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Topic Review
Vitamin D in NF1
Vitamin D is a fat-soluble steroid hormone playing a pivotal role in calcium and phosphate homeostasis as well as in bone health. Several investigations indicated that vitamin D action extends far beyond bone health and calcium metabolism, showing broad effects on a variety of critical illnesses, including cancer, infections, cardiovascular and autoimmune diseases. Epidemiological studies indicated that low circulating vitamin D levels inversely correlate with cutaneous manifestations and bone abnormalities, clinical hallmarks of neurofibromatosis type 1 (NF1). NF1 is an autosomal dominant tumour predisposition syndrome causing significant pain and morbidity, for which limited treatment options are available.
  • 1.0K
  • 29 Jan 2021
Topic Review
PKM2
The pyruvate kinase isoenzyme type M2 (PKM2) controls cell progression and survival through the regulation of key signaling pathways. 
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  • 23 Feb 2021
Topic Review
Squamous Cell Carcinoma
More than 90% of all head and neck cancers (HNCs) are head and neck squamous cell carcinomas (HNSCCs) arising from the mucosal surfaces of the upper aerodigestive tract. HNSCCs are the the sixth most prevalent cancer worldwide, and are often associated with either carcinogens, such as alcohol and tobacco use, or oncogenic human papillomavirus (HPV) infection. HNSCCs have been found to be diverse with a high rate of genetic heterogeneity, resulting in hyper-activation of oncogenes (e.g., PIK3CA and HRAS) and loss-of-function mutations in tumor suppressor genes (e.g., TP53, CASP8, and NOTCH1). HNSCC cohorts from The Cancer Genome Atlas (TCGA) RNA-seq data and clinical data show patients with PIK3CA alterations, including amplification and gain, also have a higher chance of harboring TP53 mutations. In addition, these patients bearing both mutations have a significantly worse 10-year survival prognosis compared with their wildtype cohort counterparts.
  • 1.0K
  • 22 Sep 2020
Topic Review
L19-TNF
Tumor necrosis factor (TNF) is used as a pro-inflammatory payload to trigger haemorrhagic necrosis and boost anti-cancer immunity at the tumor site. There is  a depotentiated version of TNF (carrying the single point mutation I97A), which displayed reduced binding affinity to its cognate receptor tumor necrosis factor receptor 1 (TNFR-1) and lower biocidal activity. 
  • 1.0K
  • 29 Mar 2022
Topic Review
Molecular Mechanisms of Resistance to PARP Inhibitors
PARP1 enzyme plays an important role in DNA damage recognition and signalling. PARP inhibitors are approved in breast, ovarian, pancreatic, and prostate cancers harbouring a pathogenic variant in BRCA1 or BRCA2, where PARP1 inhibition results mainly in synthetic lethality in cells with impaired homologous recombination. However, the increasingly wide use of PARP inhibitors in clinical practice has highlighted the problem of resistance to therapy. Several different mechanisms of resistance have been proposed, although only the acquisition of secondary mutations in BRCA1/2 has been clinically proved.
  • 1.0K
  • 07 Jun 2022
Topic Review
Curcumin in Metastatic Colorectal Cancer
Curcumin (diferuloylmethane)—the “golden spice”—has been widely studied because of its pleiotropic effects in cancer. Curcumin, a hydrophobic polyphenol, is derived from the rhizome of the herb Curcuma longa and constitutes the major curcuminoid in the spice turmeric (77% curcumin, 17% demethoxycurcumin, 3% bis-demethoxycurcumin). Curcumin is “generally recognized as safe” (GRAS) as a dietary supplement by the U.S Food and Drug Administration (FDA) and the European Food Safety Authority (EFSA) and has been catalogued with the E100 code of the European Union. 
  • 1.0K
  • 09 Dec 2022
Topic Review
Autophagy in Pancreatic Cancer
Pancreatic cancer is known to have the lowest survival outcomes among all major cancers, and unfortunately, this has only been marginally improved over last four decades. The innate characteristics of pancreatic cancer include an aggressive and fast-growing nature from powerful driver mutations, a highly defensive tumor microenvironment and the upregulation of advantageous survival pathways such as autophagy. Autophagy involves targeted degradation of proteins and organelles to provide a secondary source of cellular supplies to maintain cell growth.
  • 1.0K
  • 29 Jul 2022
Topic Review
Locally Advanced Head, Neck Cancers
Locally advanced head and neck cancer is a unique challenge for cancer management in the Covid-19 situation. The negative consequences of delaying radio-chemotherapy treatment make it necessary to prioritize these patients, the continuation of radiotherapy being indicated even if SARS-CoV-2 infection is confirmed in the case of patients with moderate and mild symptoms.
  • 1.0K
  • 01 Mar 2021
Topic Review
Cripto-1 in Tumor Progression
Cripto-1 is an essential protein for human development that plays a key role in the early phase of gastrulation in the differentiation of an embryo as well as assists with wound healing processes. Importantly, Cripto-1 induces epithelial to mesenchymal transition to turn fixed epithelial cells into a more mobile mesenchymal phenotype through the downregulation of epithelial adhesion molecules such as E-cadherin, occludins, and claudins, and the upregulation of mesenchymal, mobile proteins, such as N-cadherin, Snail, and Slug. Consequently, Cripto-1’s role in inducing EMT to promote cell motility is beneficial in embryogenesis, but detrimental in the formation, progression and metastasis of malignant tumors. Indeed, Cripto-1 is found to be upregulated in most cancers, such as breast, lung, gastrointestinal, hepatic, renal, cervical, ovarian, prostate, and skin cancers. Through its role in EMT, Cripto-1 can remodel cancer cells to enable them to travel through the extracellular matrix as well as blood and lymphatic vessels to metastasize to different organs. Additionally, Cripto-1 promotes the survival of cancer stem cells, which can lead to relapse in cancer patients. 
  • 1.0K
  • 06 Sep 2021
Topic Review
Chemotherapy-Induced Neuropathy and Diabetes
Diabetes mellitus and cancer are among the four most common chronic diseases, and are two of the leading causes of death worldwide [1]. Treatment of cancer patients with chemotherapy is influenced by multiple aspects, including neuropathy induced by chemotherapy drugs their self.
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  • 06 Oct 2021
Topic Review
Lymphotropic viruses in Latin America
The RIAL-CYTED harbors a multidisciplinary Ibero-American network of clinical and basic researchers created to form a platform of multi-center cooperation focusing on increasing our knowledge of lymphoma, particularly for more underdeveloped or developing regions. This network aims to improve the diagnosis and prognosis of these neoplasms throughout LA by way of homogenizing its identification and classification. With that purpose, in this review, we sought to systematically organize and analyze the literature related to the lymphotropic and lymphomagenic viruses EBV, KSHV and HTLV-1, in order to better understand their loco-regional distribution and the risk our population carries in terms of developing lymphoma.
  • 1.0K
  • 28 Oct 2020
Topic Review
Superficial Spindle Cell Mesenchymal Tumors
Superficial spindle cell mesenchymal tumors form a diverse group of lesions with benign and malignant entities that are often very similar clinically and/or histologically. In children, the patient’s age; the lesion site; the presentation as a mass, nodule, or plaque; and the location in the dermis or subcutis are important features that will guide the dermatologist and the pathologist.
  • 1.0K
  • 02 Oct 2021
Topic Review
Monoclonal Antibody-based Immunotherapy
Immunotherapy is one of the most effective therapeutic options for cancer patients. Five specific classes of immunotherapies, which includes cell-based chimeric antigenic receptor T-cells, checkpoint inhibitors, cancer vaccines, antibody-based targeted therapies, and oncolytic viruses. Immunotherapies can improve survival rates among cancer patients. At the same time, however, they can cause inflammation and promote adverse cardiac immune modulation and cardiac failure among some cancer patients as late as five to ten years following immunotherapy.
  • 1.0K
  • 11 Jan 2021
Topic Review
Segmentectomy for Lung Cancer
A lung segmentectomy, a type of sublobar resection, preserves more pulmonary function than is lobectomy. The use of minimally invasive lung segmentectomy for early-stage lung cancer has been increasing. This procedure is associated with technical challenges because (1) it requires a thorough understanding of the complex segmental anatomy that frequently accompanies anomalies, and (2) it is difficult to confirm the location of small tumors during minimally invasive surgery, which makes it difficult to obtain adequate surgical margins. 
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  • 22 Jul 2021
Topic Review
Triple-Negative Breast Cancer and COVID-19
he Coronavirus disease (COVID-19) pandemic has resulted in challenges to cancer management, exacerbated by limited clinical resources and caution in preventing COVID-19 transmission between patients and healthcare professionals. The neglect of breast cancer (in particular, triple-negative breast cancer (TNBC)) patients during the outbreak could negatively impact their overall survival, as delays in treatment and consultations provide vital time for tumor progression and metastasis. Herein, we review the shifting clinical management of TNBCs during the COVID-19 outbreak. The suggested treatment recommendations can hopefully minimize virus exposure without sacrificing patient care during times when healthcare systems are overburdened. Further, we review published RNA-seq data to assess the theoretical infectability of metastatic TNBCs to Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection. 
  • 1.0K
  • 01 Feb 2021
Topic Review
Chemotherapy Resistance
Multidrug resistance is a major factor contributing to the failure of cancer therapy and poor patient outcomes. While apoptosis (apoptotic cell death) is the desired outcome of anti-cancer therapy, chemotherapy and radiation often induce a number of mechanisms that can mediate resistance. p53 is an essential tumor suppressor and stress response protein, modulating multiple cellular responses to therapy. Gain of function (GOF) p53 mutations have been implicated in increased susceptibility to the development of drug resistance, by compromising wild type anti-tumor functions of p53 or modulating key p53 processes that confer chemotherapy resistance, such as autophagy. Autophagy, a conventionally cytoprotective mechanism, is often a “first responder” to chemotherapy (or radiation), by promoting the removal of damaged organelles and preventing excessive accumulation of damaged proteins; thus, autophagy, via its cytoprotectivefunction, may allow tumor cells to evade apoptotic cell death. However, substantial pre-clinical data and inconsistent clinical efficacy of autophagy inhibitors in combination with cancer chemotherapy indicates that autophagy can exhibit multiple functions and does not act solely as a cytoprotective response. Further inquiry relating to the influence of p53 status on autophagic function and its contributions to multidrug resistance will provide valuable insights towards patient response to therapy and the possibility of developing novel therapeutics for chemosensitization in the face of multidrug resistance. 
  • 1.0K
  • 16 Dec 2020
Topic Review
RAB7 Protein
RAB7 is a small guanosine triphosphatase (GTPase) extensively studied as regulator of vesicular trafficking. Indeed, its role is fundamental in several steps of the late endocytic pathway, including endosome maturation, transport from early endosomes to late endosomes and lysosomes, clustering and fusion of late endosomes and lysosomes in the perinuclear region and lysosomal biogenesis. Besides endocytosis, RAB7 is important for a number of other cellular processes among which, autophagy, apoptosis, signaling, and cell migration. Given the importance of RAB7 in these cellular processes, the interest to study the role of RAB7 in cancer progression is widely grown.
  • 1.0K
  • 31 Aug 2021
Topic Review
Implementation of Lutetium-177 Therapy
Peptide receptor radionuclide therapy (PRRT) using Lutetium-177 (177Lu) based radiopharmaceuticals has emerged as a therapeutic area in the field of nuclear medicine and oncology, allowing for personalized medicine. Since the first market authorization in 2018 of [¹⁷⁷Lu]Lu-DOTATATE (Lutathera®) targeting somatostatin receptor type 2 in the treatment of gastroenteropancreatic neuroendocrine tumors, intensive research has led to transfer innovative 177Lu containing pharmaceuticals to the clinic.
  • 1.0K
  • 04 May 2023
Topic Review
Spermine in Prostate Cancer
Spermine, a member of polyamines, exists in all organisms and is essential for normal cell growth and function. It is highly expressed in the prostate compared with other organs and is detectable in urine, tissue, expressed prostatic secretions, and erythrocyte. A significant reduction of spermine level was observed in prostate cancer (PCa) tissue compared with benign prostate tissue, and the level of urinary spermine was also significantly lower in men with PCa. Decreased spermine level may be used as an indicator of malignant phenotype transformation from normal to malignant tissue in prostate.
  • 1.0K
  • 25 May 2021
Topic Review
EGFR Signaling Pathways in Glioma
Epidermal growth factor receptor (EGFR) amplification is a characteristic of the classical subtype of glioma.
  • 1.0K
  • 27 Jan 2021
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