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Topic Review
Biography
Peer Reviewed Entry
Video Entry
Topic Review
Deep Learning for Classification of Skin Cancer
One of the major health concerns for human society is skin cancer. When the pigments producing skin color turn carcinogenic, this disease gets contracted. A skin cancer diagnosis is a challenging process for dermatologists as many skin cancer pigments may appear similar in appearance. Hence, early detection of lesions (which form the base of skin cancer) is definitely critical and useful to completely cure the patients suffering from skin cancer. Significant progress has been made in developing automated tools for the diagnosis of skin cancer to assist dermatologists. The worldwide acceptance of artificial intelligence-supported tools has permitted usage of the enormous collection of images of lesions and benevolent sores approved by histopathology.
1.5K
13 Dec 2021
Topic Review
Wild-type IDH Enzymes
Isocitrate dehydrogenases (IDHs) are enzymes that catalyze the oxidative decarboxylation of isocitrate, producing α-ketoglutarate (αKG) and CO2. The discovery of IDH mutations in several malignancies has led to a better characterization of IDHs involvement in tumorigenesis and the approval of drugs targeting IDH1/2 mutants in cancers. Nevertheless, less is known about the impact of IDH mutants in rare pathologies or the relevance of non-mutated IDH enzymes in cancers. Here, we provide a brief overview of the impact of IDHs enzymes as potential therapeutic targets.
1.5K
30 Oct 2020
Topic Review
CBL Mutations
CBL mutations are progressively being described as involved in different clinical manifestations. Somatic CBL mutations can be found in different type of cancer. The clinical spectrum of germline mutations configures the so-called CBL syndrome, a cancer-predisposing condition that includes multisystemic involvement characterized by variable phenotypic expression and expressivity.
1.5K
24 Feb 2022
Topic Review
Triple-Negative Breast Cancer and Brain-Metastasis
A higher propensity of developing brain metastasis exists in triple-negative breast cancer (TNBC). Upon comparing the metastatic patterns of all breast cancer subtypes, patients with TNBC exhibited increased risks of the brain being the initial metastatic site, early brain metastasis development, and shortest brain metastasis-related survival. Notably, the development of brain metastasis differs from that at other sites owing to the brain-unique microvasculature (blood brain barrier (BBB)) and intracerebral microenvironment. Studies of brain metastases from TNBC have revealed the poorest treatment response, mostly because of the relatively backward strategies to target vast disease heterogeneity and poor brain efficacy. Moreover, TNBC is highly associated with the existence of cancer stem cells (CSCs), which contribute to circulating cancer cell survival before BBB extravasation, evasion from immune surveillance, and plasticity in adaptation to the brain-specific microenvironment. We summarized recent literature regarding molecules and pathways and reviewed the effects of CSC biology during the formation of brain metastasis in TNBC.
1.5K
30 Oct 2020
Topic Review
Fungi-Derived β-Glucan on Tumor Progression
β-Glucans have been studied in animal species, from earthworms to humans. They form a heterogenous group of glucose polymers found in fungi, plants, bacteria, and seaweed. β-Glucans have slowly emerged as an important target for the recognition of pathogens.
1.4K
23 Jun 2021
Topic Review
DNA Damage Repair for Cancer
DDR is activated in response to different endogenous and exogenous stresses(). When aberrantly repaired, DNA damage might be associated with clinical outcomes such as neurodegeneration, infertility, and genomic instability, being a key contributing factor to neoplastic transformation and tumour development(). Due to the complexity underneath detection and repair of DNA damage, cells evolved an intricate DDR network that, together with cell cycle regulation, promotes the maintenance of genomic stability and cellular viability().
1.4K
02 Aug 2021
Topic Review
Protein Subcellular Localization
Proteins are localized into different cellular compartments and sub-compartments inside the cell. Each subcellular compartment has a distinct well-defined function in the cell and has a characteristic physicochemical environment, which drives proper functioning of the proteins. Each subcellular compartment has a distinct, well defined function in the cell and is considered to have evolved from the prokaryotic cell. Typical eukaryotic cells have two types of DNAs (i) chromosomal nuclear DNA and (ii) organelle DNA, which is present in mitochondria and chloroplast while prokaryotic cells have only single type of DNA called nucleoid.
1.4K
18 Feb 2021
Topic Review
Lipid-Based Nanoparticles for Encapsulation of Anticancer Alkaloids
Alkaloids are natural products that possess numerous pharmacological activities and have been exploited effectively to treat cancer. However, the clinically approved anticancer alkaloids are generally limited by serious side effects due to their lack of specificity to cancer cells, indiscriminate tissue distribution and toxic formulation excipients. Lipid-based nanoparticles represent the most effective drug delivery system concerning clinical translation owing to their unique appealing characteristics for drug delivery.
1.4K
11 Nov 2021
Topic Review
The Modified Phenanthridine PJ34
This entry summarizes recent data disclosing the efficacy of the modified phenanthridine PJ34 in exclusive eradication of a variety of human cancer cells without impairing healthy proliferating cells. Its cytotoxic activity in cancer cells is attributed to the insertion of specific un-repairable anomalies in the structure of their mitotic spindle, leading to mitotic catastrophe cell death.
1.4K
19 Sep 2020
Topic Review
B-cell non-Hodgkin lymphoma
The term B-cell non-Hodgkin lymphoma (B-NHL) encompasses different neoplasms characterized by an abnormal proliferation of lymphoid B cells.
1.4K
13 Jan 2022
Topic Review
Autotaxin (ATX) in Breast Cancer
This entry deals with the role of the secreted enzyme, autotaxin (ATX), in the progression of breast cancer. ATX produces lysophosphatidate (LPA), which signals through six G-protein coupled receptors, promoting tumor growth, metastasis, immune evasion and survival from chemotherapy and radiotherapy. Many cancer cells produce ATX, but breast cancer cells express little ATX. Instead, in breast cancer, ATX is produced by tumor-associated stroma. Breast tumors are also surrounded by adipose tissue, which is a major bodily source of ATX. In mice, a high-fat human type diet increases ATX production in adipocytes. ATX production in obesity is also increased because of low-level inflammation in the expanded adipose tissue. This increased ATX secretion and consequent LPA signaling is associated with decreased adiponectin production, which results in adverse metabolic profiles and glucose homeostasis. Increased ATX production by inflamed adipose tissue could contribute to the association between obesity and breast cancer. This would result from the cross talk between breast tumors and adjacent adipose tissue. Breast tumors produce inflammatory mediators that stimulate ATX transcription in adipocytes adjacent to the tumors. This drives a feedforward inflammatory cycle since increased LPA signaling increases the production of more inflammatory cytokines/chemokines and cyclooxygenase-2 resulting in more ATX secretion. This cycle is typical of a wound healing response, which in the case of cancers become maladaptive. Thus, inhibiting ATX activity derived from adipocytes and/or tumor stromal cells has implications as an adjuvant for breast cancer treatments by attenuating the inflammatory cycle. Targeting ATX activity and LPA signaling could potentially increase the efficacy of chemotherapy and radiotherapy independently of the breast cancer type because most ATX is not derived from breast cancer cells. Blocking ATX activity and LPA signaling could also decrease morbidity from radiation-induced fibrosis.
1.4K
30 Oct 2020
Topic Review
Complement System Activation and Functions
The complement system is an essential component of innate immunity. Acting as a first line of defence, the complement system recognises and aids in the elimination of pathogens. Complement proteins also play key roles in homeostasis and they support the inductive of the adaptive immune response.
1.4K
23 Mar 2021
Topic Review
Microbiota for HPV Infection
The microbiome is able to modulate immune responses, alter the physiology of the human organism, and increase the risk of viral infections and development of diseases such as cancer. Herein, we address changes in the cervical microbiota as potential biomarkers to identify the risk of cervical intraepithelial neoplasia (CIN) development and invasive cervical cancer in the context of human papillomavirus (HPV) infection.
1.4K
30 Oct 2020
Topic Review
Local Anesthesia in Cancer Surgeries
The application of local anaesthetics is frequently involved in anaesthesia in the surgical treatment of various cancers. It is used in addition to or instead of general anaesthesia as a way to provide control of sensation and pain to specific regions or parts of the patients' bodies. They are thought to reduce the requirement for volatile anaesthetics and opioids used in the surgery.
1.4K
28 Feb 2021
Topic Review
Rhenium(I) Tricarbonyl Complexes As Photosensitisers
Photodynamic therapy (PDT) is emerging as a significant complementary or alternative approach for cancer treatment. Re(I) tricarbonyl complexes is a new generation of metal-based photosensitisers for PDT that are of great interest in multidisciplinary research.
1.4K
27 Oct 2020
Topic Review
DUBs Activating Hedgehog Signaling Pathway
The Hedgehog (HH) pathway governs cell proliferation and patterning during embryonic development and is involved in regeneration, homeostasis and stem cell maintenance in adult tissues. The activity of this signaling is finely modulated at multiple levels and its dysregulation contributes to the onset of several human cancers. Ubiquitylation is a coordinated post-translational modification that controls a wide range of cellular functions and signaling transduction pathways. It is mediated by a sequential enzymatic network, in which ubiquitin ligase (E3) and deubiquitylase (DUBs) proteins are the main actors. The dynamic balance of the activity of these enzymes dictates the abundance and the fate of cellular proteins, thus affecting both physiological and pathological processes. Several E3 ligases regulating the stability and activity of the key components of the HH pathway have been identified. Further, DUBs have emerged as novel players in HH signaling transduction, resulting as attractive and promising drug targets.
1.4K
04 Feb 2021
Topic Review
Pediatric Medulloblastoma
Medulloblastoma is the most common pediatric brain tumor, comprising one-third of all pediatric brain tumors, and originating in the posterior fossa of the brain. The disease is categorized into four subtypes: WNT, Sonic hedgehog (SHH), Group 3, and Group 4. Each subtype has unique pathogenesis, biomarkers, prognosis, response to therapy, and potential for further pharmacologic investigation.
1.4K
01 Sep 2022
Topic Review
Metformin
Metformin is a metabolic modulator widely used to treat type II diabetes and metabolic syndrome patients. It shows a safe profile and its use in additional indications, such as cancer, is an important matter of investigation.
1.4K
09 Dec 2020
Topic Review
NK Cells in Cancer Therapy
Cellular therapy has emerged as an attractive option for the treatment of cancer, and adoptive transfer of chimeric antigen receptor (CAR) expressing T cells has gained FDA approval in hematologic malignancy. However, limited efficacy was observed using CAR-T therapy in solid tumors. Natural killer (NK) cells are crucial for tumor surveillance and exhibit potent killing capacity of aberrant cells in an antigen-independent manner. Adoptive transfer of unmodified allogeneic or autologous NK cells has shown limited clinical benefit due to factors including low cell number, low cytotoxicity and failure to migrate to tumor sites. To address these problems, immortalized and autologous NK cells have been genetically engineered to express high affinity receptors (CD16), CARs directed against surface proteins (PD-L1, CD19, Her2, etc.) and endogenous cytokines (IL-2 and IL-15) that are crucial for NK cell survival and cytotoxicity, with positive outcomes reported by several groups both preclinically and clinically. With a multitude of NK cell-based therapies currently in clinic trials, it is likely they will play a crucial role in next-generation cell therapy-based treatment. In this review, we will highlight the recent advances and limitations of allogeneic, autologous and genetically enhanced NK cells used in adoptive cell therapy.
1.4K
30 Oct 2020
Topic Review
Prostaglandin E2 and cancer
The involvement of inflammation in cancer progression has been the subject of research for many years. Inflammatory milieu and immune response are associated with cancer progression and recurrence. In different types of tumors, growth and metastatic phenotype characterized by the epithelial mesenchymal transition (EMT) process, stemness, and angiogenesis, are increasingly associated with intrinsic or extrinsic inflammation. Among the inflammatory mediators, prostaglandin E2 (PGE2) supports epithelial tumor aggressiveness by several mechanisms, including growth promotion, escape from apoptosis, transactivation of tyrosine kinase growth factor receptors, and induction of angiogenesis. Moreover, PGE2 is an important player in the tumor microenvironment, where it suppresses antitumor immunity and regulates tumor immune evasion, leading to increased tumoral progression.
1.4K
11 Dec 2020
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