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Precision Medicine for Human Cancers with Notch Signaling Dysregulation (Review)
INTERNATIONAL JOURNAL OF MOleCular meDICine 45: 279-297, 2020 Precision medicine for human cancers with Notch signaling dysregulation (Review) MASUKO KATOH1 and MASARU KATOH2 1M & M PrecMed, Tokyo 113-0033; 2Department of Omics Network, National Cancer Center, Tokyo 104-0045, Japan Received September 16, 2019; Accepted November 20, 2019 DOI: 10.3892/ijmm.2019.4418 Abstract. NOTCH1, NOTCH2, NOTCH3 and NOTCH4 are conjugate (ADC) Rova-T, and DLL3-targeting chimeric antigen transmembrane receptors that transduce juxtacrine signals of receptor‑modified T cells (CAR‑Ts), AMG 119, are promising the delta-like canonical Notch ligand (DLL)1, DLL3, DLL4, anti-cancer therapeutics, as are other ADCs or CAR-Ts targeting jagged canonical Notch ligand (JAG)1 and JAG2. Canonical tumor necrosis factor receptor superfamily member 17, Notch signaling activates the transcription of BMI1 proto-onco- CD19, CD22, CD30, CD79B, CD205, Claudin 18.2, fibro- gene polycomb ring finger, cyclin D1, CD44, cyclin dependent blast growth factor receptor (FGFR)2, FGFR3, receptor-type kinase inhibitor 1A, hes family bHLH transcription factor 1, tyrosine-protein kinase FLT3, HER2, hepatocyte growth factor hes related family bHLH transcription factor with YRPW receptor, NECTIN4, inactive tyrosine-protein kinase 7, inac- motif 1, MYC, NOTCH3, RE1 silencing transcription factor and tive tyrosine-protein kinase transmembrane receptor ROR1 transcription factor 7 in a cellular context-dependent manner, and tumor-associated calcium signal transducer 2. ADCs and while non-canonical Notch signaling activates NF-κB and Rac CAR-Ts could alter the therapeutic framework for refractory family small GTPase 1. Notch signaling is aberrantly activated cancers, especially diffuse-type gastric cancer, ovarian cancer in breast cancer, non-small-cell lung cancer and hematological and pancreatic cancer with peritoneal dissemination. -
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CADTH ISSUES IN EMERGING HEALTH TECHNOLOGIES Informing Decisions About New Health Technologies Issue July 173 2018 Monoclonal Antibodies for Osteoarthritis of the Hip or Knee Image courtesy of iStock CADTH ISSUES IN EMERGING HEALTH TECHNOLOGIES 1 Authors: Sirjana Pant, Ke Xin Li, Melissa Severn Cite As: Monoclonal Antibodies for Osteoarthritis of the Hip or Knee. Ottawa: CADTH; 2018. (CADTH issues in emerging health technologies; issue 173). Acknowledgments: CADTH would like to acknowledge the contribution of Dr. Tom Appleton, MD, PhD, FRCPC, Assistant Professor, Rheumatologist; Department of Medicine, Department of Physiology and Pharmacology, The University of Western Ontario; Clinician Scientist, Lawson Health Research Institute; The Rheumatology Centre, St. Joseph’s Health Care London; for his review of the draft version of this bulletin. ISSN: 1488-6324 (online) Disclaimer: The information in this document is intended to help Canadian health care decision-makers, health care professionals, health systems leaders, and policy- makers make well-informed decisions and thereby improve the quality of health care services. While patients and others may access this document, the document is made available for informational purposes only and no representations or warranties are made with respect to its fitness for any particular purpose. The information in this document should not be used as a substitute for professional medical advice or as a substitute for the application of clinical judgment in respect of the care of a particular patient or other professional judgment in any decision-making process. The Canadian Agency for Drugs and Technologies in Health (CADTH) does not endorse any information, drugs, therapies, treatments, products, processes, or services. -
Supplementary Information Changes in the Plasma Proteome At
Supplementary Information Changes in the plasma proteome at asymptomatic and symptomatic stages of autosomal dominant Alzheimer’s disease Julia Muenchhoff1, Anne Poljak1,2,3, Anbupalam Thalamuthu1, Veer B. Gupta4,5, Pratishtha Chatterjee4,5,6, Mark Raftery2, Colin L. Masters7, John C. Morris8,9,10, Randall J. Bateman8,9, Anne M. Fagan8,9, Ralph N. Martins4,5,6, Perminder S. Sachdev1,11,* Supplementary Figure S1. Ratios of proteins differentially abundant in asymptomatic carriers of PSEN1 and APP Dutch mutations. Mean ratios and standard deviations of plasma proteins from asymptomatic PSEN1 mutation carriers (PSEN1) and APP Dutch mutation carriers (APP) relative to reference masterpool as quantified by iTRAQ. Ratios that significantly differed are marked with asterisks (* p < 0.05; ** p < 0.01). C4A, complement C4-A; AZGP1, zinc-α-2-glycoprotein; HPX, hemopexin; PGLYPR2, N-acetylmuramoyl-L-alanine amidase isoform 2; α2AP, α-2-antiplasmin; APOL1, apolipoprotein L1; C1 inhibitor, plasma protease C1 inhibitor; ITIH2, inter-α-trypsin inhibitor heavy chain H2. 2 A) ADAD)CSF) ADAD)plasma) B) ADAD)CSF) ADAD)plasma) (Ringman)et)al)2015)) (current)study)) (Ringman)et)al)2015)) (current)study)) ATRN↓,%%AHSG↑% 32028% 49% %%%%%%%%HC2↑,%%ApoM↓% 24367% 31% 10083%% %%%%TBG↑,%%LUM↑% 24256% ApoC1↓↑% 16565% %%AMBP↑% 11738%%% SERPINA3↓↑% 24373% C6↓↑% ITIH2% 10574%% %%%%%%%CPN2↓%% ↓↑% %%%%%TTR↑% 11977% 10970% %SERPINF2↓↑% CFH↓% C5↑% CP↓↑% 16566% 11412%% 10127%% %%ITIH4↓↑% SerpinG1↓% 11967% %%ORM1↓↑% SerpinC1↓% 10612% %%%A1BG↑%%% %%%%FN1↓% 11461% %%%%ITIH1↑% C3↓↑% 11027% 19325% 10395%% %%%%%%HPR↓↑% HRG↓% %%% 13814%% 10338%% %%% %ApoA1 % %%%%%%%%%GSN↑% ↓↑ %%%%%%%%%%%%ApoD↓% 11385% C4BPA↓↑% 18976%% %%%%%%%%%%%%%%%%%ApoJ↓↑% 23266%%%% %%%%%%%%%%%%%%%%%%%%%%ApoA2↓↑% %%%%%%%%%%%%%%%%%%%%%%%%%%%%A2M↓↑% IGHM↑,%%GC↓↑,%%ApoB↓↑% 13769% % FGA↓↑,%%FGB↓↑,%%FGG↓↑% AFM↓↑,%%CFB↓↑,%% 19143%% ApoH↓↑,%%C4BPA↓↑% ApoA4↓↑%%% LOAD/MCI)plasma) LOAD/MCI)plasma) LOAD/MCI)plasma) LOAD/MCI)plasma) (Song)et)al)2014)) (Muenchhoff)et)al)2015)) (Song)et)al)2014)) (Muenchhoff)et)al)2015)) Supplementary Figure S2. -
Recent Progress and Advances in HGF/MET-Targeted Therapeutic Agents for Cancer Treatment
Biomedicines 2015, 3, 149-181; doi:10.3390/biomedicines3010149 OPEN ACCESS biomedicines ISSN 2227-9059 www.mdpi.com/journal/biomedicines/ Review Recent Progress and Advances in HGF/MET-Targeted Therapeutic Agents for Cancer Treatment Yilong Zhang 1,*, Rajul K. Jain 2 and Min Zhu 1 1 Department of Clinical Pharmacology, Modeling and Simulation, Amgen Inc., One Amgen Center Drive, Thousand Oaks, CA 91320, USA; E-Mail: [email protected] 2 Kite Pharma, Inc., 2225 Colorado Avenue, Santa Monica, CA 90404, USA; E-Mail: [email protected] * Author to whom correspondence should be addressed; E-Mail: [email protected]; Tel.: +1-805-447-7131; Fax: +1-805-376-1869. Academic Editor: Giulia Ricci Received: 22 January 2015 / Accepted: 3 March 2015 / Published: 19 March 2015 Abstract: The hepatocyte growth factor (HGF): MET axis is a ligand-mediated receptor tyrosine kinase pathway that is involved in multiple cellular functions, including proliferation, survival, motility, and morphogenesis. Aberrancy in the HGF/MET pathway has been reported in multiple tumor types and is associated with tumor stage and prognosis. Thus, targeting the HGF/MET pathway has become a potential therapeutic strategy in oncology development in the last two decades. A number of novel therapeutic agents—either as therapeutic proteins or small molecules that target the HGF/MET pathway—have been tested in patients with different tumor types in clinical studies. In this review, recent progress in HGF/MET pathway-targeted therapy for cancer treatment, the therapeutic potential of HGF/MET-targeted agents, and challenges in the development of such agents will be discussed. Keywords: HGF; MET; cancer treatment; new therapeutic agents; biomarker 1. -
Predictive QSAR Tools to Aid in Early Process Development of Monoclonal Antibodies
Predictive QSAR tools to aid in early process development of monoclonal antibodies John Micael Andreas Karlberg Published work submitted to Newcastle University for the degree of Doctor of Philosophy in the School of Engineering November 2019 Abstract Monoclonal antibodies (mAbs) have become one of the fastest growing markets for diagnostic and therapeutic treatments over the last 30 years with a global sales revenue around $89 billion reported in 2017. A popular framework widely used in pharmaceutical industries for designing manufacturing processes for mAbs is Quality by Design (QbD) due to providing a structured and systematic approach in investigation and screening process parameters that might influence the product quality. However, due to the large number of product quality attributes (CQAs) and process parameters that exist in an mAb process platform, extensive investigation is needed to characterise their impact on the product quality which makes the process development costly and time consuming. There is thus an urgent need for methods and tools that can be used for early risk-based selection of critical product properties and process factors to reduce the number of potential factors that have to be investigated, thereby aiding in speeding up the process development and reduce costs. In this study, a framework for predictive model development based on Quantitative Structure- Activity Relationship (QSAR) modelling was developed to link structural features and properties of mAbs to Hydrophobic Interaction Chromatography (HIC) retention times and expressed mAb yield from HEK cells. Model development was based on a structured approach for incremental model refinement and evaluation that aided in increasing model performance until becoming acceptable in accordance to the OECD guidelines for QSAR models. -
IGF2 Mediates Resistance to Isoform-Selective-Inhibitors of the PI3K in HPV Positive Head and Neck Cancer
cancers Article IGF2 Mediates Resistance to Isoform-Selective-Inhibitors of the PI3K in HPV Positive Head and Neck Cancer Mai Badarni 1,2, Manu Prasad 1,2 , Artemiy Golden 3, Baisali Bhattacharya 1,2, Liron Levin 4,5, Ksenia M. Yegodayev 1,2, Orr Dimitstein 2,6, Ben-Zion Joshua 2,7, Limor Cohen 1,2, Ekaterina Khrameeva 3, Dexin Kong 8 , Angel Porgador 1,2, Alex Braiman 1,2, Jennifer R. Grandis 9, Barak Rotblat 5,10,* and Moshe Elkabets 1,2,* 1 The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Science, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; [email protected] (M.B.); [email protected] (M.P.); [email protected] (B.B.); [email protected] (K.M.Y.); [email protected] (L.C.); [email protected] (A.P.); [email protected] (A.B.) 2 Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; [email protected] (O.D.); [email protected] (B.-Z.J.) 3 Center of Life Sciences, Skolkovo Institute of Science and Technology, 121205 Moscow, Russia; [email protected] (A.G.); [email protected] (E.K.) 4 Bioinformatics Core Facility, National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; [email protected] 5 The National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel 6 Department of Otolaryngology—Head and Neck Surgery, Soroka University Medical Center, Beer-Sheva 84105, Israel 7 Citation: Badarni, M.; Prasad, M.; Department of Otorhinolaryngology and Head & Neck Surgery, Barzilay Medical Center, Ashkelon 7830604, Israel Golden, A.; Bhattacharya, B.; Levin, 8 School of Pharmaceutical Sciences, Tianjin Medical University, Tianjin 300070, China; [email protected] L.; Yegodayev, K.M.; Dimitstein, O.; 9 Department of Otolaryngology—Head and Neck Surgery, University of California San Francisco, Joshua, B.-Z.; Cohen, L.; Khrameeva, San Francisco, CA 94143, USA; [email protected] E.; et al. -
Inclusion and Exclusion Criteria for Each Key Question
Supplemental Table 1: Inclusion and exclusion criteria for each key question Chronic HBV infection in adults ≥ 18 year old (detectable HBsAg in serum for >6 months) Definition of disease Q1 Q2 Q3 Q4 Q5 Q6 Q7 HBV HBV infection with infection and persistent compensated Immunoactive Immunotolerant Seroconverted HBeAg HBV mono-infected viral load cirrhosis with Population chronic HBV chronic HBV from HBeAg to negative population under low level infection infection anti-HBe entecavir or viremia tenofovir (<2000 treatment IU/ml) Adding 2nd Stopped antiviral therapy antiviral drug Interventions and Entecavir compared Antiviral Antiviral therapy compared to continued compared to comparisons to tenofovir therapy therapy continued monotherapy Q1-2: Clinical outcomes: Cirrhosis, decompensated liver disease, HCC and death Intermediate outcomes (if evidence on clinical outcomes is limited or unavailable): HBsAg loss, HBeAg seroconversion and Outcomes HBeAg loss Q3-4: Cirrhosis, decompensated liver disease, HCC, relapse (viral and clinical) and HBsAg loss Q5: Renal function, hypophosphatemia and bone density Q6: Resistance, flare/decompensation and HBeAg loss Q7: Clinical outcomes: Cirrhosis, decompensated liver disease, HCC and death Study design RCT and controlled observational studies Acute HBV infection, children and pregnant women, HIV (+), HCV (+) or HDV (+) persons or other special populations Exclusions such as hemodialysis, transplant, and treatment failure populations. Co treatment with steroids and uncontrolled studies. Supplemental Table 2: Detailed Search Strategy: Ovid Database(s): Embase 1988 to 2014 Week 37, Ovid MEDLINE(R) In-Process & Other Non- Indexed Citations and Ovid MEDLINE(R) 1946 to Present, EBM Reviews - Cochrane Central Register of Controlled Trials August 2014, EBM Reviews - Cochrane Database of Systematic Reviews 2005 to July 2014 Search Strategy: # Searches Results 1 exp Hepatitis B/dt 26410 ("hepatitis B" or "serum hepatitis" or "hippie hepatitis" or "injection hepatitis" or 2 178548 "hepatitis type B").mp. -
(12) United States Patent (10) Patent No.: US 9.468,689 B2 Zeng Et Al
USOO9468689B2 (12) United States Patent (10) Patent No.: US 9.468,689 B2 Zeng et al. (45) Date of Patent: *Oct. 18, 2016 (54) ULTRAFILTRATION CONCENTRATION OF (56) References Cited ALLOTYPE SELECTED ANTIBODES FOR SMALL-VOLUME ADMINISTRATION U.S. PATENT DOCUMENTS 5,429,746 A 7/1995 Shadle et al. (71) Applicant: Immunomedics, Inc., Morris Plains, NJ 5,789,554 A 8/1998 Leung et al. (US) 6,171,586 B1 1/2001 Lam et al. 6,187,287 B1 2/2001 Leung et al. (72) Inventors: Li Zeng, Edison, NJ (US); Rohini 6,252,055 B1 6/2001 Relton Mitra, Brigdewater, NJ (US); Edmund 6,676,924 B2 1/2004 Hansen et al. 6,870,034 B2 3/2005 Breece et al. A. Rossi, Woodland Park, NJ (US); 6,893,639 B2 5/2005 Levy et al. Hans J. Hansen, Picayune, MS (US); 6,991,790 B1 1/2006 Lam et al. David M. Goldenberg, Mendham, NJ 7,038,017 B2 5, 2006 Rinderknecht et al. (US) 7,074,403 B1 7/2006 Goldenberg et al. 7,109,304 B2 9, 2006 Hansen et al. 7,138,496 B2 11/2006 Hua et al. (73) Assignee: Immunomedics, Inc., Morris Plains, NJ 7,151,164 B2 * 12/2006 Hansen et al. ............. 530,387.3 (US) 7,238,785 B2 7/2007 Govindan et al. 7,251,164 B2 7/2007 Okhonin et al. (*) Notice: Subject to any disclaimer, the term of this 7.282,567 B2 10/2007 Goldenberg et al. patent is extended or adjusted under 35 7,300,655 B2 11/2007 Hansen et al. -
DRUGS REQUIRING PRIOR AUTHORIZATION in the MEDICAL BENEFIT Page 1
Effective Date: 08/01/2021 DRUGS REQUIRING PRIOR AUTHORIZATION IN THE MEDICAL BENEFIT Page 1 Therapeutic Category Drug Class Trade Name Generic Name HCPCS Procedure Code HCPCS Procedure Code Description Anti-infectives Antiretrovirals, HIV CABENUVA cabotegravir-rilpivirine C9077 Injection, cabotegravir and rilpivirine, 2mg/3mg Antithrombotic Agents von Willebrand Factor-Directed Antibody CABLIVI caplacizumab-yhdp C9047 Injection, caplacizumab-yhdp, 1 mg Cardiology Antilipemic EVKEEZA evinacumab-dgnb C9079 Injection, evinacumab-dgnb, 5 mg Cardiology Hemostatic Agent BERINERT c1 esterase J0597 Injection, C1 esterase inhibitor (human), Berinert, 10 units Cardiology Hemostatic Agent CINRYZE c1 esterase J0598 Injection, C1 esterase inhibitor (human), Cinryze, 10 units Cardiology Hemostatic Agent FIRAZYR icatibant J1744 Injection, icatibant, 1 mg Cardiology Hemostatic Agent HAEGARDA c1 esterase J0599 Injection, C1 esterase inhibitor (human), (Haegarda), 10 units Cardiology Hemostatic Agent ICATIBANT (generic) icatibant J1744 Injection, icatibant, 1 mg Cardiology Hemostatic Agent KALBITOR ecallantide J1290 Injection, ecallantide, 1 mg Cardiology Hemostatic Agent RUCONEST c1 esterase J0596 Injection, C1 esterase inhibitor (recombinant), Ruconest, 10 units Injection, lanadelumab-flyo, 1 mg (code may be used for Medicare when drug administered under Cardiology Hemostatic Agent TAKHZYRO lanadelumab-flyo J0593 direct supervision of a physician, not for use when drug is self-administered) Cardiology Pulmonary Arterial Hypertension EPOPROSTENOL (generic) -
BLA 761125 Page 7
BLA 761125 Page 7 HIGHLIGHTS OF PRESCRIBING INFORMATION -----------------------WARNINGS AND PRECAUTIONS---------------------- These highlights do not include all the information needed to use BEOVU Endophthalmitis and retinal detachments may occur following intravitreal safely and effectively. See full prescribing information for BEOVU. injections. Patients should be instructed to report any symptoms suggestive of endophthalmitis or retinal detachment without delay (5.1). BEOVU® (brolucizumab-dbll) injection, for intravitreal injection Increases in intraocular pressure (IOP) have been seen within 30 minutes of Initial U.S. Approval: 2019 an intravitreal injection (5.2). ----------------------------INDICATIONS AND USAGE------------------------- There is a potential risk of arterial thromboembolic events (ATE) following BEOVU is a human vascular endothelial growth factor (VEGF) inhibitor intravitreal use of VEGF inhibitors (5.3). indicated for the treatment of Neovascular (Wet) Age-Related Macular ------------------------------ADVERSE REACTIONS----------------------------- Degeneration (AMD) (1). The most common adverse reactions (≥ 5%) reported in patients receiving ----------------------DOSAGE AND ADMINISTRATION---------------------- BEOVU are vision blurred (10%), cataract (7%), conjunctival hemorrhage BEOVU is administered by intravitreal injection. The recommended dose for (6%), eye pain (5%), and vitreous floaters (5%) (6.1). BEOVU is 6 mg (0.05 mL of 120 mg/mL solution) monthly (approximately To report SUSPECTED ADVERSE REACTIONS, contact Novartis every 25-31 days) for the first three doses, followed by one dose of 6 mg (0.05 Pharmaceuticals Corporation at 1-888-669-6682 or FDA at 1-800-FDA mL) every 8-12 weeks (2). 1088 or www.fda.gov/medwatch. ---------------------DOSAGE FORMS AND STRENGTHS-------------------- See 17 for PATIENT COUNSELING INFORMATION. Injection: 6 mg/0.05 mL solution for intravitreal injection in a single-dose vial (3). -
Mechanism of Interleukin-1- and Tumor Necrosis Factor Α-Dependent Regulation of the Α1-Antichymotrypsin Gene in Human Astrocyt
The Journal of Neuroscience, October 15, 2000, 20(20):7510–7516 Mechanism of Interleukin-1- and Tumor Necrosis Factor ␣- ␣ Dependent Regulation of the 1-Antichymotrypsin Gene in Human Astrocytes Tomasz Kordula,1 Marcin Bugno,1 Russell E. Rydel,2 and James Travis3 1Institute of Molecular Biology, Jagiellonian University, 31-120 Krako´ w, Poland, 2Elan Pharmaceuticals, South San Francisco, California 94080, and 3Department of Biochemistry and Molecular Biology, The University of Georgia, Athens, Georgia 30602 ␣ The expression of 1-antichymotrypsin (ACT) is significantly en- which bind nuclear factor kB (NF-kB) and one that binds activat- hanced in affected brain regions in Alzheimer’s disease. This ing protein 1 (AP-1). All of these elements contribute to the full serine proteinase inhibitor specifically colocalizes with filamen- responsiveness of the ACT gene to both cytokines, as deter- tous -amyloid deposits and recently has been shown to influ- mined by deletion and mutational analysis. The 5Ј NF-kB high- ence both formation and destabilization of -amyloid fibrils. In affinity binding site and AP-1 element contribute most to the the brain, ACT is expressed in astrocytes, and interleukin-1 (IL-1), enhancement of gene transcription in response to TNF and IL-1. tumor necrosis factor ␣ (TNF), oncostatin M (OSM), and IL-6/ In addition, we demonstrate that the 5Ј untranslated region of the soluble IL-6 receptor complexes control synthesis of this inhibi- ACT mRNA does not contribute to cytokine-mediated activation. tor. Here, we characterize a molecular mechanism responsible Finally, we find that overexpression of the NF-kB inhibitor (IkB) for both IL-1 and TNF-induced expression of ACT gene in astro- totally inhibits any activation mediated by the newly identified cytes. -
A Folding Switch Regulates Interleukin 27 Biogenesis and Secretion of Its Α-Subunit As a Cytokine
A folding switch regulates interleukin 27 biogenesis and secretion of its α-subunit as a cytokine Stephanie I. Müllera,b, Antonie Friedlc, Isabel Aschenbrennera,b, Julia Esser-von Bierenc, Martin Zachariasd, Odile Devergnee,1, and Matthias J. Feigea,b,1 aCenter for Integrated Protein Science, Department of Chemistry, Technical University of Munich, 85748 Garching, Germany; bInstitute for Advanced Study, Technical University of Munich, 85748 Garching, Germany; cCenter of Allergy and Environment (ZAUM), Technical University of Munich and Helmholtz Center Munich, 80802 Munich, Germany; dCenter for Integrated Protein Science, Physics Department, Technical University of Munich, 85748 Garching, Germany; and eSorbonne Université, INSERM, CNRS, Centre d’Immunologie et des Maladies Infectieuses, 75 013 Paris, France Edited by John J. O’Shea, NIH, Bethesda, MD, and accepted by Editorial Board Member Tadatsugu Taniguchi December 10, 2018 (received for review October 3, 2018) A common design principle of heteromeric signaling proteins is the by the secretion and biological activity of some isolated α-and use of shared subunits. This allows encoding of complex messages β-subunits (10, 11). A prominent example is IL-27α/p28. Murine IL- while maintaining evolutionary flexibility. How cells regulate and 27α, also designated as IL-30, is secreted in isolation (12) and per- control assembly of such composite signaling proteins remains an forms immunoregulatory roles (13–16). In contrast, no autonomous important open question. An example of particular complexity and secretion of human IL-27α has been reported yet. The molecular biological relevance is the interleukin 12 (IL-12) family. Four func- basis for this difference has remained unclear, but it is likely to have tionally distinct αβ heterodimers are assembled from only five sub- a profound impact on immune system function, since in mice IL-27 units to regulate immune cell function and development.