Nobuto Yamamoto's research while affiliated with Treatment Research Institute, Philadelphia PA and other places
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Publications (23)
Serum vitamin D binding protein (Gc protein) is the precursor for the principal macrophage-activating factor (MAF). The MAF precursor activity of serum Gc protein of colorectal cancer patients was lost or reduced because Gc protein is deglycosylated by serum α-N-acetylgalactosaminidase (Nagalase) secreted from cancerous cells. Deglycosylated Gc pro...
Proceedings: AACR 102nd Annual Meeting 2011‐‐ Apr 2‐6, 2011; Orlando, FL
Intratumor BCG administration eradicates local as well as metastasized tumors (e.g., skin cancer). Administration of BCG into noncancerous tissues, however, results in no effect on the tumors. Inflammation induced by BCG in normal tissues releases lysophospholipids that activ...
This study investigated the inhibitory effect of vitamin D-binding protein-derived macrophage-activating factor (GcMAF) on carcinogenesis and tumor growth, using a 9,10-dimethyl-1,2-benzanthracene (DMBA)-induced hamster cheek pouch carcinogenesis model, as well as the cytocidal effect of activated macrophages against HCPC-1, a cell line established...
Proceedings: AACR 102nd Annual Meeting 2011‐‐ Apr 2‐6, 2011; Orlando, FL
Serum Gc protein (known as vitamin D-binding protein) is the precursor for the principal macrophage activating factor (MAF). The MAF precursor activity of serum Gc protein of cancer patients was lost or reduced because Gc protein was deglycosylated by serum α-N-acetylgalactos...
Serum Gc protein (known as vitamin D3-binding protein) is the precursor for the principal macrophage activating factor (MAF). The MAF precursor activity of serum Gc protein of HIV-infected patients was lost or reduced because Gc protein is deglycosylated by alpha-N-acetylgalactosaminidase (Nagalase) secreted from HIV-infected cells. Therefore, macr...
Serum vitamin D binding protein (Gc protein) is the precursor for the principal macrophage-activating factor (MAF). The MAF precursor activity of serum Gc protein of colorectal cancer patients was lost or reduced because Gc protein is deglycosylated by serum alpha-N-acetylgalactosaminidase (Nagalase) secreted from cancerous cells. Deglycosylated Gc...
Serum Gc protein (known as vitamin D(3)-binding protein) is the precursor for the principal macrophage-activating factor (MAF). The MAF precursor activity of serum Gc protein of prostate cancer patients was lost or reduced because Gc protein was deglycosylated by serum alpha-N-acetylgalactosaminidase (Nagalase) secreted from cancerous cells. Theref...
Serum vitamin D3-binding protein (Gc protein) is the precursor for the principal macrophage activating factor (MAF). The MAF precursor activity of serum Gc protein of breast cancer patients was lost or reduced because Gc protein was deglycosylated by serum alpha-N-acetylgalactosaminidase (Nagalase) secreted from cancerous cells. Patient serum Nagal...
Demonstration of experimental autoimmune uveitis (EAU) with extremely small, fragmented peptides (12-30 amino acid residues) of interphotoreceptor retinoid-binding protein (IRPB).
Very small fragmented peptides (no. 854, 888, 907, and 1057) were conjugated to heat-killed Group A Streptococcus cells and administered as a single intravenous injection...
An abstract is unavailable. This article is available as HTML full text and PDF.
Serum vitamin D3-binding protein (Gc protein) is the precursor for the principal macrophage activating factor (MAF). The precursor activity of serum Gc protein was reduced in all influenza virus-infected patients. These patient sera contained alpha-N-acetylgalactosaminidase (Nagalase) that deglycosylates Gc protein. Deglycosylated Gc protein cannot...
An abstract is unavailable. This article is available as HTML full text and PDF.
Citations
... Although GcMAF therapy has been found to show curative effects on a variety of cancers (10)(11)(12)(13)37,38), Yamamoto et al stated that the efficacy of GcMAF therapy for a variety of cancer types depends on the degree of cell membrane abnormality (12,13). Undifferentiated tumor cells are killed more efficiently than differentiated tumor cells. ...
... Weekly administrations of 100 ng GcMAF to metastatic adenocarcinoma (breast and prostate cancer) patients (n ¼ 32) and metastatic colorectal cancer patients eradicate tumors in 16–25 weeks and 32–50 weeks, respectively [Yamamoto and Ueda, 2004a; Yamamoto et al., , 2008a. With the same therapeutic procedure (i.e., administration of 100 ng GcMAF/week) in a preliminary study of HIV-infected patients, both cell-free virions and HIV-infected cells were eradicated in 10–18 weeks [Yamamoto and Ueda, 2004b; Yamamoto et al., 2007]. ...
... The results were interesting: first, it was observed that the tumor associated macrophages were not activated by GcMAF; second, the phagocytosis and the superoxide capacities of all activated macrophages increased, independent of the stage of cancer (11). The macrophages activated by GcMAF recognize not only cancerous cells, but also can internalize and eliminate various bacteria (Escherichia coli, Salmonella typhi, Pseudomonas aeruginosa, Bacillus subtilis, Clostridium perfrigens, Mycobacterium tuberculosis, viruses (rubella, herpes simplex, parainflueza and influeza virus, HIV type 1) (26). The study shows that undifferentiated tumour cells, such as adenocarcinoma cells founded in breast cancer and other types of cancer such as prostate cancer, are detected and eradicated particularly than squamous carcinoma cells, with well-differentiated cancer cells (11). ...
... Although GcMAF therapy has been found to show curative effects on a variety of cancers (10)(11)(12)(13)37,38), Yamamoto et al stated that the efficacy of GcMAF therapy for a variety of cancer types depends on the degree of cell membrane abnormality (12,13). Undifferentiated tumor cells are killed more efficiently than differentiated tumor cells. ...
... One of the most clinically relevant properties of GcMAF-activated macrophages is their antitumor activity [1, 2,7,[18][19][20][21][22][23][24][25][26]. ...
... Although the administration of GcMAF is a yet an unapproved therapy, data from previous studies and clinical practice reported its effectiveness in the treatment of many pathologies such as HIV infection [55] and other infectious diseases [53], some types of cancer [56][57][58][59][60], juvenile osteopetrosis [61], immunological (systemic erythematous lupus) [62] and neurological (multiple sclerosis, autism) diseases [57,63,64]. In the same conditions, it was found an inverse correlation between the MAF precursor activity and serum levels of nagalase (reference ranges from 0,32 to 0,65-0,95 nM/min/ng), therefore showing to be other than pathogenicity or cancer biomarkers, also good prognosticators of illness and response to therapy [54][55][56][57][58][59][60][61][62][63][64]. ...
... В ряде экспериментальных работ in vitro и in vivo, а также в клинических испытаниях показана неординарная эффективность DBP-MAF при лечении опухолевых заболеваний и ВИЧ-инфекции [60,61]. Предполагается, что противоопухолевый эффект DBP-MAF обусловлен несколькими механизмами, такими как активация макрофагов, прямое ингибирование пролиферации, миграции и метастазирования опухолевых клеток, а также подавление неоангиогенеза в опухолевой ткани [62]. ...
... 42 Thus, α-NaGalase, being an immunosuppressive agent in cancer patients, is considered as a potential therapeutic agent in cancer treatment. One of the causes of some diseases, including cancer, viral infections, and metabolic and genetic disorders is an imbalance in glycosidase functions; [43][44][45][46] glycosidase inhibitors can regulate or block the enzyme imbalance. So, the much attention is paid to identify potential inhibitors of α-NaGalase 47,48 and α-Galase. ...
... In a recent study, was administrated inside the cancerous cells an amount of BCG (Bacille Calmette Guerin), or other bacterial cells and shortly after, as a result, they induced inflammation of cancerous tissues. Via inflammation both local tumours, as well as metastasized cells can regress, suggesting the development of specific immunity mechanisms against the tumours (10), (11). Inflammation in noncancerous tissues has not shown the same significant effect in comparation to the cancerous tissues (10), (11). ...
... To date, most of the evidence reporting the role of vitamin D 3 in the immune response regarded few autoimmune and inflammatory chronic diseases [39]. In a cancer therapy perspective, it is noteworthy that the role of the calcitriol/VDR signaling has a dramatic and positive impact on CD8 + T cells [40], increases the NLR family, pyrin domain containing 3-dependent release of interleukin-1β from human monocytic cell line monocytes [41], and promotes distinct approaches in immunotherapy and chemotherapy [42][43][44]. As many nutritional co-factors, such as vitamins and polyphenols, vitamin D 3 too exerts a pleiotropic role on cellular systems and most probably its beneficial potential might derive from its ability in promoting cell response to stress [45] and yet pleiotropism is another hallmark of cytokines. ...