{"id":7705,"date":"2020-06-09T17:41:56","date_gmt":"2020-06-09T15:41:56","guid":{"rendered":"https:\/\/www.iqac.csic.es\/new-pathway-to-attack-tumor-cells-identified\/"},"modified":"2026-06-16T11:11:07","modified_gmt":"2026-06-16T09:11:07","slug":"new-pathway-to-attack-tumor-cells-identified","status":"publish","type":"post","link":"https:\/\/www.iqac.csic.es\/en\/new-pathway-to-attack-tumor-cells-identified\/","title":{"rendered":"New pathway to attack tumor cells identified"},"content":{"rendered":"

A study led by researchers from the Institut de Neuroci\u00e8ncies<\/i> (INc-UAB), in collaboration with the Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), describes a new mechanism by which the antitumor drug ABTL0812 induces stress in tumors, causing cell destruction by cytotoxic autophagy. This molecule is currently being tested in patients with advanced endometrial and squamous lung carcinoma, in combination with standard chemotherapy.<\/b><\/span><\/p>\n

The findings were published in the Autophagy<\/i> journal and show a new strategy to tackle cancer based on the manipulation of dihydroceramides, a group of cellular lipids. The authors also describe for the first time the detection of mRNAs of two stress-related proteins – CHOP and TRIB3- in blood samples from patients undergoing clinical trial, supporting their use as pharmacodynamic biomarkers. <\/span><\/p>\n

The research team was coordinated by Jose Miguel Lizcano<\/b> from the INC and the UAB Biochemistry and Molecular Biology Department. For the past years, this team has investigated how ABTL0812 exerts its antitumor action. This molecule was developed by the biopharmaceutical company AbilityPharma located at the UAB Research Park. AbilityPharma contacted Dr. Lizcano to uncover the antitumor mechanism of action of ABTL0812. Since then, clinical trials have advanced in parallel with research in the laboratory.<\/span><\/p>\n

In 2016, when clinical studies began, Dr. Lizcano\u2019s laboratory discovered that this was the first anticancer drug in trials to induce toxic autophagy in tumor cells. Now, with this drug being tested in clinical phase II, the new study shows how toxic autophagy is produced.<\/span><\/p>\n

 <\/p>\n

IT IS DUE TO THE ALTERATION OF SOME LIPIDS, THE DIHYDROCERAMIDES<\/strong><\/em><\/p>\n

\u201cCancer cell death comes from alterations in the levels of cellular dihydroceramides, a family of cellular lipids. Elevated levels of dihydroceramides provoke a severe stress of the endoplasmic reticulum, a cellular organelle in charge of protein synthesis, resulting in the accumulation of defective proteins. As a consequence, cells activate a compensatory response, called Unfolded Protein Response (UPR). This response, when sustained in time, can induce autophagy that results in cancer cell death\u201d, says Jose Miguel Lizcano. <\/span><\/p>\n

To study the role of these lipids, CSIC researchers at The Institute for Advanced Chemistry of Catalonia (IQAC) led by researchers Gemma Fabri\u00e0s<\/b> and Fina Casas<\/b>, have synthesized compounds that induce increases in the levels of dihydroceramide, either enzyme inhibitors dihydroceramide desaturase or slow converting substrates. The team has carried out the analysis of lipidomas of cells and tumors, participated in the discussion of results and in the planning of experiments, contributing its experience in the chemical study of these molecules.<\/span><\/p>\n

The study also explains why ABTL0812 does not affect non-cancer cells: \u201cThe main advantage of this molecule lies in its specificity for tumor cells. To survive the hostile environment, cancer cells overtake it by having elevated levels of ER stress and UPR activity. Our drug provokes cancer cells to overpass the stress level in which this response has protective effects, causing their death, while healthy cells still have a wider margin\u201d, says Pau Mu\u00f1oz, researcher at the INC and first author of the article.<\/span><\/p>\n

Researchers consider that this new mechanism of action could be used safely in the treatment of different types of cancers. In fact, the study also served to present the preliminary results on pancreatic and other biliary tract cancer models.<\/span><\/p>\n

This work will be presented by AbilityPharma at the American Association for Cancer Research (AACR) 2020 Congress. \u201cThe description of this mechanism of action is a very important step for AbilityPharma, and shows the excellent collaboration engaged by our company and the INc-UAB. Also, it supports a broader use of ABTL0812 in other cancer paradigms, apart from endometrial and squamous lung carcinoma\u201d explains Carles Dom\u00e8nech, AbilityPharma\u2019s executive chairman. <\/span><\/p>\n

The study was also performed in collaboration with researchers from the Complutense University of Madrid (UCM), the Catalan Institute of Oncology (ICO), the Vall d\u2019Hebron Research Institute (VHIR), the Vall d\u2019Hebron Institute of Oncology (VHIO) and the Bellvitge Biomedical Research Institute (IDIBELL). <\/span><\/p>\n

The research was funded by grants from the Spanish Ministry for the Economy and Competitiveness (MINECO) and the European Regional Development Fund (ERDF) (RTC-2017-6261-1 and IPT-2012-0614-010000), the\u00a0 <\/span>agency for business competitiveness ACCI\u00d3 (Government of Catalonia), the Centre for the Development of Industrial Technology (CDTI) and the Empresa Nacional de Innovaci\u00f3n, Sociedad An\u00f3nima (ENISA).<\/span><\/p>\n

 <\/p>\n

Reference: <\/b><\/span><\/p>\n

Mu\u00f1oz-Guardiola P, Casas J, Meg\u00edas-Roda E, Sol\u00e9 S, Perez-Montoyo H, Yeste-Velasco M, Erazo T, Di\u00e9guez-Mart\u00ednez\u00a0 <\/span>N, Espinosa-Gil\u00a0 <\/span>S, Mu\u00f1oz-Pinedo C, Yoldi\u00a0 <\/span>G, Abad\u00a0 <\/span>JL, Segura MF, Moran\u00a0 <\/span>T, Romeo M, Bosch-Barrera J, Oaknin A, Alf\u00f3n J, Dom\u00e8nech C, Fabri\u00e0s G, Velasco G, Lizcano JM. The Anti-Cancer Drug ABTL0812 Induces ER Stress-Mediated Cytotoxic Autophagy by Increasing Dihydroceramide Levels in Cancer Cells. Autophagy <\/i>2020 May 13. doi: 10.1080\/15548627.2020.1761651<\/span><\/a>.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

A study led by researchers from the Institut de Neuroci\u00e8ncies (INc-UAB), in collaboration with the Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), describes a new mechanism by which the antitumor drug ABTL0812 induces stress in tumors, causing cell destruction by cytotoxic autophagy. This molecule is currently being tested in patients with advanced endometrial and squamousContinue reading “New pathway to attack tumor cells identified”<\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":3591,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[70],"tags":[],"class_list":["post-7705","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","entry"],"acf":[],"yoast_head":"\nNew pathway to attack tumor cells identified | IQAC - Institut de Qu\u00edmica Avan\u00e7ada de Catalunya - CSIC<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.iqac.csic.es\/en\/new-pathway-to-attack-tumor-cells-identified\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"New pathway to attack tumor cells identified | IQAC - Institut de Qu\u00edmica Avan\u00e7ada de Catalunya - CSIC\" \/>\n<meta property=\"og:description\" content=\"A study led by researchers from the Institut de Neuroci\u00e8ncies (INc-UAB), in collaboration with the Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), describes a new mechanism by which the antitumor drug ABTL0812 induces stress in tumors, causing cell destruction by cytotoxic autophagy. 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