Preferential Inhibition of T Helper 1, but Not T Helper 2, Cytokines in Vitro by L-826,141 [4-{2-(3,4-Bisdifluromethoxyphenyl)-2-{4-(1,1,1,3,3,3-hexafluoro-2-hydroxypropan-2-yl)-phenyl]-ethyl}-3-methylpyridine-1-oxide], a Potent and Selective Phosphodiesterase 4 Inhibitor

2004 ◽  
Vol 310 (2) ◽  
pp. 752-760 ◽  
Author(s):  
D. Claveau ◽  
S. L. Chen ◽  
S. O'Keefe ◽  
D. M. Zaller ◽  
A. Styhler ◽  
...  
Keyword(s):  
T Helper ◽  
T Helper 1 ◽  
T Helper 2 ◽  
Phosphodiesterase 4 ◽  
Phosphodiesterase 4 Inhibitor

scholarly journals BCG stimulated dendritic cells induce an interleukin-10 producing T-cell population with no T helper 1 or T helper 2 bias in vitro

Immunology ◽  
2007 ◽  
Vol 121 (2) ◽  
pp. 276-282 ◽  
Author(s):  
Jeppe Madura Larsen ◽  
Christine Stabell Benn ◽  
Yvonne Fillie ◽  
Desiree van der Kleij ◽  
Peter Aaby ◽  
...  
Keyword(s):  
Dendritic Cells ◽  
T Cell ◽  
Cell Population ◽  
Interleukin 10 ◽  
T Helper ◽  
T Helper 1 ◽  
T Helper 2

scholarly journals OX40L–OX40 Signaling in Atopic Dermatitis

2021 ◽  
Vol 10 (12) ◽  
pp. 2578
Author(s):  
Masutaka Furue ◽  
Mihoko Furue
Keyword(s):  
T Cells ◽  
Atopic Dermatitis ◽  
Memory T Cells ◽  
Effector Memory ◽  
T Helper ◽  
T Helper 1 ◽  
Therapeutic Success ◽  
T Helper 2 ◽  
Promising Target ◽  
Antigen Presenting

OX40 is one of the co-stimulatory molecules expressed on T cells, and it is engaged by OX40L, primarily expressed on professional antigen-presenting cells such as dendritic cells. The OX40L–OX40 axis is involved in the sustained activation and expansion of effector T and effector memory T cells, but it is not active in naïve and resting memory T cells. Ligation of OX40 by OX40L accelerates both T helper 1 (Th1) and T helper 2 (Th2) effector cell differentiation. Recent therapeutic success in clinical trials highlights the importance of the OX40L–OX40 axis as a promising target for the treatment of atopic dermatitis.

Remission of Alopecia Universalis after 1 Year of Treatment with Dupilumab in a Patient with Severe Atopic Dermatitis

2021 ◽  
pp. 1-4
Author(s):  
Maurizio Romagnuolo ◽  
Mauro Barbareschi ◽  
Simona Tavecchio ◽  
Luisa Angileri ◽  
Silvia Mariel Ferrucci
Keyword(s):  
Atopic Dermatitis ◽  
Skin Disorder ◽  
Human Monoclonal Antibody ◽  
Severe Atopic Dermatitis ◽  
T Helper ◽  
T Helper 1 ◽  
Th2 Response ◽  
Alopecia Universalis ◽  
T Helper 2 ◽  
Relapsing Remitting

Alopecia areata (AA), an autoimmune disease with a relapsing-remitting course, represents the second cause of non­scarring alopecia worldwide and is associated with several comorbidities, notably atopic dermatitis (AD). In particular, AD is related to its more severe forms alopecia totalis (AT) and alopecia universalis (AU) [Nat Rev Dis Primers. 2017;3:17011]. Considering that AA has been classified as T helper 1-driven disease, whereas AD is the prototypical T helper 2 (Th2)-driven skin disorder, recent studies suggest that these forms may underlie a different chemokine expression resulting in a Th2 skewing as a key pathomechanism that could explain this association [JAMA Dermatol. 2015 May;151(5):522–8]. Several reports showed that dupilumab, a fully human monoclonal antibody targeting the interleukin 4α receptor and thus downregulating Th2 response, led to an improvement of AA associated with AD; most of these patients were females with AT or AU, early-onset AD, and atopic comorbidities [Exp Dermatol. 2020 Aug;29(8):726–32]. We report here a case to further support this hypothesis.

scholarly journals Changes in Maternal Peripheral T Helper 1-Type and T Helper 2-Type Immunity during Labor.

2001 ◽  
Vol 194 (2) ◽  
pp. 137-140 ◽  
Author(s):  
Toyohiko Kuwajima ◽  
Shunji Suzuki ◽  
Rintaro Sawa ◽  
Yoshio Yoneyama ◽  
Toshiyuki Takeshita ◽  
...  
Keyword(s):  
T Helper ◽  
T Helper 1 ◽  
T Helper 2

The Effect of Crocus sativus Extract on Human Lymphocytes' Cytokines and T Helper 2/T Helper 1 Balance

2011 ◽  
Vol 14 (12) ◽  
pp. 1538-1545 ◽  
Author(s):  
Mohammad Hossein Boskabady ◽  
Seyedh Masoumeh Seyedhosseini Tamijani ◽  
Houshang Rafatpanah ◽  
Abadolrahim Rezaei ◽  
Azam Alavinejad
Keyword(s):  
Human Lymphocytes ◽  
Crocus Sativus ◽  
T Helper ◽  
T Helper 1 ◽  
T Helper 2

scholarly journals Adenosine A 2A receptor activation inhibits T helper 1 and T helper 2 cell development and effector function

2008 ◽  
Vol 22 (10) ◽  
pp. 3491-3499 ◽  
Author(s):  
Balázs Csóka ◽  
Leonóra Himer ◽  
Zsolt Selmeczy ◽  
E. Sylvester Vizi ◽  
Pal Pacher ◽  
...  
Keyword(s):  
Receptor Activation ◽  
Cell Development ◽  
Effector Function ◽  
T Helper ◽  
T Helper 1 ◽  
T Helper 2

Interferon resistance of cutaneous T-cell lymphoma–derived clonal T-helper 2 cells allows selective viral replication

Blood ◽  
2001 ◽  
Vol 97 (2) ◽  
pp. 523-527 ◽  
Author(s):  
Reinhard Dummer ◽  
Udo Döbbeling ◽  
Ralf Geertsen ◽  
Jörg Willers ◽  
Günter Burg ◽  
...  
Keyword(s):  
T Cell ◽  
Viral Replication ◽  
Human Leukocyte ◽  
T Helper ◽  
Cd4 Cells ◽  
Efficient Treatment ◽  
T Helper 2 ◽  
Ifn Γ ◽  
The Impact

Abstract Cutaneous T-cell lymphomas (CTCL) comprise a heterogeneous group of lymphoproliferative disorders that are characterized by an accumulation of T-lymphocytes in the skin and occasionally in blood known as Sézary syndrome (SS). In most cases the dominant clone displays T-helper 2 cytokines. Because IFN-γ is a natural inhibitor of T-helper 2 cells and IFN-α is frequently used in CTCL, the impact of IFNs on SS-derived purified clonal T-helper 2 cells was studied using anti-Vβ antibodies. Moreover, IFNs are known to mediate virus resistance in normal cells. The isolated clonal CD4+ cells, but not the nonclonal CD4+ cells, appeared resistant to IFN-γ and IFN-α stimulation in terms of human leukocyte antigen up-regulation and MxA induction caused in part by alterations in Stat-1 molecule mRNA and IFNγR1 mRNA transcription. The IFN resistance of the patient-derived clonal cells was then targeted by vesicular stomatitis virus infection after IFN-α priming, resulting in selective viral replication in clonal cells. In contrast, nonclonal cells of the same patient showed IFN-dependent MxA expression, which is a major mediator protein of viral protection. The IFN resistance of the dominant T-helper 2 cells might be important for lymphomagenesis. Interferon signaling deficiencies can be targeted for purging patients' cells in vitro. Furthermore, this approach may allow specific molecular interventions, resulting in the efficient treatment of CTCL and other IFN-resistant neoplasms such as lung cancer.

scholarly journals History and Perspective of Immunotherapy for Pythiosis

Vaccines ◽  
2021 ◽  
Vol 9 (10) ◽  
pp. 1080
Author(s):  
Hanna Yolanda ◽  
Theerapong Krajaejun
Keyword(s):  
Surgical Intervention ◽  
Primary Source ◽  
T Helper ◽  
T Helper 1 ◽  
Antimicrobial Drugs ◽  
Pythium Insidiosum ◽  
T Helper 2 ◽  
Genome Data ◽  
Life Threatening ◽  
Similar Survival

The fungus-like microorganism Pythium insidiosum causes pythiosis, a life-threatening infectious disease increasingly reported worldwide. Antimicrobial drugs are ineffective. Radical surgery is an essential treatment. Pythiosis can resume post-surgically. Immunotherapy using P. insidiosum antigens (PIA) has emerged as an alternative treatment. This review aims at providing up-to-date information of the immunotherapeutic PIA, with the focus on its history, preparation, clinical application, outcome, mechanism, and recent advances, in order to promote the proper use and future development of this treatment modality. P. insidiosum crude extract is the primary source of immunotherapeutic antigens. Based on 967 documented human and animal (mainly horses) pythiosis cases, PIA immunotherapy reduced disease morbidity and mortality. Concerning clinical outcomes, 19.4% of PIA-immunized human patients succumbed to vascular pythiosis instead of 41.0% in unimmunized cases. PIA immunotherapy may not provide an advantage in a local P. insidiosum infection of the eye. Both PIA-immunized and unimmunized horses with pythiosis showed a similar survival rate of ~70%; however, demands for surgical intervention were much lesser in the immunized cases (22.8% vs. 75.2%). The proposed PIA action involves switching the non-protective T-helper-2 to protective T-helper-1 mediated immunity. By exploring the available P. insidiosum genome data, synthetic peptides, recombinant proteins, and nucleic acids are potential sources of the immunotherapeutic antigens worth investigating. The PIA therapeutic property needs improvement for a better prognosis of pythiosis patients.

scholarly journals Adenovirus-Mediated CCR7 and BTLA Overexpression Enhances Immune Tolerance and Migration in Immature Dendritic Cells

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Haiming Xin ◽  
Jinhong Zhu ◽  
Hongcheng Miao ◽  
Zhenyu Gong ◽  
Xiaochen Jiang ◽  
...  
Keyword(s):  
Dendritic Cells ◽  
Immune Tolerance ◽  
Transplant Recipients ◽  
T Helper ◽  
T Helper 2 ◽  
Immature Dendritic Cells ◽  
And Migration ◽  
Mixed Lymphocyte Reactions ◽  
Dc Maturation

Our previous report revealed that immature dendritic cells (imDCs) with adenovirus-mediated CCR7 overexpression acquired an enhanced migratory ability but also exhibited the lower immune tolerance observed in more mature cells. In the present study, we aimed to investigate whether BTLA overexpression was sufficient to preserve immune tolerance in imDCs with exogenous CCR7 overexpression. Scanning electron microscopy and surface antigens analysis revealed that BTLA overexpression suppressed DC maturation, an effect further potentiated in CCR7 and BTLA cooverexpressing cells. Correspondingly, in vitro chemotaxis assays and mixed lymphocyte reactions demonstrated increased migratory potential and immune tolerance in CCR7 and BTLA coexpressing cells. Furthermore, CCR7 and BTLA cooverexpressed imDCs suppressed IFN-γ and IL-17 expression and promoted IL-4 and TGF-beta expression of lymphocyte, indicating an increase of T helper 2 (Th2) regulatory T cell (Treg). Thus, these data indicate that CCR7 and BTLA cooverexpression imparts an intermediate immune phenotype in imDCs when compared to that in CCR7- or BTLA-expressing counterparts that show a more immunocompetent or immunotolerant phenotype, respectively. All these results indicated that adenovirus-mediated CCR7 and BTLA overexpression could enhance immune tolerance and migration of imDCs. Our study provides a basis for further studies on imDCs in immune tolerance, with the goal of developing effective cellular immunotherapies for transplant recipients.

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