Abstract:
:Here, we report the immunomodulating potential of N-palmitoyl-amino-ethyl-rigin amide (PR) and N-cholestanyl-amino-ethyl-rigin amide (CR), the two new structural analogs of rigin (an IgG-derived tetrapeptide). Their activity profiles are compared with native tuftsin (NT) and/or N-palmitoyl-amino-ethyl-tuftsin amide (PT) taken as positive control. To explore the possibility of their use as targeting molecules, they are incorporated into the liposome bilayer and, subsequently, interacted with macrophages in an in vitro study. The new analogs of rigin with the hydrophobicity introduced at the C-terminus are found to considerably improve both the cell-mediated and the humoral immune responses in mice. However, unlike tuftsin and its analog, which mainly activate polymorphonuclear leukocytes and macrophages, the rigin analogs appear to manifest their response more through lymphocytes. When administered prophylactically to a group of mice, at the dose of 100 micrograms/0.5 ml/mouse/day for 2 days (i.v.), followed by a challenge presented with 1 x 10(6) rbcs parasitised with Plasmodium berghei on day 0, substantial reduction in parasitaemia and rate of mortality is observed. This led to increase the median survival time (MST) of the treated group in comparison to the control group. The response is found to be more prominent in CR-treated mice possibly because of the presence of steroid moiety, which is likely to have more productive interaction with cell membranes. Incorporation of these peptides into the bilayer of liposomes does not alter the permeability behavior of vesicles and, in fact, enhances their uptake by the macrophages in an in vitro study. The effect, however, is dependent on both, the concentration of peptide liposomes and the time of incubation. Present study, thus, establishes the possible use of these analogs not only as adjuvant in chemotherapy, but also as a prophylactic supplement to boost the natural immune status. The activity response of rigin analogs is manifested through lymphocytes, they can also find use in the chemotherapy of diseases, like leishmaniasis, tuberculosis and leprosy, where macrophage activity is either tamed or impaired by pathogens.
journal_name
Int Immunopharmacoljournal_title
International immunopharmacologyauthors
Dutta RC,Puri A,Anand Ndoi
10.1016/s1567-5769(01)00021-2keywords:
subject
Has Abstractpub_date
2001-05-01 00:00:00pages
843-55issue
5eissn
1567-5769issn
1878-1705pii
S1567-5769(01)00021-2journal_volume
1pub_type
杂志文章abstract::Autoimmune, lupus-prone MRL lpr/lpr mice were treated orally with oxo-quinoline-3-carboxamide (ABR-25757), a newly developed immunomodulator. Treatment was initiated in one set of experiment at the age of 10 weeks, before the onset of clinically apparent disease, and in another set at 15 weeks, after the development o...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2004.07.009
更新日期:2004-11-01 00:00:00
abstract::Isolating and purifying liver immune cells are crucial for observing the changes in intrahepatic immune responses during the development of liver diseases and exploring the potential immunological mechanisms. Therefore, the aim of this study was to provide an optimal protocol for isolating immune cells with a high yie...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2020.106632
更新日期:2020-08-01 00:00:00
abstract:BACKGROUND:Ambient fine particulate matter (PM2.5) could induce lung injury. Aryl hydrocarbon receptor (AhR) is involved in the molecular mechanisms of prooxidative and pro-inflammatory effect of PM2.5. Molecular hydrogen has antioxidant properties. The protective effect and mechanism of hydrogen on PM2.5-induced lung ...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2019.105939
更新日期:2019-12-01 00:00:00
abstract::Hericium erinaceum is a medicinal and edible mushroom with anti-microbial and anti-cancer activities. To evaluate the immunoregulatory functions of H. erinaceum, we prepared water extract from H. erinaceum (WEHE) and investigated its ability to activate macrophages and to induce nitric oxide (NO) production in macroph...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2006.03.005
更新日期:2006-08-01 00:00:00
abstract::Lipopolysaccharide (LPS) plays an important role in Gram-negative bacteria-induced sepsis and multiple organ dysfunction syndrome, which are still the leading cause of high mortality in intensive care units. Although paeoniflorin (Pae) has reportedly exhibited anti-inflammatory effect and protection against immunologi...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2010.11.012
更新日期:2011-02-01 00:00:00
abstract::Autism spectrum disorder (ASD) is a heterogeneous disorder diagnosed based on the severity of abnormalities in social skills. Several studies have acknowledged the presence of abnormal immune functions among individuals diagnosed with ASD. HLA-DR (human leukocyte antigen-antigen D related) has been shown to play a sig...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2018.10.027
更新日期:2018-12-01 00:00:00
abstract::Rheumatoid arthritis (RA) is a chronic autoimmune inflammatory disease. Gallium nitrate has been reported to reserve immunosuppressive activities. Therefore, we assessed the therapeutic effects of gallium nitrate in the mouse model of developed type II collagen-induced arthritis (CIA). CIA was induced by bovine type I...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2014.03.005
更新日期:2014-05-01 00:00:00
abstract::Opioid abuse has been shown to exacerbate the immunosuppressive effects and pathogenesis of HIV infection. The mu opioid receptor (MOR) is present on immune cells, such as macrophages, and mediates the direct immunomodulatory effects of opioids. Through its surface glycoprotein, gp120, HIV-1 binds to surface receptors...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2006.04.018
更新日期:2006-09-01 00:00:00
abstract::There is increasing appreciation of the critical pathogenic role of IL-17 in inflammation and autoimmune diseases, which could be produced from both adaptive Th17 cells and innate γδ T cells. Existing evidences suggest that IL-2 is important for in vivo accumulation of IL-17+ γδ T cells, leaving the mechanisms still e...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2020.106721
更新日期:2020-09-01 00:00:00
abstract::Plants constitute an important source of compounds which can induce apoptosis in a variety of cells. Previously, we reported the isolation of a trypsin inhibitor from Peltophorum dubium seeds (PDTI). This inhibitor, as well as soybean trypsin inhibitor (SBTI), both belonging to the Kunitz family, have lectin-like prop...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2007.01.002
更新日期:2007-05-01 00:00:00
abstract:BACKGROUNDS:C1q tumor necrosis factor-related protein 9 (CTRP9) has been suggested to exert an atheroprotective effect by modulating the inflammation, foam cell formation, endothelia and smooth muscle cell function via Adenosine Monophosphate Activated Protein Kinase (AMPK) pathway. On the other hand, the NLR Family Py...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2019.105934
更新日期:2019-12-01 00:00:00
abstract::Sepsis is a serious and life-threatening medical condition with a higher rate of patients' morbidity and mortality and with complications such as acute kidney injury (AKI). S-allyl cysteine (SAC) is the active constituent of the medicinal plant garlic (Allium sativum) with multiple beneficial effects including anti-in...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2019.01.026
更新日期:2019-04-01 00:00:00
abstract::Mastitis is a postpartum disease in both humans and animals. Staphylococcus aureus (S. aureus) can induce mastitis by infection of the lactiferous ducts. There is no efficacious treatment for S. aureus-induced mastitis. Betulin has been confirmed to have multiple biological activities, including anti-inflammatory prop...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2015.08.035
更新日期:2015-12-01 00:00:00
abstract::Rheumatoid arthritis (RA) is a high morbidity and disability disease with numerous inflammatory cells infiltrating in interstitial of articular cartilages and bones. As the most abundant inflammatory cells, neutrophil has been reported that their apoptosis changed gradually in the circumstance of RA. Apoptosis, one mo...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2018.09.011
更新日期:2018-12-01 00:00:00
abstract::Nicotine, the major addictive component of tobacco, is an immunomodulator that impacts on many cells, including immune cells involved in inflammatory processes. Nicotine also induces oxidative damage to the vascular endothelium and accentuates lipid peroxidation, resulting in vascular cell dysfunction. Furthermore, va...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2005.07.005
更新日期:2006-01-01 00:00:00
abstract::Hypercapnia is known to have immunoregulatory effects within the lung. Cell culture systems demonstrate this in both macrophages and alveolar cell lines, suggesting that the alveoli are affected by changes in CO2 levels. We hypothesized that hypercapnia would also modulate human bronchial epithelial cell immune respon...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2015.04.031
更新日期:2015-07-01 00:00:00
abstract::The present study was conducted to determine if selected events in glucocorticoid receptor (GR) signaling that have been identified using mostly in vitro approaches with synthetic glucocorticoids also occur in mature T cells exposed to relevant levels of corticosterone in vivo. In contrast to effects reported in vitro...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/s1567-5769(02)00081-4
更新日期:2003-01-01 00:00:00
abstract::The present study reports the anti-mycobacterial activity of 2-hydroxy-3-(3-methyl-2-butenyl)-1,4-naphthoquinone (lapachol) as well as its influence on macrophage functions. Lapachol (L) did not induce apoptosis/necrosis of THP-1 macrophages at ≤32 μg/mL. Mycobacterium avium liquid growth was arrested by ≥32 μg/mL and...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2010.08.023
更新日期:2010-11-01 00:00:00
abstract:BACKGROUND:Immunomodulation by indoleamine 2,3-dioxygenase (IDO) has been documented in many studies yet its underlying mechanisms remain undefined, especially in solid organ transplantation. Recent research demonstrated that the active expression of IDO in dendritic cells (DCs) regulates immune reaction. This study as...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2016.03.048
更新日期:2016-07-01 00:00:00
abstract::Histamine can modulate the balance between T helper lymphocytes 1 and 2 (Th1 and Th2), and there is evidence that allergic reactions can be associated with excessive histamine production causing shifts toward Th2 responses. As signal transduction in Th-cells is specifically correlated to signal transducer and activato...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2006.06.005
更新日期:2006-10-01 00:00:00
abstract::High mobility group box 1 (HMGB1) is a late phase inflammatory mediator in many inflammatory diseases. Extracellular HMGB1 could bind to many membrane receptors to activate downstream signaling molecules and promote inflammation resulting in cell and tissue damage. In our previous work, we found cannabinoid receptor Ⅱ...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2019.106007
更新日期:2020-01-01 00:00:00
abstract::Clematichinenoside AR (AR), a major active ingredient extracted from traditional Chinese herb Clematis chinensis Osbeck, has been demonstrated to possess anti-inflammatory and immune-modulatory activities in the treatment of experimental rheumatoid arthritis (RA). The therapeutic potential of AR was supposed to be clo...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2019.04.010
更新日期:2019-10-01 00:00:00
abstract::Administration of oligomannose-coated liposomes (OMLs) in mice can induce Th1 immune responses against antigens entrapped in the OMLs. In the present study, we investigated the anti-allergic effect of treatment with oligomannose-coated liposomes (OMLs) with entrapped Cry j 1, a major allergen of Japanese cedar pollen ...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2010.06.003
更新日期:2010-09-01 00:00:00
abstract::In this study, Mtb8.4 and HspX, which are expressed at proliferating and dormant stages of Mycobacterium tuberculosis (M. tuberculosis), respectively, were chosen to construct two fusion proteins, Mtb8.4-HspX (8.4H) and HspX-Mtb8.4 (H8.4), and we investigated whether the antigen dose and protein sequential order could...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2017.10.015
更新日期:2017-12-01 00:00:00
abstract::In this study, we investigated the preventive effects of curcumin using dextran sulfate sodium (DSS)-induced colitis and the potential role of curcumin in regulation of anti-inflammation through S-nitrosylation. After curcumin treatment for 6days, the body weight and disease activity index of DSS-induced mice was alle...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2016.05.015
更新日期:2016-09-01 00:00:00
abstract::Interleukin 17 (IL-17) is a proinflammatory cytokine that acts as an immune checkpoint for several autoimmune diseases. Therapeutic neutralizing antibodies that target this cytokine have demonstrated clinical efficacy in psoriasis. However, biologics have limitations such as their high cost and their lack of oral bioa...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2020.107026
更新日期:2020-12-01 00:00:00
abstract::Hereditary Angioedema (HAE) is a rare, autosomal dominant disease caused by mutations in SERPING1 gene leading to dysfunction/deficiency of C1-esterase inhibitor (C1-INH) protein and subsequent dysregulation of the contact system and bradykinin overproduction. As functional C1-INH (fC1-INH) levels are reduced in HAE t...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2020.106526
更新日期:2020-06-01 00:00:00
abstract::Nerve growth factor (NGF) has been shown to protect the viability of kidney cells in acute phase of renal damage. However, since the half-life of NGF is very short, it is too large to pass the blood-brain barrier and rapidly transported to the liver for catabolizing its use in therapy is limited. 4-Methylcatechol (4MC...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2018.08.017
更新日期:2018-11-01 00:00:00
abstract::The frequency of different subsets of CD4(+)CXCR5(+) TFH cells and serum cytokine levels were analyzed in a total of 14 patients with newly diagnosed hepatitis B virus-associated membranous nephropathy (HBV-MN), 12 individuals with immune-tolerant HBV infection (HBV-IT) and 12 healthy controls (HC). Serum cytokine lev...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2014.06.024
更新日期:2014-09-01 00:00:00
abstract::Rheumatoid arthritis (RA) is an inflammatory disease with symmetric polyarthritis. IL-6 and NLRP3 inflammasome in macrophages contribute to the pathogenesis of RA. This study aimed to investigate the relationship between IL-6 and the NLRP3 inflammasome in RA. Here, we found that IL-6 inhibition reduced NLRP3 inflammas...
journal_title:International immunopharmacology
pub_type: 杂志文章
doi:10.1016/j.intimp.2020.106985
更新日期:2020-11-01 00:00:00