#胰臟癌👫 #標靶治療🎯 開發 #抗癌藥物 15年磨一劍 想想那台 #小挖土機🚢 ⛏
胰臟癌是相當棘手的癌症,確診時,患者的腫瘤細胞通常已經轉移,增加治療難度...
當年 #臺大醫院 醫師與本院 #李文華 院士分享臨床治療心得時,李院士意識到:若能結合臨床經驗與科學研究,有助於解決這個攸關全人類健康的重大問題,挽救更多生命!
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在李文華院士帶領下,由本院 #基因體研究中心、中國醫藥大學新藥開發中心組成的跨機構研究團隊,歷經多年研究,於今(2021)年宣布👉破解胰臟癌細胞的訊息傳遞機制,並且合成出 #多胜肽分子,可以 #阻斷致癌訊號傳遞,#抑制癌細胞的生長與轉移。
🎯實驗顯示能有效延長胰臟癌小鼠的壽命,而且不會影響正常的免疫反應。研究成果已發表在國際期刊《科學轉譯醫學》(Science Translational Medicine)
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💥原來,在胰臟癌細胞表面大量出現的受體(存在於細胞膜上的蛋白質分子)「IL-17RB」,容易兩兩結合,形成同質雙聚體,遇到配體IL-17B後,就會召喚激酶「MLK4」,催化蛋白質磷酸化,有如按下開關般,啟動後續一連串致癌訊號🔔 🔔 🔔
為了阻斷癌化訊號傳遞🔕🔕🔕,研究團隊設計出多胜肽分子,它是一組胺基酸序列,可在細胞內特定位置取代激酶MLK4,阻止激酶與受體交互作用。相較於團隊2015年研發出的抗體藥物,治療更為精準,而且不影響患者免疫力。
目前團隊致力研發效果更穩定的 #小分子藥物,以利胰臟癌患者進行 #標靶治療。
🔴新聞稿:https://reurl.cc/v5oAoo
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Pancreatic cancer is known to be vicious, pancreatic ductal adenocarcinoma (PDAC) is the type that accounts for 95% of pancreatic cancer and so far it is still incurable. An added fact makes PDAC doomed lies in its tendency to have metastasis, meaning cancer cells have already spread to other organs, when diagnosed.
In this study, “The results not only establish a clear pathway of how proximal signaling of IL-17RB occurs, but also provides insight into how this pathway is clinically significant in many pancreatic cancers.”, commented Dr. Chun-Mei Hu.
🔴Press Release:https://reurl.cc/dV9A8g
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研究團隊成員:中央研究院李文華院士、胡春美助研究員和沈家寧副研究員;中國醫藥大學吳恒祥助理教授;臺大醫院田郁文醫師、張毓廷醫師、章明珠醫師和鄭永銘醫師。👏👏👏
Team members are from Academia Sinica (Dr. Wen-Hwa Lee, Dr. Chun-Mei Hu and Dr. Chia-Ning Shen), China Medical University (Dr. Heng-Hsiung Wu) and National Taiwan University physicians (Dr. Yu-Wen Tien, Dr. Yu-Ting Chang, Dr. Ming-Chu Chang and Dr. Yung-Ming Jeng.👏👏👏
#研究團隊十五年青春 #迎戰癌中之王 #存活率最低的癌症
同時也有10000部Youtube影片,追蹤數超過2,910的網紅コバにゃんチャンネル,也在其Youtube影片中提到,...
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cancer metastasis 在 中央研究院 Academia Sinica Facebook 的最佳解答
表皮常見蛋白質 竟是 #乳癌 的幫兇!🤯
📣中研院新發現!常見於表皮細胞的蛋白 #DSG2 會 #增加 或 #減少,藉以促使乳癌的 #增生 與 #移轉!
📣論文登上《#美國國家科學院院刊》(PNAS)
🤯🤯🧐🧐
#蛋白質DSG2是乳癌惡化要角
蛋白質DSG2(Desmoglein2)原本常見於表皮細胞,負責細胞之間的 #黏附。
但是,基因體研究中心 #黃雯華 團隊發現,乳癌患者切片的DSG2含量異常的高。📈
而這些患者的 #存活率都偏低、 #復發機率也較高!
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#蛋白質減少反而幫助癌症轉移
👩🔬 黃雯華解釋,DSG2 透過4個步驟讓癌症惡化、轉移:
1⃣ DSG2增加↗,藉由DSG2的黏附能力使腫瘤不斷增大。
2⃣ 腫瘤變大,其核心微環境出現 #缺氧 狀態時,另一種蛋白質── #厭氧關鍵調節蛋白 HIF-1α便會啟動反應:#抑制DSG2。
3⃣ DSG2被抑制後↘,癌細胞失去黏附力,開始 #脫離 原生腫瘤、#成團 進入血液循環傳到其他部位。👾
4⃣ 當癌細胞順利找到其他部位,生長成新腫瘤,形成 #癌轉移。😨
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#未來可能應用
將其作為癌症診斷的生物標記,用於臨床診斷、或檢視治療方法是否奏效,或作為治療標靶。🎯
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#值得繼續研究
👉不只有乳癌,許多數據也顯示 #子宮頸癌、 #頭頸癌 和 #肺癌 等也都有大量DSG2,且會影響預後情形,值得後續關注。
👉厭氧蛋白HIF-1α不僅會透過激活促癌基因使癌症惡化,有時還會藉由抑制其他促癌基因(如DSG2)的表現,加速腫瘤轉移。
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DSG2 Controls #BreastCancer Metastasis
Professor Wendy W. Hwang-Verslues of Genomics Research Center discovered that expression of #Desmoglein2 ( DSG2), a component of the desmosome complex that enhances adhesion between cells, is strongly correlated with poor prognosis and high recurrence in breast cancer. Based on the oxygen level in the #microenvironment, the level of DSG2 expression can #dynamically increase and decrease to facilitate different stages of cancer cell release from the primary tumor and colonization of a new site in the body. These findings reveal the importance of DSG2 in all stages of breast cancer metastasis and make DSG2 a good candidate for finding a way to inhibit breast cancer metastasis. This research has been published in the prestigious journal Proceedings of the National Academy of Sciences of the United States of America ( #PNAS).
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新聞稿:https://www.sinica.edu.tw/ch/news/6783
press release:https://www.sinica.edu.tw/en/news/6783
論文全文:https://www.pnas.org/content/118/3/e2014408118
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中央研究院基因體研究中心
#通訊作者黃雯華
#第一作者張博皓
cancer metastasis 在 CheckCheckCin Facebook 的最讚貼文
【癌字三個口】健康從飲食開始
#此醣不同彼糖
#多醣體可增強免疫力及抑制腫瘤細胞生長
#星期四食材
健康從飲食開始
不少人聞癌色變,所以坊間不少食物都標榜防癌、治癌以增加銷路,究竟哪些食物真正有防癌作用呢?研究發現含有多醣體的食材,能抑制腫瘤細胞的生長及轉移,以達致防癌的功效,海參、黑木耳、雪耳、花膠等坊間推祟備至的「防癌食材」都是含有多醣體。雖然聲稱這些食材有防癌功效,但還是要配合體質進食,例如黑木耳能活血,適合血瘀體質人士,但氣虛、血虛、陽虛、脾胃虛弱則不宜多吃;雪耳、海參、花膠都有滋陰作用,但滋補過度卻容易生濕。
從中醫角度來看,人體內氣血運行不暢通,體內存在著氣滯、血瘀、寒凝、濕聚等情況,就會形成癌症易發的體質,所以防癌的先決條件是注意調理身體,飲食清淡而均衡,少吃肥甘厚味、辛辣、煎炸、燒烤、醃製食物,作息定時,適量運動,並應該諮詢醫師辨證論治,對症下藥。
黑木耳 — 性平,有滋養益胃、涼血、活血的功效,適合血瘀體質人士,但氣虛、血虛、陽虛、脾胃虛弱則不宜多吃。
雪耳 — 性平,具滋陰生津、潤肺養胃、強心補腦功效,適合肺熱津傷或肺氣虛弱、燥咳無痰、痰中帶血、氣喘氣短、咽喉乾燥、聲音嘶啞、病後體虛人士食用。
冬蟲草— 性溫,有補肺益腎、止咳化痰功效。適合身體虛弱及氣血虛弱的人,但感冒未清者不宜進食。
Eating healthy
Many people are afraid of cancer, so there are a lot of food products advertised as anti-cancer or cancer cure to promote sales. Which foods are truly anti-cancer? Studies have found that foods containing polysaccharides can inhibit the growth and metastasis of tumor cells to achieve anti-cancer effects. The popular "anti-cancer foods" are sea cucumber, black fungus, snow fungus and fish maw as they contain polysaccharides. Although these ingredients seem to have anti-cancer effects, they should be consumed according to body condition. For example, black fungus can promote blood circulation and is suitable for people with blood stasis. However, those with qi, blood and yang deficiency and weak asthenic spleen and stomach should not eat too much. Snow fungus, sea cucumber and fish maw can nourish yin, but you may retain dampness if you nourish the body too much.
From a Chinese medicine perspective, when qi and blood in the human body are not running smoothly leading to qi stagnation, blood stasis, cold stagnation, and dampness in the body, that can create a cancer-prone body condition. Therefore, the first key for preventing cancer is to condition the body properly, have light and balanced diet, eat less oily, fatty, spicy, fried, grilled and pickled foods, rest appropriately, exercise regularly, and you should seek a professional practitioner advice to properly manage your health.
Black fungus- mild in nature, nourishes stomach, cools blood and improves blood circulation. Suitable for those with blood stasis body types. Those with qi, blood and yang deficiency and weak asthenic spleen and stomach should not eat too much.
Snow fungus- mild in nature, nourishes yin, promotes fluid production, moistens the lungs, nourishes stomach, and strengthens the heart and mind. It is suitable for those with hot lungs or asthenic lung qi, dry cough without phlegm, phlegm with blood stain, shortness of breath, dry and sore throat, coarse voice, and weakness post illness.
Cordyceps- warm in nature, replenishes the lungs and nourishes the kidneys, relieves cough and reduces phlegm. For those with poor health and asthenic qi and blood, it can strengthen the body. Those recovering from a cold/flu should not consume.
#男 #女 #血瘀 #氣虛 #血虛 #陽虛 #陰虛 #我疲憊 #我畏冷 #我狀態OK #我有壓力 #我枯燥
cancer metastasis 在 Cancer - Metastasis - YouTube 的推薦與評價
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