scholarly journals The relevance of Chemistry in Tumor microenvironment of Cancer Patient

2021 ◽  
Vol 23 (11) ◽  
pp. 364-380
Author(s):  
Amisha Gupta ◽  
Keyword(s):  
Tumor Cells ◽  
Development Process ◽  
Tumor Development ◽  
Potential Treatment ◽  
Cancer Genetic ◽  
Large Expansion ◽  
Somatic Gene ◽  
Oncogene Activation ◽  
Mutual Communication ◽  
Tumor Gene

The prime mechanisms for the alteration or reshaping of common somatic gene cells into malignant tumor gene cells are transgenic or oncogene activation and tumor-suppresser gene cell dismission. Cancer genetic cells are the propulsion of growing and expansion. On the other side, they are incapable of developing them self. The wen microhabitat is thought of plays an extra energetic role in Wen improvement than merely existing as a bystander. Wen Cells dexterously enroll connective tissue cells. Through several walkways, which then supply Wen Cells with improved Signs, median metabolites, and a favorable environment for tumor expansion and metastasis. Lymphoma or tumor cells and the microhabitat environment work both will promote large expansion and metathetical potential through mutual communication. Understanding the play of the wen or tumor sensitive small environment in Wen Expansion can direct to new routes to target the Wen Small environment for more efficient anti-tumor medications or cures. In this study, we address the methods involved in Wen or tumor cells enrolling connective cells to the prime tumor place. Along with that it also explained and highlighted the small microhabitats environment and tumor development process. We also mentioned some of the possible potential treatment approaches of cancer treatment which can mighty be helpful for better results.

scholarly journals Interleukin-11-expressing fibroblasts have a unique gene signature correlated with poor prognosis of colorectal cancer

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Takashi Nishina ◽  
Yutaka Deguchi ◽  
Daisuke Ohshima ◽  
Wakami Takeda ◽  
Masato Ohtsuka ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Tumor Cells ◽  
Human Cancer ◽  
Tumor Development ◽  
Gene Signature ◽  
Free Survival ◽  
Expression Of Genes ◽  
Reporter Mice ◽  
Interleukin 11

AbstractInterleukin (IL)-11 is a member of the IL-6 family of cytokines and is involved in multiple cellular responses, including tumor development. However, the origin and functions of IL-11-producing (IL-11+) cells are not fully understood. To characterize IL-11+ cells in vivo, we generate Il11 reporter mice. IL-11+ cells appear in the colon in murine tumor and acute colitis models. Il11ra1 or Il11 deletion attenuates the development of colitis-associated colorectal cancer. IL-11+ cells express fibroblast markers and genes associated with cell proliferation and tissue repair. IL-11 induces the activation of colonic fibroblasts and epithelial cells through phosphorylation of STAT3. Human cancer database analysis reveals that the expression of genes enriched in IL-11+ fibroblasts is elevated in human colorectal cancer and correlated with reduced recurrence-free survival. IL-11+ fibroblasts activate both tumor cells and fibroblasts via secretion of IL-11, thereby constituting a feed-forward loop between tumor cells and fibroblasts in the tumor microenvironment.

scholarly journals Early Detection and Dynamic Changes of Circulating Tumor Cells in Transgenic NeuN Transgenic (NTTg) Mice with Spontaneous Breast Tumor Development

Cancers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 3294
Author(s):  
Wen-Sy Tsai ◽  
Tsung-Fu Hung ◽  
Jia-Yang Chen ◽  
Shu-Huan Huang ◽  
Ying-Chih Chang
Keyword(s):  
Tumor Cells ◽  
Circulating Tumor Cells ◽  
Breast Tumor ◽  
Early Stage ◽  
Tumor Development ◽  
P Value ◽  
Vascular Density ◽  
Dynamic Changes ◽  
Tumor Bearing ◽  
Development Methods

Background: This study used NeuN transgenic (NTTg) mice with spontaneous breast tumor development to evaluate the dynamic changes of circulating tumor cells (CTCs) prior to and during tumor development. Methods: In this longitudinal, clinically uninterrupted study, we collected 75 μL of peripheral blood at the age of 8, 12, 16, and 20 weeks in the first group of five mice, and at the age of 32 weeks, the time of tumor palpability, and one week after tumor palpability in the second group of four mice. Diluted blood samples were run through a modified mouse-CMx chip to isolate the CTCs. Results: The CTC counts of the first group of mice were low (1 ± 1.6) initially. The average CTC counts were 16 ± 9.5, 29.0 ± 18.2, and 70.0 ± 30.3 cells per 75 μL blood at the age of 32 weeks, the time of tumor palpability, and one week after tumor palpability, respectively. There was a significant positive correlation between an increase in CTC levels and tumor vascular density (p-value < 0.01). This correlation was stronger than that between CTC levels and tumor size (p-value = 0.076). The captured CTCs were implanted into a non-tumor-bearing NTTg mouse for xenografting, confirming their viability and tumorigenesis. Conclusion: Serial CTCs during an early stage of tumor progression were quantified and found to be positively correlated with the later tumor vascular density and size. Furthermore, the successful generation of CTC-derived xenografts indicates the tumorigenicity of this early onset CTC population.

scholarly journals Cellular context-dependent consequences of Apc mutations on gene regulation and cellular behavior

2017 ◽  
Vol 114 (4) ◽  
pp. 758-763 ◽  
Author(s):  
Kyoichi Hashimoto ◽  
Yosuke Yamada ◽  
Katsunori Semi ◽  
Masaki Yagi ◽  
Akito Tanaka ◽  
...  
Keyword(s):  
Gene Regulation ◽  
Tumor Cells ◽  
Critical Role ◽  
Tumor Development ◽  
Cell Lineage ◽  
Genetic Rescue ◽  
Cellular Behavior ◽  
Cellular Context ◽  
Context Dependent

The spectrum of genetic mutations differs among cancers in different organs, implying a cellular context-dependent effect for genetic aberrations. However, the extent to which the cellular context affects the consequences of oncogenic mutations remains to be fully elucidated. We reprogrammed colon tumor cells in an ApcMin/+ (adenomatous polyposis coli) mouse model, in which the loss of the Apc gene plays a critical role in tumor development and subsequently, established reprogrammed tumor cells (RTCs) that exhibit pluripotent stem cell (PSC)-like signatures of gene expression. We show that the majority of the genes in RTCs that were affected by Apc mutations did not overlap with the genes affected in the intestine. RTCs lacked pluripotency but exhibited an increased expression of Cdx2 and a differentiation propensity that was biased toward the trophectoderm cell lineage. Genetic rescue of the mutated Apc allele conferred pluripotency on RTCs and enabled their differentiation into various cell types in vivo. The redisruption of Apc in RTC-derived differentiated cells resulted in neoplastic growth that was exclusive to the intestine, but the majority of the intestinal lesions remained as pretumoral microadenomas. These results highlight the significant influence of cellular context on gene regulation, cellular plasticity, and cellular behavior in response to the loss of the Apc function. Our results also imply that the transition from microadenomas to macroscopic tumors is reprogrammable, which underscores the importance of epigenetic regulation on tumor promotion.

scholarly journals Strategies to Interfere with Tumor Metabolism through the Interplay of Innate and Adaptive Immunity

Cells ◽  
2019 ◽  
Vol 8 (5) ◽  
pp. 445 ◽  
Author(s):  
Javier Mora ◽  
Christina Mertens ◽  
Julia K. Meier ◽  
Dominik C. Fuhrmann ◽  
Bernhard Brüne ◽  
...  
Keyword(s):  
Tumor Growth ◽  
Tumor Cells ◽  
Immune Cells ◽  
Tumor Development ◽  
Metabolic Activation ◽  
Growth And Survival ◽  
Metabolic Characteristics ◽  
Inflammatory Phenotype ◽  
Tumor Outgrowth

The inflammatory tumor microenvironment is an important regulator of carcinogenesis. Tumor-infiltrating immune cells promote each step of tumor development, exerting crucial functions from initiation, early neovascularization, to metastasis. During tumor outgrowth, tumor-associated immune cells, including myeloid cells and lymphocytes, acquire a tumor-supportive, anti-inflammatory phenotype due to their interaction with tumor cells. Microenvironmental cues such as inflammation and hypoxia are mainly responsible for creating a tumor-supportive niche. Moreover, it is becoming apparent that the availability of iron within the tumor not only affects tumor growth and survival, but also the polarization of infiltrating immune cells. The interaction of tumor cells and infiltrating immune cells is multifaceted and complex, finally leading to different activation phenotypes of infiltrating immune cells regarding their functional heterogeneity and plasticity. In recent years, it was discovered that these phenotypes are mainly implicated in defining tumor outcome. Here, we discuss the role of the metabolic activation of both tumor cells and infiltrating immune cells in order to adapt their metabolism during tumor growth. Additionally, we address the role of iron availability and the hypoxic conditioning of the tumor with regard to tumor growth and we describe the relevance of therapeutic strategies to target such metabolic characteristics.

scholarly journals Evolution of sarcoma 180 in mice infected with Trypanosoma cruzi

1983 ◽  
Vol 78 (3) ◽  
pp. 237-244
Author(s):  
Fausto Edmundo Lima Pereira ◽  
William Assad Sassine ◽  
Dimith Chequer Bouhabib ◽  
Elton de Almeida Lucas
Keyword(s):  
Weight Gain ◽  
Trypanosoma Cruzi ◽  
Tumor Cells ◽  
Ascitic Fluid ◽  
Tumor Development ◽  
Sarcoma 180 ◽  
Tumor Inoculation ◽  
Time Intervals ◽  
Tumor Challenge ◽  
Ascites Formation

Mice infected with Trypanosoma cruzi were challenged with 2x10[raised to the power of 6] cells of sarcoma 180 (ascite tumor) by i.p. route, on day seven post infection. Tumor development was followed by evaluation of weight gain, by measurement of ascitic fluid produced and enumeration of tumor cells in ascitic fluid. Infected mice were more resitant to tumor development as demonstrated by reduction in ascites formation and by reduction in the number of tumor cells in ascitic fluid, at different time intervals after tumor challenge. The number of peritoneal cells exsudated after tumor inoculation was greater in infected mice than in controls. This increased resitance of mice infected with T. cruzi to tumor development could be due to the action of macrophages activated by the infection and by the action of endotoxins absorbed from the gut or produced by the own parasite.

scholarly journals Role of tumor gene mutations in treatment response to immune checkpoint blockades

2019 ◽  
Vol 2 (2) ◽  
pp. 100-109 ◽  
Author(s):  
Manni Wang ◽  
Liu Yu ◽  
Xiawei Wei ◽  
Yuquan Wei
Keyword(s):  
Gene Expression ◽  
Treatment Response ◽  
Cancer Patients ◽  
Tumor Cells ◽  
Immune Checkpoint ◽  
Gene Mutations ◽  
Immune Checkpoint Blockade ◽  
Recent Developments ◽  
Tumor Gene

AbstractEarly studies shed light on the immune suppression of immune checkpoint molecules in the cancer microenvironment, with later studies applying immune checkpoint blockade (ICB) in treatment of various malignancies. Despite the encouraging efficacy of ICBs in a substantial subset of cancer patients, the treatment response varies. Gene mutations of both tumor cells and immune cells in the tumor microenvironment have recently been identified as potential predictors of the ICB response. Recent developments in gene expression profiling of tumors have allowed identification of a panel of mutated genes that may affect tumor cell response to ICB treatment. In this review, we discuss the association of the ICB response with gene expression and mutation profiles in tumor cells, which it is hoped will help to optimize the clinical application of ICBs in cancer patients.

scholarly journals AN OVERVIEW OF COLORECTAL CANCER: IMPLICATION OF TWO MEDICINAL PLANTS IN THEIR TREATMENT

2019 ◽  
pp. 47-52
Author(s):  
JYOTHI BASINI ◽  
SIREESHA RAYADURGAM ◽  
SWETHA DAKSHINAMURTHY
Keyword(s):  
Colorectal Cancer ◽  
Side Effects ◽  
Medicinal Plants ◽  
Development Process ◽  
Sedentary Lifestyle ◽  
Tumor Development ◽  
Therapeutic Agents ◽  
Endemic Plant ◽  
Natural Origin ◽  
Traditional Medicinal Plants

Nowadays, cancer is one of the most common diseases in humans. Among all types, colorectal cancer (CRC) is one of the most serious types diagnosed in men after lung and prostate cancer while in women it occupies the second position after breast cancer worldwide. The risk factors such as obesity, sedentary lifestyle, bad nutritional habits (high in fats and proteins), smoking, and progressive aging are the cause of CRC. The acquisition of abnormal mutations leads to a consisting of many different arrangements of events during the tumor development process. Over the years, different approaches have been employed, in the treatment of cancer. These include chemotherapy, radiotherapy, surgery, and immunotherapy. Chemotherapy is routinely used for cancer treatment, but the toxicity of chemotherapeutics on healthy cells of the human body is obvious. This is the reason for discovering the new, natural origin, substances with potential cytostatic effects and less toxic side effects on the healthy cells. Medicinal plants have a special place in the management of cancer. Numerous cancer research studies have been conducted using traditional medicinal plants to discover new therapeutic agents with fewer side effects. In this review, we are describing two medicinal plants such as Actiniopteris radiata (Sw.) Link (Mayurashikha) and Terminalia pallida Brandis (Tella karaka) (endemic plant) which are available immensely in Chittoor District are used till today by the traditional herbal practitioners, tribal people is near to Talakona forest and Ayurvedic people for various diseases and also for CRC.

scholarly journals The Roles of Stroma-Derived Chemokine in Different Stages of Cancer Metastases

2020 ◽  
Vol 11 ◽  
Author(s):  
Shahid Hussain ◽  
Bo Peng ◽  
Mathew Cherian ◽  
Jonathan W. Song ◽  
Dinesh K. Ahirwar ◽  
...  
Keyword(s):  
Tumor Microenvironment ◽  
Tumor Cells ◽  
Cancer Progression ◽  
Tumor Development ◽  
Inflammatory Cells ◽  
Host Cells ◽  
Metastatic Niche ◽  
Cancer Pathogenesis ◽  
Cancer Metastases ◽  
Cellular Components

The intricate interplay between malignant cells and host cellular and non-cellular components play crucial role in different stages of tumor development, progression, and metastases. Tumor and stromal cells communicate to each other through receptors such as integrins and secretion of signaling molecules like growth factors, cytokines, chemokines and inflammatory mediators. Chemokines mediated signaling pathways have emerged as major mechanisms underlying multifaceted roles played by host cells during tumor progression. In response to tumor stimuli, host cells-derived chemokines further activates signaling cascades that support the ability of tumor cells to invade surrounding basement membrane and extra-cellular matrix. The host-derived chemokines act on endothelial cells to increase their permeability and facilitate tumor cells intravasation and extravasation. The tumor cells-host neutrophils interaction within the vasculature initiates chemokines driven recruitment of inflammatory cells that protects circulatory tumor cells from immune attack. Chemokines secreted by tumor cells and stromal immune and non-immune cells within the tumor microenvironment enter the circulation and are responsible for formation of a “pre-metastatic niche” like a “soil” in distant organs whereby circulating tumor cells “seed’ and colonize, leading to formation of metastatic foci. Given the importance of host derived chemokines in cancer progression and metastases several drugs like Mogamulizumab, Plerixafor, Repertaxin among others are part of ongoing clinical trial which target chemokines and their receptors against cancer pathogenesis. In this review, we focus on recent advances in understanding the complexity of chemokines network in tumor microenvironment, with an emphasis on chemokines secreted from host cells. We especially summarize the role of host-derived chemokines in different stages of metastases, including invasion, dissemination, migration into the vasculature, and seeding into the pre-metastatic niche. We finally provide a brief description of prospective drugs that target chemokines in different clinical trials against cancer.

Changes in cytokine production and morphology of murine lymphoma NK/Ly cells in course of tumor development

2007 ◽  
Vol 2 (1) ◽  
pp. 71-86 ◽  
Author(s):  
Rostyslav Panchuk ◽  
Natalia Boiko ◽  
Maxim Lootsik ◽  
Rostyslav Stoika
Keyword(s):  
Tumor Growth ◽  
Tumor Cells ◽  
Ascitic Fluid ◽  
Tumor Development ◽  
Pcr Analysis ◽  
Vegf Mrna ◽  
Lymphoma Cells ◽  
Extracellular Medium ◽  
Enhanced Production ◽  
Ifn Γ

AbstractThe main goal of this study was to evaluate if specific cytokine expression in the NK/Ly lymphoma cells might be involved in development of intoxication in the tumor-bearing animals. RT-PCR analysis was used to study an expression of mRNA coding for IL-1α, IL-6, TNF-α, TNF-β and VEGF. ELISA was used to evaluate IL-6 and IFN-γ concentration in the ascitic fluid. Cytomorphological investigation of tumor cells was done after standard Romanovsky-Giemsa staining, and chromatin staining was performed with hematoxyline and neutral red. Lactate dehydrogenase and acid phosphatase release from tumor cells was estimated. It was revealed that the level of mRNA coding for VEGF and IL-6 was significant in the lymphoma cells. The level of VEGF mRNA was initially high and did not change during tumor progression, while the level of expression of IL6 mRNA was low at the initial stages of tumor growth and markedly increased (up to 5-fold) at the terminal stages. The obtained data on IL-6 mRNA expression were confirmed by ELISA, which showed more than 6-fold increase (from 90 to 570 pg/ml) in the IL-6 concentration in the ascitic fluid at late stages of NK/Ly tumor development. On the contrary to IL-6, concentration of IFN-γ in the ascitic fluid was very high at early stages of tumor development (1,000 pg/ml) and it markedly decreased (up to 30-fold, 30 pg/ml) at the terminal stages of tumor development. The high levels of IL-6 mRNA in tumor cells and IL-6 content in extracellular medium correlated with cell deterioration, as revealed by cytomorphologic study and the release of intracellular enzymes into extracellular medium. We suggest that an enhanced production and release of IL-6 by lymphoma cells can cause intoxication and exhaustion of the organism observed at terminal stages of tumor growth.

scholarly journals Advances in Proteomic Technologies and Its Contribution to the Field of Cancer

2014 ◽  
Vol 2014 ◽  
pp. 1-25 ◽  
Author(s):  
Mehdi Mesri
Keyword(s):  
Basic Science ◽  
Tumor Development ◽  
Treatment Strategies ◽  
Science Research ◽  
Biological Processes ◽  
Cancer Genes ◽  
Cancer Genetic ◽  
Care Plans ◽  
The Past ◽  
To Come

Systematic studies of the cancer genome have generated a wealth of knowledge in recent years. These studies have uncovered a number of new cancer genes not previously known to be causal targets in cancer. Genetic markers can be used to determine predisposition to tumor development, but molecularly targeted treatment strategies are not widely available for most cancers. Precision care plans still must be developed by understanding and implementing basic science research into clinical treatment. Proteomics is continuing to make major strides in the discovery of fundamental biological processes as well as more recent transition into an assay platform capable of measuring hundreds of proteins in any biological system. As such, proteomics can translate basic science discoveries into the clinical practice of precision medicine. The proteomic field has progressed at a fast rate over the past five years in technology, breadth and depth of applications in all areas of the bioscience. Some of the previously experimental technical approaches are considered the gold standard today, and the community is now trying to come to terms with the volume and complexity of the data generated. Here I describe contribution of proteomics in general and biological mass spectrometry in particular to cancer research, as well as related major technical and conceptual developments in the field.

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