HPV16のサブタイプによる感染と子宮頸部腫瘍症との関連
J A Tidy1, K H Vousden, P J Farrell
1Ludwig Institute for Cancer Research, St Mary's Branch, St Mary's Hospital Medical School, Norfolk Place, London.
Lancet (London, England)
|June 3, 1989
まとめ
新しいヒトパピローマウイルス (HPV) 変種であるHPV16bが特定されました. 子宮頸がんで見られるHPV16aとは異なり,HPV16bは健康な個人に多く見られ,子宮頸がんではまれである.
科学分野:
- ウイルス学 ウイルス学 ウイルス学
- 分子生物学は分子生物学である.
- 腫瘍学 腫瘍学
背景:
- 16型ヒトパピローマウイルス (HPV) は子宮頸がんの主な原因である.
- HPV菌株内の遺伝的変異は,がん発生の可能性に影響を与える可能性があります.
- HPVの多様性を理解することは,診断と予防戦略にとって極めて重要です.
研究 の 目的:
- HPV16の新しい変種を特定し,特徴づけること.
- 子宮頸部腫瘍および正常な集団におけるHPV16変異の有病率を調査する.
- HPV16aとHPV16bの遺伝子の違いを比較する.
主な方法:
- ポリメラーゼ連鎖反応 (PCR) アッセイは,HPVの変種を検出し,区別するために使用されました.
- 遺伝子の変異や消去を特定するために,配列解析が行われました.
- HPV型は,子宮頸がんと正常な集団からのサンプルで実施されました.
主要な成果:
- 独特のHPV16変種が特定され,HPV16bと指定されました.
- HPV16bは,HPV16aと比較して,21bpの削除と,その上流の規制領域でいくつかの点変異を有しています.
- HPV16aは,研究されたすべての子宮頸がんサンプルにおいてのみ検出されました.
- HPV16bは,子宮頸部腫瘍症ではめったに見つからないが,正常な集団では一般的であった.
結論:
- HPV16bは,異なる流行病学的プロファイルを持つ HPV16の独特の遺伝的変異体を表しています.
- HPV16bの遺伝的差異は,その腫瘍性活動や伝播動態に影響を与える可能性があります.
- HPV16aは,子宮頸がんに関連する主要な変種であり続け,HPV16bは腫瘍発生性がないか,または腫瘍発生性が低いようです.
関連する概念動画
Mechanisms of Retrovirus-induced Cancers
Retroviruses are RNA viruses that have been shown to cause cancers in diverse species, including chickens, mice, cats, and monkeys. The RNA genomes of these viruses are first reverse-transcribed into single and then double-stranded DNA (dsDNA) copies. This dsDNA called proviral DNA then integrates into the host genome. Subsequently, the host cell transcribes the proviral DNA in concert with the chromosomal DNA. This leads to the production of viral RNA and proteins that assemble at the host...
Rous Sarcoma Virus (RSV) and Cancer
Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
Mechanisms of Retrovirus-induced Cancers
Retroviruses are RNA viruses that have been shown to cause cancers in diverse species, including chickens, mice, cats, and monkeys. The RNA genomes of these viruses are first reverse-transcribed into single and then double-stranded DNA (dsDNA) copies. This dsDNA called proviral DNA then integrates into the host genome. Subsequently, the host cell transcribes the proviral DNA in concert with the chromosomal DNA. This leads to the production of viral RNA and proteins that assemble at the host...
Chickenpox
Chickenpox is an acute, highly contagious disease caused by the varicella-zoster virus (VZV), a double-stranded DNA virus belonging to the Herpesviridae family. Its transmission occurs primarily through the inhalation of respiratory droplets or direct contact with vesicular fluid from skin lesions. The incubation period typically ranges from 10 to 21 days, during which the virus replicates and disseminates through sequential phases within the host. Although generally self-limiting in children,...
Genital Herpes
Genital herpes is a sexually transmitted infection primarily caused by herpes simplex virus type 2 (HSV-2), though herpes simplex virus type 1 (HSV-1) is increasingly implicated in genital infections, particularly among younger populations. Transmission occurs mainly through sexual contact, with asymptomatic viral shedding serving as a major route of spread. This characteristic makes HSV-2 difficult to control at a population level, as individuals may unknowingly transmit the virus even in the...


