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Wang GN, Zhao WG, Zhang DD, Zhang YP, Liu EJ, Lu SS, Li WC. [Nodal T-follicular helper cell lymphoma, angioimmunoblastic-type associated with diffuse large B-cell lymphoma: a clinicopathological study]. Zhonghua Bing Li Xue Za Zhi 2023; 52:918-923. [PMID: 37670621 DOI: 10.3760/cma.j.cn112151-20221206-01024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Abstract
Objective: To investigate the clinicopathological features and molecular genetics of diffuse large B-cell lymphomas (DLBCL) with concurrent or secondary to nodal T-follicular helper cell lymphoma, angioimmunoblastic-type (nTFHL-AI). Methods: The clinicopathological features and molecular genetics of DLBCL associated with nTFHL-AI diagnosed between January 2015 and October 2022 at the First Affiliated Hospital of Zhengzhou University were analyzed using histology, immunohistochemistry, PCR, EBV-encoded RNA in situ hybridization and fluorescence in situ hybridization (FISH). Clinical information was collected and analyzed. Results: A total of 6 cases including 3 nTFHL-AI with secondary DLBCL and 3 composite lymphomas were reviewed. There were 4 male and 2 female patients, whose ages ranged from 40 to 74 years (median 57 years). All patients presented with nodal lesions at an advanced Ann Arbor stage Ⅲ/Ⅳ (6/6). Bone marrow involvement was detected in 4 patients. All cases showed typical histologic and immunophenotypic characteristics of nTFHL-AI. Among them, 5 cases of DLBCL with concurrent nTFHL-AI exhibited numerous large atypical lymphoid cells and the tumor cells were CD20 and CD79α positive. The only case of DLBCL secondary to nTFHL-AI showed plasma cell differentiation and reduced expression of CD20. All of cases were activated B-cell (ABC)/non-germinal center B-cell (non-GCB) subtype. Three of the 6 cases were EBV positive with>100 positive cells/high power field, meeting the diagnostic criteria of EBV+DLBCL. The expression of MYC and CD30 protein in the DLBCL region was higher than that in the nTFHL-AI region (n=5). C-MYC, bcl-6 and bcl-2 translocations were not detected in the 4 cases that were subject to FISH. Four of the 6 patients received chemotherapy after diagnosis. For the DLBCL cases of nTFHL-AI with secondary DLBCL, the interval was between 2-20 months. During the follow-up period ranging from 3-29 months, 3 of the 6 patients died of the disease. Conclusions: DLBCL associated with nTFHL-AI is very rare. The expansion of EBV-infected B cells in nTFHL-AI may progress to secondary EBV+DLBCL. However, EBV-negative cases have also been reported, suggesting possible other mechanisms. The up-regulation of MYC expression in these cases suggests a possible role in B-cell lymphomagenesis. Clinicians should be aware that another biopsy is still necessary to rule out concurrent or secondary DLBCL when nodal and extranodal lesions are noted after nTFHL-AI treatment.
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Affiliation(s)
- G N Wang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - W G Zhao
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - D D Zhang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y P Zhang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - E J Liu
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - S S Lu
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - W C Li
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Wei YS, Zhang DD, Li MX, Liu EJ, Li P, Zhang YP, Zhao WG, Wang GN, Jian XY, Li WC. [Clinicopathological characteristics of angioimmunoblastic T-cell lymphoma involving gastrointestinal tract]. Zhonghua Bing Li Xue Za Zhi 2022; 51:752-754. [PMID: 35922167 DOI: 10.3760/cma.j.cn112151-20220105-00006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- Y S Wei
- Department of Laboratory Medicine, Henan Second Provincial People's Hospital, Zhengzhou 451191, China
| | - D D Zhang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - M X Li
- Department of Laboratory Medicine, Henan Second Provincial People's Hospital, Zhengzhou 451191, China
| | - E J Liu
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - P Li
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y P Zhang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - W G Zhao
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - G N Wang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - X Y Jian
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - W C Li
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Wang GN, Zhang L, Li CF, Zhao WG, Zhang DD, Zhang YP, Li WC. [Clinicopathological and molecular genetic features of cyclin D1-negative mantle cell lymphoma]. Zhonghua Bing Li Xue Za Zhi 2022; 51:296-300. [PMID: 35359039 DOI: 10.3760/cma.j.cn112151-20210904-00647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the clinicopathological features and molecular genetics of cyclin D1-negative mantle cell lymphoma (MCL). Methods: The clinicopathological features and molecular genetics of CyclinD1-negative MCL diagnosed between January 2016 and July 2021 at the First Affiliated Hospital of Zhengzhou University were analyzed using immunohistochemistry and fluorescence in situ hybridization. Clinical information was collected and analyzed. Results: A total of five Cyclin D1-negative MCL cases from all 212 MCL patients (5/212, 2.4%)were included. There were three male and two female patients,age ranged from 59 to 70 years (median 64 years). All patients presented with nodal lesions. None of the patients had B symptoms but four had bone marrow involvement. Histopathologically, four cases were classic MCL and one case was pleomorphic variant type. All five cases were negative for Cyclin D1 but SOX-11 were positive in all cases. CD5 was positive in four cases and one case was weakly positive for CD23. CD10 and bcl-6 were negative in all cases. CCND1 translocation was identified in three cases and CCND2 translocation in one case by FISH analysis. However,CCND3 translocations were not found in the five cases. Conclusions: Cyclin D1-negative MCL are uncommon, its accurate diagnosis needs combined analysis with morphologic and immunophenotypic characteristics and genetic changes. It may be particularly difficult to distinguish from other small cell type B cell lymphomas. FISH analyses for CCND1/CCND2/CCND3 translocations and immunohistochemistry for SOX-11 are helpful to resolve such a difficult distinction.
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Affiliation(s)
- G N Wang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - L Zhang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - C F Li
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - W G Zhao
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - D D Zhang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y P Zhang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - W C Li
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Gao XZ, Han J, Wang GN, Zhao WG, Du Q, Li SL, Li WC. [Clinicopathological analysis of 23 cases of classic Hodgkin's lymphoma of the lung]. Zhonghua Bing Li Xue Za Zhi 2022; 51:227-229. [PMID: 35249287 DOI: 10.3760/cma.j.cn112151-20210711-00498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- X Z Gao
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - J Han
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - G N Wang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - W G Zhao
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Q Du
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - S L Li
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - W C Li
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Huo YJ, Zhang DD, Zhou L, Li CF, Wang GN, Zhao WG, Zhang YP, Jian XY, Huang HF, Li WC. [Clinicopathological characteristics of natural killer cell enteropathy: report of two cases and review of literature]. Zhonghua Bing Li Xue Za Zhi 2022; 51:108-113. [PMID: 35152628 DOI: 10.3760/cma.j.cn112151-20210703-00481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To study the clinicopathological and genetic features of natural killer (NK)-cell enteropathy for better understanding of this rare disease and prevention of its misdiagnosis. Methods: Two cases of NK-cell enteropathy were diagnosed in the First Affiliated Hospital of Zhengzhou University, China from October 2017 to February 2021. The clinical characteristics, morphology, immunohistochemistry, Epstein-Barr virus-encoded RNA (EBER) in situ hybridization and T cell receptor gene rearrangement were analyzed. The patients were followed up by a telephone interview. Results: The patients were both male, aged 40 and 28 years, respectively. Both patients were admitted to the hospital for an annual checkup without obvious gastrointestinal symptoms. The endoscopy showed that the gastric body of case 1 had a mucosal bulge, small area of congestion and erosion, while the rectum of case 2 had congestion and erosion. Microscopically, the lesions of the 2 cases were relatively limited. Many lymphoid cells infiltrated within the lamina propria of the mucosa and into the muscularis mucosa in case 2. In case 1, the glands were reduced in the lesion, and the glandular cavity was slightly compressed and deformed. There was no infiltration or destruction of the glands in either case. Lymphoid cells were atypical, with medium-to-large cell sizes. Their cytoplasm was medium-to-slightly abundant and appeared eosinophilic or translucent. In case 2, characteristic eosinophilic granules were seen in the cytoplasm of a few cells. The nuclei in both cases were round, oval and irregular, with fine chromatin, inconspicuous nucleoli, and no mitotic figures were noted. Necrosis was seen in case 1 while both cases had no central growth or destruction of blood vessels. Immunophenotyping showed that CD56, granzyme B and TIA-1 were positive in both cases, part of the cells was CD3-positive, and some cells were weakly CD4-positive in case 2. The CD5, CD8, CD30, ALK and B-lineage markers (CD20, CD79α) were all negative. The Ki-67 proliferation index was about 60% and 30%, respectively. Both cases were EBER negative. TCR gene rearrangement was polyclonal. Follow-up showed that none of the 2 patients had any special treatments and stayed well. Conclusions: NK-cell enteropathy is rare, with biological behaviors similar to benign tumors, and occasional recurrence. Its histology and immunophenotype are easily confused with NK/T cell-derived lymphomas. Combination of its unique endoscopic features, EBER negativity, polyclonal TCR gene rearrangement and good prognosis can confirm the diagnosis and avoid misdiagnosis and overtreatment.
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Affiliation(s)
- Y J Huo
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - D D Zhang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - L Zhou
- Department of Gastroenterology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - C F Li
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - G N Wang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - W G Zhao
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y P Zhang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - X Y Jian
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - H F Huang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - W C Li
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Zhang YP, Zhang L, Zhang DD, Wang GN, Zhao WG, Jian XY, Li WC. [Clinicopathological and molecular genetic features of Burkitt-like lymphoma with 11q aberration]. Zhonghua Bing Li Xue Za Zhi 2021; 50:604-608. [PMID: 34078047 DOI: 10.3760/cma.j.cn112151-20210204-00127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Objective: To investigate the clinicopathological features, molecular genetics, treatment and prognosis of Burkitt-like lymphoma with 11q aberration (BLL-11q). Methods: Six cases of BLL-11q diagnosed at the First Affiliated Hospital of Zhengzhou University, from January 2016 to January 2020 were reviewed and analyzed using hematoxylin-eosin staining, immunohistochemistry, EBER in situ hybridization and fluorescence in situ hybridization. Clinical information including follow-up data was collected and analyzed. Results: The median age of the six immunocompetent patients was 29 years (range 20-38 years) and the male to female ratio was 5∶1. All patients had nodal disease in the head and neck region. Five patients had Ann Arbor stage Ⅰ-Ⅱ disease, while one patient had stage Ⅳ disease. Lymph nodes showed partial or total architectural effacement by a diffuse proliferation of monomorphic lymphocytes. Four cases were morphologically similar to Burkitt lymphoma, and two cases were unclassified with histological features between Burkitt lymphoma and diffuse large B-cell lymphoma. Mitotic figures, apoptosis and necrosis were conspicuous. Five cases exhibited the"starry sky"pattern. CD20, CD10 and bcl-6 were diffusely and strongly positive. The Ki-67 index was more than 95%. The follicular-dendritic-cell meshwork was noted in one case using CD21 stain. C-MYC was expressed variably. CD3, bcl-2, MUM-1, CD30 and TDT were negative in all cases. EBER in situ hybridization was also all negative. FISH analyses using C-MYC, bcl-2 and bcl-6 break-apart probes were all negative. All cases had the 11q23.3 gain/11q24.3 loss pattern, and 11q23.3 amplification was found in one case. IgH and IRF4 break-apart probes analysis was also negative. All patients were alive with no disease after a follow-up of 4 to 19 months. Conclusion: BLL-11q is a rare lymphoma that resembles Burkitt lymphoma morphologically and phenotypically, but lacks C-MYC gene rearrangements. Instead, it has a chromosome-11q alteration characterized by proximal gains and telomeric losses. It's necessary to improve our understanding of BLL-11q to avoid misdiagnosis and missed diagnosis.
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Affiliation(s)
- Y P Zhang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052
| | - L Zhang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052
| | - D D Zhang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052
| | - G N Wang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052
| | - W G Zhao
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052
| | - X Y Jian
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052
| | - W C Li
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052
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Zhao WG, Zhao HY, Wang GN, Zhang DD, Zhang YP, Zhao HB, Zhang CL, Zhang M, Li WC. [Characteristics of primary cutaneous rare nasal extranodal NK/T cell lymphoma: a clinicopathological study of 15 cases]. Zhonghua Bing Li Xue Za Zhi 2021; 50:609-614. [PMID: 34078048 DOI: 10.3760/cma.j.cn112151-20200926-00748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinicopathological features and differential diagnosis of primary cutaneous nasal extranodal NK/T cell lymphoma (pcENKTCL-NT). Methods: Fifteen cases of pcENKTCL-NT were collected at the First Affiliated Hospital of Zhengzhou University from January 2016 to December 2019. The clinical characteristics, morphological features, immunophenotypes, and results of in situ hybridization and gene detection were analyzed. Results: Among the 15 patients, 7 were male and 8 were female, with a male to female ratio of 1.0∶1.1. Their ages ranged from 29 to 86 years, and the median age was 59.3 years. All patients were hospitalized for skin lesions, including skin ulcers, scattered patchy red papules, and local blisters. The skin lesion might be a hard nodular mass, and part of it was a confluent patchy erythema; it could be manifested as multiple scattered nodules of different sizes, and some lesions were like round ulceration. There were 8 cases of lower limbs, 4 cases of chest (1 case with upper limb lesions), 2 cases of trunk and 1 case of neck. Most of the patients were sensitive to GGDP regimen (cisplatin, dexamethasone, gemcitabine and pemostatin). Histologically, most lesions showed tumor cells invading the epidermis and skin appendages, dermal infiltration, diffuse distribution, vascular and peritubular destruction, and some subcutaneous adipose tissue involvement. Morphologically, most of the tumor cells were mixed with small-to medium-size lymphocytes, and some were large cells, mixed cells or small cells. Immunohistochemistry showed that CD3, CD3 ε and TIA-1 were expressed in all cases, but not CD20 and CD8. CD56 and granzyme B were expressed in most of the cases, and CD5 was not expressed. Ki-67 positive index was about 50%-90%. EBV in situ hybridization was positive in all cases. The clonal rearrangement of T cell receptor gene was found in some CD56 negative cases. The 15 patients were followed up for 5-45 months, and one of them was lost to follow-up. Five patients died within 5-13 months after the diagnosis, accounting for 35.7% (5/14) of the 14 patients. The average survival time of the deceased patients was 8.6 months. Conclusions: The incidence rate of pcENKTCL-NT is relatively low, but its biological behavior is aggressive and its prognosis is overall poor. Its skin lesions and histopathological features are relatively diverse. The diagnosis should be determined with using clinical data, histological morphology, immunophenotype and EB virus in situ hybridization. At the same time, attention should be paid to differential diagnosis from other cutaneous lymphoma with cytotoxic phenotype to avoid missed diagnosis and misdiagnosis.
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Affiliation(s)
- W G Zhao
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - H Y Zhao
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - G N Wang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - D D Zhang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y P Zhang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - H B Zhao
- Department of Neurosurgery, School of Basic Medicine, Zhengzhou University, Zhengzhou 450052, China
| | - C L Zhang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - M Zhang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - W C Li
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Ma ML, Yu J, Liu YW, Lyu L, Ma CF, Liu H, Zhao WG, Zhang HB, Ping F, Li W, Li YX, Xu LL. [Ectopic adrenocorticotripic hormone syndrome in an adolescent caused by bronchial carcinoid:a case report]. Zhonghua Nei Ke Za Zhi 2020; 59:638-641. [PMID: 34865383 DOI: 10.3760/cma.j.cn112138-20190830-00593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- M L Ma
- Key Laboratory of Endocrinology of National Health Commission of the People's Republic of China, Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J Yu
- Key Laboratory of Endocrinology of National Health Commission of the People's Republic of China, Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y W Liu
- Key Laboratory of Endocrinology of National Health Commission of the People's Republic of China, Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - L Lyu
- Key Laboratory of Endocrinology of National Health Commission of the People's Republic of China, Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - C F Ma
- Key Laboratory of Endocrinology of National Health Commission of the People's Republic of China, Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H Liu
- Key Laboratory of Endocrinology of National Health Commission of the People's Republic of China, Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - W G Zhao
- Key Laboratory of Endocrinology of National Health Commission of the People's Republic of China, Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H B Zhang
- Key Laboratory of Endocrinology of National Health Commission of the People's Republic of China, Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - F Ping
- Key Laboratory of Endocrinology of National Health Commission of the People's Republic of China, Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - W Li
- Key Laboratory of Endocrinology of National Health Commission of the People's Republic of China, Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y X Li
- Key Laboratory of Endocrinology of National Health Commission of the People's Republic of China, Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - L L Xu
- Key Laboratory of Endocrinology of National Health Commission of the People's Republic of China, Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Zhang DD, Li P, Hu PZ, Wang GN, Zhao WG, Zhang YP, Li WC. [Peripheral T-cell lymphoma with follicular helper of T cell phenotype of Waldeyer's ring: a clinicopathological and genetic study of eight cases]. Zhonghua Bing Li Xue Za Zhi 2020; 49:686-692. [PMID: 32610379 DOI: 10.3760/cma.j.cn112151-20200213-00093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the clinicopathologic and genetic features of Waldeyer's ring peripheral T-cell lymphoma with follicular helper T cell immunophenotypes (wPTCL-TFH), with comparison to the nodal peripheral T-cell lymphoma with TFH immunophenotypes (nPTCL-TFH) and angioimmunoblastic T-cell lymphoma (AITL), as to know this rare tumor better. Methods: The clinical data, histopathology features, EBV positivity, T cell clonality and IDH2(R172) gene mutation in 8 cases of wPTCL-TFH were collected at the First Affiliated Hospital of Zhengzhou University from December 2015 to April 2019, and analyzed by immunohistochemistry, in situ hybridization, TCR gene rearrangement (BIOMED-2) and Sanger sequencing.Follow-up data were obtained by telephone. Results: There were 6 males and 2 females with a median age of 62.5 years (age ranging from 30 to 75 years). All patients had neither fever nor skin manifestations, but were all found mucosa thickened or mass of waldeyer's ring with multiple lymph nodes enlarged by PET-CT/CT scans. Five of the 7 patients were at advanced stages (Ⅲ/Ⅳ stage). Microscopically, the mucosa was infiltrated diffusely and characteristically by numerous small-medium sized lymphocytes, lacking polymorphous inflammatory background and extra-follicular expansion of follicular dendritic cell networks (FDC networks). The clear T cells presented in 5 cases. Ulcers on mucosal surfaces (6 cases) and local-extensive loss of intramucosal glands (7 cases) were commonly noted. Granulomas composed of epithelioid histiocytes were observed in 2 cases. Immunohistochemically, all the tumor cells expressed CD4 and at least 2 types of follicular helper of T cell (TFH) markers: PD-1 (8/8), bcl-6 (8/8), CXCL13 (7/8) and CD10 (1/8). Most of the cases (6 cases) expressed CD30. EBV positive appeared in 4 cases. All 8 cases were T cell monoclonal. IDH2(R172) were wild-type in 6 cases. One patient died at the follow-up time on 18 months; the other 7 survived (the follow-up time varied from 3 to 10 months). Conclusions: wPTCL-TFH is rare, and its clinicopathological features are similar to nPTCL-TFH which may be the manifestation of the same disease at different stage, and partly overlapped with AITL. The differential diagnosis from PTCL-NOS is necessary and comprehensive analyses of clinical, morphological, immunohistochemical and genetic features can help make a correct diagnosis.
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Affiliation(s)
- D D Zhang
- Department of Pathology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - P Li
- Department of Pathology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - P Z Hu
- Department of Pathology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - G N Wang
- Department of Pathology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - W G Zhao
- Department of Pathology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y P Zhang
- Department of Pathology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - W C Li
- Department of Pathology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Yang J, Jiang ZM, Yu K, Lu Q, Xu JY, Zhao WG, Li XX, Kang WM, Ye X, Zhang XN, Xu HX, Li JY. [The development of malnutrition assessment criteria and the analysis of current problems]. Zhonghua Wai Ke Za Zhi 2019; 57:331-336. [PMID: 31091586 DOI: 10.3760/cma.j.issn.0529-5815.2019.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
It is well known that parenteral and enteral nutrition support is helpful to improve clinical outcomes in patients with malnutrition or nutritional risk, and surgical nutrition has been used in China for 40 years. However, there is still insufficient awareness of malnutrition among clinical workers. There were different opinions from many experts after the publications of the European Society for Parenteral and Enteral Nutrition (ESPEN) consensus of malnutrition assessment 2015 and ESPEN guidelines on definitions and terminology of clinical nutrition 2017. Global Leadership Initiative on Malnutrition (GLIM) criteria for the diagnosis of malnutrition has also been published in 2018. Though it is lack of clinical validation, it is a big step forward. In order to achieve better prevention and treatment of malnutrition in clinical work, this present paper analyzes and compares the core contents of malnutrition assessment (diagnosis) in recent years, proposes current practical strategy for Chinese clinical workers, emphasizes that GLIM criteria cannot replace the three steps named "screening-assessment-intervention" .
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Affiliation(s)
- J Yang
- Department of Clinical Nutrition, the Third Affiliated Hospital of Chongqing Medical University, Chongqing 401120, China
| | - Z M Jiang
- Department of General Surgery, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - K Yu
- Department of Health-Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Q Lu
- Division of Medical and Surgical Nursing, School of Nursing, Peking University, Beijing 100191, China
| | - J Y Xu
- Department of General Surgery, National Aging Medical Center, Beijing Hospital, Beijing 100730, China
| | - W G Zhao
- Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X X Li
- Department of Pharmacy, Peking University Third Hospital, Beijing 100191, China
| | - W M Kang
- Department of General Surgery, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X Ye
- Department of General Surgery, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X N Zhang
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - H X Xu
- Department of Clinical Nutrition, Army Medical Center of People's Liberation Army, Chongqing 400042, China
| | - J Y Li
- Department of Medical Oncology, the First Affiliated Hospital of Xiamen University, Xiamen 361003, China
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11
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Tang H, Wei YX, Yang WL, Shang HB, Zhao WG, Wu ZB. [Improvement and effect analysis of a new neuroendoscopic trans-nasal-sphenoidal pituitary tumor resection approach]. Zhonghua Yi Xue Za Zhi 2019; 98:3021-3024. [PMID: 30392261 DOI: 10.3760/cma.j.issn.0376-2491.2018.37.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To modify the individual neuroendoscopic surgical approach of pituitary tumors with specific imaging features, and to analyze the clinical outcomes. Methods: The clinical data of 116 patients with pituitary tumors who underwent surgical treatment at the pituitary tumor diagnosis and treatment center of Ruijin Hospital from April 2014 to December 2017 were collected, then the resection effects and complication rates of pituitary tumors from three different kinds of transsphenoidal approaches (e.g. classical single nostril approach, bilateral approach, "one-and-a-half" approach) were compared. Results: Pituitary tumor resection with "one-and-a-half" trans-nasal-sphenoidal approach achieved the same surgical effects with the bilateral approach, which was difficult to resect with the single-nostril classical approach. And it had significant advantages in the average length of postoperative hospitalization ( "one-and-a-half" : 6.9 days, bilateral: 12.5 days, P<0.01), the average postoperation VAS of olfactory retention ( "one-and-a-half" : 8.6, bilateral: 7.0, P<0.01) and preventing posterior nasal septum perforation (the occurrence rate of "one-and-a-half" : 0%, bilateral: 27%). Conclusion: The "one and a half" approach increases the ability to control and completely resect the lesion beyond the medial edge of the internal carotid artery on the same side of the nostril involving endoscope. It is a good supplement and improvement to the bilateral approach.
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Affiliation(s)
- H Tang
- Department of Neurosurgery, Center of Prolactinoma, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
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12
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Liu Q, Zhang C, Li QQ, Zhu Y, Zhang D, Zhao WG, Gu H. [Analysis of prognosis and associated risk factors in pediatric idiopathic pulmonary arterial hypertension]. Zhonghua Er Ke Za Zhi 2018; 56:23-28. [PMID: 29342993 DOI: 10.3760/cma.j.issn.0578-1310.2018.01.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the prognosis and associated risk factors of pediatric idiopathic pulmonary arterial hypertension. Methods: A total of 119 patients under 18 years of age diagnosed as idiopathic pulmonary arterial hypertension in the Pulmonary Arterial Hypertension Center in Beijing Anzhen Hospital between June 2007 and May 2017 were enrolled in this retrospective study. The clinical informations and follow-up data were collected. The endpoints of follow-up were defined as death or undergoing lung transplantation. Kaplan-Meier survival curve was used to assess the survival,and the COX risk regression model was used to analyze the prognostic risk factors. Results: The mean age at diagnosis was (5.9±4.2) years. For 92 (77.5%) patients, the main reason for visit was decreased activity with shortness of breath after exercise. Seventy patients (58.8%) were in baseline NYHA functional class Ⅲ-Ⅳ and 49 patients (41.2%) were in NYHA functional class Ⅰ-Ⅱ. The mean systolic pulmonary arterial pressure estimated by echocardiography was (90±23) mmHg (1 mmHg=0.133 kPa) . Right heart catheterization was performed in 50 patients. Hemodynamic parameters revealed that the mean pulmonary artery pressure was (66±19) mmHg. Mean right atrium pressure was (8.5±3.4) mmHg. Mean pulmonary vascular resistance index was (17±9) wood·m(2) and the mean cardiac index was (3.4±1.3)L/m(2); 100 patients (84.0%) received targeted therapy in which 55 patients (46.2%) were on monotherapy,40 patients (33.6%) were on dual therapy and 5 patients (4.2%) were on triple therapy. The mean time of follow-up was 22.0 months (0-108 months). During follow-up, 43 patients (36.1%) died and 1 patient received double-lung transplantation. Main causes of death including right heart failure, pulmonary hypertension crisis, asphyxia and massive hemoptysis. The mean survival time from diagnosis was 37.0 months,1-,2-,3-and 5-year survival rates were 86.3%, 72.2%, 51.4%and 37.8% respectively. Survival analysis showed that patients in baseline NYHA functional class Ⅰ-Ⅱ had better prognosis. COX regression analysis showed that NYHA function class, edema, increased total bilirubin and troponin concentration and the pulmonary artery and aorta diameter ratio measured by echocardiogram are risk factors of pediatric IPAH (HR=2.310, 2.723, 1.066, 1.696, 3.719, P=0.028, 0.005, 0.001, 0.024, 0.030) . While the existence of aterial septal defect or patent foramen ovale, using bosentan and phosphodiesterase inhibitors(,) dual or triple therapy were protective factors (HR=0.563, 0.559, 0.603, 0.682, 0.044, P=0.169, 0.076, 0.115, 0.258, 0.220) . In multivariate analysis only edema associated with decreased survival (HR=2.398, P=0.025) . Conclusion: Childhood idiopathic pulmonary arterial hypertension patients are seriously ill at visit. Worse cardiac function classification at visit associate with high mortality. Target therapy including using bosentan, dual or triple therapy can improve survival.
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Affiliation(s)
- Q Liu
- Department of Pediatric Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Disease, Beijing 100029, China
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13
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Abstract
Moyamoya disease (MMD) is a progressive occlusive disease of the distal internal carotid artery that is primarily treated by superficial temporal artery-middle cerebral artery (STA-MCA) bypass. Despite its effectiveness, several postoperative complications have been reported with STA-MCA bypass. Cerebral hyperperfusion syndrome (CHS) after STA-MCA has attracted considerable attention as a hemodynamics-related complication because more cases of CHS after STA-MCA bypass are reported in MMD than in non-MMD patients. The mechanisms underlying CHS after revascularization in MMD patients are poorly understood. This report presents a comprehensive review of the literature on CHS after revascularization in MMD patients, focusing on the pathogenesis, clinical features, imaging techniques, treatment, and prognosis of CHS. Impaired cerebrovascular autoregulation has been implicated in the pathogenesis of CHS, which is characterized by unilateral headache, face and eye pain, seizures, and focal neurological deficits secondary to cerebral edema, and intracranial hemorrhage. Imaging techniques, such as single photon emission computed tomography (SPECT), 3-T magnetic resonance imaging/angiography, and selective arterial spin-labeling magnetic resonance imaging, are valuable for identifying patients at risk for CHS. Treatment strategies include strict blood pressure control, intracranial hemorrhage prevention, and free oxygen radical scavenger administration. Most patients can achieve a satisfying prognosis after effective treatment.
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Affiliation(s)
- W G Zhao
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, P R China
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14
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Li N, Zhao WG, Pu CH, Shen JK. Clinical Application of Artificial Dura Mater to Avoid Cerebrospinal Fluid Leaks after Microvascular Decompression Surgery. ACTA ACUST UNITED AC 2005; 48:369-72. [PMID: 16432788 DOI: 10.1055/s-2005-915629] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVE Although technological advances combined with many surgical innovations have helped to minimize its occurrence, cerebrospinal fluid (CSF) leak still remains to be one of the most common postoperative complications following microvascular decompression (MVD) surgeries. The objectives of this study are 1) to detail our experience with the clinical application of artificial dura mater for the avoidance of CSF leaks in a group of 103 patients who underwent MVD surgeries and 2) to compare the results of CSF leak and deep wound infection between the group with and one without using artificial dura mater. METHODS From July, 2002 to June, 2004 217 consecutive patients who underwent MVD surgeries for hemifacial spasm or trigeminal neuralgia in our center were enrolled into this study. Among them, 103 patients underwent the application of artificial dura mater (Neuro-patch) in the surgical closure procedure to prevent postoperative CSF leak. The handling techniques were detailed and the postoperative results were evaluated. The follow-up period was at least 6 months. RESULTS No postoperative CSF leak occurred in the group of patients receiving artificial dura mater whereas 6 cases of CSF leak (2 otorrhea, 2 rhinorrea and 2 CSF wound leak) were found in the group not receiving artificial dura mater. There was no statistical difference of wound infection rates found between these two groups, 1.9 % vs. 2.6 %. CONCLUSIONS The use of the artificial dura mater in the closure procedure of MVD surgery seems to be a safe and effective way to prevent CSF leaks. However, further investigations on a larger number of cases still need to be done to substantiate its validity.
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Affiliation(s)
- N Li
- Department of Neurosurgery, Rui jin Hospital, Shanghai Second Medical University, Shanghai 200-025, People's Republic of China.
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15
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Wu HX, Wang JF, Zhang CY, Fu LZ, Pan ZS, Wang N, Zhang PW, Zhao WG. Attenuated lapinized chinese strain of classical swine fever virus: complete nucleotide sequence and character of 3'-noncoding region. Virus Genes 2002; 23:69-76. [PMID: 11556404 DOI: 10.1023/a:1011187413930] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The complete nucleotide sequence including precise 5'- and 3'-terminal non-coding regions (NCRs) of the attenuated lapinized Chinese strain (HCLV) of Classical Swine Fever Virus (CSFV) was determined from overlapping cDNA clones constructed by separated RT-PCR and rapid amplification of cDNA ends (RACE) methods. The genomic RNA of the HCLV strain consists of 12.310 nucleotides (nts) including 374 nts and 242nts in the 5'- and 3'-NCRs, respectively. It contains one large open reading frame (ORF) encoding a polyprotein of 3,898 amino acids with a calculated molecular weight of 437.6 kDa. There is one notable insertion of 12 continuous nts, CTTTTTTCTTTT in the 3'-NCR of HCLV genomic cDNA when compared with its parental virulent Shimen strain. Sequence alignment of partial 3'-NCR reveals two groups of CSFV vaccine strains carrying similar T-rich insertions at different positions in this region. Computer-predicted secondary structures suggest that T-rich insertion greatly change the structures and thus decrease the promoter functions of 3'-NCRs during the replications of these two groups of CSFV vaccine strains.
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Affiliation(s)
- H X Wu
- Department of Virology, College of Life Sciences, Wuhan University, PR China
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16
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Lin KM, Zhao WG, Bhatnagar J, Zhao WD, Lu JP, Simko S, Schueneman A, Austin GE. Cloning and expression of human HBP1, a high mobility group protein that enhances myeloperoxidase (MPO) promoter activity. Leukemia 2001; 15:601-12. [PMID: 11368363 DOI: 10.1038/sj.leu.2402071] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Factors which regulate transcription in immature myeloid cells are of great current interest for the light they may shed upon myeloid differentiation. In the course of screening for transcription factors which interact with the human myeloperoxidase (MPO) promoter we, for the first time, identified and cloned the cDNA and genomic DNA for human HBP1 (HMG-Box containing protein 1), a member of the high mobility group of non-histone chromosomal proteins. HBP1 cDNA was initially cloned from rat brain in 1994, but its presence in human cells or in myeloid tissue had not been described previously. The sequence of human HBP1 cDNA shows 84% overall homology with the rat HBP1 cDNA sequence. We have subsequently cloned the gene, which is present as a single copy, 25 kbp in length. Northern blotting reveals a single 2.6 kb mRNA transcript which is expressed at higher levels in human myeloid and B lymphoid cell lines than in T cell lines tested and is present in several non-myeloid human cell lines. Comparison of the mRNA and genomic sequences reveals the gene to contain 10 exons and 9 introns. The sequence of human HBP1 mRNA contains a single open reading frame, which codes for a protein 514 amino acids in length. The amino acid sequence specified by the coding region shows 95% homology with the rat HBP1 protein. The human protein sequence exhibits a putative DNA-binding domain similar to that seen in rat HBP1 and shows homology with the activation and repressor domains previously demonstrated in the rat protein. We have expressed human HBP1 protein both in vitro and in prokaryotic and eukaryotic cells. The expressed fusion protein binds to a sequence in a functionally important region within the basal human MPO promoter. In transient co-transfection experiments HBP1 enhances MPO promoter activity. Human HBP1 appears to be a novel transcription factor which is likely to play an important role in regulating transcription in developing myeloid cells.
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Affiliation(s)
- K M Lin
- Department of Pathology and Laboratory Medicine, Veterans Affairs Medical Center, Decatur, GA 30033, USA
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17
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Wang YJ, Yang XJ, Zhang YH, Zhao WG. [Determination of beberine hydrochloride and puerarin in tangwei capsules by RP-HPLC of gradient elution method]. Se Pu 2000; 18:465-7. [PMID: 12541715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023] Open
Abstract
A reversed-phase high performance liquid chromatographic gradient elution method was developed for the determination of beberine hydrochloride and puerarin in Tangwei capsules. Separation was obtained by using Hypersil ODS (150 mm x 4.6 mm i.d., 5 microns) column and mobile phase of methanol and acetic acid, triethylamine water solution. Detection was performed with UV detector at 230 nm. The column temperature was 35 degrees C. The calibration curves were linear within the range of 0.18 microgram-1.66 micrograms for beberine hydrochloride (n = 5, r = 0.9999) and 0.09 microgram-0.89 microgram for puerarin (n = 5, r = 0.9998). The recovery and RSD of beberine hydrochloride were 98.2% and 1.6% and those of puerarin were 97.5% and 1.8%, respectively.
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Affiliation(s)
- Y J Wang
- Changchun Municipal Institute for Drug Control, Changchun 130061, China
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18
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Austin GE, Alvarado CS, Austin ED, Hakami N, Zhao WG, Chauvenet A, Borowitz MJ, Carroll AJ. Prevalence of myeloperoxidase gene expression in infant acute lymphocytic leukemia. Am J Clin Pathol 1998; 110:575-81. [PMID: 9802341 DOI: 10.1093/ajcp/110.5.575] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The enzyme myeloperoxidase (MPO; donor: H2O2 oxidoreductase, EC1.11.1.7) is a well-established marker of myeloid differentiation. Most myeloid leukemias express MPO enzyme activity at the light microscopic level, whereas lymphoid leukemias characteristically lack such expression. However, the diagnostic significance of MPO RNA expression or of immunohistochemically detectable MPO protein expression in leukemic blasts is unclear. We studied the prevalence and diagnostic significance of MPO RNA and protein expression in 57 cases of MPO enzyme-negative infant B-precursor acute lymphocytic leukemia (ALL), since the blast cells in this condition have been reported to show a high incidence of coexpression of myeloid-associated antigens. MPO expression was compared with other clinical and laboratory parameters. Of the cases examined, 56% showed detectable MPO expression at the RNA or protein level or both. Most positive cases showed MPO protein in many leukemic blasts, whereas a few cases showed substantial MPO protein expression in only a few blast cells. MPO expression showed no significant correlation with other markers of myeloid differentiation. Leukemic lymphoblasts in infant ALL frequently express MPO at the RNA or protein level; this expression does not imply an overall myeloid phenotype. The leukemic blasts in infant ALL may derive from an immature hematopoietic precursor cell not fully committed to lymphoid differentiation.
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Affiliation(s)
- G E Austin
- Department of Pathology and Laboratory Medicine, Veterans Affairs Medical Center, Decatur, Georgia, USA
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19
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Abstract
Myeloperoxidase (MPO) is an important antibacterial enzyme found only in granulocytes and monocytes. The human MPO gene is transcribed early during myelogenesis but MPO RNA synthesis ceases at the end of the promyelocyte stage of myeloid maturation. We recently identified a basal MPO promoter and several adjacent cis-elements in the proximal 5'-flanking region of this gene. Transfection studies using constructs containing several kb of 5'-flanking MPO DNA revealed the presence of a DNA segment located between bp (base pair) -4200 and bp -3800 with enhancer activity for the endogenous basal MPO promoter. Deletion studies revealed the core enhancer activity to lie between bp -4100 and bp -3844. The percentage enhancement of promoter activity is greater in MPO-expressing myeloid cells than in MPO-non-expressing myeloid cells or non-myeloid cells. Furthermore. the enhancer confers TPA- or DMSO-responsiveness upon either endogenous or exogenous promoters. DNase I footprinting and transfection experiments identified an AML1 site as a functionally important element within the enhancer. Gelshift competition and supershift experiments demonstrated the binding of the alpha subunit of the transcription factor AML1 to this site in HL-60 cells. This distal enhancer appears likely to play an important role in the control of MPO transcription during myeloid differentiation.
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Affiliation(s)
- G E Austin
- Department of Pathology and Laboratory Medicine, Veterans Affairs Medical Center, Decatur, GA 30033, USA.
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20
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Zhao WG, Lu JP, Regmi A, Austin GE. Identification and functional analysis of multiple murine myeloperoxidase (MPO) promoters and comparison with the human MPO promoter region. Leukemia 1997; 11:97-105. [PMID: 9001423 DOI: 10.1038/sj.leu.2400540] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Myeloperoxidase (MPO) is an important component of the oxidative antibacterial defense system of granulocytes. Mammalian MPO gene expression has been most extensively studied in human and murine cells. Transcription of the human MPO gene appears to begin at a single initiation site and we have recently described the isolation and characterization of the corresponding human MPO promoter. On the other hand, MPO transcripts in murine myeloid cells show several distinct 5'-termini, suggesting the existence of multiple murine MPO promoters. However, significant levels of endogenous murine MPO promoter activity have not been demonstrated heretofore, although several murine MPO enhancers have been described. We now report the identification and preliminary functional characterization of four distinct murine MPO promoters. Sequence comparison of the human and murine MPO promoter regions reveals homologues of three out of four of these murine promoters within the human MPO gene. However, only one of these sites appears to be functionally active in human myeloid cells, possibly because of the interposition of Alu sequences between the putative promoter sites in the human gene.
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Affiliation(s)
- W G Zhao
- Department of Pathology, Veterans Affairs Medical Center, Decatur, GA 30033, USA
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21
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Affiliation(s)
- G E Austin
- Department of Pathology and Laboratory Medicine, Veterans Affairs Medical Center, Decatur, GA 30033, USA
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22
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Zhao WG, Regmi A, Austin ED, Braun JE, Racine M, Austin GE. Cis-elements in the promoter region of the human myeloperoxidase (MPO) gene. Leukemia 1996; 10:1089-103. [PMID: 8683986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
We recently reported the identification and initial characterization of the human myeloperoxidase (MPO) promoter. The minimal or basic MPO promoter lies within the proximal 128 bp of the 5'-flanking region of the MPO gene. Plasmids containing progressively larger segments of the 5'-flanking region show correspondingly greater MPO promoter activity and increased tissue specificity compared with smaller promoter fragments. These findings suggested the presence of a multiple important regulatory cis-elements in the 5'-flanking region of the MPO gene. We now report results of studies which reveal the presence of seven discrete nuclear protein binding sites (DP1-DP7) within the proximal 600 bp of 5'-flanking MPO DNA. DNase I footprinting and gel shift analyses indicate tissue-specific and/or maturation-specific differences in nuclear protein binding to most of these sites, suggesting that they play a role in transcriptional regulation. Mutation of site DP7 stimulates the activity of a 594-bp MPO promoter construct in transfection studies, whereas mutation of any of the six other sites (DP1-DP6) reduces promoter activity. These results indicate that oligonucleotides DP1-DP7 constitute cis-elements which contribute to the activity of the human MPO promoter.
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Affiliation(s)
- W G Zhao
- Department of Pathology, Veterans Affairs Medical Center, Decatur, GA 30033, USA
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23
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Austin GE, Zhao WG, Zhang W, Austin ED, Findley HW, Murtagh JJ. Identification and characterization of the human myeloperoxidase promoter. Leukemia 1995; 9:848-57. [PMID: 7769848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Myeloperoxidase (MPO) is a microbicidal protein present in the primary granules of myeloid cells. Transcription of the MPO gene is turned on only during the late myeloblast and promyelocyte stages of myeloid maturation. Identification of cis-regulatory elements and transcription factors which regulate the MPO gene should, therefore, shed light on myeloid maturation. We report transfection and in vitro transcription experiments which demonstrate promoter activity in the proximal 5'-flanking region of the human MPO gene. Using a chloramphenicol acetyl transferase (CAT) reporter vector system, and segments of the 5'-flanking MPO DNA, we constructed a series of MPO promoter-CAT expression vectors. By electroporation and lipofectin-mediated transient transfection assays, as well as by in vitro transcription studies, a 594-bp MPO DNA sequence (bp -583 to +11) showed promoter activity in a variety of MPO-expressing and non-MPO-expressing cell lines. Compared with the SV40 early promoter, the MPO promoter had greater relative activity in MPO-expressing than in non-MPO-expressing cell lines, suggesting slight tissue specificity. However, a CAT reporter plasmid containing 1099-bp of 5'-flanking MPO DNA showed greater specificity for MPO expressing cell lines. Analysis of a group of promoter deletion mutants showed that the minimal promoter was contained in a DNA fragment extending from bp-128 to +11. The remainder of the promoter region contained several segments which appeared to enhance the activity of the minimal promoter. One such enhancer sequence was homologous to an enhancer previously described in the human elastase promoter. Activity of the 594-bp MPO promoter in HL-60 was reduced by only approximately 30% following treatment of the cells with chemical inducers of maturation, but the 1099-bp MPO promoter showed 60% reduction in activity after DMSO treatment. A previously described enhancer region in intron 9 of the MPO gene had little or no effect on activity of the 594-bp MPO promoter. The availability of the MPO promoter will facilitate determination of other factors involved in the regulation of this myeloid-specific gene.
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MESH Headings
- Base Sequence
- Chromosome Mapping
- DNA, Neoplasm/genetics
- Dimethyl Sulfoxide/pharmacology
- Gene Deletion
- Genetic Complementation Test
- HeLa Cells
- Humans
- Introns
- Leukemia, Erythroblastic, Acute/enzymology
- Leukemia, Erythroblastic, Acute/genetics
- Leukemia, Myeloid, Acute/enzymology
- Leukemia, Myeloid, Acute/genetics
- Molecular Sequence Data
- Peroxidase/genetics
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/enzymology
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/genetics
- Promoter Regions, Genetic/drug effects
- Sensitivity and Specificity
- Tetradecanoylphorbol Acetate/pharmacology
- Transcription, Genetic
- Transfection
- Tumor Cells, Cultured
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Affiliation(s)
- G E Austin
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA, USA
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24
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Abstract
Endothelin-mediated vasoconstriction may theoretically aggravate ischemic neuronal damage. Although investigators have demonstrated that endothelins are produced by cerebral microvessel endothelial cells, astrocytes and neurons in vitro, whether endothelins are produced during cerebral ischemia is still unclear. The purpose of this study, therefore, was to measure endothelin-1 in brain tissue and plasma following middle cerebral artery occlusion and to examine the relationship between brain tissue and plasma endothelin-1 levels. The middle cerebral artery of rabbits was occluded for 2, 4 or 24 h. The amount of endothelin-1 in both brain tissue and plasma was determined by RIA. The results demonstrate that the concentrations of endothelin-1 in the ischemic brain tissue and plasma are both significantly increased after focal cerebral ischemia (P < 0.01). The data confirm that an acute and marked increase of endothelin-1 in brain tissue and plasma is associated with focal ischemic events. The possibility that endothelin-1 has a role in neuronal cell damage following focal ischemia warrants further attention.
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Affiliation(s)
- L G Bian
- Department of Neurosurgery, Rui Jin Hospital, Shanghai Second Medical University, China
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25
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Hakes DJ, Martell KJ, Zhao WG, Massung RF, Esposito JJ, Dixon JE. A protein phosphatase related to the vaccinia virus VH1 is encoded in the genomes of several orthopoxviruses and a baculovirus. Proc Natl Acad Sci U S A 1993; 90:4017-21. [PMID: 8387208 PMCID: PMC46437 DOI: 10.1073/pnas.90.9.4017] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
The vaccinia virus VH1 gene product is a dual specificity protein phosphatase with activity against both phosphoserine- and phosphotyrosine-containing substrates. We investigated the potential presence of VH1 analogs in other viruses. Hybridization and sequence data indicated that a phosphatase related to the VH1 phosphatase is highly conserved in the genomes of smallpox variola virus and other orthopoxviruses. The open reading frames from the raccoonpox virus and the smallpox variola virus Bangladesh major strain genomes encoding the VH1 analogs were sequenced and found to be highly conserved with the vaccinia virus VH1. An open reading frame from the baculovirus Autographa californica has sequence similarity to the VH1 phosphatase. The viral proteins appear to be structurally related to the cell cycle control protein p80cdc25. A recombinant phosphatase expressed from the baculovirus gene was found to share with the VH1 phosphatase the ability to hydrolyze substrates that contained both phosphoserine and phosphotyrosine.
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Affiliation(s)
- D J Hakes
- Department of Biological Chemistry, University of Michigan, Ann Arbor 48109-0606
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Zhao WG, Richardson JS. Prostacyclin, thromboxane A2, and hypertension. CLIN INVEST MED 1990; 13:343-52. [PMID: 2078914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Prostacyclin and thromboxane A2, products of separate branches of the arachidonic acid cascade, can have opposing effects on kidney function and on the vascular musculature. Prostacyclin acts as a vasodilator while thromboxane A2 has a vasoconstrictor effect and the balance between these two compounds appears to contribute to the homeostatic regulation of normal blood pressure. In the hypertensive state, this balance is disrupted and, at least in animal models of hypertension, there is excessive production of both. The increase in prostacyclin formation may be a reaction to the elevated blood pressure, possibly due to mechanical stimulation of the vascular smooth muscle cells in the blood vessel wall. However, the increase in thromboxane A2 may be more directly involved in the development and maintenance of hypertension. Not only is thromboxane A2 a vasoconstrictor but it can also stimulate the growth and proliferation of vascular smooth muscle cells which may account for the vascular hypertrophy seen in hypertension. Both of these actions would increase total peripheral resistance and contribute to hypertension. Whether prostacyclin and thromboxane A2 are in fact involved as causative agents in essential hypertension must await future research.
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Affiliation(s)
- W G Zhao
- Department of Neurology, Shandong Medical University, People's Republic of China
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Tang FZ, Guo JA, Zhao WG, Tang SY, Xie YJ, Li GM. [Anti-arrhythmic effects of sodium selenite]. Zhongguo Yao Li Xue Bao 1983; 4:244-7. [PMID: 6230868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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28
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Guo JA, Tang FZ, Li GM, Zhao WG. [Influence of sodium selenite on cardiac myodynamic effects (author's transl)]. Zhongguo Yao Li Xue Bao 1982; 3:25-9. [PMID: 6211898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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29
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Guo JA, Li GM, Zhao WG, Tang FZ, Zhang X, Zhang CY. [Cardiovascular effects of sodium selenite (author's transl)]. Zhongguo Yao Li Xue Bao 1981; 2:93-7. [PMID: 6461221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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