1
|
Immunohistochemical expression of transcription factors PAX5, OCT2, BCL6 and transcription regulator P53 in Non-Hodgkin lymphomas: A diagnostic cross-sectional study. Ann Med Surg (Lond) 2022; 78:103786. [PMID: 35600178 PMCID: PMC9119824 DOI: 10.1016/j.amsu.2022.103786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/08/2022] [Accepted: 05/10/2022] [Indexed: 11/21/2022] Open
Abstract
Background Non-Hodgkin lymphoma represents a heterogeneous group of tumors that constitute the seventh most common malignancy. Immunohistochemistry plays a major role in the detection of specific cell receptors. Transcription factors are a heterogeneous group of genes that play a critical role in the commitment, differentiation, and proliferation of specific cell types. Methods Paraffin-embedded tissue sections of non-Hodgkin lymphoma cases were selected, classified, and evaluated before staining with immunohistochemical markers (PAX5, OCT2, BCL6, and P53). Expression of the aforementioned markers was compared with histological subtypes and grades of lymphoma cases. Means of expression were also compared among histological subtypes. Results A total of 55 cases of NHL including 26 cases of low-grade lymphomas and 29 cases of high-grade lymphomas were included in the study. DLBCL and FL were the most common subtypes of high-grade and low-grade lymphomas respectively. Both PAX5 and OCT2 were positive in 44 cases of NHL (80%) including all cases of B-cell lymphomas. BCL6 and P53 demonstrated positive expression in 29.1% and 67.3% respectively. Interestingly, we found a significant association between the histological subtypes and the aforementioned markers (P-value<0.05). Discussion Expression of PAX5, OCT2, BCL, and P53 played a major role in the diagnosis and grading of non-Hodgkin lymphomas in our study. Both PAX5 and OCT2 provided more accuracy and specificity in the diagnosis of B-cell neoplasms compared to the classical B-cell markers. BCL6 expression reflected its role in germinal center formation in normal and malignant lymphoid tissues, and expression of P53 mirrored the accumulation of gene mutations in more aggressive lymphoma subtypes. Conclusion In this manuscript, we aimed to present a unique study that highlights the immunohistochemical expression of all the aforementioned factors among various histological subtypes of non-Hodgkin lymphomas with disparities in histological aggressiveness, highlighting a promising diagnostic and prognostic panel for non-Hodgkin lymphomas. Transcription factors are essential for the differentiation of B-cells. PAX5 and OCT2 provide more accuracy in the diagnosis of lymphomas. BCL6 expression reflects its role in germinal center formation. P53 expression is higher in aggressive subtypes.
Collapse
|
2
|
Almiski M, Ng DP, Moltzan C, Francischetti IM, Sellen LD. Pax-5 negative B-cell Lymphoma. HUMAN PATHOLOGY: CASE REPORTS 2021. [DOI: 10.1016/j.ehpc.2021.200474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
3
|
Nassar WAEFMI, Mohamed Yehia El Hennawy A, Mohamed Ahmed Gabal S, Salah El-Din Abd El-Magid M. Immunohistochemical study of PAX5 expression in lymphoid neoplasms. Open Access Maced J Med Sci 2021. [DOI: 10.3889/oamjms.2021.6228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
ashshdgd
Collapse
|
4
|
Ohno H, Nakagawa M, Kishimori C, Fukutsuka K, Maekawa F, Takeoka K, Hayashida M, Sakamoto S, Akasaka T, Honjo G. Diffuse large B-cell lymphoma carrying t(9;14)(p13;q32)/PAX5-immunoglobulin heavy chain gene is characterized by nuclear positivity of MUM1 and PAX5 by immunohistochemistry. Hematol Oncol 2020; 38:171-180. [PMID: 31955451 DOI: 10.1002/hon.2716] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 10/25/2019] [Accepted: 01/12/2020] [Indexed: 11/06/2022]
Abstract
We described four patients with diffuse large B-cell lymphoma (DLBCL) carrying t(9;14)(p13;q32) that places the PAX5 adjacent to the immunoglobulin heavy chain (IGH) gene. Ages ranged between 63 and 80, and three were female. One developed a nodal disease, and the other three involved extranodal organs. The lymphoma cells were CD10- /BCL6- /MUM1+ in three and CD10+ /BCL6+ /MUM1+ in one. BCL2 was weak or negative. All had t(9;14)(p13;q32), and three had additional 14q32/IGH translocations or +der(14)t(9;14)(p13;q32). Fluorescence in situ hybridization using the PAX5 break-apart probe showed that the locus was disrupted between the 5' and 3' probes or within the 5' probe. Immunohistochemistry (IHC) using a monoclonal antibody against PAX5 showed strong nuclear positivity in all four patients. Cell block IHC of a CD30+ DLBCL cell line, KIS-1, which carried the t(9;14)(p13;q32) and PAX5-IGH fusion gene, reproduced the CD10- /BCL6- /MUM1+ immunophenotype, low-level BCL2, and strong nuclear PAX5. Uniform nuclear positivity of MUM1 in all four cases and KIS-1 cells suggest that these lymphomas arose at a late stage of B-cell differentiation, where expression of PAX5 physiologically becomes downregulated. It is therefore possible that high-level PAX5 resulting from t(9;14)(p13;q32) at this stage of differentiation perturbs the plasma cell differentiation program initiated by PAX5 repression, thereby contributing to the development of a fraction of DLBCL.
Collapse
Affiliation(s)
- Hitoshi Ohno
- Department of Hematology, Tenri Hospital, Tenri, Japan.,Tenri Institute of Medical Research, Tenri, Japan
| | | | | | | | | | - Kayo Takeoka
- Tenri Institute of Medical Research, Tenri, Japan
| | | | - Shinichi Sakamoto
- Department of Diagnostic Surgical Pathology, Tenri Hospital, Tenri, Japan
| | | | - Gen Honjo
- Department of Diagnostic Surgical Pathology, Tenri Hospital, Tenri, Japan
| |
Collapse
|
5
|
Park JS, Kim SM, Choi J, Jung KA, Hwang SH, Yang S, Kwok SK, Cho ML, Park SH. Interleukin-21-mediated suppression of the Pax3-Id3 pathway exacerbates the development of Sjögren's syndrome via follicular helper T cells. Cytokine 2019; 125:154834. [PMID: 31491724 DOI: 10.1016/j.cyto.2019.154834] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 08/26/2019] [Accepted: 08/27/2019] [Indexed: 11/26/2022]
Abstract
Sjögren's syndrome (SS) is a systemic autoimmune disease with severe dysfunction of glandular secretory function mediated by T and B lymphocyte infiltration into the exocrine glands, including the salivary and lacrimal glands. Follicular helper T (Tfh) cells exacerbate the disease by causing B cell hyperactivity. Inhibitor of DNA binding 3 (Id3) deficiency causes activation of Tfh cells and is known to be a clinical manifestation of human SS disease. In this study, we investigated the mechanism of action of Pax3, which is reduced in SS and can interact with Id3, in NOD/ShiLtJ mice as an animal model of SS. Treatment with interleukin (IL)-21, a major cytokine secreted from Tfh cells, suppressed Pax3 and Id3 expression via STAT3 in splenic T cells in vitro. Administration of pCMV14-3xFlag PAX3 vector improved the severity of SS by reducing the number of Tfh cells in NOD/ShiLtJ mice. Application of IL-21R-Fc increased the number of Pax3- and Id3-positive cells in the salivary glands, while reducing the proportion of Tfh cells and IL-17-producing T cells in NOD/ShiLtJ mice. The salivary glands from SS patients showed decreased levels of Pax3 or Id3 expression compared with healthy controls. Our findings regarding reinforcement of the Pax3-Id3 signal pathway may facilitate the development of novel therapeutic strategies for SS.
Collapse
Affiliation(s)
- Jin-Sil Park
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Sung-Min Kim
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - JeongWon Choi
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Kyung-Ah Jung
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Sun-Hee Hwang
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - SeungCheon Yang
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Seung-Ki Kwok
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea; Divison of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Mi-La Cho
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea; Department of Medical Lifescience, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea; Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea.
| | - Sung-Hwan Park
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea; Divison of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea.
| |
Collapse
|
6
|
Stein L, Bacmeister C, Ylaya K, Fetsch P, Wang Z, Hewitt SM, Kiupel M. Immunophenotypic Characterization of Canine Splenic Follicular-Derived B-Cell Lymphoma. Vet Pathol 2019; 56:350-357. [PMID: 30636524 DOI: 10.1177/0300985818823668] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Marginal zone lymphoma (MZL) and mantle cell lymphoma (MCL) belong to a subgroup of indolent B-cell lymphomas most commonly reported in the canine spleen. The goal of this study was to characterize the immunophenotype of splenic MZL and MCL in comparison to their human counterparts. Ten MCLs and 28 MZLs were selected based on morphology. A tissue microarray was generated, and expression of CD3, CD5, CD10, CD45, CD20, CD79a, Pax-5, Bcl-2, Bcl-6, cyclin D1, cyclin D3, MCL-1, MUM-1, and Sox-11 was evaluated. Neoplastic cells in all MCLs and MZLs were positive for CD5, CD20, CD45, CD79a, and BCL2 and negative for CD3, CD10, Bcl-6, cyclin D1, and cyclin D3. Positive labeling for Pax-5 was detected in 8 of 10 MCLs and 26 of 28 MZLs. Positive labeling for MUM-1 was detected in 3 of 10 MCLs, and 27 of 28 MZLs were positive for MUM-1. No MCLs but 8 of 24 MZLs were positive for MCL-1. Canine splenic MZL and MCL have a similar immunophenotype as their human counterparts. However, human splenic MCL overexpresses cyclin D1 due to a translocation. A similar genetic alteration has not been reported in dogs. In addition, in contrast to human MZL, canine splenic MZL generally expresses CD5. Following identification of B vs T cells with CD20 and CD3, a panel composed of BCL-2, Bcl-6, MUM-1, and MCL-1 combined with the histomorphological pattern can be used to accurately diagnose MZL and MCL in dogs. Expression of Bcl-2 and lack of MCL-1 expression in MCL may suggest a therapeutic benefit of BCL-2 inhibitors in canine MCL.
Collapse
Affiliation(s)
- Leah Stein
- 1 Michigan State University Veterinary Diagnostic Laboratory and Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | | | - Kris Ylaya
- 3 Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Patricia Fetsch
- 3 Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Zengfeng Wang
- 3 Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Stephen M Hewitt
- 3 Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Matti Kiupel
- 1 Michigan State University Veterinary Diagnostic Laboratory and Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| |
Collapse
|
7
|
Khan MR, Ahmad A, Kayani N, Minhas K. Expression of PAX-5 in B Cell Hodgkin and Non Hodgkin Lymphoma. Asian Pac J Cancer Prev 2018; 19:3463-3466. [PMID: 30583670 PMCID: PMC6428548 DOI: 10.31557/apjcp.2018.19.12.3463] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background: B-cell malignancies including Precursor B-cell lymphoblastic lymphoma/leukemia and Hodgkin Lymphoma show a wide spectrum of B-cell differentiation from early stage B-cell precursors to mature B-cells ending in terminal differentiation to plasma cells. Pan-B-cell antigens routinely used for the diagnosis of B-cell lymphoma, include CD19, CD20, CD22 and CD79a.PAX-5 protein, also known as B-cell-specific activation protein is a B-cell-specific transcription factor; essential for commitment and functional maintenance used in the diagnosis of B cell Hodgkin and non-Hodgkin lymphoma. PAX-5 show nuclear positivity in B cell lymphomas and moderate (dim) positivity in Hodgkinlymphoma Reed Sternberg cells make this marker ideal for diagnosing B cell malignances. Objective: To determine the expression of PAX-5 in B cell Hodgkin and non-Hodgkin Lymphoma in order to improve the diagnosis of B-cell lymphomas. Methods: In this Prospective study, all the cases of B cell lymphoma diagnosed at The Aga Khan University Hospital, Karachi from July 2010 to July 2011were included. A panel of Immunohistochemical stain was performed in all cases along with additional PAX- 5 stain with appropriate controls. Results: Total 125 cases were included. Hodgkin Lymphoma (Mixed cellularity) was the commonest B-cell lymphoma subtype, 32 (25%) cases. Other common subtypes included Hodgkin lymphoma (Nodular sclerosis subtype), diffuse large B-cell lymphoma and B lymphoblastic lymphoma. Conclusion: This study demonstrates that PAX-5 is the most sensitive and reliable immuhohistochemicalmarker in the diagnosis of B cell Hodgkin and non-Hodgkin lymphoma.
Collapse
Affiliation(s)
- Muhammad Rahil Khan
- Department of Pathology, Bilawal Medical College, Liaquat University of Medical and Health Sciences, Pakistan.
| | | | | | | |
Collapse
|
8
|
Abstract
PAX8 is important for embryogenesis of the thyroid, Müllerian system, and upper urinary/renal tract, and expression of PAX8 has been described in carcinomas from each of these sites. The sensitivity and specificity of the polyclonal PAX8 antibody in a large cohort of epithelial tumors as well as lymphomas have been previously determined, the latter because polyclonal PAX8 is known to be immunoreactive in nonneoplastic B-cell lymphocytes which are often used as the positive internal control for immunohistochemistry. In this case report, PAX8 was a diagnostic clue for revising a previous diagnosis of unclassified high grade sarcoma to diffuse large B-cell lymphoma. This case report demonstrates a pitfall for PAX8 immunoreactivity and acts as a reminder that lymphoma should be included in the differential diagnosis of a PAX8 positive, epithelial cell marker negative tumor of unknown primary origin.
Collapse
|
9
|
Katchi T, Liu D. Diagnosis and treatment of CD20 negative B cell lymphomas. Biomark Res 2017; 5:5. [PMID: 28191314 PMCID: PMC5297138 DOI: 10.1186/s40364-017-0088-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 02/03/2017] [Indexed: 01/25/2023] Open
Abstract
CD20 negative B cell non-Hodgkin lymphoma (NHL) is rare and accounts for approximately 1-2% of B cell lymphomas. CD20- negative NHL is frequently associated with extranodal involvement, atypical morphology, aggressive clinical behaviour, resistance to standard chemotherapy and poor prognosis. The most common types of these include plasmablastic lymphoma, primary effusion lymphoma, large B-cell lymphoma arising from HHV8-associated multicentric Castleman’s disease, and ALK+ large B cell lymphoma. This review provides an overview of the diagnostic and treatment modalities for CD20 negative B cell NHL.
Collapse
Affiliation(s)
- Tasleem Katchi
- Division of Hematology & Oncology, New York Medical College and Westchester Medical Center, Valhalla, NY 10595 USA
| | - Delong Liu
- Division of Hematology & Oncology, New York Medical College and Westchester Medical Center, Valhalla, NY 10595 USA
| |
Collapse
|
10
|
Yin L, Xu J, Li M, Reddy V, Zhou Q, Liu H, Chu P, Zhang Q, Huang Q, Gao Z, Liang X, Wang HY, Pan Z. Oct2 and Bob1 are sensitive and specific markers in lineage determination of B cell lymphomas with no expression of conventional B cell markers. Histopathology 2016; 69:775-783. [PMID: 27319306 DOI: 10.1111/his.13017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 06/17/2016] [Indexed: 12/29/2022]
Abstract
AIMS Rare cases of B cell lymphomas do not express conventional B cell markers (CD20, CD79a and PAX5), and these types of lymphomas include anaplastic lymphoma kinase (ALK)-positive large B cell lymphoma, plasmablastic lymphoma, primary effusion lymphoma and the solid variant of primary effusion lymphoma, extracavitary human herpesvirus 8 (HHV8)-positive large B cell lymphoma. Establishing accurate diagnoses of these B cell lymphomas can be challenging, and often requires a large panel of immunohistochemical stains, molecular assays and cytogenetic studies. B cell-specific transcription factors, Oct2 and Bob1, have been shown to be expressed consistently in most, if not all, B cell lymphomas, and therefore we investigated the utility of Oct2 and Bob1 immunohistochemistry in lineage determination of the aforementioned B cell lymphomas. METHODS AND RESULTS We selected 34 cases of previously diagnosed B cell lymphomas with no or weak expression of CD20, CD79a and PAX5. Oct2 and Bob1 were positive in 74% (25 of 34) and 85% (29 of 34) of the cases, respectively. When we combined the results of these two immunostains, 94% (32 of 34) cases expressed at least one of these two markers. We also included 51 control cases of non-B cell neoplasms, and none of them expressed either Oct2 or Bob1. CONCLUSIONS Oct2 and Bob1 are very reliable in determining B cell lineage in the absence of expression of other pan-B cell markers, and it should provide great diagnostic benefit to include them both in a panel of immunohistochemistry to assess undifferentiated malignant neoplasms.
Collapse
Affiliation(s)
- Liqun Yin
- Department of Pathology, University of Colorado Denver, Aurora, CO, USA
| | - Jie Xu
- Department of Hematopathology, MD Anderson Cancer Center, Houston, TX, USA
| | - Min Li
- Department of Pathology, Peking University Health Science Center, Beijing, China
| | - Vishnu Reddy
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Quan Zhou
- Department of Pathology, Zhejiang Wujing General Hospital, Zhejiang, China
| | - Huanxin Liu
- Department of Pathology, Guangdong Wujing General Hospital, Guangdong, China
| | - Peiguo Chu
- Department of Pathology, City of Hope National Medical Center, Duarte, CA, USA
| | - Qianyun Zhang
- Department of Pathology, University of New Mexico, Albuquerque, NM, USA
| | - Qin Huang
- Department of Pathology, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Zifen Gao
- Department of Pathology, Peking University Health Science Center, Beijing, China
| | - Xiayuan Liang
- Department of Pathology, Children's Hospital Colorado, Aurora, CO, USA
| | - Huan-You Wang
- Department of Pathology, University of California San Diego, La Jolla, CA, USA
| | - Zenggang Pan
- Department of Pathology, University of Colorado Denver, Aurora, CO, USA.
| |
Collapse
|
11
|
Johri N, Patne SCU, Tewari M, Kumar M. Diagnostic Utility of PAX5 in Hodgkin and Non-Hodgkin Lymphoma: A Study from Northern India. J Clin Diagn Res 2016; 10:XC04-XC07. [PMID: 27656544 DOI: 10.7860/jcdr/2016/21476.8352] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 06/21/2016] [Indexed: 11/24/2022]
Abstract
INTRODUCTION PAX5 is an immunomarker of B-cell origin and useful in the diagnosis of lymphoma. There is hardly any study on PAX5 expression in Indian patients with lymphoma. AIM To evaluate the diagnostic utility of PAX5 as an adjunct immunohistochemical marker in the diagnosis of Hodgkin Lymphoma (HL) and Non-Hodgkin Lymphoma (NHL). MATERIALS AND METHODS Immunohistochemistry was performed against CD20, CD3, CD15, CD30, and PAX5 on formalin fixed paraffin embedded tissue of 71 cases of lymphoma and CD20, CD3 and PAX5 in control samples of reactive lymph nodes. Frequency, mean values, and percentage were calculated. Fisher's-exact test and test for analysis of variance were applied. RESULT For 24 cases of HL and 47 cases of NHL, the mean age of patients was 17.6±14.8 years and 44.1±21.6 years, respectively. The male: female ratio for both HL and NHL were 1.7:1. Among NHL cases, the numbers of B-cell and T-cell types were 39/47 (83%) and 8/47 (17%), respectively. In comparison to control samples, PAX5+ expression was seen in 23/24 (95.8%) cases of HL (p=1.000) and 32/39 (82%) cases of B-NHL (p=0.0834). All the cases of T-NHL showed negative expression of PAX5 (p<0.0001). Analysis of variance between NHL, HL and control samples was statistically significant (p<0.0001). CONCLUSION PAX5 staining between control samples and cases of classical HL and B-NHL was statistically not significant, whereas, statistically significant difference was observed with T-NHL. Thus, PAX5 may be used as an adjunct marker in the diagnosis of classical HL and B-NHL.
Collapse
Affiliation(s)
- Nidhi Johri
- Junior Resident, Department of Pathology, Institute of Medical Sciences, Banaras Hindu University , Varanasi, Uttar Pradesh, India
| | - Shashikant C U Patne
- Assistant Professor, Department of Pathology, Institute of Medical Sciences, Banaras Hindu University , Varanasi, Uttar Pradesh, India
| | - Mallika Tewari
- Associate Professor and Head, Department of Surgical Oncology, Institute of Medical Sciences, Banaras Hindu University , Varanasi, Uttar Pradesh, India
| | - Mohan Kumar
- Professor, Department of Pathology, Institute of Medical Sciences, Banaras Hindu University , Varanasi, Uttar Pradesh, India
| |
Collapse
|
12
|
Verma A, Shet T, Epari S, Gupta M, Gujral S, Khanna N, Laskar S, Sengar M, Arora B, Menon H, Banavali S. Mediastinal Gray Zone Lymphoma. Int J Surg Pathol 2016; 24:382-93. [DOI: 10.1177/1066896916635816] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Aim. To identify aggressively behaving classical Hodgkin lymphoma (CHL) of mediastinum and primary mediastinal B-cell lymphoma (PMBCL) and to classify them as mediastinal gray zone lymphoma(MGZL) and to define a minimum immunopanel for the diagnosis of MGZL. Materials and Methods. Ninety-two mediastinal B-cell lymphomas were reviewed with a wide immunopanel and were classified as CHL, PMBCL, or MGZL. CHL with an expression of 3 or 4 transcription factors performed worse, and hence the CHL with ≥3 transcription factors were classified as MGZL-CHL. In PMBCL, the cases with a weak or negative CD20 and positive CD15 as well as those cases showing cyclin E positivity with a negative or focal LCA and any one of the transcription factors were classified as MGZL-PMBCL. Results. The MGZL cases expanded from 9 to 28 cases after using an extended immunopanel. CHL and PMBCL had a disease-free survival rate of 86.8% and 69.2% and an overall survival rate of 97.4% and 80.8%, respectively. MGZL-CHL and MGZL-PMBCL had a disease-free survival rate of 33% and 40% and an overall survival rate of 66.7% and 60%, respectively. Conclusion. Thus, the MGZL may be a wider category than we think and hence the use of a wide immunopanel is recommended to identify the aggressively behaving mediastinal B-cell lymphomas.
Collapse
Affiliation(s)
- Anuj Verma
- Department of Pathology, Tata Memorial Hospital, Mumbai, India
| | - Tanuja Shet
- Department of Pathology, Tata Memorial Hospital, Mumbai, India
| | - Sridhar Epari
- Department of Pathology, Tata Memorial Hospital, Mumbai, India
| | - Manjudevi Gupta
- Department of Pathology, Tata Memorial Hospital, Mumbai, India
| | - Sumeet Gujral
- Department of Pathology, Tata Memorial Hospital, Mumbai, India
| | - Nehal Khanna
- Department of Radiation Oncology, Tata Memorial Hospital, Mumbai, India
| | - Siddhartha Laskar
- Department of Radiation Oncology, Tata Memorial Hospital, Mumbai, India
| | - Manju Sengar
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai, India
| | - Brijesh Arora
- Department of Pediatric Oncology, Tata Memorial Hospital, Mumbai, India
| | - Hari Menon
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai, India
| | - Shripad Banavali
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai, India
| |
Collapse
|
13
|
Wang D, Chen J, Li R, Wu G, Sun Z, Wang Z, Zhai Z, Fang F, Guo Y, Zhong Y, Jiang M, Xu H, Chen M, Shen G, Sun J, Yan B, Yu C, Tian Z, Xiao W. PAX5 interacts with RIP2 to promote NF-κB activation and drug-resistance of B-lymphoproliferative disorders. J Cell Sci 2016; 129:2261-72. [DOI: 10.1242/jcs.183889] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 04/11/2016] [Indexed: 12/17/2022] Open
Abstract
Paired box protein 5 (PAX5) plays a lineage determination role in B-cell development. However, high expression of PAX5 has been also found in various malignant diseases including B-lymphoproliferative disorders (B-LPDs), but its functions and mechanisms in these diseases are still unclear. Here, we show that PAX5 induces drug-resistance through association and activation of receptor-interacting serine/threonine-protein kinase2 (RIP2) and subsequent activation of NF-κB signaling and anti-apoptosis genes expression in B-lymphoproliferative cells. Furthermore, PAX5 is able to interact with RIP1-3, modulating both RIP1- mediated TNFR and RIP2-mediated NOD1 and NOD2 pathways. Our findings describe a novel function of PAX5 in regulating RIP1 and RIP2 activation, which is at least involved in chemo drug-resistance in B-LPDs.
Collapse
Affiliation(s)
- Dong Wang
- Key Laboratory of Innate Immunity and Chronic Disease of CAS, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, China
- Hefei National Laboratory for Physical Sciences at Microscale, Hefei, Anhui 230027, China
- Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, China
| | - Jingyu Chen
- Key Laboratory of Innate Immunity and Chronic Disease of CAS, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, China
- Hefei National Laboratory for Physical Sciences at Microscale, Hefei, Anhui 230027, China
- Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, China
| | - Rui Li
- Key Laboratory of Innate Immunity and Chronic Disease of CAS, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, China
- Hefei National Laboratory for Physical Sciences at Microscale, Hefei, Anhui 230027, China
- Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, China
| | - Guolin Wu
- Department of Hematology, Anhui Provincial Hospital, 17 Lujiang Road, Hefei, Anhui Province 230001, China
| | - Zimin Sun
- Department of Hematology, Anhui Provincial Hospital, 17 Lujiang Road, Hefei, Anhui Province 230001, China
| | - Zhitao Wang
- Department of Hematology, The Second Hospital of Anhui Medical University, 678 Furong Road, Hefei, Anhui Province 230601, China
| | - Zhimin Zhai
- Department of Hematology, The Second Hospital of Anhui Medical University, 678 Furong Road, Hefei, Anhui Province 230601, China
| | - Fang Fang
- Key Laboratory of Innate Immunity and Chronic Disease of CAS, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, China
- Hefei National Laboratory for Physical Sciences at Microscale, Hefei, Anhui 230027, China
- Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, China
| | - Yugang Guo
- Key Laboratory of Innate Immunity and Chronic Disease of CAS, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, China
- Hefei National Laboratory for Physical Sciences at Microscale, Hefei, Anhui 230027, China
- Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, China
| | - Yongjun Zhong
- Key Laboratory of Innate Immunity and Chronic Disease of CAS, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, China
- Hefei National Laboratory for Physical Sciences at Microscale, Hefei, Anhui 230027, China
- Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, China
| | - Ming Jiang
- Key Laboratory of Innate Immunity and Chronic Disease of CAS, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, China
- Hefei National Laboratory for Physical Sciences at Microscale, Hefei, Anhui 230027, China
- Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, China
| | - Huan Xu
- Key Laboratory of Innate Immunity and Chronic Disease of CAS, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, China
- Hefei National Laboratory for Physical Sciences at Microscale, Hefei, Anhui 230027, China
- Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, China
| | - Minhua Chen
- Key Laboratory of Innate Immunity and Chronic Disease of CAS, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, China
- Hefei National Laboratory for Physical Sciences at Microscale, Hefei, Anhui 230027, China
- Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, China
| | - Guodong Shen
- Key Laboratory of Innate Immunity and Chronic Disease of CAS, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, China
- Hefei National Laboratory for Physical Sciences at Microscale, Hefei, Anhui 230027, China
- Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, China
| | - Jie Sun
- Key Laboratory of Innate Immunity and Chronic Disease of CAS, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, China
- Hefei National Laboratory for Physical Sciences at Microscale, Hefei, Anhui 230027, China
- Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, China
| | - Bailing Yan
- Emergency Department, the First Hospital of Jilin Univesity, Changchun 130021, China
| | - Chundong Yu
- Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, China
| | - Zhigang Tian
- Key Laboratory of Innate Immunity and Chronic Disease of CAS, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, China
- Hefei National Laboratory for Physical Sciences at Microscale, Hefei, Anhui 230027, China
- Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, China
| | - Weihua Xiao
- Key Laboratory of Innate Immunity and Chronic Disease of CAS, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, China
- Hefei National Laboratory for Physical Sciences at Microscale, Hefei, Anhui 230027, China
- Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, China
| |
Collapse
|
14
|
Flepisi BT, Bouic P, Sissolak G, Rosenkranz B. Biomarkers of HIV-associated Cancer. BIOMARKERS IN CANCER 2014; 6:11-20. [PMID: 25057241 PMCID: PMC4085100 DOI: 10.4137/bic.s15056] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/02/2014] [Revised: 04/21/2014] [Accepted: 04/23/2014] [Indexed: 12/13/2022]
Abstract
Cancer biomarkers have provided great opportunities for improving the management of cancer patients by enhancing the efficiency of early detection, diagnosis, and efficacy of treatment. Every cell type has a unique molecular signature, referred to as biomarkers, which are identifiable characteristics such as levels or activities of a myriad of genes, proteins, or other molecular features. Biomarkers can facilitate the molecular definition of cancer, provide information about the course of cancer, and predict response to chemotherapy. They offer the hope of early detection as well as tracking disease progression and recurrence. Current progress in the characterization of molecular genetics of HIV-associated cancers may form the basis for improved patient stratification and future targeted or individualized therapies. Biomarker use for cancer staging and personalization of therapy at the time of diagnosis could improve patient care. This review focuses on the relevance of biomarkers in the most common HIV-associated malignancies, namely, Kaposi sarcoma, non-Hodgkin’s lymphoma, and invasive cervical cancer.
Collapse
Affiliation(s)
- Brian Thabile Flepisi
- Division of Clinical Pharmacology, Department of Medicine, Stellenbosch University, Cape Town, South Africa
| | - Patrick Bouic
- Department of Medical Microbiology, Stellenbosch University, Cape Town, South Africa
| | - Gerhard Sissolak
- Division of Clinical Haematology, Department of Medicine, Stellenbosch University, Cape Town, South Africa
| | - Bernd Rosenkranz
- Clinical Pharmacology Division, Department of Medicine, Stellenbosch University, Cape Town, South Africa
| |
Collapse
|
15
|
Ghamlouch H, Ouled-Haddou H, Guyart A, Regnier A, Trudel S, Claisse JF, Fuentes V, Royer B, Marolleau JP, Gubler B. Phorbol myristate acetate, but not CD40L, induces the differentiation of CLL B cells into Ab-secreting cells. Immunol Cell Biol 2014; 92:591-604. [PMID: 24797583 PMCID: PMC4134517 DOI: 10.1038/icb.2014.37] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 03/21/2014] [Accepted: 03/24/2014] [Indexed: 11/29/2022]
Abstract
In this study, we investigated the capacity of chronic lymphocytic leukemia (CLL) B cells to undergo terminal differentiation into Ig-secreting plasma cells in T cell-independent and T cell-dependent responses. We used a two-step model involving stimulation with phorbol myristate acetate (PMA) and CD40L, together with cytokines (PMA/c and CD40L/c), for 7 days. We describe immunophenotypic modifications, changes in the levels of mRNA and protein for transcription factors and morphological and functional events occurring during the differentiation of CLL B cells into antibody-secreting cells (ASCs). The induction of differentiation differed significantly between the CD40L/c and PMA/c culture systems. The PMA/c culture system allowed CLL B cells to differentiate into IgM-secreting cells with an immunophenotype and molecular profile resembling those of preplasmablasts. By contrast, CD40L/c-stimulated cells had a phenotype and morphology similar to those of activated B cells and resembling those of the CLL B cells residing in the lymph node and bone marrow. These data suggest that the CLL B cells are not frozen permanently at a stage of differentiation and are able to differentiate into ASCs as appropriate stimulation are provided. The data presented here raise questions about the molecular processes and stimulation required for CLL B-cell differentiation and about the inability of CD40 ligand to induce differentiation of the CLL B cells.
Collapse
Affiliation(s)
- Hussein Ghamlouch
- EA4666, Laboratoire d'Immunologie, UFR de Médecine, Université de Picardie Jules Verne, Amiens, France
| | - Hakim Ouled-Haddou
- EA4666, Laboratoire d'Immunologie, UFR de Médecine, Université de Picardie Jules Verne, Amiens, France
| | - Aude Guyart
- EA4666, Laboratoire d'Immunologie, UFR de Médecine, Université de Picardie Jules Verne, Amiens, France
| | - Aline Regnier
- 1] EA4666, Laboratoire d'Immunologie, UFR de Médecine, Université de Picardie Jules Verne, Amiens, France [2] Service d'Hématologie Clinique et Thérapie Cellulaire, CHU d'Amiens, Avenue René Laënnec, Amiens, France
| | - Stéphanie Trudel
- 1] EA4666, Laboratoire d'Immunologie, UFR de Médecine, Université de Picardie Jules Verne, Amiens, France [2] Laboratoire d'Oncobiologie Moléculaire, CHU d'Amiens, Avenue René Laënnec, Amiens, France
| | - Jean-François Claisse
- Service d'Hématologie Clinique et Thérapie Cellulaire, CHU d'Amiens, Avenue René Laënnec, Amiens, France
| | - Vincent Fuentes
- EA4666, Laboratoire d'Immunologie, UFR de Médecine, Université de Picardie Jules Verne, Amiens, France
| | - Bruno Royer
- 1] EA4666, Laboratoire d'Immunologie, UFR de Médecine, Université de Picardie Jules Verne, Amiens, France [2] Service d'Hématologie Clinique et Thérapie Cellulaire, CHU d'Amiens, Avenue René Laënnec, Amiens, France
| | - Jean-Pierre Marolleau
- 1] EA4666, Laboratoire d'Immunologie, UFR de Médecine, Université de Picardie Jules Verne, Amiens, France [2] Service d'Hématologie Clinique et Thérapie Cellulaire, CHU d'Amiens, Avenue René Laënnec, Amiens, France
| | - Brigitte Gubler
- 1] EA4666, Laboratoire d'Immunologie, UFR de Médecine, Université de Picardie Jules Verne, Amiens, France [2] Laboratoire d'Oncobiologie Moléculaire, CHU d'Amiens, Avenue René Laënnec, Amiens, France
| |
Collapse
|
16
|
Morgan EA, Pozdnyakova O, Nascimento AF, Hirsch MS. PAX8 and PAX5 are differentially expressed in B-cell and T-cell lymphomas. Histopathology 2012; 62:406-13. [PMID: 23163626 DOI: 10.1111/his.12020] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIMS The purpose of this study was to evaluate the expression patterns of B-cell specific activator protein (BSAP)/PAX5 and PAX8 in a wide variety of B-cell and T-cell neoplasms. METHODS AND RESULTS A wide range of B-cell and T-cell neoplasms were subjected to immunohistochemical staining with antibodies against BSAP/PAX5 and PAX8 (polyclonal, pPAX8; monoclonal, mPAX8). Ten non-neoplastic lymph node specimens were examined with the same panel. All of the tested neoplastic and non-neoplastic B-cells reacted with the BSAP/PAX5 and pPAX8 antibodies, but did not show reactivity with the mPAX8 antibody. All tested T-cell neoplasms were negative using the BSAP/PAX5, pPAX8 and mPAX8 antibodies. CONCLUSIONS This is the first study to show the absence of reactivity to an mPAX8 antibody in an expanded panel of B-cell lymphomas as well as in a variety of T-cell neoplasms. In contrast to the mPAX8 antibody, the pPAX8 antibody shows nuclear positivity in non-neoplastic B cells and mature B-cell neoplasms; however, this expression is probably a result of cross-reactivity with PAX5. Given that many laboratories use the pPAX8 antibody, a clear understanding of the differential staining patterns is necessary. The differential diagnosis of a B-cell lymphoma should be entertained when a pPAX8-positive, epithelial marker-negative neoplasm of uncertain primary origin is encountered.
Collapse
Affiliation(s)
- Elizabeth A Morgan
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | | | | | | |
Collapse
|
17
|
Hashimoto M, Inaguma S, Kasai K, Kuwabara K, Noda N, Hayakawa M, Fujino M, Ito M, Ikeda H. Plasmablastic lymphoma of the stomach in an HIV-negative patient. Pathol Int 2012; 62:763-70. [DOI: 10.1111/pin.12005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
18
|
Suzuki Y, Yoshida T, Wang G, Togano T, Miyamoto S, Miyazaki K, Iwabuchi K, Nakayama M, Horie R, Niitsu N, Sato Y, Nakamura N. Association of CD20 levels with clinicopathological parameters and its prognostic significance for patients with DLBCL. Ann Hematol 2012; 91:997-1005. [DOI: 10.1007/s00277-012-1407-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2011] [Accepted: 01/04/2012] [Indexed: 12/01/2022]
|
19
|
Narayansingh R, Ouellette RJ. Paired box gene 5 may modulate Proviral Integration of Moloney virus 2 gene and protein expression in mature B-cells. Leuk Lymphoma 2011; 52:887-95. [PMID: 21299464 DOI: 10.3109/10428194.2011.553001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Deregulated transcription factor Paired box gene 5 (Pax-5) expression has been implicated in B-cell lymphoma in human disease. Proviral Integration of Moloney virus 2 (Pim-2) kinase may play a role in apoptosis and chemotherapy resistance. We characterized the expression of Pax-5 and Pim-2 in mature B-cell lines and 293T cells transfected with human isoforms of Pax-5. By quantitative real-time polymerase chain reaction (qRT-PCR), we showed that Pax-5 isoforms significantly increased Pim-2 mRNA expression in 293T cells and that mRNAs for both Pax-5 and Pim-2 were two-fold significantly expressed in mature malignant B-cells. Western blot analysis showed that Pim-2 protein expression was increased in 293T cells transiently transfected with human isoforms of Pax-5 and that Pax-5 isoforms and Pim-2 proteins were expressed in mature B-cell lines. By electrophoretic mobility shift analysis, we showed that Pax-5 isoforms were able to bind to the Pim-2 promoter region. Taken together, these results suggest that Pax-5 may act as a transcription factor to modulate the expression of Pim-2 and that both proteins may play a role in the oncogenesis of mature B-cell lymphoma.
Collapse
|
20
|
Characterization of a New Monoclonal Antibody Against PAX5/BASP in 1525 Paraffin-embedded Human and Animal Tissue Samples. Appl Immunohistochem Mol Morphol 2010; 18:561-72. [PMID: 20697266 DOI: 10.1097/pai.0b013e3181e79013] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
INTRODUCTION We describe the newly generated DAK-PAX5 monoclonal antibody raised against a fixation-resistant epitope of the human PAX5/BSAP molecule. MATERIALS AND METHODS Following Western-blot, absorption, and chess-board titration tests, and optimization of antigen-retrieval and detection methods, DAK-Pax5 was used in parallel with a reference antibody (clone 24) on tissue micro-arrays (TMAs) constructed from normal human and animal tissues and from hematologic and nonhematologic human malignancies. Such TMAs were also tested with an anti-PAX2 antibody. RESULTS DAK-Pax5 reacted with normal human and animal B-cells and with 460/473 B-cell non-Hodgkin lymphomas (B-NHLs). All plasmacytomas/plasmablastic tumors (n=13) and T/NK-cell neoplasms (n=264) turned out consistently negative as did acute myelogenous leukaemias (n=19) except 2 carrying t(8;21). Positivity was found in 6/6 and 155/169 lymphocyte predominant and classical HLs, respectively, although the staining intensity varied through cases. Among 521 nonhematologic malignancies, DAK-Pax5 reacted with 22/399 carcinomas (4/11 neuroendocrine, 2/4 Merkel-cell, 4/21 prostatic, 1/11 urothelial, 1/26 renal, 2/12 cervical squamous-cell, 3/13 ovarian, and 5/75 colonic). When compared with clone 24, DAK-Pax5 produced a stronger positivity in most if not all B-NHLs and HLs. No cross-reactivity with the anti-PAX2 antibody was recorded. DISCUSSION DAK-Pax5 represents a new reliable tool for diagnostics and research.
Collapse
|
21
|
Oracki SA, Walker JA, Hibbs ML, Corcoran LM, Tarlinton DM. Plasma cell development and survival. Immunol Rev 2010; 237:140-59. [DOI: 10.1111/j.1600-065x.2010.00940.x] [Citation(s) in RCA: 195] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
22
|
Hoang MP, Mahalingam M, Selim MA. Immunohistochemistry in the diagnosis of cutaneous neoplasms. Future Oncol 2010; 6:93-109. [DOI: 10.2217/fon.09.143] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In recent years, there has been a significant increase in the number of diagnostic immunohistochemical stains available to pathologists and dermatopathologists. Immunohistochemistry has become an indispensable tool in dermatopathology, not only in diagnosis but also in the treatment and prognostication of cutaneous neoplasms. In this review we attempt to outline current, as well as new, immunohistochemical stains of relevance in the diagnosis and classification of cutaneous neoplasms.
Collapse
Affiliation(s)
- Mai P Hoang
- Harvard Medical School, Massachusetts General Hospital, 55 Fruit Street, Warren 820, Boston, MA 02114, USA
| | | | | |
Collapse
|