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Le DT, Bui LT, Nguyen CV, Do KH, Tran GL, Do TA. Neoadjuvant Doxorubicin-Paclitaxel Combined Chemotherapy in Patients with Inoperable Stage III Breast Cancer: A Retrospective Cohort Study with 10 Years of Follow-Up in Vietnam. Oncol Ther 2023; 11:327-341. [PMID: 37289321 PMCID: PMC10447719 DOI: 10.1007/s40487-023-00233-8] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 05/11/2023] [Indexed: 06/09/2023] Open
Abstract
INTRODUCTION The combination of doxorubicin and paclitaxel (AP) is widely used in our country for the neoadjuvant treatment of breast cancer as well as metastatic breast cancer. The AP regimen has shown promise as a neoadjuvant therapy for breast cancer that improves pathological complete response (pCR), increases the rate of conservative surgery, and improves the survival of patients. However, up to now, no research has evaluated the response of this regimen for the neoadjuvant treatment of advanced breast cancer, especially with a 10-year period of follow-up. METHODS This retrospective analysis reviewed 126 patients with inoperable stage III breast cancer who received neoadjuvant chemotherapy with doxorubicin 50 mg/m2 plus paclitaxel 175 mg/m2 every 3 weeks for a maximum of six courses followed by surgery. pCR was evaluated. Survival was analyzed for all breast cancer patients using Kaplan-Meier and log-rank models. RESULTS Of 126 women treated with neoadjuvant chemotherapy (NAC), the overall pCR rate was 25.4% and was significantly higher in patients with tumor stage cT1-T2, hormone receptor-negative (HR-negative), and human epidermal growth factor receptor 2 (HER2)-positive disease. Patients achieving pCR had significantly longer disease-free survival (DFS) and overall survival (OS). Ten-year DFS rates were 43.8% vs. 25.0% (p = 0.030) and 10-year OS rates were 59.4% vs. 28.9% (p = 0.003) for patients with pCR and non-pCR, respectively. The cumulative 10-year DFS was 19.6% for patients with HR-negative disease and 37.3% for those with HR-positive disease. Achieving pCR was associated with improved 10-year OS and DFS. Several clinicopathological features were closely associated with pCR in the inoperable stage III breast cancer patients who were treated by neoadjuvant chemotherapy. CONCLUSION Achieving pCR was associated with improved 10-year OS and DFS. Patients with advanced breast cancer with HR-negative and HER2-positive status who benefited from the AP neoadjuvant therapy regimen were significantly more likely to achieve pCR.
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Affiliation(s)
- Duc Thanh Le
- Department of Medical Oncology 5, National Cancer Hospital, Hanoi, Vietnam
| | - Lap Thanh Bui
- Department of Medical Oncology 5, National Cancer Hospital, Hanoi, Vietnam
| | - Chu Van Nguyen
- Quansu Pathology Department, National Cancer Hospital, Hanoi, Vietnam
- Clinicopathology Department, Hanoi Medical University, Hanoi, Vietnam
| | - Kien Hung Do
- Department of Medical Oncology 1, National Cancer Hospital, Hanoi, Vietnam
| | - Giang Le Tran
- Scientific Research Department, Hanoi Medical University, Hanoi, Vietnam
| | - Tu Anh Do
- Department of Medical Oncology Tamhiep, National Cancer Hospital, Vietnam, No 30 Cau Buou, Tan Trieu, Thanh Tri, Hanoi, 100000, Vietnam.
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Do KH, Nguyen TV, Do TA, Le DT, Nguyen PTB, Nguyen CV. Rare T263P epidermal growth factor receptor extracellular domain mutation of advanced non-small cell lung cancer in a Vietnamese male patient. Respirol Case Rep 2023; 11:e01170. [PMID: 37273450 PMCID: PMC10233332 DOI: 10.1002/rcr2.1170] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 05/17/2023] [Indexed: 06/06/2023] Open
Abstract
T263P mutation is one of the rare EGFR mutations located on chromosome 7p11.2, which is a change in amino acid residue at position 263 of the epidermal growth factor receptor protein, where L-threonine has been replaced by L-proline. This missense mutation in the extracellular EGFR domain is not well-known in lung cancer. In this study, we first report a patient with advanced lung adenocarcinoma harbouring only a rare T263P EGFR mutation who benefited from first-line afatinib therapy in Vietnam. The patient achieved a partial response with a time-to-treatment failure of 5 months. The patient subsequently received several chemotherapy regimens as the disease progressed, with overall survival of 17 months. Non-small cell lung cancer with a rare T263P EGFR mutation responds to afatinib but has a poor prognosis. Further studies are needed to determine the efficacy of targeted therapies in this specific population.
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Affiliation(s)
- Kien Hung Do
- Vietnam National Cancer Hospital—K HospitalHanoiVietnam
- Department of Medical Oncology IVietnam National Cancer Hospital—K HospitalHanoiVietnam
| | - Tai Van Nguyen
- Vietnam National Cancer Hospital—K HospitalHanoiVietnam
- Department of Medical Oncology IVietnam National Cancer Hospital—K HospitalHanoiVietnam
- PhD student in OncologyHanoi Medical UniversityHanoiVietnam
| | - Tu Anh Do
- Vietnam National Cancer Hospital—K HospitalHanoiVietnam
| | - Duc Thanh Le
- Vietnam National Cancer Hospital—K HospitalHanoiVietnam
| | - Phuong Thi Bich Nguyen
- Vietnam National Cancer Hospital—K HospitalHanoiVietnam
- Department of Medical Oncology IVietnam National Cancer Hospital—K HospitalHanoiVietnam
- PhD student in OncologyHanoi Medical UniversityHanoiVietnam
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Do KH, Pham CTM, Do TC, Hoang TT, Hoang TA, Nguyen CV, Bui GV, Ngo LL, Van Nguyen T, Le QV. Clinical features and outcome of retinoblastoma at the Vietnam National Cancer Hospital. Pediatr Blood Cancer 2023:e30526. [PMID: 37355858 DOI: 10.1002/pbc.30526] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 05/23/2023] [Accepted: 06/16/2023] [Indexed: 06/26/2023]
Abstract
OBJECTIVES To characterize the clinical features, treatment, and outcome of children diagnosed with retinoblastoma (RB) at Vietnam National Cancer Hospital. METHODS The study enrolled all RB patients newly diagnosed at Vietnam National Cancer Hospital from January 2018 to December 2022. The primary endpoint was overall survival (OS) and the eye salvage rate. RESULTS In total, 139 patients were enrolled, 51.8% patients were male. Median age was 18.9 months. Most patients presented with leukocoria (63.3%), followed by strabismus (14.4%), and 43.9% had bilateral disease. Of 200 eyes, 129 (64.5%) were classified as group E. Extraocular extension was noted in 10 of 139 patients (7.2%). About one-third of the patients lived more than 300 kilometers (km) away from these hospitals, and 17.3% of the patients belonged to minority groups, both of which were dominated by group E and extraocular or high-risk eyes at the time of consultation. Primary enucleation was done for 57 eyes (28.5%), and 51 of 61 patients (83.6%) received eye salvage therapy in bilateral RB group. At study closure, 127 children were alive at the last follow-up, 12 cases were confirmed dead. The 5-year OS and progression-free survival (PFS) rates were 90.3% and 85.9%, respectively. In particular, ethnic minority, distance to hospital more than 150 km, and extraocular disease were significantly associated with higher mortality among children with RB treated in Vietnam National Cancer Hospital. CONCLUSIONS There is a need to support for screening RB with early symptoms in grassroots medical facilities and raise awareness among patients' families through health education programs. Besides, caring and supporting treatment for patients from the ethnic minority and who live far from hospitals are also extremely necessary.
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Affiliation(s)
- Kien Hung Do
- Vietnam National Cancer Hospital - K Hospital, Hanoi, Vietnam
- Department of Pediatric Oncology, Vietnam National Cancer Hospital - K Hospital, Hanoi, Vietnam
- Department of Medical Oncology 1, Vietnam National Cancer Hospital - K Hospital, Hanoi, Vietnam
| | | | - Thanh C Do
- Vietnam National Cancer Hospital - K Hospital, Hanoi, Vietnam
- Department of Pediatric Oncology, Vietnam National Cancer Hospital - K Hospital, Hanoi, Vietnam
- Hanoi Medical University, Hanoi, Vietnam
| | - Trang T Hoang
- Vietnam National Cancer Hospital - K Hospital, Hanoi, Vietnam
- Department of Pediatric Oncology, Vietnam National Cancer Hospital - K Hospital, Hanoi, Vietnam
| | | | - Chu V Nguyen
- Vietnam National Cancer Hospital - K Hospital, Hanoi, Vietnam
- Department of Pathology, Vietnam National Eye Hospital, Hanoi, Vietnam
| | - Giang V Bui
- Department of Diagnostic Imaging and Nuclear Medicine, Vimmec Times City International Hospital, Hanoi, Vietnam
| | - Lam L Ngo
- Vietnam National Cancer Hospital - K Hospital, Hanoi, Vietnam
- Diagnostic and Interventional Radiology Centre, Vietnam National Cancer Hospital - K Hospital, Hanoi, Vietnam
| | - Tai Van Nguyen
- Vietnam National Cancer Hospital - K Hospital, Hanoi, Vietnam
- Department of Medical Oncology 1, Vietnam National Cancer Hospital - K Hospital, Hanoi, Vietnam
| | - Quang V Le
- Vietnam National Cancer Hospital - K Hospital, Hanoi, Vietnam
- Hanoi Medical University, Hanoi, Vietnam
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Do KH, Nguyen TV, Nguyen Thi Bich P, Nguyen GH, Nguyen CV. PD-L1-negative non-small cell lung cancer harbouring a rare BRAF mutation with successful treatment of first-line pembrolizumab plus chemotherapy: A case report and review the literature. Respirol Case Rep 2023; 11:e01155. [PMID: 37151366 PMCID: PMC10156919 DOI: 10.1002/rcr2.1155] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 04/24/2023] [Indexed: 05/09/2023] Open
Abstract
BRAF mutations are uncommon in non-small cell lung cancer (NSCLC), accounting for less than 5% of all NSCLC cases. The utilization of targeted therapies in non-V600E BRAF mutant NSCLC is considered controversial, although non-V600E genotype is reported in ~50% of all BRAF mutant patients. We document the case of a 63-year-old patient with NSCLC harbouring a rare BRAF E501Q mutation, who had prolonged response to immunotherapy combined with chemotherapy in Vietnam. The patient was diagnosed with metastatic PD-L1-negative lung adenocarcinoma and received pembrolizumab plus chemotherapy as first-line treatment. After completing 35 cycles of pembrolizumab and pemetrexed, his disease has remained stable during the treatment-free follow-up period, and he is alive 38 months after treatment initiation at the latest follow-up. Immune-based therapy is an appropriate option for lung adenocarcinoma with rare non-V600E BRAF mutation. Further clinical studies are necessary to determine the effectiveness of using immune-based therapy in this specific population.
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Affiliation(s)
- Kien Hung Do
- Vietnam National Cancer Hospital ‐ K HospitalHanoiVietnam
- Department of Medical Oncology IVietnam National Cancer Hospital ‐ K HospitalHanoiVietnam
| | - Tai Van Nguyen
- Vietnam National Cancer Hospital ‐ K HospitalHanoiVietnam
- Department of Medical Oncology IVietnam National Cancer Hospital ‐ K HospitalHanoiVietnam
| | - Phuong Nguyen Thi Bich
- Vietnam National Cancer Hospital ‐ K HospitalHanoiVietnam
- Department of Medical Oncology IVietnam National Cancer Hospital ‐ K HospitalHanoiVietnam
| | | | - Chu Van Nguyen
- Vietnam National Cancer Hospital ‐ K HospitalHanoiVietnam
- Hanoi Medical UniversityHanoiVietnam
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Do KH, Le DT, Van Nguyen T, Do TA, Van Nguyen C. Prolonged response to first‐generation tyrosine kinase inhibitor in a metastatic non‐small cell lung cancer harbouring complex G719X and S768I mutations: A case report from Vietnam and literature review. Respirol Case Rep 2023; 11:e01131. [PMID: 37008893 PMCID: PMC10052446 DOI: 10.1002/rcr2.1131] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 03/18/2023] [Indexed: 03/31/2023] Open
Abstract
A complex of G719X and S768I mutations is infrequently observed, constituting less than 0.3% of all EGFR‐positive non‐small cell lung cancer (NSCLC), and the response to first‐line TKIs is inconsistent in the literature. In this study, we report a patient with metastatic non‐small cell lung cancer carrying rare EGFR compound mutations of G719X and S768I who benefited from first‐line treatment with gefitinib in Vietnam. This patient had a prolonged response lasting over 44 months with first‐generation TKI. He continued to take gefitinib without experiencing serious adverse events. NSCLC with a rare complex of G719X and S768I mutation revealed a good response to gefitinib.
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Affiliation(s)
| | | | | | - Tu Anh Do
- National Cancer HospitalHanoiVietnam
| | - Chu Van Nguyen
- National Cancer HospitalHanoiVietnam
- Clinicopathology DepartmentHanoi Medical UniversityHanoiVietnam
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Le DT, Do TA, Nguyen LLT, Do KH, Van Nguyen C. Clinical and paraclinical features, outcome, and prognosis of ovarian granulosa cell tumor: A retrospective study of 28 Vietnamese women. Rare Tumors 2022; 14:20363613221148547. [PMID: 36582403 PMCID: PMC9793063 DOI: 10.1177/20363613221148547] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Background: Granulosa cell tumor of the ovary is a rare disease and presents with two clinically and molecularly distinct subtypes: the juvenile and the adult type. GCT is considered as a malignant tumor with an indolent course and a tendency toward late recurrence. Purpose: To assess the clinical and paraclinical features, treatment findings, survival outcomes, and explored the prognostic factors in the granulosa cell tumor. Methods: The current study was conducted on 28 GCT patients who had surgical operations and adjuvant chemotherapy (stage IC-IV) by applying a retrospective cohort analysis. The clinical and paraclinical characteristics were recorded. Recurrent status was evaluated for analysis with clinical and paraclinical features and survival. All GCT patients' survival were analyzed by using Kaplan-Meier and Log-Rank models. Results: 17.9% of patients experienced a relapse and two patients died due to disease. The mean time from initial diagnose to recurrence was 40.21 months. The 5-year OS and DFS of stage I-II were 100% and 80.8%, and of stage III were 50% and 25%, respectively. In survival analyses, using the log-rank test, age ≥50 years, irregular menstruation, stage I-II, and absence of residual lesion were all significant predictors for the improved DFS. Stage I-II and absence of residual lesion were associated significantly with better OS. Mean of age, FIGO stage, and residual lesion during surgery had significant differences to recurrent rate (p < <0.05). The multivariate model revealed that these factors didn't remain as an independent prognostic variable. Conclusion: FIGO stage and residual lesion during surgery had significant differences in survival and recurrent rate.
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Affiliation(s)
- Duc Thanh Le
- National Cancer
Hospital, Hanoi, Vietnam,Chu Nguyen Van, Department of Quan Su
Pathology, National Cancer Hospital, 43 Quansu street, Hangbong Commune,
Hoankiem District, Hanoi 100000, Vietnam.
, Duc Thanh Le, Department of cancer
internal therapy, No5, National Cancer Hospital, 30 Caubuou, Tantrieu, Thanhtri,
Hanoi 100000, Vietnam.
| | - Tu Anh Do
- National Cancer
Hospital, Hanoi, Vietnam
| | | | | | - Chu Van Nguyen
- National Cancer
Hospital, Hanoi, Vietnam,Hanoi Medical
University, Hanoi, Vietnam,Chu Nguyen Van, Department of Quan Su
Pathology, National Cancer Hospital, 43 Quansu street, Hangbong Commune,
Hoankiem District, Hanoi 100000, Vietnam.
, Duc Thanh Le, Department of cancer
internal therapy, No5, National Cancer Hospital, 30 Caubuou, Tantrieu, Thanhtri,
Hanoi 100000, Vietnam.
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Nguyen HT, Do KH, Le NB, Tran T. Treatment Outcome and Safety of the TCX Regimen for Advanced Gastric Cancer: A Prospective Cohort Study. Cancer Manag Res 2022; 14:2825-2837. [PMID: 36164467 PMCID: PMC9507975 DOI: 10.2147/cmar.s384325] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 09/12/2022] [Indexed: 11/23/2022] Open
Abstract
Objective To evaluate the outcome and safety of the paclitaxel, carboplatin, and capecitabine (TCX) regimen in patients with advanced gastric cancer. Methods Advanced gastric cancer patients received the TCX regimen for up to six cycles, which were 3 weeks apart. Paclitaxel (175 mg/m2) was given over a 3-hour infusion, followed by carboplatin in a 1-hour infusion on day 1. Capecitabine (850 mg/m2) was given orally twice daily from day 1 to day 14. Primary endpoints were progression-free survival (PFS) and overall survival (OS). Results Among 83 patients at stage IVa and IVb, the median PFS was 9.3 months; 6-month, 1-year, and 2-year PFS were 74.6%, 32.5%, and 14.4%, respectively. The median OS was 17.0 months; 6-month, 1-year, and 2-year OS were 97.5%, 68.7%, and 21.7%, respectively. In the multivariable Cox regression model, higher CEA was associated with poor OS. Common adverse events included hand-food syndrome (77.9%), peripheral neuropathy (63.2%), fatigue (68.7%), and nausea (54.2%). Conclusion The TCX regimen provided good survival and a better safety profile. More clinical trials are needed to confirm its treatment efficacy and safety, especially in comparison with other triplet regimens.
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Affiliation(s)
- Hieu Trong Nguyen
- Department of Medical Oncology 2, Hanoi Oncology Hospital, Hanoi, Vietnam
| | - Kien Hung Do
- Department of Medical Oncology 1, National Cancer Hospital of Vietnam, Hanoi, Vietnam
| | | | - Thang Tran
- Department of Medical Oncology 4, National Cancer Hospital of Vietnam, Hanoi, Vietnam
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Pham KH, Nguyen CV, Do TA, Pham HT, Do KH, Le DT. Fibromatosis-Like Metaplastic Carcinoma: A Triple-Negative Breast Cancer with Clinically Indolent Behavior. Case Rep Oncol 2022; 15:816-826. [PMID: 36825103 PMCID: PMC9941779 DOI: 10.1159/000526535] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 08/04/2022] [Indexed: 11/19/2022] Open
Abstract
Fibromatosis-like metaplastic carcinoma is a special variant of spindle cell carcinoma, a type of metaplastic carcinomas. It has a favorable prognosis, unlike other metaplastic carcinomas, with a particular clinical behavior characterized by frequent local recurrence, the meager potential for axillary lymph nodes, and distant metastases. We presented the case of a 51-year-old female with a large mass on the left breast, which was successfully removed by surgical resection. The pathological diagnosis was fibromatosis-like metaplastic carcinoma with the help of morphology and immunohistochemistry adjustment.
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Affiliation(s)
| | - Chu Van Nguyen
- aNational Cancer Hospital, Hanoi, Vietnam,bHanoi Medical University, Hanoi, Vietnam,*Chu Van Nguyen,
| | - Tu Anh Do
- aNational Cancer Hospital, Hanoi, Vietnam
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Le DT, Do KH, Do TA, Bui HTT, Nguyen CV. Combined Large-Cell Neuroendocrine and Squamous Cell Carcinoma of the Uterine Cervix with a Personal History of the Primary Breast Duct Carcinoma in situ: A Clinicopathological Characteristic and Outcome. Case Rep Oncol 2022; 15:770-775. [PMID: 36157693 PMCID: PMC9459569 DOI: 10.1159/000526337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 07/29/2022] [Indexed: 11/19/2022] Open
Abstract
Squamous cell carcinoma admixed with large-cell neuroendocrine carcinoma of the uterine cervix is an extremely rare malignancy with a poor prognosis. We report a 50-year-old woman with mixed squamous cell carcinoma and large-cell neuroendocrine carcinoma of the uterine cervix with an individual history of early-stage breast cancer. She was diagnosed preoperatively with cervical cancer stage FIGO 1B2. However, during surgery, a lesion was found in Douglas's peritoneum. The histopathological result of surgical specimens was mixed squamous cell carcinoma and large-cell neuroendocrine carcinoma. Then, she received concurrent chemoradiotherapy. Currently, after 3 months of treatment, she has not developed recurrent lesions.
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Affiliation(s)
| | | | - Tu Anh Do
- National Cancer Hospital, Hanoi, Vietnam
| | | | - Chu Van Nguyen
- National Cancer Hospital, Hanoi, Vietnam
- Hanoi Medical University, Hanoi, Vietnam
- *Chu Van Nguyen,
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Choi HJ, Kim J, Do KH, Park SH, Moon Y. Enteropathogenic Escherichia coli-induced macrophage inhibitory cytokine 1 mediates cancer cell survival: an in vitro implication of infection-linked tumor dissemination. Oncogene 2013; 32:4960-9. [PMID: 23503457 DOI: 10.1038/onc.2012.508] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2012] [Revised: 08/16/2012] [Accepted: 09/18/2012] [Indexed: 01/22/2023]
Abstract
Mucosally adherent Escherichia coli is frequently observed in intestinal surface of patients with colorectal cancer, but rarely in healthy control. Particularly, enteropathogenic Escherichia coli (EPEC) is known to be closely associated with colorectal carcinogenesis in human. In this study, one consequence of EPEC infection in human intestinal cancer cells was induction of macrophage inhibitory cytokine 1 (MIC-1), which is a multifunctional cytokine with biological activities involved in cancer cell growth, differentiation and migration. The present investigation assessed the involvement of MIC-1 protein in EPEC infection-mediated cancer cell survival. The challenge with EPEC induced cancer cell detachment via cytoskeleton rearrangement, which was positively associated with induced MIC-1 expression. Moreover, MIC-1 also mediated RhoA GTPase-linked survival of the detached cancer cells. Blocking of MIC-1 or RhoA activity increased cellular apoptosis of the detached cancer cells. In terms of signaling pathway, MIC-1 triggered transforming growth factorβ-activated kinase 1 (TAK1), which enhanced expression of RhoA GTPase. We conclude that EPEC enhances MIC-1 gene expression in the human intestinal cancer cells, which can be associated with enhanced tumor cell resistance to anchorage-dependent tumor cell death via enhanced TAK1 and RhoA GTPase.
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Affiliation(s)
- H J Choi
- Laboratory of Mucosal Exposome and Biomodulation, Department of Microbiology and Immunology and Medical Research Institute, Pusan National University School of Medicine, Yangsan, Kyungnam, Korea
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Ko SM, Seo JB, Hong MK, Do KH, Lee SH, Lee JS, Song JW, Park SJ, Park SW, Lim TH. Myocardial enhancement pattern in patients with acute myocardial infarction on two-phase contrast-enhanced ECG-gated multidetector-row computed tomography. Clin Radiol 2006; 61:417-22. [PMID: 16679115 DOI: 10.1016/j.crad.2005.11.011] [Citation(s) in RCA: 26] [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] [Received: 04/06/2005] [Revised: 11/13/2005] [Accepted: 11/17/2005] [Indexed: 11/29/2022]
Abstract
AIM To evaluate the myocardial enhancement pattern of the left ventricle on two-phase contrast-enhanced electrocardiogram (ECG)-gated multidetector computed tomography (MDCT) images in patients with acute myocardial infarction (AMI). METHODS Two-phase contrast-enhanced ECG-gated MDCT examinations were performed in 16 patients with AMI. The presence, location and pattern of myocardial enhancement were evaluated. MDCT findings were compared with the catheter angiographic results. RESULTS Subendocardial (n = 9) or transmural (n = 6) area of early perfusion defects of the myocardium was detected in 15 of 16 patients (94%) on early-phase CT images. Variable delayed myocardial enhancement patterns on late-phase CT images were observed in 12 patients (75%): (1) subendocardial residual perfusion defect and subepicardial late enhancement (n = 6); (2) transmural late enhancement (n = 1); (3) isolated subendocardial late enhancement (n=1); and (4) isolated subendocardial residual perfusion defect (n = 2). On catheter angiography, 14 of 15 corresponding coronary arteries showed significant stenosis. CONCLUSION Variable abnormal myocardial enhancement pattern was seen on two-phase, contrast-enhanced ECG-gated MDCT in patients with AMI. Assessment of myocardial attenuation on CT angiography gives additional information of the location and extent of infarction.
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Affiliation(s)
- S M Ko
- Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
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Sohn JH, Song JW, Seo JB, Do KH, Lee JS, Kim DK, Song KS, Lim TH. Case report: pericardial rupture and cardiac herniation after blunt trauma: a case diagnosed using cardiac MRI. Br J Radiol 2005; 78:447-9. [PMID: 15845942 DOI: 10.1259/bjr/31146905] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [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: 11/05/2022] Open
Abstract
Pericardial rupture following blunt chest trauma is rare, and is not usually diagnosed pre-operatively. If pericardial rupture is not recognized and treated promptly, it may be fatal owing to cardiac herniation. We report a case of traumatic herniation of the heart for which a CT scan and MRI made a major contribution to the diagnosis.
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Affiliation(s)
- J H Sohn
- Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Songpa-gu, Seoul, Korea
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Abstract
Systemic arterial supply to the lungs can be congenital or due to acquired disease. Congenital diseases encompass bronchopulmonary sequestration and congenital pulmonary venolobar syndrome, in which the involved lung parenchyma is supplied by the aberrant systemic arteries. An anomalous systemic artery can also supply an area of otherwise normal lung parenchyma. In acquired diseases, hypertrophied normal systemic arteries supply the lungs. Hypertrophied systemic arteries include the bronchial arteries, intercostal arteries, internal mammary arteries, inferior phrenic arteries, branches of the thyrocervical trunk, branches of the hepatic arteries, and branches of the abdominal aorta. Hypertrophy of normal systemic arteries is encountered in patients with bronchiectasis, pulmonary tuberculosis, other pulmonary infections, pulmonary thromboembolism, or chronic obstructive pulmonary disease. These systemic arteries are considered to supply the lungs by means of anastomoses between bronchial and pulmonary arteries within the lung parenchyma or transpleural systemic-pulmonary artery anastomoses. In most cases, the correct diagnosis and treatment plan can be determined by identification of the systemic arteries on computed tomographic scans.
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Affiliation(s)
- K H Do
- Departments of Radiology, Seoul National University Hospital and Seoul National University College of Medicine and Clinical Research Institute, 28 Yongon-dong, Chongno-gu, Seoul 110-744, South Korea
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Abstract
PURPOSE To describe findings of pulmonary tuberculoma at 2-[fluorine 18]fluoro-2-deoxy-D-glucose (FDG) positron emission tomography (PET). MATERIALS AND METHODS Ten consecutive patients who underwent PET and subsequently were proved to have pulmonary tuberculoma were analyzed. Tuberculosis was proved histopathologically in eight by means of wedge resection or lobectomy (n = 7) or needle biopsy (n = 1) and in two by means of clinical follow-up for more than 2 years. PET scans were evaluated by using peak standardized uptake values. Computed tomographic (CT) and histopathologic findings also were reviewed. RESULTS Nine of 10 tuberculomas showed FDG uptake at PET, and the mean peak standardized uptake value was 4.2 +/- 2.2 (SD). FDG uptake (range, 1. 9-3.7) in lesions adjacent to main abnormalities was demonstrated in four patients. On CT scans, the mean of the longest nodule diameters was 21 mm +/- 8, and there were some areas of branching linear opacities or satellite nodules that suggested pulmonary tuberculosis in seven patients. Histopathologic findings were chronic granulomatous inflammation with caseation necrosis (n = 7) and healed tuberculosis with aspergilloma (n = 1). CONCLUSION Pulmonary tuberculoma commonly causes an increase in FDG uptake. These results suggest that in geographic regions with a high prevalence of granulomatous lesions, positive FDG PET results should be interpreted with caution in differentiating benign from malignant pulmonary abnormalities.
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Affiliation(s)
- J M Goo
- Department of Radiology and Institute of Radiation Medicine, Seoul National University Hospital, 28, Yongon-Dong, Chongno-Gu, Seoul, 110-744, South Korea
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Kim HC, Han JK, Kim TK, Do KH, Kim HB, Park JH, Choi BI. Duodenal perforation as a delayed complication of placement of an esophageal stent. J Vasc Interv Radiol 2000; 11:902-4. [PMID: 10928530 DOI: 10.1016/s1051-0443(07)61809-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Affiliation(s)
- H C Kim
- Department of Radiology and the Institute of Radiation Medicine, Seoul National University College of Medicine, Korea
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