Movatterモバイル変換


[0]ホーム

URL:


About:Abscopal effect

An Entity of Type:disease,from Named Graph:http://dbpedia.org,within Data Space:dbpedia.org

The abscopal effect is a hypothesis in the treatment of metastatic cancer whereby shrinkage of untreated tumors occurs concurrently with shrinkage of tumors within the scope of the localized treatment. R.H. Mole proposed the term “abscopal” (‘ab’ - away from, ‘scopus’ - target) in 1953 to refer to effects of ionizing radiation “at a distance from the irradiated volume but within the same organism.”

thumbnail
PropertyValue
dbo:abstract
  • التأثير الافراغي أو ما يسمى تأثير مباعد المرمى :هو فرضيه في علاج السرطان المنتشر حيث يحدث فيه انكماش الأورام غير المعالجة بالتزامن مع انكماش الأورام داخل نطاق العلاج الموضعي.أقترح عام 1953 للإشارة إلى تأثيرات الإشعاع المؤين على مسافه من الحجم المشع ولكن داخل نفس الكائن الحي. ارتبط مصطلح التأثير البطني المرتبط مبدئيا بالعلاج الإشعاعي الموضعي للورم المفرد، ليشمل أيضا أنواعا أخرى من العلاجات الموضعيه مثل :الحقن داخل الورم. وفي عام 2004 افترض لأول مره أن الجهاز المناعي قد يكون مسؤولا عن هذه التأثيرات المضادة للأورام خارج الهدف وقد أثبتت هذه الفرضيه دراسات مختلفه في النماذج الحيوانيه لسرطان الجلد، وسرطان الثدي،، وأورام القولون والمستقيم. ، وقد تم وصف هذه التأثيرات الباطنية بوساطه مناعيه في المرضى الذين يعانون من سرطان النقيلي. حين كانت هذه التقارير نادرة للغاية طوال القرن العشرين فإن الاستخدام السريري للاجسام المضادة لحجب نقاط التفتيش المناعية مثل ipilimumab و pembrolizumab ادى إلى زيادة كبيرة في عدد المرضى الذين يستجيبون بشكل مطلق في مجموعات مختارة من المرضى مثل اولئك الذين يعانون من سرطان الجلد النقيل. ، (ar)
  • Unter dem abscopalen Effekt (lateinisch „ab“ = nicht, fern von und Altgriechisch σκοπός (skopós) = Ziel, Zweck) versteht man die Tumormassereduktion (in der Regel Rückbildung von Metastasen) bei Behandlung anderer Tumoranteile durch Bestrahlung. Er wurde erstmals 1953 von Mole beschrieben. Der Wirkmechanismus ist nicht bekannt, es wird eine systemische immunologische Reaktion des Körpers gegen den Tumor vermutet, der durch die lokale Behandlung getriggert wird. Dieser seltene Effekt wurde für verschiedene Tumorentitäten, z. B. Melanom, multiples Myelom, hepatozelluläres Karzinom, Ösophaguskarzinom, Lungenkarzinom (Adenokarzinom), medulläres Schilddrüsenkarzinom, Merkelzellkarzinom, Zervixkarzinom, Lymphome in Fallberichten beschrieben und experimentell z. B. für das Mammakarzinom (Mausmodell) erforscht. (de)
  • The abscopal effect is a hypothesis in the treatment of metastatic cancer whereby shrinkage of untreated tumors occurs concurrently with shrinkage of tumors within the scope of the localized treatment. R.H. Mole proposed the term “abscopal” (‘ab’ - away from, ‘scopus’ - target) in 1953 to refer to effects of ionizing radiation “at a distance from the irradiated volume but within the same organism.” Initially associated with single-tumor, localized radiation therapy, the term “abscopal effect” has also come to encompass other types of localized treatments such as electroporation and intra-tumoral injection of therapeutics. However, the term should only be used when truly local treatments result in systemic effects. For instance, chemotherapeutics commonly circulate through the blood stream and therefore exclude the possibility of any abscopal response. The mediators of the abscopal effect of radiotherapy were unknown for decades. In 2004, it was postulated for the first time that the immune system might be responsible for these “off-target” anti-tumor effects. Various studies in animal models of melanoma, mammary, and colorectal tumors have substantiated this hypothesis. Abscopal effects of Targeted intraoperative radiotherapy have been seen in clinical studies, including in randomized trials where women treated with lumpectomy for breast cancer combined with whole breast radiotherapy showed reduced mortality from non-breast-cancer causes when compared with whole breast radiotherapy. Furthermore, immune-mediated abscopal effects were also described in patients with metastatic cancer. Whereas these reports were extremely rare throughout the 20th century, the clinical use of immune checkpoint blocking antibodies such as ipilimumab or pembrolizumab has greatly increased the number of abscopally responding patients in selected groups of patients such as those with metastatic melanoma. (en)
  • L’effet abscopal (du latin ab- « éloigné » et du grec skopos « cible », littéralement « loin de la cible ») est l’effet provoqué par l’irradiation sur les tissus éloignés du site irradié et dans le domaine de la cancérologie l'augmentation d'efficacité de l'immunothérapie après radiothérapie. Cet effet a été décrit dès 1953 mais il a vers 2015-2017 été source d'un engouement car laissant espérer une amélioration possible des moyens de traiter le cancer quand il est associé à certains médicaments. (fr)
  • L'effetto abscopal è un fenomeno che avviene durante trattamento di un cancro metastatico nel momento in cui il trattamento localizzato del tumore provoca non solo un restringimento del suddetto, ma anche un restringimento di tumori al di fuori del campo di applicazione del trattamento localizzato. Richard H. Mole ha proposto nel 1953 il termine abscopal (dal latino ab, «lontano da», e scopus, «obiettivo») per riferirsi agli effetti della radiazione "a distanza dal volume irradiato ma all'interno dello stesso organismo". Inizialmente la terapia radioterapica localizzata era associata al tumore singolo, ma il fenomeno comprende anche altri tipi di trattamenti localizzati come l'elettroporazione e l'iniezione intra-tumorale di terapeutici. L'effetto abscopal è abbastanza raro, ma il suo effetto sul cancro può essere stupefacente portando alla possibile scomparsa dei tumori. Tale successo è stato descritto per una varietà di tumori, tra cui il melanoma, i linfomi cutanei e il cancro ai reni. (it)
  • 遠端效應(Abscopal effect)又稱遠隔效應,是對腫瘤已遠端轉移的癌症病患進行放射治療破壞原發腫瘤時,遠端未受輻射的腫瘤也發生萎縮的現象,最早於1953年由R.H. Mole提出,得名自拉丁文的ab-(遠離)與scopus(目標),之後數十年遠端效應的機制皆未知,直到2004年後才漸有動物實驗闡明,發現可能是人體自身的免疫反應所致。 癌細胞受輻射殺傷時會釋出許多腫瘤抗原,可透過腫瘤周圍的抗原呈递细胞(樹突細胞與巨噬細胞)活化特異性免疫反應,激活可針對這些抗原的細胞毒性T細胞,後者可透過循環系統擴散至全身,並攻擊遠端未受輻射影響的腫瘤以達成遠端效應。有實驗結果顯示發生遠端效應時,病患體內針對腫瘤抗原的細胞毒性T細胞增加,也有實驗透過動物模型發現移除T細胞後遠端效應即消失。除激活細胞毒性T細胞外,受輻射殺傷的癌細胞還可能釋放(DAMPs)分子與細胞激素以促進免疫反應。同時對某些癌症病患進行放射治療與化學治療可能有助提升遠端效應,不過癌細胞也有許多免疫抑制機制(例如與調節T細胞等抑制型細胞、抑制型的細胞激素與其他逃脫免疫的反應)可抑制遠端效應。 (zh)
dbo:thumbnail
dbo:wikiPageID
  • 35026040 (xsd:integer)
dbo:wikiPageLength
  • 8700 (xsd:nonNegativeInteger)
dbo:wikiPageRevisionID
  • 1086563606 (xsd:integer)
dbo:wikiPageWikiLink
dbp:wikiPageUsesTemplate
dcterms:subject
gold:hypernym
rdf:type
rdfs:comment
  • L’effet abscopal (du latin ab- « éloigné » et du grec skopos « cible », littéralement « loin de la cible ») est l’effet provoqué par l’irradiation sur les tissus éloignés du site irradié et dans le domaine de la cancérologie l'augmentation d'efficacité de l'immunothérapie après radiothérapie. Cet effet a été décrit dès 1953 mais il a vers 2015-2017 été source d'un engouement car laissant espérer une amélioration possible des moyens de traiter le cancer quand il est associé à certains médicaments. (fr)
  • 遠端效應(Abscopal effect)又稱遠隔效應,是對腫瘤已遠端轉移的癌症病患進行放射治療破壞原發腫瘤時,遠端未受輻射的腫瘤也發生萎縮的現象,最早於1953年由R.H. Mole提出,得名自拉丁文的ab-(遠離)與scopus(目標),之後數十年遠端效應的機制皆未知,直到2004年後才漸有動物實驗闡明,發現可能是人體自身的免疫反應所致。 癌細胞受輻射殺傷時會釋出許多腫瘤抗原,可透過腫瘤周圍的抗原呈递细胞(樹突細胞與巨噬細胞)活化特異性免疫反應,激活可針對這些抗原的細胞毒性T細胞,後者可透過循環系統擴散至全身,並攻擊遠端未受輻射影響的腫瘤以達成遠端效應。有實驗結果顯示發生遠端效應時,病患體內針對腫瘤抗原的細胞毒性T細胞增加,也有實驗透過動物模型發現移除T細胞後遠端效應即消失。除激活細胞毒性T細胞外,受輻射殺傷的癌細胞還可能釋放(DAMPs)分子與細胞激素以促進免疫反應。同時對某些癌症病患進行放射治療與化學治療可能有助提升遠端效應,不過癌細胞也有許多免疫抑制機制(例如與調節T細胞等抑制型細胞、抑制型的細胞激素與其他逃脫免疫的反應)可抑制遠端效應。 (zh)
  • التأثير الافراغي أو ما يسمى تأثير مباعد المرمى :هو فرضيه في علاج السرطان المنتشر حيث يحدث فيه انكماش الأورام غير المعالجة بالتزامن مع انكماش الأورام داخل نطاق العلاج الموضعي.أقترح عام 1953 للإشارة إلى تأثيرات الإشعاع المؤين على مسافه من الحجم المشع ولكن داخل نفس الكائن الحي. (ar)
  • The abscopal effect is a hypothesis in the treatment of metastatic cancer whereby shrinkage of untreated tumors occurs concurrently with shrinkage of tumors within the scope of the localized treatment. R.H. Mole proposed the term “abscopal” (‘ab’ - away from, ‘scopus’ - target) in 1953 to refer to effects of ionizing radiation “at a distance from the irradiated volume but within the same organism.” (en)
  • Unter dem abscopalen Effekt (lateinisch „ab“ = nicht, fern von und Altgriechisch σκοπός (skopós) = Ziel, Zweck) versteht man die Tumormassereduktion (in der Regel Rückbildung von Metastasen) bei Behandlung anderer Tumoranteile durch Bestrahlung. Er wurde erstmals 1953 von Mole beschrieben. Der Wirkmechanismus ist nicht bekannt, es wird eine systemische immunologische Reaktion des Körpers gegen den Tumor vermutet, der durch die lokale Behandlung getriggert wird. (de)
  • L'effetto abscopal è un fenomeno che avviene durante trattamento di un cancro metastatico nel momento in cui il trattamento localizzato del tumore provoca non solo un restringimento del suddetto, ma anche un restringimento di tumori al di fuori del campo di applicazione del trattamento localizzato. (it)
rdfs:label
  • تأثير إفراغي (ar)
  • Abscopaler Effekt (de)
  • Abscopal effect (en)
  • Effet abscopal (fr)
  • Effetto abscopal (it)
  • 遠端效應 (zh)
owl:sameAs
prov:wasDerivedFrom
foaf:depiction
foaf:isPrimaryTopicOf
isdbo:wikiPageRedirects of
isdbo:wikiPageWikiLink of
isfoaf:primaryTopic of
Powered by OpenLink Virtuoso   This material is Open Knowledge    W3C Semantic Web Technology    This material is Open Knowledge   Valid XHTML + RDFa
This content was extracted fromWikipedia and is licensed under theCreative Commons Attribution-ShareAlike 3.0 Unported License

[8]ページ先頭

©2009-2025 Movatter.jp