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1.
Integr Cancer Ther ; 19: 1534735420940398, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32975128

RESUMEN

Studies have demonstrated that purported biofield therapy emitted from humans can inhibit the proliferation of cancer cells and suppress tumor growth in various cancers. We explored the effects of biofield therapy on tumor growth in the Lewis lung carcinoma and expanded mechanistic outcomes. We found biofield therapy did not inhibit tumor growth. However, the experimental (Ex) condition exposed tumors had a significantly higher percentage of necrosis (24.4 ± 6.8%) compared with that of the Control condition (6.5 ± 2.7%; P < .02) and cleaved caspase-3 positive cells were almost 2.3-fold higher (P < .05). Similarly, tumor-infiltrating lymphocytes profiling showed that CD8+/CD45+ immune cell population was significantly increased by 2.7-fold in Ex condition (P < .01) whereas the number of intratumoral FoxP3+/CD4+ (T-reg cells) was 30.4% lower than that of the Control group (P = .01), leading to a significant 3.1-fold increase in the ratio of CD8+/T-reg cells (P < .01). Additionally, there was a 51% lower level of strongly stained CD68+ cells (P < .01), 57.9% lower level of F4/80high/CD206+ (M2 macrophages; P < .02) and a significant 1.8-fold increase of the ratio of M1/M2 macrophages (P < .02). Furthermore, Ex exposure resulted in a 15% reduction of stem cell marker CD44 and a significant 33% reduction of SOX2 compared with that of the Controls (P < .02). The Ex group also engaged in almost 50% less movement throughout the session than the Controls. These findings suggest that exposure to purported biofields from a human is capable of enhancing cancer cell death, in part mediated through modification of the tumor microenvironment and stemness of tumor cells in mouse Lewis lung carcinoma model. Future research should focus on defining the optimal treatment duration, replication with different biofield therapists, and exploring the mechanisms of action.


Asunto(s)
Carcinoma , Neoplasias Pulmonares , Animales , Humanos , Pulmón , Neoplasias Pulmonares/terapia , Linfocitos Infiltrantes de Tumor , Ratones , Microambiente Tumoral
2.
Integr Cancer Ther ; 18: 1534735419840797, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30947564

RESUMEN

Biofield therapies have gained popularity and are being explored as possible treatments for cancer. In some cases, devices have been developed that mimic the electromagnetic fields that are emitted from people delivering biofield therapies. However, there is limited research examining if humans could potentially inhibit the proliferation of cancer cells and suppress tumor growth through modification of inflammation and the immune system. We found that human NSCLC A549 lung cancer cells exposed to Sean L. Harribance, a purported healer, showed reduced viability and downregulation of pAkt. We further observed that the experimental exposure slowed growth of mouse Lewis lung carcinoma evidenced by significantly smaller tumor volume in the experimental mice (274.3 ± 188.9 mm3) than that of control mice (740.5 ± 460.2 mm3; P < .05). Exposure to the experimental condition markedly reduced tumoral expression of pS6, a cytosolic marker of cell proliferation, by 45% compared with that of the control group. Results of reversed phase proteomic array suggested that the experimental exposure downregulated the PD-L1 expression in the tumor tissues. Similarly, the serum levels of cytokines, especially MCP-1, were significantly reduced in the experimental group ( P < .05). Furthermore, TILs profiling showed that CD8+/CD4- immune cell population was increased by almost 2-fold in the experimental condition whereas the number of intratumoral CD25+/CD4+ (T-reg cells) and CD68+ macrophages were 84% and 33%, respectively, lower than that of the control group. Together, these findings suggest that exposure to purported biofields from a human is capable of suppressing tumor growth, which might be in part mediated through modification of the tumor microenvironment, immune function, and anti-inflammatory activity in our mouse lung tumor model.


Asunto(s)
Carcinoma/patología , Proliferación Celular/fisiología , Neoplasias Pulmonares/patología , Células A549 , Animales , Biomarcadores de Tumor/metabolismo , Carcinoma/metabolismo , Carcinoma de Pulmón de Células no Pequeñas/metabolismo , Carcinoma de Pulmón de Células no Pequeñas/patología , Citocinas/metabolismo , Humanos , Pulmón/metabolismo , Pulmón/patología , Neoplasias Pulmonares/metabolismo , Macrófagos/metabolismo , Macrófagos/patología , Masculino , Ratones , Ratones Endogámicos C57BL , Linfocitos T Reguladores/metabolismo , Linfocitos T Reguladores/patología , Microambiente Tumoral/fisiología
3.
Cancer Res ; 76(1): 24-9, 2016 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-26729790

RESUMEN

Epidemiologic studies have shown that dietary sugar intake has a significant impact on the development of breast cancer. One proposed mechanism for how sugar impacts cancer development involves inflammation. In the current study, we investigated the impact of dietary sugar on mammary gland tumor development in multiple mouse models, along with mechanisms that may be involved. We found that sucrose intake in mice comparable with levels of Western diets led to increased tumor growth and metastasis, when compared with a nonsugar starch diet. This effect was ascribed in part to increased expression of 12-lipoxygenase (12-LOX) and its arachidonate metabolite 12-hydroxy-5Z,8Z,10E,14Z-eicosatetraenoic acid (12-HETE). We determined that fructose derived from the sucrose was responsible for facilitating lung metastasis and 12-HETE production in breast tumors. Overall, our data suggested that dietary sugar induces 12-LOX signaling to increase risks of breast cancer development and metastasis.


Asunto(s)
Araquidonato 12-Lipooxigenasa/metabolismo , Neoplasias de la Mama/metabolismo , Neoplasias de la Mama/patología , Carcinogénesis/metabolismo , Sacarosa en la Dieta/toxicidad , Glándulas Mamarias Animales/metabolismo , Glándulas Mamarias Animales/patología , Animales , Neoplasias de la Mama/enzimología , Línea Celular Tumoral , Dieta , Femenino , Xenoinjertos , Humanos , Glándulas Mamarias Animales/enzimología , Neoplasias Mamarias Experimentales/enzimología , Neoplasias Mamarias Experimentales/metabolismo , Neoplasias Mamarias Experimentales/patología , Ratones , Distribución Aleatoria , Factores de Riesgo , Transducción de Señal
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