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Mathoma A, Sartorius B, Mahomed S. Evaluation of cancer screening services provided for people living with HIV in Botswana, 2022-2023. Health Promot Int 2024; 39:daae042. [PMID: 38742893 DOI: 10.1093/heapro/daae042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024] Open
Abstract
People living with human immunodeficiency virus (PLHIV) have an increased risk of cancers. Currently, Botswana has no screening guidelines for common cancers in PLHIV except cervical cancer. Also, the proportion of PLHIV who are screened for cancer is unknown. This study aimed to evaluate cancer screening services for PLHIV receiving care in the human immunodeficiency virus (HIV) clinics. Resources for cancer screening were assessed and medical records of adults initiating antiretroviral therapy (ART) from 2020 to 2021 in 20 high-volume HIV clinics in Gaborone and Francistown were reviewed. Questionnaires assessing knowledge and practices of cancer screening were administered to health workers. The majority of clinics had the required resources for cancer screening (specifically cervical cancer). Of the 62 health workers working at the HIV clinics, 57 (91.9%) completed the questionnaire: 35 (62.5%) nurses and 22 (37.5%) doctors. Only 26.3% of the health workers were trained in cervical cancer screening. Doctors were more likely to report practicing routine screening of other cancers (e.g. breast) (p = 0.003) while more nurses reported assessing patients for cancer history during follow-up visits (p = 0.036). Most health workers did not perform physical examinations to detect cancer at initial or follow-up visits. Of the 1000 records of PLHIV reviewed, 57.3% were females, and only 38% of these were screened for cervical cancer. Besides cervical cancer, almost all (97.8%) were not screened for any cancer at ART initiation and during follow-up. These findings highlight the need to improve cancer screening services of PLHIV in Botswana through the training of health workers, and the development and enhanced use of screening guidelines.
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Affiliation(s)
- Anikie Mathoma
- Division of Research and Innovation, University of Botswana, Corner of Notwane and Mabuto Road, Plot 4775, Gaborone, Botswana
- Discipline of Public Health Medicine, School of Nursing and Public Health, College of Health Sciences, University of KwaZulu-Natal, 236 George Campbell Building, King George V Avenue, Durban 4001, South Africa
| | - Benn Sartorius
- Discipline of Public Health Medicine, School of Nursing and Public Health, College of Health Sciences, University of KwaZulu-Natal, 236 George Campbell Building, King George V Avenue, Durban 4001, South Africa
- Faculty of Medicine, UQ Centre for Clinical Research (UQCCR), University of Queensland, Brisbane, St Lucia QLD 4072, Australia
- Centre for Tropical Medicine and Global Health, University of Oxford, New Richards Building, Roosevelt Dr, Headington, Oxford OX3 7LG, UK
- Department of Health Metric Sciences, University of Washington, 3980 15th Ave NE, Seattle, WA 98195, USA
| | - Saajida Mahomed
- Discipline of Public Health Medicine, School of Nursing and Public Health, College of Health Sciences, University of KwaZulu-Natal, 236 George Campbell Building, King George V Avenue, Durban 4001, South Africa
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Malkani N, Rashid MU. Systemic Diseases and Gastrointestinal Cancer Risk. JOURNAL OF CANCER & ALLIED SPECIALTIES 2023; 9:473. [PMID: 37575213 PMCID: PMC10405983 DOI: 10.37029/jcas.v9i2.473] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 06/15/2023] [Indexed: 08/15/2023]
Abstract
Importance Gastrointestinal (GI) cancers are the second leading cause of cancer-related deaths worldwide. Observations The global challenges GI cancers pose are high, especially in middle- and low-income countries. Patients with these cancers present with symptoms of poor appetite, weight loss, heartburn, abdominal pain, fatigue and anaemia. Several risk factors contribute to GI cancers, including age, gender, obesity, pathogenic infections, smoking cigarettes, alcohol consumption and dietary habits. Most of these cancers are sporadic. However, some patients are at high risk due to a family history of GI cancers. Systemic diseases affect multiple organs, and their chronic occurrence elicits inflammatory responses at various sites. These diseases also contribute to GI cancers. Conclusion and Relevance In this review, we discuss that untreated systemic diseases, including diabetes, hepatitis, acquired immune deficiency syndrome, ulcers and hypertension, can potentially lead to GI cancers if they remain untreated for a longer period. Systemic diseases initiate oxidative stress, inflammatory pathways and genetic manipulations, which altogether confer risks to GI cancers. Here, we describe the association between systemic diseases and their underlying mechanisms leading to GI cancers.
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Affiliation(s)
- Naila Malkani
- Department of Zoology, Government College University, Lahore, Punjab, Pakistan
| | - Muhammad Usman Rashid
- Department of Basic Sciences Research, Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Punjab, Pakistan
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Kojima S, Asano T, Ishii T, Fukuchi T, Mashima H. Gastric Extramural Tumor Caused by Mycobacteria Infection With Immunoreconstitution Inflammatory Syndrome. Cureus 2022; 14:e29428. [PMID: 36299982 PMCID: PMC9586920 DOI: 10.7759/cureus.29428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2022] [Indexed: 11/17/2022] Open
Abstract
Immunoreconstitution inflammatory syndrome (IRIS) was reported to occur in 7-13% of AIDS patients on anti-retroviral therapy (ART). IRIS due to Mycobacterium infection is one of the most difficult IRIS types to manage. A male patient in his early 70s was diagnosed with AIDS and treated with an ART. One year after starting ART, abdominal ultrasound was performed for screening and a 4 cm hypoechoic mass was found from the outside of the stomach to the surface of the hepatic lateral segment. Based on various imaging tests, including contrast CT, a malignant tumor, such as malignant lymphoma, was suspected. Then, a percutaneous tumor biopsy was performed. Pathologically, the tumor was recognized as mycobacterial granulomas. Disseminated mycobacterium avium complex can produce granulomas anywhere in the body. The patient was diagnosed with a mycobacterial infection associated with IRIS. When an intra-abdominal mass is found in a patient with HIV, both malignancy and mass formation due to opportunistic infections should be considered differential diseases.
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Geng H, Xing Y, Zhang J, Cao K, Ye M, Wang G, Liu C. Association between viral infection other than human papillomavirus and risk of esophageal carcinoma: a comprehensive meta-analysis of epidemiological studies. Arch Virol 2022; 167:1-20. [PMID: 34636955 DOI: 10.1007/s00705-021-05268-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 08/27/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND Infection with viruses such as human papillomavirus (HPV) is known to induce carcinomas, including esophageal carcinoma (EC). However, the possible role of viruses other than HPV in EC carcinogenesis is unclear in many studies. Here, we aimed to explore the association between infection with viruses other than HPV and EC risk by integrating existing studies of epidemiology in a meta-analysis. METHODS The PubMed, Web of Science, Cochrane Library and China National Knowledge Infrastructure databases were searched. The Newcastle-Ottawa scale was used to assess the quality of the included studies. Odds ratios (ORs) or relative risks (RRs) (with 95% confidence intervals [CIs]) were pooled to estimate the association between virus infection and risk of EC. RESULTS We included 31 eligible studies involving nine different viruses. Overall, an increased risk of EC was associated with hepatitis B virus (HBV) infection (OR = 1.19, 95%CI 1.01-1.36) and hepatitis C virus (HCV) infection (OR = 1.77, 95%CI 1.17-2.36), but not human immunodeficiency virus (HIV) infection, according to the current evidence. The evidence for an association with Epstein-Barr virus (EBV), herpes simplex virus 1 (HSV-1), JC virus (JCV), cytomegalovirus (CMV), human T-lymphotropic virus 1 (HTLV-1) or Merkel cell polyomavirus (MCPyV) infection was insufficient. CONCLUSIONS We confirmed the relationship between HBV and HCV infection and the risk of EC, but we found no association of EC risk with HIV and EBV infection. The roles of HSV-1, JCV, CMV, HTLV-1, and MCPyV were not clear because of the limited number of studies.
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Affiliation(s)
- Hui Geng
- Department of Preventive Medicine, Shantou University Medical College, No. 22, Xinling Rd., Shantou, 515041, Guangdong, China
| | - Yaqi Xing
- Department of Pharmacology, Shantou University Medical College, Shantou, Guangdong, China
| | - Jingbing Zhang
- Department of Preventive Medicine, Shantou University Medical College, No. 22, Xinling Rd., Shantou, 515041, Guangdong, China
| | - Kexin Cao
- Department of Preventive Medicine, Shantou University Medical College, No. 22, Xinling Rd., Shantou, 515041, Guangdong, China
| | - Meijie Ye
- Department of Preventive Medicine, Shantou University Medical College, No. 22, Xinling Rd., Shantou, 515041, Guangdong, China
| | - Geng Wang
- Department of Thoracic Surgery, Cancer Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - Caixia Liu
- Department of Preventive Medicine, Shantou University Medical College, No. 22, Xinling Rd., Shantou, 515041, Guangdong, China
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Thakkar C, Joshipira V. Case report on thoracoscopic esophagectomy for long segment resistant oesophageal stricture in HIV infected patient. Int J Surg Case Rep 2021; 80:105634. [PMID: 33752292 PMCID: PMC7940794 DOI: 10.1016/j.ijscr.2021.02.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/04/2021] [Accepted: 02/05/2021] [Indexed: 11/16/2022] Open
Abstract
INTRODUCTION The incidence of Esophageal strictures following esophagitis in human immunodeficiency virus (HIV)-infected patients is profound in majority of cases. Although endoscopic dilatation remains the first line of treatment, surgery is needed for non-dilatable strictures. Sparse literature is available on clinical management for surgical intervention. PRESNTATION OF THE CASE A 30 years old HIV positive male, taking ART for 10 years, presented with grade V dysphagia over long standing non-specific ulcerative esophagitis. Upper GI endoscopy revealed a long stricture starting 18 cm from the incisors. The patient underwent multiple endoscopic dilatation along with twice endoscopic stent placements over period of 2 years. As CD4 count was low associated with poor nutritional status a feeding jejunostomy was constructed. With improvement in CD4 count and nutritional status within 3 months; thoracoscopic esophagectomy, laparotomy and formation of gastric conduit and cervical anastomosis was performed. There were no intraoperative or postoperative adverse events with complete improvement in dysphagia. During follow up, 24 months after surgery the patient was on full oral diet with a total weight gain of 15 kg. DISCUSSION Long term solution to dysphagia due to long esophageal stricture merits a surgery in form of a replacement conduit by either stomach tube or a segment of colon. Experience and literature guiding surgical decision making are limited. Retaining or excision of the native oesophagus is still a matter of discussion. CONCLUSION Thoracoscopic esophagectomy with gastric tube conduit for reconstruction is a feasible and safe surgical option for esophageal stricture in a HIV infected patient.
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Affiliation(s)
- Chirag Thakkar
- ADROIT Centre for Digestive and Obesity Surgery, Ahmedabad, Gujarat, India.
| | - Vismit Joshipira
- ADROIT Centre for Digestive and Obesity Surgery, Ahmedabad, Gujarat, India
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Tahtabasi M, Mohamud Abdullahi I, Kalayci M, Gedi Ibrahim I, Er S. Cancer Incidence and Distribution at a Tertiary Care Hospital in Somalia from 2017 to 2020: An Initial Report of 1306 Cases. Cancer Manag Res 2020; 12:8599-8611. [PMID: 33061565 PMCID: PMC7534047 DOI: 10.2147/cmar.s277202] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 09/02/2020] [Indexed: 12/12/2022] Open
Abstract
Purpose To determine the type, frequency and distribution of all cancers in Somalia from 2017 to 2020. Patients and Methods This retrospective and descriptive study included the review of a total of 5238 pathology reports obtained from the medical records of the Somalia Turkey Recep Tayyip Erdogan Education and Research Hospital. Patient characteristics, lesion localization, and histopathology were recorded. Patients with an unconfirmed cancer diagnosis, borderline tumors, intraepithelial neoplasms and metastatic cancers were excluded from the study. The cases were classified according to gender, age, and organ involvement. Results Of the 1306 patients included in the study, 50.9% (n=666) were female and 49.1% (n=640) were male, and the mean age was 51.1±19.4 years. Of the cases, 5.1% (n=67) were pediatric (0–17 years) and 35.8% (n=468) were in the 18–50 years range. The most common cancer was esophageal cancer (EC) for the overall data (n=284; 21.7%) and in both genders. EC peaked in the fifth decade, and the most common histological type was squamous cell carcinoma (n=256; 91.1%). Liver cancer was the second most common cancer overall (n=99; 7.6%) and in men (n=67; 10.5%). Cervical cancer was the second most common cancer among women (n=88; 13.3%) and ranked fourth in terms of overall incidence (n=88; 6.7%). Breast cancer was the third most common overall (n=95; 7.3%) and in women (n= 87; 13.1%). Conclusion This study shows that in Somalia, EC is the most common cancer in both genders. These high rates in Somalia suggest that environmental factors and dietary habits may have an effect. To reduce the incidence of EC and prevent its development, the population of Somalia should be educated and effective planning should be undertaken.
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Affiliation(s)
- Mehmet Tahtabasi
- Department of Radiology, University of Health Sciences- Somalia Turkey Recep Tayyip Erdogan Education and Research Hospital, Mogadishu, Somalia
| | - Ismail Mohamud Abdullahi
- Department of Pathology, University of Health Sciences- Somalia Turkey Recep Tayyip Erdogan Education and Research Hospital, Mogadishu, Somalia
| | - Mustafa Kalayci
- Department of Ophthalmology, University of Health Sciences- Somalia Turkey Recep Tayyip Erdogan Education and Research Hospital, Mogadishu, Somalia
| | - Ismail Gedi Ibrahim
- Department of Radiology, University of Health Sciences- Somalia Turkey Recep Tayyip Erdogan Education and Research Hospital, Mogadishu, Somalia
| | - Sadettin Er
- Department of General Surgery, University of Health Sciences- Somalia Turkey Recep Tayyip Erdogan Education and Research Hospital, Mogadishu, Somalia
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Niedźwiedzka-Rystwej P, Grywalska E, Hrynkiewicz R, Wołącewicz M, Becht R, Roliński J. The Double-Edged Sword Role of Viruses in Gastric Cancer. Cancers (Basel) 2020; 12:cancers12061680. [PMID: 32599870 PMCID: PMC7352989 DOI: 10.3390/cancers12061680] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 06/14/2020] [Accepted: 06/23/2020] [Indexed: 02/06/2023] Open
Abstract
Due to its high morbidity and mortality, gastric cancer is a topic of a great concern throughout the world. Major ways of treatment are gastrectomy and chemotherapy, unfortunately they are not always successful. In a search for more efficient therapy strategies, viruses and their potential seem to be an important issue. On one hand, several oncogenic viruses have been noticed in the case of gastric cancer, making the positive treatment even more advantageous, but on the other, viruses exist with a potential therapeutic role in this malignancy.
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Affiliation(s)
- Paulina Niedźwiedzka-Rystwej
- Institute of Biology, University of Szczecin, Felczaka 3c, 71-412 Szczecin, Poland; (R.H.); (M.W.)
- Correspondence:
| | - Ewelina Grywalska
- Department of Clinical Immunology and Immunotherapy, Medical University of Lublin, 20-093 Lublin, Poland; (E.G.); (J.R.)
| | - Rafał Hrynkiewicz
- Institute of Biology, University of Szczecin, Felczaka 3c, 71-412 Szczecin, Poland; (R.H.); (M.W.)
| | - Mikołaj Wołącewicz
- Institute of Biology, University of Szczecin, Felczaka 3c, 71-412 Szczecin, Poland; (R.H.); (M.W.)
| | - Rafał Becht
- Clinical Department of Oncology, Chemotherapy and Cancer Immunotherapy, Pomeranian Medical University of Szczecin, 70-204 Szczecin, Poland;
| | - Jacek Roliński
- Department of Clinical Immunology and Immunotherapy, Medical University of Lublin, 20-093 Lublin, Poland; (E.G.); (J.R.)
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Nagata N, Nishijima T, Niikura R, Yokoyama T, Matsushita Y, Watanabe K, Teruya K, Kikuchi Y, Akiyama J, Yanase M, Uemura N, Oka S, Gatanaga H. Increased risk of non-AIDS-defining cancers in Asian HIV-infected patients: a long-term cohort study. BMC Cancer 2018; 18:1066. [PMID: 30400779 PMCID: PMC6219071 DOI: 10.1186/s12885-018-4963-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 10/16/2018] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Data on the long-term risks of non-AIDS defining cancers (NADCs) are limited, especially in Asians. The incidence of NADCs may correlate with the epidemiological trend of cancers or oncogenic infection in each country, and thus the target cancers would be different between Western and Asian countries. We aimed to elucidate the incidence of NADCs and its predictive factors in Asian HIV-infected patients. METHODS Subjects were HIV-infected patients (n = 1001) periodically followed-up for 9 years on average. NADCs were diagnosed by histopathology and/ or imaging findings. Standardized incidence ratios (SIR) were calculated as the ratio of the observed to expected number of NADCs for comparison with an age-and sex-matched general population. Cox's proportional hazards model was used to estimate hazard ratios (HR). RESULTS During the median follow-up of 9 years, the 10-year cumulative incidence of NADCs was 6.4%.At NADC diagnosis, half of patients presented at age 40-59 years and with advanced tumor stage. Compared with the age-and sex-matched general population, HIV-infected patients are at increased risk for liver cancer (SIR, 4.7), colon cancer (SIR, 2.1), and stomach cancer (SIR, 1.8). In multivariate analysis, a predictive model for NADCs was developed that included age group (40-49, 50-59, 60-69, and ≥ 70 years), smoker, HIV infection through blood transmission, and injection drug use (IDU), and HBV co-infection. The c-statistic for the NADCs predictive model was 0.8 (95%CI, 0.8-0.9, P < 0.001). The higher 10-year incidence rate of NADCs was associated with increasing prediction score. CONCLUSIONS Liver and colon cancer risk was elevated in Asian HIV-infected individuals, similar to in Western populations, whereas stomach cancer risk was characteristically elevated in Asian populations. Half of Asian NADC patients were aged 40-59 years and had advanced-stage disease at diagnosis. Periodic cancer screening may be warranted for high-risk subpopulations with smoking habit, HIV infection through blood transmission or IDU, and HBV co-infection, and screening should be started over 40 years of age.
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Affiliation(s)
- Naoyoshi Nagata
- Departments of Gastroenterology and Hepatology, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655 Japan
| | - Takeshi Nishijima
- AIDS Clinical Center, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655 Japan
| | - Ryota Niikura
- Department of Gastroenterology, Graduate School of Medicine, the University of Tokyo, Bunkyo-ku, Tokyo 113-8655 Japan
| | - Tetsuji Yokoyama
- Department Director, Department of Health Promotion, National Institute of Public Health, 2-3-6 Minami, Wako, Saitama, 351-0197 Japan
| | - Yumi Matsushita
- Department of Clinical Research, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655 Japan
| | - Koji Watanabe
- AIDS Clinical Center, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655 Japan
| | - Katsuji Teruya
- AIDS Clinical Center, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655 Japan
| | - Yoshimi Kikuchi
- AIDS Clinical Center, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655 Japan
| | - Junichi Akiyama
- Departments of Gastroenterology and Hepatology, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655 Japan
| | - Mikio Yanase
- Departments of Gastroenterology and Hepatology, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655 Japan
| | - Naomi Uemura
- Department of Gastroenterology and Hepatology, Kohnodai Hospital, National Center for Global Health and Medicine, 1-7-1, Kohnodai, Ichikawa, Chiba, 272-8516 Japan
| | - Shinichi Oka
- AIDS Clinical Center, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655 Japan
| | - Hiroyuki Gatanaga
- AIDS Clinical Center, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655 Japan
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Zamoiski RD, Yanik E, Gibson TM, Cahoon EK, Madeleine MM, Lynch CF, Gustafson S, Goodman MT, Skeans M, Israni AK, Engels EA, Morton LM. Risk of Second Malignancies in Solid Organ Transplant Recipients Who Develop Keratinocyte Cancers. Cancer Res 2017; 77:4196-4203. [PMID: 28615224 PMCID: PMC5540772 DOI: 10.1158/0008-5472.can-16-3291] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Revised: 03/06/2017] [Accepted: 06/05/2017] [Indexed: 01/07/2023]
Abstract
Solid organ transplant recipients have increased risk for developing keratinocyte cancers, including cutaneous squamous cell carcinoma (SCC) and basal cell carcinoma (BCC), in part as a result of immunosuppressive medications administered to prevent graft rejection. In the general population, keratinocyte cancers are associated with increased risks of subsequent malignancy, however, the risk in organ transplant populations has not been evaluated. We addressed this question by linking the U.S. Scientific Registry of Transplant Recipients, which includes data on keratinocyte cancer occurrence, with 15 state cancer registries. Risk of developing malignancies after keratinocyte cancer was assessed among 118,440 Caucasian solid organ transplant recipients using multivariate Cox regression models. Cutaneous SCC occurrence (n = 6,169) was associated with 1.44-fold increased risk [95% confidence interval (CI), 1.31-1.59] for developing later malignancies. Risks were particularly elevated for non-cutaneous SCC, including those of the oral cavity/pharynx (HR, 5.60; 95% CI, 4.18-7.50) and lung (HR, 1.66; 95% CI, 1.16-2.31). Cutaneous SCC was also associated with increased risk of human papillomavirus-related cancers, including anal cancer (HR, 2.77; 95% CI, 1.29-5.96) and female genital cancers (HR, 3.43; 95% CI, 1.44-8.19). In contrast, BCC (n = 3,669) was not associated with overall risk of later malignancy (HR, 0.98; 95% CI, 0.87-1.12), including any SCC. Our results suggest that transplant recipients with cutaneous SCC, but not BCC, have an increased risk of developing other SCC. These findings somewhat differ from those for the general population and suggest a shared etiology for cutaneous SCC and other SCC in the setting of immunosuppression. Cutaneous SCC occurrence after transplantation could serve as a marker for elevated malignancy risk. Cancer Res; 77(15); 4196-203. ©2017 AACR.
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Affiliation(s)
- Rachel D Zamoiski
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Bethesda, Maryland
| | - Elizabeth Yanik
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Bethesda, Maryland
| | - Todd M Gibson
- Department of Epidemiology and Cancer Control, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Elizabeth K Cahoon
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Bethesda, Maryland
| | - Margaret M Madeleine
- Public Health Science, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Charles F Lynch
- Department of Epidemiology, University of Iowa, Iowa City, Iowa
| | - Sally Gustafson
- Scientific Registry of Transplant Recipients, Minneapolis, Minnesota
| | - Marc T Goodman
- Cancer Prevention and Control Program, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Melissa Skeans
- Scientific Registry of Transplant Recipients, Minneapolis, Minnesota
| | - Ajay K Israni
- Department of Epidemiology and Community Health, University of Minnesota, Minneapolis, Minnesota
| | - Eric A Engels
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Bethesda, Maryland
| | - Lindsay M Morton
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Bethesda, Maryland.
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Mwachiro M, Mitchell E, Topazian HM, White R. Esophagectomy in Patients with Human Immunodeficiency Virus and Acquired Immune Deficiency Syndrome: A Viable Option. Semin Thorac Cardiovasc Surg 2017; 30:116-121. [PMID: 29747950 DOI: 10.1053/j.semtcvs.2017.05.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/24/2017] [Indexed: 01/05/2023]
Abstract
The objective of this study was to assess the outcomes for patients with human immunodeficiency virus (HIV) and acquired immune deficiency virus (AIDS) who had esophagectomy done for both benign and malignant conditions. A retrospective chart review of patients with HIV and AIDS undergoing esophagectomy at a rural referral hospital was done for the period of 2009-2014. Patient postoperative complications, outcomes, and follow-up data were charted. All procedures were done by a single lead surgeon. Nine patients met the study criteria, 7 of whom had esophageal cancer, and 2 with strictures. Four patients had received nutritional self-expanding metal stent preoperatively. The mean stent duration was 61 days. Three patients had been on antiretroviral therapy before surgery. Preoperative CD4 counts were available in 7 patients. Eight patients underwent a 3-field esophagectomy and 1 was unresectable. Seven of these patients had successful outcomes, with varying follow-up times. One patient died post procedure while in the hospital. Complications included stricture and anastomotic leak. Although HIV-positive patients face increased risk during surgical procedures, this status should not be a firm contraindication to surgery. Quality nutritional status, antiretroviral use, and overall CD4 count levels remain important parameters in considering surgical treatment for these patients. With careful patient evaluation and planning, esophagectomy in an HIV and AIDS setting is feasible with successful outcomes.
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Affiliation(s)
| | - Eric Mitchell
- Department of General Surgery, Tenwek Hospital, Bomet, Kenya
| | | | - Russell White
- Department of General Surgery, Tenwek Hospital, Bomet, Kenya
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11
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Vogelaar IP, Ligtenberg MJL, van der Post RS, de Voer RM, Kets CM, Jansen TJG, Jacobs L, Schreibelt G, de Vries IJM, Netea MG, Hoogerbrugge N. Recurrent candidiasis and early-onset gastric cancer in a patient with a genetically defined partial MYD88 defect. Fam Cancer 2016; 15:289-96. [PMID: 26700889 PMCID: PMC4803817 DOI: 10.1007/s10689-015-9859-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Gastric cancer is caused by both genetic and environmental factors. A woman who suffered from recurrent candidiasis throughout her life developed diffuse-type gastric cancer at the age of 23 years. Using whole-exome sequencing we identified a germline homozygous missense variant in MYD88. Immunological assays on peripheral blood mononuclear cells revealed an impaired immune response upon stimulation with Candida albicans, characterized by a defective production of the cytokine interleukin-17. Our data suggest that a genetic defect in MYD88 results in an impaired immune response and may increase gastric cancer risk.
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Affiliation(s)
- Ingrid P Vogelaar
- Department of Human Genetics, Radboud university medical center, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Marjolijn J L Ligtenberg
- Department of Human Genetics, Radboud university medical center, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands
- Department of Pathology, Radboud university medical center, Nijmegen, The Netherlands
| | - Rachel S van der Post
- Department of Pathology, Radboud university medical center, Nijmegen, The Netherlands
| | - Richarda M de Voer
- Department of Human Genetics, Radboud university medical center, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - C Marleen Kets
- Department of Human Genetics, Radboud university medical center, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Trees J G Jansen
- Department of Internal Medicine, Radboud university medical center, Nijmegen, The Netherlands
| | - Liesbeth Jacobs
- Department of Internal Medicine, Radboud university medical center, Nijmegen, The Netherlands
| | - Gerty Schreibelt
- Department of Tumor Immunology, Radboud university medical center, Nijmegen, The Netherlands
| | - I Jolanda M de Vries
- Department of Tumor Immunology, Radboud university medical center, Nijmegen, The Netherlands
- Department of Medical Oncology, Radboud university medical center, Nijmegen, The Netherlands
| | - Mihai G Netea
- Department of Internal Medicine, Radboud university medical center, Nijmegen, The Netherlands
| | - Nicoline Hoogerbrugge
- Department of Human Genetics, Radboud university medical center, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands.
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12
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Abstract
People living with human immunodeficiency virus (HIV) are living longer since the advent of effective combined antiretroviral therapy (cART). While cART substantially decreases the risk of developing some cancers, HIV-infected individuals remain at high risk for Kaposi sarcoma, lymphoma, and several solid tumors. Currently HIV-infected patients represent an aging group, and malignancies have become a leading cause of morbidity and mortality. Tailored cancer-prevention strategies are needed for this population. In this review we describe the etiologic agents and pathogenesis of common malignancies in the setting of HIV, as well as current evidence for cancer prevention strategies and screening programs.
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Affiliation(s)
- Priscila H Goncalves
- HIV & AIDS Malignancy Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jairo M Montezuma-Rusca
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Robert Yarchoan
- HIV & AIDS Malignancy Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Thomas S Uldrick
- HIV & AIDS Malignancy Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
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13
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Vetro C, Bonanno G, Giulietti G, Romano A, Conticello C, Chiarenza A, Spina P, Coppolino F, Cunsolo R, Raimondo FD. Rare gastrointestinal lymphomas: The endoscopic investigation. World J Gastrointest Endosc 2015; 7:928-949. [PMID: 26265987 PMCID: PMC4530327 DOI: 10.4253/wjge.v7.i10.928] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 06/01/2015] [Accepted: 07/09/2015] [Indexed: 02/05/2023] Open
Abstract
Gastrointestinal lymphomas represent up to 10% of gastrointestinal malignancies and about one third of non-Hodgkin lymphomas. The most prominent histologies are mucosa-associated lymphoid tissue lymphoma and diffuse large B-cell lymphoma. However, the gastrointestinal tract can be the site of rarer lymphoma subtypes as a primary or secondary localization. Due to their rarity and the multifaceted histology, an endoscopic classification has not been validated yet. This review aims to analyze the endoscopic presentation of rare gastrointestinal lymphomas from disease diagnosis to follow-up, according to the involved site and lymphoma subtype. Existing, new and emerging endoscopic technologies have been examined. In particular, we investigated the diagnostic, prognostic and follow-up endoscopic features of T-cell and natural killer lymphomas, lymphomatous polyposis and mantle cell lymphoma, follicular lymphoma, plasma cell related disease, gastrointestinal lymphomas in immunodeficiency and Hodgkin’s lymphoma of the gastrointestinal tract. Contrarily to more frequent gastrointestinal lymphomas, data about rare lymphomas are mostly extracted from case series and case reports. Due to the data paucity, a synergism between gastroenterologists and hematologists is required in order to better manage the disease. Indeed, clinical and prognostic features are different from nodal and extranodal or the bone marrow (in case of plasma cell disease) counterpart. Therefore, the approach should be based on the knowledge of the peculiar behavior and natural history of disease.
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14
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Cheng ML, Zhang L, Borok M, Chokunonga E, Dzamamala C, Korir A, Wabinga HR, Hiatt RA, Parkin DM, Van Loon K. The incidence of oesophageal cancer in Eastern Africa: identification of a new geographic hot spot? Cancer Epidemiol 2015; 39:143-9. [PMID: 25662402 PMCID: PMC4470609 DOI: 10.1016/j.canep.2015.01.001] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2014] [Revised: 01/06/2015] [Accepted: 01/08/2015] [Indexed: 12/15/2022]
Abstract
The incidence of oesophageal cancer (OC) varies geographically, with more than 80% of cases and deaths worldwide occurring in developing countries. The aim of this study is to characterize the disease burden of OC in four urban populations in Eastern Africa, which may represent a previously undescribed high-incidence area. Data on all cases of OC diagnosed between 2004 and 2008 were obtained from four population-based cancer registries in: Blantyre, Malawi; Harare, Zimbabwe; Kampala, Uganda; and Nairobi, Kenya. Age-standardized incidence rates (ASRs) were calculated for each population, and descriptive statistics for incident cases were determined. In Blantyre, 351 male (59%) and 239 (41%) female cases were reported, with ASRs of 47.2 and 30.3. In Harare, 213 male (61%) and 134 (39%) female cases were reported, with ASRs of 33.4 and 25.3, respectively. In Kampala, 196 male (59%) and 137 female (41%) cases were reported, with ASRs of 36.7 and 24.8. In Nairobi, 323 male (57%) and 239 female (43%) cases were reported, with ASRs of 22.6 and 21.6. Median age at diagnosis was significantly different among the four populations, ranging from 50 years in Blantyre to 65 years in Harare (p<0.0001). Except in Nairobi, incidence among males was significantly higher than among females (p<0.01). Squamous cell OC was the predominant histologic subtype at all sites. ASRs at all four sites were remarkably higher than the mean worldwide ASR. Investigation to evaluate potential etiologic effects of dietary, lifestyle, environmental, and other factors impacting the incidence in this region is needed.
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Affiliation(s)
- Michael L Cheng
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, United States
| | - Li Zhang
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, United States
| | | | | | | | - Anne Korir
- Nairobi Cancer Registry, Kenya Medical Research Institute, Nairobi, Kenya
| | - Henry R Wabinga
- Kampala Cancer Registry, Makerere University, Kampala, Uganda
| | - Robert A Hiatt
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, United States
| | | | - Katherine Van Loon
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, United States.
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15
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Kayamba V, Bateman AC, Asombang AW, Shibemba A, Zyambo K, Banda T, Soko R, Kelly P. HIV infection and domestic smoke exposure, but not human papillomavirus, are risk factors for esophageal squamous cell carcinoma in Zambia: a case-control study. Cancer Med 2015; 4:588-95. [PMID: 25641622 PMCID: PMC4402073 DOI: 10.1002/cam4.434] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Revised: 01/12/2015] [Accepted: 01/14/2015] [Indexed: 12/23/2022] Open
Abstract
There is emerging evidence that esophageal cancer occurs in younger adults in sub-Saharan Africa than in Europe or North America. The burden of human immunodeficiency virus (HIV) is also high in this region. We postulated that HIV and human papillomavirus (HPV) infections might contribute to esophageal squamous cell carcinoma (OSCC) risk. This was a case–control study based at the University Teaching Hospital in Lusaka, Zambia. Cases were patients with confirmed OSCC and controls had completely normal upper endoscopic evaluations. A total of 222 patients were included to analyze the influence of HIV infection; of these, 100 patients were used to analyze the influence of HPV infection, alcohol, smoking, and exposure to wood smoke. The presence of HIV infection was determined using antibody kits, and HPV infection was detected by polymerase chain reaction. HIV infection on its own conferred increased risk of developing OSCC (odds ratio [OR] 2.3; 95% confidence interval [CI] 1.0–5.1; P = 0.03). The OR was stronger when only people under 60 years were included (OR 4.3; 95% CI 1.5–13.2; P = 0.003). Cooking with charcoal or firewood, and cigarette smoking, both increased the odds of developing OSCC ([OR 3.5; 95% CI 1.4–9.3; P = 0.004] and [OR 9.1; 95% CI 3.0–30.4; P < 0.001], respectively). There was no significant difference in HPV detection or alcohol intake between cases and controls. We conclude that HIV infection and exposure to domestic and cigarette smoke are risk factors for OSCC, and HPV immunization unlikely to reduce OSCC incidence in Zambia.
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Affiliation(s)
- Violet Kayamba
- Department of Internal Medicine, University of Zambia, Lusaka, Zambia
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16
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Grulich AE, Vajdic CM. The epidemiology of cancers in human immunodeficiency virus infection and after organ transplantation. Semin Oncol 2014; 42:247-57. [PMID: 25843729 DOI: 10.1053/j.seminoncol.2014.12.029] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The authors provide an update on the association between immune deficiency and cancer risk in people with human immunodeficiency virus (HIV) and in solid organ transplant recipients. Over the past decade, it has become clear that a wider range of about 20 mostly infection-related cancers occur at increased rates in people with immune deficiency. The human herpes virus 8 (HHV8) and Epstein Barr Virus (EBV)-related cancers of Kaposi sarcoma (KS) and non-Hodgkin lymphoma (NHL) are most closely related to level of immune deficiency. Transplant recipients also have a greatly increased risk of squamous cell carcinoma (SCC) of the skin, related to direct carcinogenic effects of the pharmaceuticals used for immune suppression. For those three cancer types, the increased cancer risk is largely reversed when immune deficiency is decreased by treatment of HIV or by reduction of iatrogenic immune suppression. Other infection-related cancers also occur at increased rates, but it is not clear whether reduction of immune deficiency reduces cancer risk. Prostate and breast cancer do not occur at increased rates, providing strong evidence that these cancers are unlikely to be related to infection. Epidemiological and clinical trends in these two populations have led to substantial recent changes in cancer occurrence.
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Affiliation(s)
- Andrew E Grulich
- HIV Epidemiology and Prevention Program, The Kirby Institute, University of New South Wales, Sydney, Australia.
| | - Claire M Vajdic
- Adult Cancer Program, Prince of Wales Clinical School, University of New South Wales, Sydney, Australia
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17
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Falasca F, Maida P, Gaeta A, Verzaro S, Mezzaroma I, Fantauzzi A, Donato G, Bonci E, Castilletti C, Antonelli G, Turriziani O. Detection and quantification of EBV, HHV-6 and CMV DNA in the gastrointestinal tract of HIV-positive patients. Infection 2014; 42:1033-7. [PMID: 25326253 DOI: 10.1007/s15010-014-0690-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2014] [Accepted: 10/06/2014] [Indexed: 12/22/2022]
Abstract
Human herpes viruses (HHVs) have been frequently detected in the gastrointestinal (GI) tract and may contribute to the development of gastric cancer. In the present study, the detection rate and viral load of Epstein Barr virus (EBV), HHV-6 and Cytomegalovirus (CMV) were assessed in the GI tract of human immunodeficiency virus (HIV) positive patients and of uninfected patients. The analysis revealed a significantly higher detection rate of EBV and HHV-6 in HIV-infected individuals than in uninfected subjects (88.5 vs 63%; p = 0.03). Moreover, EBV DNA load was significantly higher in the stomach of HIV patients than in controls. These data suggest that the HIV infection status may increase the persistence of these viruses in the GI compartment. Intriguingly, CMV DNA was undetectable in all biopsy specimens analyzed.
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Affiliation(s)
- F Falasca
- Department of Molecular Medicine, Sapienza University, Viale dell'Università 31, 00185, Rome, Italy
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18
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Noncommunicable diseases in HIV infection in low- and middle-income countries: gastrointestinal, hepatic, and nutritional aspects. J Acquir Immune Defic Syndr 2014; 67 Suppl 1:S79-86. [PMID: 25117963 DOI: 10.1097/qai.0000000000000260] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The purpose of this review was to outline the interaction between HIV and noncommunicable diseases affecting the gastrointestinal (GI) tract, liver, and nutritional disorders in low- and middle-income countries (LMICs), and to identify research priorities. Noncommunicable GI tract disorders are only moderately influenced by HIV, and peptic ulceration is actually less common. However, the impact of HIV on GI cancers needs further investigation. HIV interacts strongly with environmental enteropathy, exacerbating malabsorption of nutrients and drugs. HIV has 2 major effects on noncommunicable liver disease: drug-induced liver injury and nonalcoholic fatty liver disease (particularly in persons of African genetic descent). The effect of HIV on nutrition was one of the first markers of the epidemic in the 1980s, and HIV continues to have major nutritional consequences. Childhood malnutrition and HIV frequently coexist in some regions, for example, southern Africa, resulting in powerful negative interactions with poorer responses to standard nutritional rehabilitation. HIV and nutritional care need to be better integrated, but many questions on how best to do this remain unanswered. Across the spectrum of GI, hepatic, and nutritional disorders in HIV infection, there is increasing evidence that the microbiome may play an important role in disease pathogenesis, but work in this area, especially in low- and middle-income countries, is in its infancy.
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19
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Abstract
Primary gastrointestinal (GI) lymphoma most often arises from stomach, small bowel, or colon. The 2 most common subtypes of primary GI lymphoma include low-grade mucosa-associated lymphoid tissue lymphoma, strongly associated with Helicobacter pylori infection, and high-grade diffuse, large B-cell lymphoma. Primary GI lymphoma demonstrates a myriad of imaging manifestations that can commonly mimic other pathologies. Timely and accurate diagnosis remains important because treatment and prognosis of primary GI lymphoma differ significantly from other GI malignancies and even lymphoma of other primary sites.
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Affiliation(s)
- Stephanie T Chang
- Department of Radiology, Stanford University School of Medicine, Stanford, CA; Barnes-Jewish Hospital, Washington University School of Medicine, St. Louis, MO
| | - Christine O Menias
- Department of Radiology, Mallinckrodt Institute of Radiology, St. Louis, MO; Barnes-Jewish Hospital, Washington University School of Medicine, St. Louis, MO.
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20
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Abstract
In the highly active antiretroviral therapy (HAART) era, the incidence of non-AIDS-defining cancers (NADC) has increased and contributes to a growing proportion of mortality in the aging HIV-infected population. The underlying pathogenic mechanisms of increased cancer risk are incompletely understood. Potential contributors include oncogenic effects of the HIV virus, immunosuppression, chronic inflammation and immune activation, exposure to HAART, higher rates of oncogenic viral coinfections and traditional cancer risk factors. HIV-infected patients often present with NADC at younger ages with more aggressive or advanced stage disease. However, when standard cancer therapy is given, treatment outcomes appear similar to the non-HIV population. These facts highlight the importance of clinicians' maintaining a high index of suspicion, performing age-appropriate screening, and optimizing cancer therapy. Development of novel strategies for screening, prevention, and treatment of NADC will be required to reverse these epidemiologic trends and improve the survival of HIV-infected patients.
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Affiliation(s)
- James Cutrell
- Division of Infectious Diseases, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390-9113, USA.
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21
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Dong SW, Li D, Xu C, Sun P, Wang YG, Zhang P. Alteration in gene expression profile and oncogenicity of esophageal squamous cell carcinoma by RIZ1 upregulation. World J Gastroenterol 2013; 19:6170-6177. [PMID: 24115813 PMCID: PMC3787346 DOI: 10.3748/wjg.v19.i37.6170] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Revised: 07/23/2013] [Accepted: 08/06/2013] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the effect of retinoblastoma protein-interacting zinc finger gene 1 (RIZ1) upregulation in gene expression profile and oncogenicity of human esophageal squamous cell carcinoma (ESCC) cell line TE13.
METHODS: TE13 cells were transfected with pcDNA3.1(+)/RIZ1 and pcDNA3.1(+). Changes in gene expression profile were screened and the microarray results were confirmed by reverse transcription-polymerase chain reaction (RT-PCR). Nude mice were inoculated with TE13 cells to establish ESCC xenografts. After two weeks, the inoculated mice were randomly divided into three groups. Tumors were injected with normal saline, transfection reagent pcDNA3.1(+) and transfection reagent pcDNA3.1(+)/RIZ1, respectively. Tumor development was quantified, and changes in gene expression of RIZ1 transfected tumors were detected by RT-PCR and Western blotting.
RESULTS: DNA microarray data showed that RIZ1 transfection induced widespread changes in gene expression profile of cell line TE13, with 960 genes upregulated and 1163 downregulated. Treatment of tumor xenografts with RIZ1 recombinant plasmid significantly inhibited tumor growth, decreased tumor size, and increased expression of RIZ1 mRNA compared to control groups. The changes in gene expression profile were also observed in vivo after RIZ1 transfection. Most of the differentially expressed genes were associated with cell development, supervision of viral replication, lymphocyte costimulatory and immune system development in esophageal cells. RIZ1 gene may be involved in multiple cancer pathways, such as cytokine receptor interaction and transforming growth factor beta signaling.
CONCLUSION: The development and progression of esophageal cancer are related to the inactivation of RIZ1. Virus infection may also be an important factor.
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22
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Abstract
A multifactorial and multistep model of gastric cancer (GC) is currently accepted, according to which different environmental and genetic factors are involved at different stages in the cancer process. The aim of this article is to review the most relevant information published on the relative contribution of genetic and environmental factors. Large meta-analyses confirmed the association between IL8, IL10, TNF-b, TP53 and PSCA, while genetic variation at different genes such as XPG, PLCE1, HFE, ERCC5, EZH2, DOC2, CYP19A1, ALDH2, and CDH1 have been reported to be associated with GC risk. Several microRNAs have also been associated with GC and their prognosis. Cohort studies have shown the association between GC and fruit, flavonoid, total antioxidant capacity, and green tea intake. Obesity was associated with cardia GC, heme iron intake from meat with GC risk. Several large meta-analyses have confirmed the positive association of GC with salt intake and pickled foods and the negative association with aspirin use.
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Affiliation(s)
- Carlos A González
- Unit of Nutrition, Environment and Cancer, Catalan Institute of Oncology- Idibell, Barcelona, Spain
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23
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Abstract
Answer questions and earn CME/CNE Esophageal adenocarcinoma (EAC) is characterized by 6 striking features: increasing incidence, male predominance, lack of preventive measures, opportunities for early detection, demanding surgical therapy and care, and poor prognosis. Reasons for its rapidly increasing incidence include the rising prevalence of gastroesophageal reflux and obesity, combined with the decreasing prevalence of Helicobacter pylori infection. The strong male predominance remains unexplained, but hormonal influence might play an important role. Future prevention might include the treatment of reflux or obesity or chemoprevention with nonsteroidal antiinflammatory drugs or statins, but no evidence-based preventive measures are currently available. Likely future developments include endoscopic screening of better defined high-risk groups for EAC. Individuals with Barrett esophagus might benefit from surveillance, at least those with dysplasia, but screening and surveillance strategies need careful evaluation to be feasible and cost-effective. The surgery for EAC is more extensive than virtually any other standard procedure, and postoperative survival, health-related quality of life, and nutrition need to be improved (eg, by improved treatment, better decision-making, and more individually tailored follow-up). Promising clinical developments include increased survival after preoperative chemoradiotherapy, the potentially reduced impact on health-related quality of life after minimally invasive surgery, and the new endoscopic therapies for dysplastic Barrett esophagus or early EAC. The overall survival rates are improving slightly, but poor prognosis remains a challenge.
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Affiliation(s)
- Jesper Lagergren
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.
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24
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Willson TD, Salamat A, Sambo TE, Connolly MM, Podbielski FJ. Esophageal cancer and dysphagia in the HIV-positive patient. J Gastrointest Cancer 2013; 45:100-2. [PMID: 23519463 DOI: 10.1007/s12029-013-9487-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Thomas D Willson
- Department of Surgery, Saint Joseph Hospital, 2900 N Lake Shore Drive, Chicago, IL, 60657, USA,
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25
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Wolff MJ, Poles MA, Aberg JA. Clash of the microbes: let’s bring back the good guys. J Clin Invest 2013; 123:544-5. [DOI: 10.1172/jci66736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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