laboratory Medicine Department, Hospital Universitario Central de Asturias, Oviedo, Spain
- Hematology and Haemotherapy Department, Hospital Universitario Central de Asturias, Oviedo, Spain
| | | | - Rebeca Alonso-Arias
- Laboratory Medicine Department, Hospital Universitario Central de Asturias, Oviedo, Spain
- Immunology Department, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Lucía-Rita Morais
- Laboratory Medicine Department, Hospital Universitario Central de Asturias, Oviedo, Spain
- Hematology and Haemotherapy Department, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Francisco V Álvarez-Menendez
- Clinical Biochemistry Department, Hospital Universitario Central de Asturias, Oviedo, Spain
- Laboratory Medicine Department, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Enrique Colado
- Laboratory Medicine Department, Hospital Universitario Central de Asturias, Oviedo, Spain
- Hematology and Haemotherapy Department, Hospital Universitario Central de Asturias, Oviedo, Spain
- Laboratory Medicine Department, Hospital Universitario Central de Asturias, Avda. Roma s/n - 33011 Oviedo, Spain; Hematology and Haemotherapy Department, Hospital Universitario Central de Asturias, Avda. Roma s/n - 33011 Oviedo, Spain; and Hematology and Haemotherapy Department, Laboratory of Medicine, Hospital Universitario Central de Asturias, Oviedo, Spain, Phone: +34 985 10 80 00, Ext 37138
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Sun DZ, Song CQ, Xu YM, Dong XS. Role of the MAPK pathway in human lung epithelial-like A549 cells apoptosis induced by paraquat. Genet Mol Biol 2020; 43:e20190137. [PMID: 32251495 PMCID: PMC7198013 DOI: 10.1590/1678-4685-gmb-2019-0137] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 01/07/2020] [Indexed: 12/18/2022] Open
Abstract
This study aims to investigate the value of mitogen-activated protein kinases
(MAPKs) for paraquat (PQ)-induced apoptosis in human lung epithelial-like A549
cells and the specific mechanism. A549 cell apoptosis were induced by PQ. These
cells were divided into six groups: control group (cells were cultured in
RPMI-1640 medium); SP600125 group (cells were preconditioned with SP600125);
SB203580 group (cells were preconditioned with SB203580); PQ group (cells were
treated with PQ); SP600125+PQ group (cells were preconditioned with SP600125
following PQ); SB203580+PQ group (cells were preconditioned with SB203580
following PQ). The cell survival rate, apoptosis rate, and activities of
caspase-3 and -9 were detected. When compared with the control group, both
SP600125 and SB203580 groups had no significant difference in the detected
indicators. When compared with PQ group, the cells in both SP600125+PQ group and
SB203580+PQ group had significantly increased viability and level of
anti-apoptotic protein Bcl-2; and had decreased apoptotic rates, decreased
levels of caspase-3 and -9, and decreased level of pro-apoptotic protein Bax.
The ratio of p-JNK/JNK protein expression in the SP600125+PQ group significantly
decreased, while the ratio of the p-P38/P38 protein expression in the
SB203580+PQ group decreased. PQ induced A549 cell apoptosis through the MAPKs
pathway.
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Affiliation(s)
- Da-Zhuang Sun
- Department of Emergency, The First Affiliated Hospital, China Medical University, Shenyang 110001, China
| | - Chun-Qing Song
- Department of Emergency, The First Affiliated Hospital, China Medical University, Shenyang 110001, China
| | - Yong-Min Xu
- Department of Emergency, The First Affiliated Hospital, China Medical University, Shenyang 110001, China
| | - Xue-Song Dong
- Department of Emergency, The First Affiliated Hospital, China Medical University, Shenyang 110001, China
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Rivas E, Plapp FV, Cui W. Flow Cytometric, Morphologic, and Laboratory Comparative Study in Patients With Leukocytosis and Cytopenia. Am J Clin Pathol 2020; 153:266-273. [PMID: 31608361 DOI: 10.1093/ajcp/aqz160] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES We wanted to evaluate the effectiveness of flow cytometry immunophenotyping (FCI) as a screening test for patients with leukocytosis and cytopenia. METHODS We identified 320 patients during August 2016 to December 2016 and evaluated FCI and morphology of peripheral blood smears (PBSs). RESULTS The most common indications for FCI included history of hematologic malignancy (HHM, n = 126), leukocytosis (n = 80), and cytopenia (n = 53). Positive FCI rate was low with a range of 4.4% to 12.5% in patients with absolute neutrophilia regardless of HHM, if cases with circulating blasts were excluded. Patients with absolute lymphocytosis had a 93% positive FCI rate. Patients with HHM and pancytopenia showed a higher incidence of positive FCI findings than patients without HHM and with isolated cytopenia. PBS morphology correlated strongly with FCI (P = .0001). CONCLUSION PBS evaluation is an accurate and cost-effective screening test. FCI for patients with mature neutrophilia and isolated cytopenia has a very low yield.
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Affiliation(s)
| | - Fred V Plapp
- University of Kansas Medical Center, Kansas City
| | - Wei Cui
- University of Kansas Medical Center, Kansas City
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Zhang ML, Guo AX, Kadauke S, Dighe AS, Baron JM, Sohani AR. Machine Learning Models Improve the Diagnostic Yield of Peripheral Blood Flow Cytometry. Am J Clin Pathol 2020; 153:235-242. [PMID: 31603184 DOI: 10.1093/ajcp/aqz150] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
OBJECTIVES Peripheral blood flow cytometry (PBFC) is useful for evaluating circulating hematologic malignancies (HM) but has limited diagnostic value for screening. We used machine learning to evaluate whether clinical history and CBC/differential parameters could improve PBFC utilization. METHODS PBFC cases with concurrent/recent CBC/differential were split into training (n = 626) and test (n = 159) cohorts. We classified PBFC results with abnormal blast/lymphoid populations as positive and used two models to predict results. RESULTS Positive PBFC results were seen in 58% and 21% of training cases with and without prior HM (P < .001). % neutrophils, absolute lymphocyte count, and % blasts/other cells differed significantly between positive and negative PBFC groups (areas under the curve [AUC] > 0.7). Among test cases, a decision tree model achieved 98% sensitivity and 65% specificity (AUC = 0.906). A logistic regression model achieved 100% sensitivity and 54% specificity (AUC = 0.919). CONCLUSIONS We outline machine learning-based triaging strategies to decrease unnecessary utilization of PBFC by 35% to 40%.
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Affiliation(s)
- M Lisa Zhang
- Department of Pathology, Massachusetts General Hospital, Boston
| | - Alan X Guo
- Independent Researcher, Boston, MA, Philadelphia
| | - Stephan Kadauke
- Department of Pathology, University of Pennsylvania, Philadelphia
| | - Anand S Dighe
- Department of Pathology, Massachusetts General Hospital, Boston
| | - Jason M Baron
- Department of Pathology, Massachusetts General Hospital, Boston
| | - Aliyah R Sohani
- Department of Pathology, Massachusetts General Hospital, Boston
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