T-Lymphocytes

Publication Title: 
Journal of Ethnopharmacology

The activity of a crude extract formulation was evaluated in experimental amoebic liver abscess in golden hamsters and in immunomodulation studies. The formulation comprises the following five plants-Boerhavia diffusa, Tinospora cordifolia, Berberis aristata, Terminalia chebula and Zingiber officinale. The formulation had a maximum cure rate of 73% at a dose of 800 mg/kg/day in hepatic amoebiasis reducing the average degree of infection (ADI) to 1.3 as compared to 4.2 for sham-treated controls.

Author(s): 
Sohni, Y. R.
Bhatt, R. M.
Publication Title: 
Phytotherapy research: PTR

Terminalia chebula (TC) is native to southern Asia to southwestern China and is used in traditional medicine for the treatment of human ailments including malignant tumors and diabetes. This plant also has antibacterial and immunomodulatory properties. Nuclear factor kappa-light chain-enhancer of activated B cells (NF-?B) is responsible for the expression of numerous genes involved in cell survival, proliferation, angiogenesis, inflammation, invasion and metastasis, among other processes.

Author(s): 
Das, Nando Dulal
Jung, Kyoung Hwa
Park, Ji Hyun
Mondol, Md Abdul Mojid
Shin, Hee Jae
Lee, Hyi-Seung
Park, Kyoung Sun
Choi, Mi Ran
Kim, Kyung Suk
Kim, Moo Sung
Lee, Sang Rin
Chai, Young Gyu
Publication Title: 
Journal of Medicinal Food

Terminalia chebula is a native plant from southern Asia to southwestern China that is used in traditional medicine for the treatment of malignant tumors and diabetes. This plant also has antibacterial and immunomodulatory properties. The present study assessed T. chebula extract-dependent protein expression changes in Jurkat cells. Matrix-assisted laser desorption/ionization-time-of-flight mass spectrometry and Ingenuity Pathways Analysis (IPA) were performed to assess protein expression and networks, respectively. A comparative proteomic profile was determined in T.

Author(s): 
Das, Nando Dulal
Jung, Kyoung Hwa
Park, Ji Hyun
Choi, Mi Ran
Lee, Hyung Tae
Kim, Moo Sung
Lee, Sang Rin
Chai, Young Gyu
Publication Title: 
Tijdschrift Voor Gerontologie En Geriatrie

Ageing in immune reactivity is described at the level of lymphoid cells, at that of lymphoid organs and organ function, and at that of regulation of cell and organ function. Apart from shifts in numbers of lymphoid cell subpopulations, the decrease in communication capacity between lymphoid cell populations and in binding of invaders (like bacteria) is an important aspect of ageing. These aspects may contribute to the decreased immune reactivity to invaders and the enhanced incidence of immune reactions to self-components (autoimmune reactivity).

Author(s): 
Schuurman, H. J.
Lokhorst, H. M.
Publication Title: 
Experimental Cell Research

Lymphocytes have a finite and predictable proliferative life span in culture similar to that observed in fibroblasts. In general, the senescence of human fibroblasts is inevitable and irreversible, but their proliferative life span can be extended by certain DNA tumor virus oncogenes, such as the large T antigen of the SV40 virus. Here, we show that human T lymphocytes (HTL) can be stably transfected with SV40 large T and that expression of T antigen extended the life span of T cell cultures.

Author(s): 
Ryan, Q. C.
Goonewardene, I. M.
Murasko, D. M.
Publication Title: 
Mechanisms of Ageing and Development

Carnosine (beta-alanyl-L-histidine), an abundant naturally-occurring dipeptide has been shown to exhibit anti-ageing properties towards cultured cells, possibly due in part to its antioxidant/free radical scavenging abilities. In this paper the results of an investigation on the effects of carnosine, at the physiological concentration of 20 mM, on oxidative DNA damage levels and in vitro lifespan in peripheral blood derived human CD4+ T cell clones are reported.

Author(s): 
Hyland, P.
Duggan, O.
Hipkiss, A.
Barnett, C.
Barnett, Y.
Publication Title: 
Trends in Immunology

Helminth parasites survive through a combination of parasite longevity, repeated re-infection and selective immune suppression to prevent protective Th2 responses. To counteract helminth-induced immunosuppression, and to induce long-term immunological memory, understanding of the multiple regulatory pathways within the T cell compartment is needed. Extrinsic inhibition by regulatory T cells is a key element of Th2 suppression.

Author(s): 
Taylor, Matthew D.
van der Werf, Nienke
Maizels, Rick M.
Publication Title: 
Age (Dordrecht, Netherlands)

Throughout life, there is an aging of the immune system that causes impairment of its defense capability. Prevention or delay of this deterioration is considered crucial to maintain general health and increase longevity. We evaluated whether dietary supplementation with Lactobacillus delbrueckii subsp. bulgaricus 8481 could enhance the immune response in the elderly. This multi-center, double-blind, and placebo controlled study enrolled 61 elderly volunteers who were randomly assigned to receive either placebo or probiotics. Each capsule of probiotics contained at least 3?◊?10(7)? L.

Author(s): 
Moro-GarcÌa, Marco Antonio
Alonso-Arias, Rebeca
Baltadjieva, Maria
Fern·ndez BenÌtez, Carlos
Fern·ndez Barrial, Manuel Amadeo
DÌaz Ruis·nchez, Enrique
Alonso Santos, Ricardo
Alvarez S·nchez, Magdalena
Saavedra Mij·n, Juan
LÛpez-Larrea, Carlos
Publication Title: 
Advances in Gerontology = Uspekhi Gerontologii / Rossi?skai?a Akademii?a Nauk, Gerontologicheskoe Obshchestvo

We studied the basic indicators of immune status of healthy persons of different age groups living in the monsoon climate in the southern Far East. The analysis shows age-dependent development of immunodepressive status, combined with increasing levels of CD16, CD25 and HLA-DR in the aging organism. Climatic and anthropogenic factors effect profoundly damaging on the body, which results in the severity of disorders of the immune system in old, old age and longevity.

Author(s): 
Gvozdenko, T. A.
Kytikova, O. Iu
Vitkina, T. I.
Borshchev, P. V.
Publication Title: 
Journal of Dental Research

Discoveries of immunomodulatory functions in mesenchymal stem cells (MSCs) have suggested that they might have therapeutic utility in treating immune diseases. Recently, a novel MSC population was identified from dental pulp of human supernumerary teeth, and its multipotency characterized. Herein, we first examined the in vitro and in vivo immunomodulatory functions of human supernumerary tooth-derived stem cells (SNTSCs).

Author(s): 
Makino, Y.
Yamaza, H.
Akiyama, K.
Ma, L.
Hoshino, Y.
Nonaka, K.
Terada, Y.
Kukita, T.
Shi, S.
Yamaza, T.

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