Cancer originates from genetic mutations accumulation. Cancer stem cells have been depicted as tumorigenic cells that can differentiate and self-renew. Cancer stem cells are thought to be resistant to conventional therapy like chemotherapy and radiation therapy. Radiation therapy and chemotherapy damage carcinomic DNA cells. Because of the ability of cancer stem cells to self-renew and reproduce malignant tumors, they are the subject of intensive research. In this review, CSCs radioresistant mechanisms which include DNA damage response and natural radiosensitizers have been summed up. Reactive oxygen species play an important role in different physiological processes. ROS scavenging is responsible for regulation of reactive oxygen species generation. A researcher has proved that microRNAs regulate tumor radiation resistance. Ionizing radiation does not kill the cancer cells; rather, IR just slows down the signs and symptoms. Ionizing radiation damages DNA directly/indirectly. IR is given mostly in combination with other chemo/radiotherapies. We briefly described here the behavior of cancer stem cells and radioresistance therapies in cancer treatment. To overcome radioresistance in treatment of cancer, strategies like fractionation modification, treatment in combination, inflammation modification, and overcoming hypoxic tumor have been practiced. Natural radiosensitizers, for example, curcumin, genistein, and quercetin, are more beneficial than synthetic compounds.

BackgroundOvarian cancer is the 5th most common cause of deaths in the women among gynecological tumors. There are many growing evidences that stress and other behavioral factors may affect cancer progression and patient survival. The purpose of this study is to determine the key role of matrix metalloproteinases (MMPs), and cytokines in the aggregation and progression of ovarian cancer.MethodologyStress variables (MDA, AGEs, AOPPs, NO), profile of antioxidants (SOD, Catalase, Vitamin E & A, GSH, GRx, GPx) and inflammatory biomarkers (MMP-9, MMP-2, MMP-11, IL-1α and TNF-α) were biochemically assessed from venous blood of fifty ovarian cancer patients and twenty healthy control subjects. The results of all parameters were analyzed statistically by independent sample t-test.ResultsThe results of the study demonstrated that the levels of stress variables like MDA (3.38±1.12nmol/ml), AGEs (2.72±0.22 ng/ml), AOPPs (128.48±27.23 ng/ml) and NO (58.71±8.67 ng/ml) were increased in the patients of ovarian cancer as compared to control individuals whereas the profile of antioxidants like SOD, Catalase, Vitamin E, Vitamin A, GSH and GRx were decreased in ovarian cancer patients (0.11±0.08 μg/ml, 2.41±1.01μmol/mol of protein, 0.22±0.04 μg/ml, 45.84±9.07μg/ml, 4.88±1.18μg/ml, 5.33±1.26 μmol/ml respectively). But the level of GPx antioxidant was increased in ovarian cancer patients (6.58±0.21μmol/ml). Moreover the levels of MMP-9 (64.87±5.35 ng/ml), MMP-2 (75.87±18.82 ng/ml) and MMP-11 (63.58±8.48 ng/ml) were elevated in the patients. Similarly, the levels of various cytokines TNF-α and IL-1α were also increased in the patients of ovarian cancer (32.17±3.52 pg/ml and 7.04±0.85 pg/ml respectively).ConclusionMMPs are commonly expressed in ovarian cancer which are potential extrapolative biomarkers and have a major role in metastasis. Due to oxidative stress, different cytokines are released by tumor associated macrophages (TAMs) that result in the cancer progression. Consequently, tissue inhibitors of matrix metalloproteinases (TIMPs) are the valuable therapeutic approaches to complement conservative anticancer strategies.

Introduction: Diabetes mellitus (DM), a metabolic syndrome with abnormality in metabolism of carbohydrates, protein and lipids, and characterized by absolute and relative deficiency of insulin secretion. DM leads to its most common and frequent complication- Diabetic kidney disease. Oxidative stress induced by decreased antioxidant defenses and/or increased free radical formation are involved in causative factor and disease in diabetics, is an evidence-based study. Materials and Methods: Place of Study: This studied group consisted of 100 subjects with diabetic nephropathy recruited from Jinnah hospital Lahore. Study Design: A comparative Clinical study. Objectives: The present study was designed to investigate the key processes involved in the development of diabetic nephropathy. Population size: total 100 patients were selected Data collection procedure: Five ml of venous blood sample was taken from the antecubital vein of each participant. The sample bottles were centrifuged within one hour of collection, after which the serum was separated and stored at -70°C until assayed. The subjects with the history of taking drugs (Including alcohol and cigarette), pre-diagnosis medications (e.g. antiparkinsonian/antipsychotic), were excluded from this study. Data Analysis Plan: Results were analyzed through T test by using SPSS version 16. Results: Hematological profile of diabetic nephropathy patients were observed. Abnormal changes were found in platelet count and lymphocytes predicting coagulation and inflammation inside body. Antioxidants (SOD, CAT, GSH-GPx) and vitamins (A, E, C, D) were decreased. Oxidative markers and inflammatory markers such as MDA, MPO, and AOPPs were found to be increased. Practical Implication: Present study will bring a positive change in the field of diabetology and will bring ease in the life of patients in the community . Conclusion: Owing to present facts it is clear that hyperglycemia activates the various signaling pathways and reactive oxygen species (ROS) formation, which further activates signaling cascades which causes the structural and functional alterations in kidney that enhance the complications associated with diabetic nephropathy. Keywords: Diabetic kidney disease, Oxidative stress, Reactive oxygen species, Antioxidants, AOPPs

Background: Ovarian cancer (OC) is a worst type of malignancy in the field of gynecology. This is because ovarian tumors diagnosed at advanced stage of disease. The exact mechanism for its development is still unknown. Aim: The aim of this study is to measure the levels of steroidal hormones and their function in ovarian cancer progression. Methods: In the present study, fifty ovarian cancer patients and fifty control individuals were taken and serum was separated from their blood samples. The levels of steroid hormones were measured by ELISA kit methods. Results: Result of the current study determined the levels of E2, progesterone, testosterone, FSH, LH, 17-β-HSD-I, 17-β-HSD-II, cortisol and aromatase were extensively higher in patient group in comparison with healthy individuals. Conclusion: Current study concluded the Study concluded that overexpression of steroid hormones may lead to enhance tumor survival in ovarian cancer through various signaling mechanisms. Keywords: Ovarian cancer, Estradiol, FSH, LH, progesterone

The bacterial pathogens have established various defense system against antimicrobial agents. The main mechanism of action of antibiotic resistance is obtained by pathogenic microorganisms, which directly involved in the diagnosis of various therapeutic plants with their significant antimicrobial properties. The current study investigated the antimicrobial and anticancer properties of Carica papaya. Fresh sample of C. papaya was collected in the native area of Punjab and selected isolate were tested against the aqueous, chloroform, ethanol, methanol extracts of C. papaya and anti-microbial activity by disc diffusion method. Anticancer activity was carried out in the HeLa cell line in above mention fractions of the extract at different concentration. The present study concluded, the extracts of the specific plants, particularly the ethanol and methanol extracts established the potential role against bacterial strain and HeLa cell line. It has also been concluded that these extracts might be implicated as natural products and serve to mediate as novel pharmaceuticals and therapeutic drugs.