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{{CMG}}
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{{Nasopharyngeal carcinoma}}
{{Nasopharyngeal carcinoma}}
 
{{CMG}} {{AE}}{{Homa}}{{Faizan}}
==Overview==
==Overview==
Common [[causes]] of nasopharyngeal carcinoma include [[Epstein Barr virus]] ([[EBV infection|EBV infection)]], [[Human papillomavirus|Human Papillomavirus]] ([[HPV infection]]), and consumption of salted fish as a source of N-[[nitrosamine]].


==Causes==
==Causes==
Numerous studies have linked common subtypes of NPC to infection with the [[Epstein-Barr virus]] (EBV), which has also been implicated in the development of other cancers such as [[Hodgkin's disease]], [[Burkitt's lymphoma]], and [[HIV]]-associated [[lymphoma]]s. There is some evidence that [[human genetics|genetic]] factors, such as [[HLA type]] may play a role in the susceptibility of certain ethnic groups to NPC. Finally, dietary risk factors, such as the consumption of salt-cured fish high in [[nitrosamines]], may play a role in the Asian endemic regions. Well-differentiated NPC, with a [[histopathology|microscopic appearance]] most similar to other [[head and neck cancer|squamous cell cancers of the head and neck]] may be more closely associated with the standard risk factors for that disease, such as [[cigarette smoking]].<ref name="Weidner's">{{cite book |author=Richard Cote, Saul Suster, Lawrence Weiss, Noel Weidner (Editor) |title=Modern Surgical Pathology (2 Volume Set) |publisher=W B Saunders |location=London |year= |pages= |isbn=0-7216-7253-1 |oclc= |doi=}}</ref><ref>{{cite book |author=Ian F Tannock, Richard P. Hill, Robert G. Bristow, Lea Harrington (Editor) |title=The Basic Science of Oncology (Fourth Edition) |publisher=McGraw Hill |location=U.S.A |year=2005 |pages= |isbn=0-07-138774-9}}</ref>
===Common Causes===
Common [[causes]] of nasopharyngeal carcinoma may include:<ref name="JiaQin2012">{{cite journal|last1=Jia|first1=Wei-Hua|last2=Qin|first2=Hai-De|title=Non-viral environmental risk factors for nasopharyngeal carcinoma: A systematic review|journal=Seminars in Cancer Biology|volume=22|issue=2|year=2012|pages=117–126|issn=1044579X|doi=10.1016/j.semcancer.2012.01.009}}</ref><ref name="JiaLuo2010">{{cite journal|last1=Jia|first1=Wei-Hua|last2=Luo|first2=Xiang-Yu|last3=Feng|first3=Bing-Jian|last4=Ruan|first4=Hong-Lian|last5=Bei|first5=Jin-Xin|last6=Liu|first6=Wen-Sheng|last7=Qin|first7=Hai-De|last8=Feng|first8=Qi-Sheng|last9=Chen|first9=Li-Zhen|last10=Yao|first10=Shugart Yin|last11=Zeng|first11=Yi-Xin|title=Traditional Cantonese diet and nasopharyngeal carcinoma risk: a large-scale case-control study in Guangdong, China|journal=BMC Cancer|volume=10|issue=1|year=2010|issn=1471-2407|doi=10.1186/1471-2407-10-446}}</ref><ref name="GuoJohnson2009">{{cite journal|last1=Guo|first1=Xiuchan|last2=Johnson|first2=Randall C.|last3=Deng|first3=Hong|last4=Liao|first4=Jian|last5=Guan|first5=Li|last6=Nelson|first6=George W.|last7=Tang|first7=Mingzhong|last8=Zheng|first8=Yuming|last9=de The|first9=Guy|last10=O'Brien|first10=Stephen J.|last11=Winkler|first11=Cheryl A.|last12=Zeng|first12=Yi|title=Evaluation of nonviral risk factors for nasopharyngeal carcinoma in a high-risk population of Southern China|journal=International Journal of Cancer|volume=124|issue=12|year=2009|pages=2942–2947|issn=00207136|doi=10.1002/ijc.24293}}</ref><ref name="MaxwellKumar2009">{{cite journal|last1=Maxwell|first1=Jessica H.|last2=Kumar|first2=Bhavna|last3=Feng|first3=Felix Y.|last4=McHugh|first4=Jonathan B.|last5=Cordell|first5=Kitrina G.|last6=Eisbruch|first6=Avraham|last7=Worden|first7=Francis P.|last8=Wolf|first8=Gregory T.|last9=Prince|first9=Mark E.|last10=Moyer|first10=Jeffrey S.|last11=Teknos|first11=Theodoros N.|last12=Chepeha|first12=Douglas B.|last13=Stoerker|first13=Jay|last14=Walline|first14=Heather|last15=Carey|first15=Thomas E.|last16=Bradford|first16=Carol R.|title=HPV-positive/p16-positive/EBV-negative nasopharyngeal carcinoma in white North Americans|journal=Head & Neck|year=2009|pages=NA–NA|issn=10433074|doi=10.1002/hed.21216}}</ref><ref name="ChanLo2014">{{cite journal|last1=Chan|first1=Yap-Hang|last2=Lo|first2=Ching-Man|last3=Lau|first3=Hiu-Ying|last4=Lam|first4=Tai-Hing|title=Vertically transmitted nasopharyngeal infection of the human papillomavirus: Does it play an aetiological role in nasopharyngeal cancer?|journal=Oral Oncology|volume=50|issue=5|year=2014|pages=326–329|issn=13688375|doi=10.1016/j.oraloncology.2013.12.025}}</ref><ref name="DoganHedberg2014">{{cite journal|last1=Dogan|first1=Snjezana|last2=Hedberg|first2=Matthew L.|last3=Ferris|first3=Robert L.|last4=Rath|first4=Tanya J.|last5=Assaad|first5=Adel M.|last6=Chiosea|first6=Simion I.|title=Human papillomavirus and Epstein-Barr virus in nasopharyngeal carcinoma in a low-incidence population|journal=Head & Neck|volume=36|issue=4|year=2014|pages=511–516|issn=10433074|doi=10.1002/hed.23318}}</ref><ref name="StenmarkMcHugh2014">{{cite journal|last1=Stenmark|first1=Matthew H.|last2=McHugh|first2=Jonathan B.|last3=Schipper|first3=Matthew|last4=Walline|first4=Heather M.|last5=Komarck|first5=Christine|last6=Feng|first6=Felix Y.|last7=Worden|first7=Francis P.|last8=Wolf|first8=Gregory T.|last9=Chepeha|first9=Douglas B.|last10=Prince|first10=Mark E.|last11=Bradford|first11=Carol R.|last12=Mukherji|first12=Suresh K.|last13=Eisbruch|first13=Avraham|last14=Carey|first14=Thomas E.|title=Nonendemic HPV-Positive Nasopharyngeal Carcinoma: Association With Poor Prognosis|journal=International Journal of Radiation Oncology*Biology*Physics|volume=88|issue=3|year=2014|pages=580–588|issn=03603016|doi=10.1016/j.ijrobp.2013.11.246}}</ref><ref>{{Cite journal
| author = [[Radha Raghupathy]], [[Edwin Pun Hui]] & [[Anthony Tak Cheung Chan]]
| title = Epstein-Barr virus as a paradigm in nasopharyngeal cancer: from lab to clinic
| journal = [[American Society of Clinical Oncology educational book. American Society of Clinical Oncology. Annual Meeting]]
| pages = 149–153
| year = 2014
| month =
| doi = 10.14694/EdBook_AM.2014.34.149
| pmid = 24857071
}}</ref><ref name="PathmanathanPrasad1995">{{cite journal|last1=Pathmanathan|first1=Rajadurai|last2=Prasad|first2=Umapati|last3=Sadler|first3=Robert|last4=Flynn|first4=Kathryn|last5=Raab-Traub|first5=Nancy|title=Clonal Proliferations of Cells Infected with Epstein–Barr Virus in Preinvasive Lesions Related to Nasopharyngeal Carcinoma|journal=New England Journal of Medicine|volume=333|issue=11|year=1995|pages=693–698|issn=0028-4793|doi=10.1056/NEJM199509143331103}}</ref><ref>{{Cite journal
| author = [[A. S. Chan]], [[K. F. To]], [[K. W. Lo]], [[K. F. Mak]], [[W. Pak]], [[B. Chiu]], [[G. M. Tse]], [[M. Ding]], [[X. Li]], [[J. C. Lee]] & [[D. P. Huang]]
| title = High frequency of chromosome 3p deletion in histologically normal nasopharyngeal epithelia from southern Chinese
| journal = [[Cancer research]]
| volume = 60
| issue = 19
| pages = 5365–5370
| year = 2000
| month = October
| pmid = 11034072
}}</ref>


*[[EBV infection]]: Role of [[EBV infection]] in the [[pathogenesis]] of nasopharyngeal carcinoma is established. Detection of [[EBV]] [[DNA]] and [[EBV]] [[gene expression]] even in the first phases of [[tumor]] [[transformation]] in all [[tumor cell]]<nowiki/>s confirmed this role.
*[[HPV infection]]: [[Human papillomavirus|HPV infection]] is [[Association|associated]] with the non-[[endemic]] form of nasopharyngeal carcinoma. The [[Patient|patients]] with [[Human papillomavirus|HPV]] positive nasopharyngeal carcinoma has poor [[prognosis]] rather than the [[Epstein Barr virus|EBV]] positive ones.
*Consumption of salted fish: N-[[nitrosamine]] in salted fish acts as a [[carcinogenic]] factor on nasopharyngeal cells. [[Individual|Individuals]] who start consumption of salted fish from their [[childhood]] have a greater risk to [[Development|develop]] NPC rather than the ones who start in their adulthood.
==References==
==References==
{{Reflist|2}}
{{Reflist|2}}


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Latest revision as of 22:53, 29 July 2020

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Homa Najafi, M.D.[2]Faizan Sheraz, M.D. [3]

Overview

Common causes of nasopharyngeal carcinoma include Epstein Barr virus (EBV infection), Human Papillomavirus (HPV infection), and consumption of salted fish as a source of N-nitrosamine.

Causes

Common Causes

Common causes of nasopharyngeal carcinoma may include:[1][2][3][4][5][6][7][8][9][10]

References

  1. Jia, Wei-Hua; Qin, Hai-De (2012). "Non-viral environmental risk factors for nasopharyngeal carcinoma: A systematic review". Seminars in Cancer Biology. 22 (2): 117–126. doi:10.1016/j.semcancer.2012.01.009. ISSN 1044-579X.
  2. Jia, Wei-Hua; Luo, Xiang-Yu; Feng, Bing-Jian; Ruan, Hong-Lian; Bei, Jin-Xin; Liu, Wen-Sheng; Qin, Hai-De; Feng, Qi-Sheng; Chen, Li-Zhen; Yao, Shugart Yin; Zeng, Yi-Xin (2010). "Traditional Cantonese diet and nasopharyngeal carcinoma risk: a large-scale case-control study in Guangdong, China". BMC Cancer. 10 (1). doi:10.1186/1471-2407-10-446. ISSN 1471-2407.
  3. Guo, Xiuchan; Johnson, Randall C.; Deng, Hong; Liao, Jian; Guan, Li; Nelson, George W.; Tang, Mingzhong; Zheng, Yuming; de The, Guy; O'Brien, Stephen J.; Winkler, Cheryl A.; Zeng, Yi (2009). "Evaluation of nonviral risk factors for nasopharyngeal carcinoma in a high-risk population of Southern China". International Journal of Cancer. 124 (12): 2942–2947. doi:10.1002/ijc.24293. ISSN 0020-7136.
  4. Maxwell, Jessica H.; Kumar, Bhavna; Feng, Felix Y.; McHugh, Jonathan B.; Cordell, Kitrina G.; Eisbruch, Avraham; Worden, Francis P.; Wolf, Gregory T.; Prince, Mark E.; Moyer, Jeffrey S.; Teknos, Theodoros N.; Chepeha, Douglas B.; Stoerker, Jay; Walline, Heather; Carey, Thomas E.; Bradford, Carol R. (2009). "HPV-positive/p16-positive/EBV-negative nasopharyngeal carcinoma in white North Americans". Head & Neck: NA–NA. doi:10.1002/hed.21216. ISSN 1043-3074.
  5. Chan, Yap-Hang; Lo, Ching-Man; Lau, Hiu-Ying; Lam, Tai-Hing (2014). "Vertically transmitted nasopharyngeal infection of the human papillomavirus: Does it play an aetiological role in nasopharyngeal cancer?". Oral Oncology. 50 (5): 326–329. doi:10.1016/j.oraloncology.2013.12.025. ISSN 1368-8375.
  6. Dogan, Snjezana; Hedberg, Matthew L.; Ferris, Robert L.; Rath, Tanya J.; Assaad, Adel M.; Chiosea, Simion I. (2014). "Human papillomavirus and Epstein-Barr virus in nasopharyngeal carcinoma in a low-incidence population". Head & Neck. 36 (4): 511–516. doi:10.1002/hed.23318. ISSN 1043-3074.
  7. Stenmark, Matthew H.; McHugh, Jonathan B.; Schipper, Matthew; Walline, Heather M.; Komarck, Christine; Feng, Felix Y.; Worden, Francis P.; Wolf, Gregory T.; Chepeha, Douglas B.; Prince, Mark E.; Bradford, Carol R.; Mukherji, Suresh K.; Eisbruch, Avraham; Carey, Thomas E. (2014). "Nonendemic HPV-Positive Nasopharyngeal Carcinoma: Association With Poor Prognosis". International Journal of Radiation Oncology*Biology*Physics. 88 (3): 580–588. doi:10.1016/j.ijrobp.2013.11.246. ISSN 0360-3016.
  8. Radha Raghupathy, Edwin Pun Hui & Anthony Tak Cheung Chan (2014). "Epstein-Barr virus as a paradigm in nasopharyngeal cancer: from lab to clinic". American Society of Clinical Oncology educational book. American Society of Clinical Oncology. Annual Meeting: 149–153. doi:10.14694/EdBook_AM.2014.34.149. PMID 24857071.
  9. Pathmanathan, Rajadurai; Prasad, Umapati; Sadler, Robert; Flynn, Kathryn; Raab-Traub, Nancy (1995). "Clonal Proliferations of Cells Infected with Epstein–Barr Virus in Preinvasive Lesions Related to Nasopharyngeal Carcinoma". New England Journal of Medicine. 333 (11): 693–698. doi:10.1056/NEJM199509143331103. ISSN 0028-4793.
  10. A. S. Chan, K. F. To, K. W. Lo, K. F. Mak, W. Pak, B. Chiu, G. M. Tse, M. Ding, X. Li, J. C. Lee & D. P. Huang (2000). "High frequency of chromosome 3p deletion in histologically normal nasopharyngeal epithelia from southern Chinese". Cancer research. 60 (19): 5365–5370. PMID 11034072. Unknown parameter |month= ignored (help)

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