BioUT کانال دانشجویان بیوانفورماتیک و بیولوژی محاسباتی دانشگاه تهران – Telegram
BioUT کانال دانشجویان بیوانفورماتیک و بیولوژی محاسباتی دانشگاه تهران
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آدرس کانال: @BioUT

کانال دانشجویان دکتری بیوانفورماتیک و بیولوژی محاسباتی دانشگاه تهران مرجع مقالات مهم آموزشها، کارگاه ها و رویدادهای بیوانفورماتیک ایران و جهان

تنها مشاوره علمی:
@Eh5AIV

تبلیغ:
@Aivazno
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Proteogenomic insights into the biology and treatment of HPV-negative head and neck squamous cell carcinoma


A systematic inventory of HNSCC-associated proteins, phosphosites, and pathways

Three multi-omic subtypes linked to targeted treatment approaches and immunotherapy

Widespread deletion of immune modulatory genes accounts for loss of immunogenicity

Two modes of EGFR activation inform response to anti-EGFR monoclonal antibodies

https://www.cell.com/cancer-cell/fulltext/S1535-6108(20)30655-3?rss=yes&utm_source=dlvr.it&utm_medium=twitter



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Summary
We present a proteogenomic study of 108 human papilloma virus (HPV)-negative head and neck squamous cell carcinomas (HNSCCs). Proteomic analysis systematically catalogs HNSCC-associated proteins and phosphosites, prioritizes copy number drivers, and highlights an oncogenic role for RNA processing genes. Proteomic investigation of mutual exclusivity between FAT1 truncating mutations and 11q13.3 amplifications reveals dysregulated actin dynamics as a common functional consequence. Phosphoproteomics characterizes two modes of EGFR activation, suggesting a new strategy to stratify HNSCCs based on EGFR ligand abundance for effective treatment with inhibitory EGFR monoclonal antibodies. Widespread deletion of immune modulatory genes accounts for low immune infiltration in immune-cold tumors, whereas concordant upregulation of multiple immune checkpoint proteins may underlie resistance to anti-programmed cell death protein 1 monotherapy in immune-hot tumors ...



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General Information About Chronic Myelogenous Leukemia
KEY POINTS
Chronic myelogenous leukemia is a disease in which the bone marrow makes too many white blood cells.
Leukemia may affect red blood cells, white blood cells, and platelets.
Signs and symptoms of chronic myelogenous leukemia include weight loss and tiredness.
Most people with CML have a gene mutation (change) called the Philadelphia chromosome.
Tests that examine the blood and bone marrow are used to diagnose chronic myelogenous leukemia.
Certain factors affect prognosis (chance of recovery) and treatment options.
Chronic myelogenous leukemia is a disease in which the bone marrow makes too many white blood cells.
Chronic myelogenous leukemia (also called CML or chronic granulocytic leukemia) is a slowly progressing blood and bone marrow disease that usually occurs during or after middle age, and rarely occurs in children.

https://www.cancer.gov/types/leukemia/patient/cml-treatment-pdq#_1

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Anatomy of the bone. The bone is made up of compact bone, spongy bone, and bone marrow. Compact bone makes up the outer layer of the bone. Spongy bone is found mostly at the ends of bones and contains red marrow. Bone marrow is found in the center of most bones and has many blood vessels. There are two types of bone marrow: red and yellow. Red marrow contains blood stem cells that can become red blood cells, white blood cells, or platelets. Yellow marrow is made mostly of fat.




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Leukemia may affect red blood cells, white blood cells, and platelets.
Normally, the bone marrow makes blood stem cells (immature cells) that become mature blood cells over time. A blood stem cell may become a myeloid stem cell or a lymphoid stem cell. A lymphoid stem cell becomes a white blood cell.

A myeloid stem cell becomes one of three types of mature blood cells:

Red blood cells that carry oxygen and other substances to all tissues of the body.
Platelets that form blood clots to stop bleeding.
Granulocytes (white blood cells) that fight infection and disease.
In CML, too many blood stem cells become a type of white blood cell called granulocytes. These granulocytes are abnormal and do not become healthy white blood cells. They are also called leukemia cells. The leukemia cells can build up in the blood and bone marrow so there is less room for healthy white blood cells, red blood cells, and platelets. When this happens, infection, anemia, or easy bleeding may occur.




🆔@BioUT
Complete blood count (CBC). Blood is collected by inserting a needle into a vein and allowing the blood to flow into a tube. The blood sample is sent to the laboratory and the red blood cells, white blood cells, and platelets are counted. The CBC is used to test for, diagnose, and monitor many different conditions.



🆔@BioUT
Bone marrow aspiration and biopsy. After a small area of skin is numbed, a bone marrow needle is inserted into the patient’s hip bone. Samples of blood, bone, and bone marrow are removed for examination under a microscope.



🆔@BioUT
Stem cell transplant. (Step 1): Blood is taken from a vein in the arm of the donor. The patient or another person may be the donor. The blood flows through a machine that removes the stem cells. Then the blood is returned to the donor through a vein in the other arm. (Step 2): The patient receives chemotherapy to kill blood-forming cells. The patient may receive radiation therapy (not shown). (Step 3): The patient receives stem cells through a catheter placed into a blood vessel in the chest.




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Curious about the EBRAINS Collaboratory?

Learn more about our secure work environment for #researchers and developers in our #SfNConnectome21 session on Monday!

Rightwards arrow Register your interest here: https://humanbrainproject.eu/en/sfn-gc-2021/

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Send your answers to admin, 1st correct answer will get a gift, tomorrow night we will inform you about frequency of answers.
have fun 😊

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Send your answers to admin, 1st correct answer will get a gift, tomorrow night we will inform you about all answer frequencies of both tests.
have fun 😊

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Transneuronal delivery of hyper-interleukin-6 enables functional recovery after severe spinal cord injury in mice

🔺بیوتکنولوژی و یک خبر خوب

👈آسیب های نخاعی قابل ترمیم است!

🔹تا به امروز فلج ناشی از آسیب نخاع غیرقابل جبران محسوب می شده است. اما طبق گزارشی جدید از یک پژوهش در مجله نیچر دانشمندان دپارتمان فیزیولوژی سلولی به ریاست پروفسور دیتمار فیشر برای اولین بار موفق شدند موشهای فلج شده را قادر به راه رفتن کنند
🔹 کلید آن یک پروتئین سایتوکین است که به صورت مهندسی ژنتیک طراحی شده است و در طبیعت یافت نمی شود و توسط ویروس های بازطراحی شده به قسمتی از سیستم عصبی منتقل می شود که سلولهای عصبی و آکسون ها را برای بازسازی تحریک می کند و توانست موشهایی که پاراپلاژی آنها از قبل ثابت شده است طی دو تا سه هفته قادر به راه رفتن کند.

⚡️این پژوهش میتواند باعث گشودن دریچه ای جدید در تحقیقات علمی شود و آزمایش های بعدی نشان خواهد داد امکان انتقال این رویکرد جدید به انسان در آینده وجود دارد یا خیر

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The secret forces that squeeze and pull life into shape

🔺نیروهای مخفی که حیات را شکل می دهند!

🔹دانشمندان در حال کشف و پژوهش نقش نیروهای مکانیکی از جنین تا بزرگسالی در بدن هستند ،
نیروی مکانیکی مولکول ها که باعث تشکیل بافت و شکل گیری بدن می شود این مقاله مهم و جدید در نیچر چاپ شده است

🔹یک مکانیکال بیولوژیست در انستیتوی مهندسی زیستی کاتالونیا در اسپانیا می گوید ، اینکه فقط ژن ها را عامل شکل گیری بدانیم مانند این است که شما سعی می کنید کتابی فقط با نیمی از حروف الفبا بنویسید!

🔹در این پژوهش مفصل به بررسی شکل گیری جنین و بافت پرداخته شده است
همانطور که کشش بر پوست می تواند باعث تحریک سلولهای بنیادین برای تکثیر پوست شود فشار مکانیکی باعث تراکم و سفتی بافت ها می گردد
🔹این پژوهش می تواند به کلیدی برای رشد پوست در زمان بازسازی جراحی یا ترمیم زخم منجر شود

🔹در این پژوهش اشاره ای به ارتباط نیروی مکانیکی و سرطان نیز شده است

🆔@BioUT

#بیولوژی #تکوین

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