1
|
Uziel A, Milay L, Procaccia S, Cohen R, Burstein A, Sulimani L, Shreiber-Livne I, Lewitus D, Meiri D. Solid-State Microwave Drying for Medical Cannabis Inflorescences: A Rapid and Controlled Alternative to Traditional Drying. Cannabis Cannabinoid Res 2024; 9:397-408. [PMID: 35944268 PMCID: PMC10874826 DOI: 10.1089/can.2022.0051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Introduction: As the medical use of Cannabis is evolving there is a greater demand for high-quality products for patients. One of the main steps in the manufacturing process of medical Cannabis is drying. Most current drying methods in the Cannabis industry are relatively slow and inefficient processes. Materials and Methods: This article presents a drying method based on solid-state microwave (MW) that provides fast and uniform drying, and examines its efficiency for drying Cannabis inflorescences compared with the traditional drying method. We assessed 67 cannabinoids and 36 terpenoids in the plant in a range of drying temperatures (40°C, 50°C, 60°C, and 80°C). The identification and quantification of these secondary metabolites were done by chromatography methods. Results: This method resulted in a considerable reduction of drying time, from several days to a few hours. The multiple frequency-phase combination states of the system allowed control and prediction of moisture levels during drying, thus preventing overdrying. A drying temperature of 50°C provided the most effective results in terms of both short drying time and preservation of the composition of the secondary metabolites compared with traditional drying. At 50°C, the chemical profile of phytocannabinoids and terpenoids was best kept to that of the original plant before drying, suggesting less degradation by chemical reactions such as decarboxylation. The fast-drying time also reduced the susceptibility of the plant to microbial contamination. Conclusion: Our results support solid-state MW drying as an effective postharvest step to quickly dry the plant material for improved downstream processing with a minimal negative impact on product quality.
Collapse
Affiliation(s)
- Almog Uziel
- The Laboratory of Cancer Biology and Cannabinoid Research, Faculty of Biology, Technion - Israel Institute of Technology, Haifa, Israel
- The Russell Berrie Nanotechnology Institute, Technion - Israel Institute of Technology, Haifa, Israel
| | | | - Shiri Procaccia
- The Laboratory of Cancer Biology and Cannabinoid Research, Faculty of Biology, Technion - Israel Institute of Technology, Haifa, Israel
| | | | | | | | - Inbar Shreiber-Livne
- The Laboratory of Cancer Biology and Cannabinoid Research, Faculty of Biology, Technion - Israel Institute of Technology, Haifa, Israel
- The Russell Berrie Nanotechnology Institute, Technion - Israel Institute of Technology, Haifa, Israel
| | - Dan Lewitus
- Department of Polymer Materials Engineering, Shenkar College of Engineering, Design and Art, Ramat Gan, Israel
| | - David Meiri
- The Laboratory of Cancer Biology and Cannabinoid Research, Faculty of Biology, Technion - Israel Institute of Technology, Haifa, Israel
| |
Collapse
|
2
|
Shreiber-Livne I, Sulimani L, Shapira A, Procaccia S, Meiri D, Sosnik A. Poly(ethylene glycol)-b-poly(epsilon-caprolactone) nanoparticles as a platform for the improved oral delivery of cannabidiol. Drug Deliv Transl Res 2023; 13:3192-3203. [PMID: 37341881 DOI: 10.1007/s13346-023-01380-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/13/2023] [Indexed: 06/22/2023]
Abstract
Cannabidiol (CBD), a non-psychoactive constituent of Cannabis, has proven neuroprotective, anti-inflammatory and antioxidant properties though his therapeutic use, especially by the oral route, is still challenged by the poor aqueous solubility that results in low oral bioavailability. In this work, we investigate the encapsulation of CBD within nanoparticles of a highly hydrophobic poly(ethylene glycol)-b-poly(epsilon-caprolactone) block copolymer produced by a simple and reproducible nanoprecipitation method. The encapsulation efficiency is ~ 100% and the CBD loading 11% w/w (high performance liquid chromatography). CBD-loaded nanoparticles show a monomodal size distribution with sizes of up to 100 nm (dynamic light scattering), a spherical morphology, and the absence of CBD crystals (high resolution-scanning electron microscopy and cryogenic-transmission electron microscopy) which is in line with a very efficient nanoencapsulation. Then, the CBD release profile from the nanoparticles is assessed under gastric- and intestine-like conditions. At pH 1.2, only 10% of the payload is released after 1 h. Conversely, at pH 6.8, a release of 80% is recorded after 2 h. Finally, the oral pharmacokinetics is investigated in rats and compared to a free CBD suspension. CBD-loaded nanoparticles lead to a statistically significant ~ 20-fold increase of the maximum drug concentration in plasma (Cmax) and a shortening of the time to the Cmax (tmax) from 4 to 0.3 h, indicating a more complete and faster absorption than in free form. Moreover, the area-under-the-curve (AUC), a measure of oral bioavailability, increased by 14 times. Overall results highlight the promise of this simple, reproducible, and scalable nanotechnology strategy to improve the oral performance of CBD with respect to common oily formulations and/or lipid-based drug delivery systems associated with systemic adverse effects.
Collapse
Affiliation(s)
- Inbar Shreiber-Livne
- Laboratory of Pharmaceutical Nanomaterials Science, Department of Materials Science and Engineering, Technion - Israel Institute of Technology, Technion City, Haifa, 320003, Israel
- Laboratory of Cancer Biology and Cannabinoid Research, Department of Biology, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
- Russell Berrie Nanotechnology Institute, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Liron Sulimani
- The Kleifeld Laboratory, Department of Biology, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
- CannaSoul Analytics, Caesarea, 3099109, Israel
| | - Anna Shapira
- Laboratory of Cancer Biology and Cannabinoid Research, Department of Biology, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Shiri Procaccia
- Laboratory of Cancer Biology and Cannabinoid Research, Department of Biology, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - David Meiri
- Laboratory of Cancer Biology and Cannabinoid Research, Department of Biology, Technion - Israel Institute of Technology, Haifa, 3200003, Israel.
| | - Alejandro Sosnik
- Laboratory of Pharmaceutical Nanomaterials Science, Department of Materials Science and Engineering, Technion - Israel Institute of Technology, Technion City, Haifa, 320003, Israel.
| |
Collapse
|
3
|
Aviram J, Glezerman M, Hayam E, Belobrov R, Procaccia S, Meiri D, Eisenberg E. Evaluating Sex Differences in Efficacy, Safety and Pharmacokinetics in Patients Treated with Cannabis by a Metered-Dose Inhaler. Pharmaceuticals (Basel) 2023; 16:1426. [PMID: 37895897 PMCID: PMC10610259 DOI: 10.3390/ph16101426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/03/2023] [Accepted: 10/06/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND Clinical studies on medical cannabis (MC) treatment have shown sex-related differences, including higher susceptibility to adverse events among women and greater analgesia among men. Here, we used the Syqe metered-dose inhaler (MDI) and a single chemovar to analyze sex differences. METHODS A total of 1249 Israeli chronic pain patients were assessed for pain intensity, sleep and adverse events (AEs) over 240 days. RESULTS Following the first two weeks, no significant sex differences were found in the effectiveness or safety of MC treatment (p > 0.05). Inhaled Δ9-THC doses did not vary significantly between sexes (p > 0.05) except in the first month of treatment. Pain reduction and sleep improvement were similar for both sexes (p > 0.05). The overall rate of AEs was equal and relatively low at 10% (n = 65, 10% of women and n = 60, 10% of men; χ2 (1) = 0.05, p = 0.820). A secondary analysis of pharmacokinetic data showed no significant differences between sexes in Δ9-THC and its metabolite pharmacokinetics, cardiovascular measures, or AE severity (p > 0.05). CONCLUSIONS Uniform MC treatment via the Syqe MDI showed no sex differences in short-term effectiveness, safety and pharmacokinetics, nor in long-term effects, under "real-life" conditions. These findings provide insights into MC treatment which may inform clinical practice and policy-making in the field.
Collapse
Affiliation(s)
| | - Marek Glezerman
- Faculty of Medicine and Head, Gender- and Sex Conscious Medicine, Tel Aviv University, Tel Aviv 69978, Israel
| | | | | | - Shiri Procaccia
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - David Meiri
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Elon Eisenberg
- Rappaport Faculty of Medicine-Technion, Israel Institute of Technology, Haifa 3525433, Israel
| |
Collapse
|
4
|
Wyrobnik I, Steinberg M, Gelfand A, Rosenblum R, Eid Mutlak Y, Sulimani L, Procaccia S, Ofran Y, Novak-Kotzer H, Meiri D. Decreased melanoma CSF-1 secretion by Cannabigerol treatment reprograms regulatory myeloid cells and reduces tumor progression. Oncoimmunology 2023; 12:2219164. [PMID: 37325437 PMCID: PMC10262794 DOI: 10.1080/2162402x.2023.2219164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 05/24/2023] [Accepted: 05/24/2023] [Indexed: 06/17/2023] Open
Abstract
During solid tumor progression, the tumor microenvironment (TME) evolves into a highly immunosuppressive milieu. Key players in the immunosuppressive environment are regulatory myeloid cells, including myeloid-derived suppressor cells (MDSCs) and tumor-associated macrophages (TAMs), which are recruited and activated via tumor-secreted cytokines such as colony-stimulating factor 1 (CSF-1). Therefore, the depletion of tumor-secreted cytokines is a leading anticancer strategy. Here, we found that CSF-1 secretion by melanoma cells is decreased following treatment with Cannabis extracts. Cannabigerol (CBG) was identified as the bioactive cannabinoid responsible for the effects. Conditioned media from cells treated with pure CBG or the high-CBG extract reduced the expansion and macrophage transition of the monocytic-MDSC subpopulation. Treated MO-MDSCs also expressed lower levels of iNOS, leading to restored CD8+ T-cell activation. Tumor-bearing mice treated with CBG presented reduced tumor progression, lower TAM frequencies and reduced TAM/M1 ratio. A combination of CBG and αPD-L1 was more effective in reducing tumor progression, enhancing survival and increasing the infiltration of activated cytotoxic T-cells than each treatment separately. We show a novel mechanism for CBG in modulating the TME and enhancing immune checkpoint blockade therapy, underlining its promising therapeutic potential for the treatment of a variety of tumors with elevated CSF-1 expression.
Collapse
Affiliation(s)
- Iris Wyrobnik
- The Laboratory of Cancer Biology and Cannabinoid Research, Department of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Miryam Steinberg
- The Laboratory of Cancer Biology and Cannabinoid Research, Department of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Anat Gelfand
- The Laboratory of Cancer Biology and Cannabinoid Research, Department of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Ronen Rosenblum
- The Laboratory of Cancer Biology and Cannabinoid Research, Department of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Yara Eid Mutlak
- The Laboratory of Cancer Biology and Cannabinoid Research, Department of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Liron Sulimani
- The Kleifeld Laboratory, Department of Biology, Technion-Israel Institute of Technology, Haifa, Israel
- Cannasoul Analytics, Caesarea, Israel
| | - Shiri Procaccia
- The Laboratory of Cancer Biology and Cannabinoid Research, Department of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Yishai Ofran
- Department of Hematology, Shaare Zedek Medical Center and Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Hila Novak-Kotzer
- The Laboratory of Cancer Biology and Cannabinoid Research, Department of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - David Meiri
- The Laboratory of Cancer Biology and Cannabinoid Research, Department of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| |
Collapse
|
5
|
Blal K, Besser E, Procaccia S, Schwob O, Lerenthal Y, Abu Tair J, Meiri D, Benny O. Correction: Blal et al. The Effect of Cannabis Plant Extracts on Head and Neck Squamous Cell Carcinoma and the Quest for Cannabis-Based Personalized Therapy. Cancers 2023, 15, 497. Cancers (Basel) 2023; 15:cancers15092481. [PMID: 37174129 PMCID: PMC10177472 DOI: 10.3390/cancers15092481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 04/20/2023] [Indexed: 05/15/2023] Open
Abstract
In the original publication [...].
Collapse
Affiliation(s)
- Kifah Blal
- Department of Oral and Maxillofacial Surgery, Hadassah Medical Center, Faculty of Dental Medicine, The Hebrew University of Jerusalem, Jerusalem 9112102, Israel
- Department of Pharmaceutical Science, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112002, Israel
| | - Elazar Besser
- Laboratory of Cancer Biology and Cannabinoid Research, Department of Biology, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Shiri Procaccia
- Laboratory of Cancer Biology and Cannabinoid Research, Department of Biology, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Ouri Schwob
- Department of Pharmaceutical Science, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112002, Israel
| | | | - Jawad Abu Tair
- Department of Oral and Maxillofacial Surgery, Hadassah Medical Center, Faculty of Dental Medicine, The Hebrew University of Jerusalem, Jerusalem 9112102, Israel
| | - David Meiri
- Laboratory of Cancer Biology and Cannabinoid Research, Department of Biology, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Ofra Benny
- Department of Pharmaceutical Science, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112002, Israel
| |
Collapse
|
6
|
Besser E, Gelfand A, Lewitus GM, Novak-Kotzer H, Procaccia S, Berman P, Louria-Hayon I, Shreiber-Livne I, Ofran Y, Meiri D. Antitumoral effects of cannabis in Notch1-mutated T-cell acute lymphoblastic leukemia. Cancer Commun (Lond) 2023. [PMID: 37086009 DOI: 10.1002/cac2.12422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 01/16/2023] [Accepted: 04/03/2023] [Indexed: 04/23/2023] Open
Affiliation(s)
- Elazar Besser
- The Laboratory of Cancer Biology and Cannabinoid Research, Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Anat Gelfand
- The Laboratory of Cancer Biology and Cannabinoid Research, Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Gil Moshe Lewitus
- The Laboratory of Cancer Biology and Cannabinoid Research, Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Hila Novak-Kotzer
- The Laboratory of Cancer Biology and Cannabinoid Research, Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Shiri Procaccia
- The Laboratory of Cancer Biology and Cannabinoid Research, Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Paula Berman
- The Laboratory of Cancer Biology and Cannabinoid Research, Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Igal Louria-Hayon
- The Laboratory of Cancer Biology and Cannabinoid Research, Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Inbar Shreiber-Livne
- The Laboratory of Cancer Biology and Cannabinoid Research, Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Yishai Ofran
- Department of Hematology and Bone Marrow Transplantation, Rambam Health Care Campus, Haifa, Israel
| | - David Meiri
- The Laboratory of Cancer Biology and Cannabinoid Research, Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| |
Collapse
|
7
|
Blal K, Besser E, Procaccia S, Schwob O, Lerenthal Y, Abu Tair J, Meiri D, Benny O. The Effect of Cannabis Plant Extracts on Head and Neck Squamous Cell Carcinoma and the Quest for Cannabis-Based Personalized Therapy. Cancers (Basel) 2023; 15:cancers15020497. [PMID: 36672446 PMCID: PMC9856564 DOI: 10.3390/cancers15020497] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/09/2023] [Accepted: 01/11/2023] [Indexed: 01/15/2023] Open
Abstract
Cannabis sativa plants have a wide diversity in their metabolite composition among their different chemovars, facilitating diverse anti-tumoral effects on cancer cells. This research examined the anti-tumoral effects of 24 cannabis extracts representative of three primary types of chemovars on head and neck squamous cell carcinoma (HNSCC). The chemical composition of the extracts was determined using High-Performance Liquid Chromatography (HPLC) and Mass Spectrometry (MS). The most potent anti-tumoral extracts were type III decarboxylated extracts, with high levels of Cannabidiol (CBD). We identified extract 296 (CAN296) as the most potent in inducing HNSCC cell death via proapoptotic and anti-proliferative effects. Using chemical fractionation of CAN296, we identified the CBD fraction as the primary inducer of the anti-tumoral activity. We succeeded in defining the combination of CBD with cannabichromene (CBC) or tetrahydrocannabinol (THC) present in minute concentrations in the extract, yielding a synergic impact that mimics the extract's full effect. The cytotoxic effect could be maximized by combining CBD with either CBC or THC in a ratio of 2:1. This research suggests using decarboxylated CBD-type extracts enriched with CBC for future preclinical trials aimed at HNSCC treatment.
Collapse
Affiliation(s)
- Kifah Blal
- Department of Oral and Maxillofacial Surgery, Hadassah Medical Center, Faculty of Dental Medicine, The Hebrew University of Jerusalem, Jerusalem 9112102, Israel
- Department of Pharmaceutical Science, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112002, Israel
| | - Elazar Besser
- Laboratory of Cancer Biology and Cannabinoid Research, Department of Biology, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Shiri Procaccia
- Laboratory of Cancer Biology and Cannabinoid Research, Department of Biology, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Ouri Schwob
- Department of Pharmaceutical Science, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112002, Israel
| | | | - Jawad Abu Tair
- Department of Oral and Maxillofacial Surgery, Hadassah Medical Center, Faculty of Dental Medicine, The Hebrew University of Jerusalem, Jerusalem 9112102, Israel
| | - David Meiri
- Laboratory of Cancer Biology and Cannabinoid Research, Department of Biology, Technion-Israel Institute of Technology, Haifa 3200003, Israel
- Correspondence: (D.M.); (O.B.); Tel.: +972-52-5330031 (D.M.); +972-52-8461462 (O.B.)
| | - Ofra Benny
- Department of Pharmaceutical Science, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112002, Israel
- Correspondence: (D.M.); (O.B.); Tel.: +972-52-5330031 (D.M.); +972-52-8461462 (O.B.)
| |
Collapse
|
8
|
Aviram J, Procaccia S, Vysotski Y, Meiri D. Reply to Montmeat et al. Pain 2022; 163:e1220-e1221. [DOI: 10.1097/j.pain.0000000000002772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
9
|
Aviram J, Lewitus GM, Vysotski Y, Amna MA, Ouryvaev A, Procaccia S, Cohen I, Leibovici A, Akria L, Goncharov D, Mativ N, Kauffman A, Shai A, Bar-Sela G, Meiri D. The Effectiveness and Safety of Medical Cannabis for Treating Cancer Related Symptoms in Oncology Patients. Front Pain Res (Lausanne) 2022; 3:861037. [PMID: 35669038 PMCID: PMC9163497 DOI: 10.3389/fpain.2022.861037] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 04/25/2022] [Indexed: 12/12/2022] Open
Abstract
The use of medical cannabis (MC) to treat cancer-related symptoms is rising. However, there is a lack of long-term trials to assess the benefits and safety of MC treatment in this population. In this work, we followed up prospectively and longitudinally on the effectiveness and safety of MC treatment. Oncology patients reported on multiple symptoms before and after MC treatment initiation at one-, three-, and 6-month follow-ups. Oncologists reported on the patients' disease characteristics. Intention-to-treat models were used to assess changes in outcomes from baseline. MC treatment was initiated by 324 patients and 212, 158 and 126 reported at follow-ups. Most outcome measures improved significantly during MC treatment for most patients (p < 0.005). Specifically, at 6 months, total cancer symptoms burden declined from baseline by a median of 18%, from 122 (82-157) at baseline to 89 (45-138) at endpoint (-18.98; 95%CI= -26.95 to -11.00; p < 0.001). Reported adverse effects were common but mostly non-serious and remained stable during MC treatment. The results of this study suggest that MC treatment is generally safe for oncology patients and can potentially reduce the burden of associated symptoms with no serious MC-related adverse effects.
Collapse
Affiliation(s)
- Joshua Aviram
- Faculty of Biology, Biology Department, Technion-Israel Institute of Technology, Haifa, Israel
| | - Gil M. Lewitus
- Faculty of Biology, Biology Department, Technion-Israel Institute of Technology, Haifa, Israel
| | - Yelena Vysotski
- Faculty of Biology, Biology Department, Technion-Israel Institute of Technology, Haifa, Israel
| | | | - Anton Ouryvaev
- Department of Oncology, Galilee Medical Center, Nahariya, Israel
| | - Shiri Procaccia
- Faculty of Biology, Biology Department, Technion-Israel Institute of Technology, Haifa, Israel
| | - Idan Cohen
- Cancer Center, HaEmek Medical Center, Afula, Israel
| | - Anca Leibovici
- Department of Oncology, Galilee Medical Center, Nahariya, Israel
| | - Luiza Akria
- Department of Oncology, Galilee Medical Center, Nahariya, Israel
| | | | - Neomi Mativ
- Department of Oncology, Galilee Medical Center, Nahariya, Israel
| | - Avia Kauffman
- Department of Oncology, Galilee Medical Center, Nahariya, Israel
| | - Ayelet Shai
- Department of Oncology, Galilee Medical Center, Nahariya, Israel
- Azrielly Faculty of Medicine, Bar Ilan University, Zafed, Israel
| | - Gil Bar-Sela
- Cancer Center, HaEmek Medical Center, Afula, Israel
- Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - David Meiri
- Faculty of Biology, Biology Department, Technion-Israel Institute of Technology, Haifa, Israel
| |
Collapse
|
10
|
Kirolos SA, Procaccia S, Groover KE, Das R, Rijal R, Gomer RH. Identification of novel proteins in the Dictyostelium discoideum chemorepulsion pathway using REMI. MicroPubl Biol 2022; 2022:10.17912/micropub.biology.000557. [PMID: 35622529 PMCID: PMC9073555 DOI: 10.17912/micropub.biology.000557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 04/18/2022] [Accepted: 05/05/2022] [Indexed: 11/06/2022]
Abstract
Chemorepulsion, the biased migration of a cell away from a signal, is essential for many biological processes and the ability to manipulate chemorepulsion could lead to new therapeutics for a variety of diseases. However, little is known about eukaryotic cell chemorepulsion. Utilizing the model organism Dictyostelium discoideum, we previously identified an endogenous chemorepellent protein secreted by D. discoideum cells called AprA, and proteins involved in the AprA-induced chemorepulsion pathway including the G protein-coupled receptor GrlH, G beta and G protein alpha 8 protein subunits, protein kinase A, components of the mammalian target of rapamycin complex 2 (mTORC2), phospholipase A, PTEN and a PTEN-like phosphatase (CnrN), a retinoblastoma orthologue (RblA), extracellular signal-regulated kinase 1 (Erk1), p-21 activated protein kinase D (PakD), and the Ras proteins RasC and RasG. In this report, we used a genetic screen to identify 17 additional proteins involved in the AprA-induced chemorepulsion pathway .
Collapse
Affiliation(s)
| | - Shiri Procaccia
- Department of Biology, Texas A&M University
,
Faculty of Biology, Technion - Israel Institute of Technology
| | | | | | | | - Richard H Gomer
- Department of Biology, Texas A&M University
,
Correspondence to: Richard H Gomer (
)
| |
Collapse
|
11
|
Aviram J, Lewitus GM, Vysotski Y, Berman P, Shapira A, Procaccia S, Meiri D. Sex differences in medical cannabis-related adverse effects. Pain 2022; 163:975-983. [PMID: 34538843 PMCID: PMC9009319 DOI: 10.1097/j.pain.0000000000002463] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 08/11/2021] [Accepted: 08/18/2021] [Indexed: 12/04/2022]
Abstract
ABSTRACT Studies have shown that women are more susceptible to adverse effects (AEs) from conventional drugs. This study aimed to investigate the differences of medical cannabis (MC)-related AEs between women and men in patients with chronic noncancer pain (CNCP). This is a cross-sectional study of adult patients licensed for MC treatment who were also diagnosed as patients with CNCP by a physician. Data included self-reported questionnaires and comprehensive MC treatment information. Simultaneously, identification and quantification of phytocannabinoids and terpenoids from the MC cultivars were performed. Comparative statistics were used to evaluate differences between men and women. Four hundred twenty-nine patients with CNCP (64% males) reported fully on their MC treatment. Subgrouping by sex demonstrated that the weight-adjusted doses were similar between men and women (0.48 [0.33-0.6] gr for men and 0.47 [0.34-0.66] gr for women). Nonetheless, women reported more than men on MC-related AEs. Further analysis revealed that women consumed different MC cultivar combinations than men, with significantly higher monthly doses of the phytocannabinoids CBD and CBC and significantly lower monthly doses of the phytocannabinoid 373-15c and the terpenoid linalool. Our findings demonstrate sex differences in MC-related AEs among patients with CNCP. Women are more susceptible to MC-related AEs, presumably because of both the inherent sex effect and the consumption of specific phytocannabinoid compositions in the MC cultivar(s). The understanding of these differences may be crucial for planning MC treatments with safer phytocannabinoid and terpenoid compositions and to better inform patients of expected AEs.
Collapse
Affiliation(s)
- Joshua Aviram
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Gil M. Lewitus
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Yelena Vysotski
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Paula Berman
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Anna Shapira
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Shiri Procaccia
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - David Meiri
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| |
Collapse
|
12
|
Procaccia S, Lewitus GM, Lipson Feder C, Shapira A, Berman P, Meiri D. Cannabis for Medical Use: Versatile Plant Rather Than a Single Drug. Front Pharmacol 2022; 13:894960. [PMID: 35548332 PMCID: PMC9081504 DOI: 10.3389/fphar.2022.894960] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 03/28/2022] [Indexed: 12/05/2022] Open
Abstract
Medical Cannabis and its major cannabinoids (−)-trans-Δ9-tetrahydrocannabinol (THC) and cannabidiol (CBD) are gaining momentum for various medical purposes as their therapeutic qualities are becoming better established. However, studies regarding their efficacy are oftentimes inconclusive. This is chiefly because Cannabis is a versatile plant rather than a single drug and its effects do not depend only on the amount of THC and CBD. Hundreds of Cannabis cultivars and hybrids exist worldwide, each with a unique and distinct chemical profile. Most studies focus on THC and CBD, but these are just two of over 140 phytocannabinoids found in the plant in addition to a milieu of terpenoids, flavonoids and other compounds with potential therapeutic activities. Different plants contain a very different array of these metabolites in varying relative ratios, and it is the interplay between these molecules from the plant and the endocannabinoid system in the body that determines the ultimate therapeutic response and associated adverse effects. Here, we discuss how phytocannabinoid profiles differ between plants depending on the chemovar types, review the major factors that affect secondary metabolite accumulation in the plant including the genotype, growth conditions, processing, storage and the delivery route; and highlight how these factors make Cannabis treatment highly complex.
Collapse
|
13
|
Lipson Feder C, Cohen O, Shapira A, Katzir I, Peer R, Guberman O, Procaccia S, Berman P, Flaishman M, Meiri D. Fertilization Following Pollination Predominantly Decreases Phytocannabinoids Accumulation and Alters the Accumulation of Terpenoids in Cannabis Inflorescences. Front Plant Sci 2021; 12:753847. [PMID: 34804093 PMCID: PMC8602813 DOI: 10.3389/fpls.2021.753847] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 10/04/2021] [Indexed: 06/13/2023]
Abstract
In the last decades, growing evidence showed the therapeutic capabilities of Cannabis plants. These capabilities were attributed to the specialized secondary metabolites stored in the glandular trichomes of female inflorescences, mainly phytocannabinoids and terpenoids. The accumulation of the metabolites in the flower is versatile and influenced by a largely unknown regulation system, attributed to genetic, developmental and environmental factors. As Cannabis is a dioecious plant, one main factor is fertilization after successful pollination. Fertilized flowers are considerably less potent, likely due to changes in the contents of phytocannabinoids and terpenoids; therefore, this study examined the effect of fertilization on metabolite composition by crossbreeding (-)-Δ9-trans-tetrahydrocannabinol (THC)- or cannabidiol (CBD)-rich female plants with different male plants: THC-rich, CBD-rich, or the original female plant induced to develop male pollen sacs. We used advanced analytical methods to assess the phytocannabinoids and terpenoids content, including a newly developed semi-quantitative analysis for terpenoids without analytical standards. We found that fertilization significantly decreased phytocannabinoids content. For terpenoids, the subgroup of monoterpenoids had similar trends to the phytocannabinoids, proposing both are commonly regulated in the plant. The sesquiterpenoids remained unchanged in the THC-rich female and had a trend of decrease in the CBD-rich female. Additionally, specific phytocannabinoids and terpenoids showed an uncommon increase in concentration followed by fertilization with particular male plants. Our results demonstrate that although the profile of phytocannabinoids and their relative ratios were kept, fertilization substantially decreased the concentration of nearly all phytocannabinoids in the plant regardless of the type of fertilizing male. Our findings may point to the functional roles of secondary metabolites in Cannabis.
Collapse
Affiliation(s)
- Carni Lipson Feder
- The Laboratory of Cancer Biology and Cannabinoid Research, Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Oded Cohen
- Agricultural Research Organization (ARO), Volcani Center, Institute of Plant Sciences, Rishon LeZion, Israel
| | - Anna Shapira
- The Laboratory of Cancer Biology and Cannabinoid Research, Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Itay Katzir
- Agricultural Research Organization (ARO), Volcani Center, Institute of Plant Sciences, Rishon LeZion, Israel
| | - Reut Peer
- Agricultural Research Organization (ARO), Volcani Center, Institute of Plant Sciences, Rishon LeZion, Israel
| | - Ohad Guberman
- The Laboratory of Cancer Biology and Cannabinoid Research, Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Shiri Procaccia
- The Laboratory of Cancer Biology and Cannabinoid Research, Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Paula Berman
- The Laboratory of Cancer Biology and Cannabinoid Research, Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Moshe Flaishman
- Agricultural Research Organization (ARO), Volcani Center, Institute of Plant Sciences, Rishon LeZion, Israel
| | - David Meiri
- The Laboratory of Cancer Biology and Cannabinoid Research, Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| |
Collapse
|
14
|
Aviram J, Lewitus GM, Pud D, Procaccia S, Berman P, Yellin B, Vysotski Y, Hazan O, Eisenberg E, Meiri D. Specific phytocannabinoid compositions are associated with analgesic response and adverse effects in chronic pain patients treated with medical cannabis. Pharmacol Res 2021; 169:105651. [PMID: 34000362 DOI: 10.1016/j.phrs.2021.105651] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 04/21/2021] [Accepted: 04/26/2021] [Indexed: 12/19/2022]
Abstract
Medical cannabis (MC) treatment for chronic pain is increasing, but evidence regarding short- and long-term efficacy and associated adverse effects (AEs) of the different cannabis plant components is limited. Most reports focus on two phytocannabinoids, (-)-Δ9-trans-tetrahydrocannabinol (Δ9-THC) and cannabidiol (CBD). This study, aimed to identify patterns of phytocannabinoid compositions associated with MC treatment response and with related AEs. Participants in this multicenter prospective cohort were patients with chronic non-cancer pain that were prescribed MC by physicians. Data was collected before MC treatment, at one month (short-term) and at 12 months (long-term). Simultaneously, liquid chromatography mass spectrometry identification and quantification of phytocannabinoids from the cultivars were performed. The monthly dose of each phytocannabinoid for each patient was z-scaled and clustered into ten groups to assess the difference in analgesic treatment response (≥30%/50% pain intensity reduction) and AEs rates. We identified ten clusters that had similar analgesic treatment response rates. However, there were significant differences in AEs rates both at short- and long-term. We identified specific phytocannabinoid compositions that were associated with overall AEs rates (5% compared to 53% at short-term and 44% at long-term) and with specific AEs rates such as MC related central nervous system, gastrointestinal and psychological AEs. To conclude, Evaluating only Δ9-THC or CBD is insufficient to find associations with MC related AEs. Therefore, comprehensive profiling of phytocannabinoids is needed to discover associations to related AEs and help physicians prescribe safer cannabis with less AEs while still relieving pain.
Collapse
Affiliation(s)
- Joshua Aviram
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Gil M Lewitus
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Dorit Pud
- Faculty of Social Welfare and Health Sciences, University of Haifa, Haifa, Israel
| | - Shiri Procaccia
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Paula Berman
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Ben Yellin
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Yelena Vysotski
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Or Hazan
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Elon Eisenberg
- Institute of Pain Medicine, Rambam Health Care Campus, Haifa, Israel; Rappaport Faculty of Medicine, Technion, Israel Institute of Technology, Haifa, Israel
| | - David Meiri
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel.
| |
Collapse
|
15
|
Aviram J, Lewitus GM, Vysotski Y, Uribayev A, Procaccia S, Cohen I, Leibovici A, Abo-Amna M, Akria L, Goncharov D, Mativ N, Kauffman A, Shai A, Hazan O, Bar-Sela G, Meiri D. Short-Term Medical Cannabis Treatment Regimens Produced Beneficial Effects among Palliative Cancer Patients. Pharmaceuticals (Basel) 2020; 13:ph13120435. [PMID: 33265945 PMCID: PMC7761379 DOI: 10.3390/ph13120435] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 11/25/2020] [Accepted: 11/27/2020] [Indexed: 12/14/2022] Open
Abstract
In the last decade the use of medical cannabis (MC) for palliative cancer treatment has risen. However, the choice between products is arbitrary and most patients are using Tetrahydrocannabinol (THC)-dominant cannabis products. In this study, we aimed to assess the short-term outcomes of MC treatment prescribed by oncologists in relation to the type of cannabis they receive. A comparative analysis was used to assess the differences in treatment effectiveness and safety between THC-dominant (n = 56, 52%), cannabidiol (CBD)-dominant (n = 19, 18%), and mixed (n = 33, 30%) MC treatments. Oncology patients (n = 108) reported on multiple symptoms in baseline questionnaires, initiated MC treatment, and completed a one-month follow-up. Most parameters improved significantly from baseline, including pain intensity, affective and sensory pain, sleep quality and duration, cancer distress, and both physical and psychological symptom burden. There was no significant difference between the three MC treatments in the MC-related safety profile. Generally, there were no differences between the three MC treatments in pain intensity and in most secondary outcomes. Unexpectedly, CBD-dominant oil treatments were similar to THC-dominant treatments in their beneficial effects for most secondary outcomes. THC-dominant treatments showed significant superiority in their beneficial effect only in sleep duration compared to CBD-dominant treatments. This work provides evidence that, though patients usually consume THC-dominant products, caregivers should also consider CBD-dominant products as a useful treatment for cancer-related symptoms.
Collapse
Affiliation(s)
- Joshua Aviram
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa 32000, Israel; (J.A.); (G.M.L.); (Y.V.); (S.P.); (O.H.)
| | - Gil M. Lewitus
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa 32000, Israel; (J.A.); (G.M.L.); (Y.V.); (S.P.); (O.H.)
| | - Yelena Vysotski
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa 32000, Israel; (J.A.); (G.M.L.); (Y.V.); (S.P.); (O.H.)
| | - Anton Uribayev
- Department of Oncology, Galilee Medical Center, Nahariya 22100, Israel; (A.U.); (A.L.); (L.A.); (D.G.); (N.M.); (A.K.); (A.S.)
| | - Shiri Procaccia
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa 32000, Israel; (J.A.); (G.M.L.); (Y.V.); (S.P.); (O.H.)
| | - Idan Cohen
- Cancer Center, Emek Medical Center, Afula 18101, Israel; (I.C.); (M.A.-A.)
| | - Anca Leibovici
- Department of Oncology, Galilee Medical Center, Nahariya 22100, Israel; (A.U.); (A.L.); (L.A.); (D.G.); (N.M.); (A.K.); (A.S.)
| | - Mahmud Abo-Amna
- Cancer Center, Emek Medical Center, Afula 18101, Israel; (I.C.); (M.A.-A.)
| | - Luiza Akria
- Department of Oncology, Galilee Medical Center, Nahariya 22100, Israel; (A.U.); (A.L.); (L.A.); (D.G.); (N.M.); (A.K.); (A.S.)
| | - Dmitry Goncharov
- Department of Oncology, Galilee Medical Center, Nahariya 22100, Israel; (A.U.); (A.L.); (L.A.); (D.G.); (N.M.); (A.K.); (A.S.)
| | - Neomi Mativ
- Department of Oncology, Galilee Medical Center, Nahariya 22100, Israel; (A.U.); (A.L.); (L.A.); (D.G.); (N.M.); (A.K.); (A.S.)
| | - Avia Kauffman
- Department of Oncology, Galilee Medical Center, Nahariya 22100, Israel; (A.U.); (A.L.); (L.A.); (D.G.); (N.M.); (A.K.); (A.S.)
| | - Ayelet Shai
- Department of Oncology, Galilee Medical Center, Nahariya 22100, Israel; (A.U.); (A.L.); (L.A.); (D.G.); (N.M.); (A.K.); (A.S.)
| | - Or Hazan
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa 32000, Israel; (J.A.); (G.M.L.); (Y.V.); (S.P.); (O.H.)
| | - Gil Bar-Sela
- Cancer Center, Emek Medical Center, Afula 18101, Israel; (I.C.); (M.A.-A.)
- Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 32000, Israel
- Correspondence: (G.B.-S.); (D.M.); Tel.: +972-4-6495723 (G.B.-S.); +972-77-8871680 or +972-525330031 (D.M.)
| | - David Meiri
- Faculty of Biology, Technion-Israel Institute of Technology, Haifa 32000, Israel; (J.A.); (G.M.L.); (Y.V.); (S.P.); (O.H.)
- Correspondence: (G.B.-S.); (D.M.); Tel.: +972-4-6495723 (G.B.-S.); +972-77-8871680 or +972-525330031 (D.M.)
| |
Collapse
|
16
|
Procaccia S, Ordan M, Cohen I, Bendetz-Nezer S, Seger R. Direct binding of MEK1 and MEK2 to AKT induces Foxo1 phosphorylation, cellular migration and metastasis. Sci Rep 2017; 7:43078. [PMID: 28225038 PMCID: PMC5320536 DOI: 10.1038/srep43078] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Accepted: 01/19/2017] [Indexed: 12/21/2022] Open
Abstract
Crosstalk between the ERK cascade and other signaling pathways is one of the means by which it acquires its signaling specificity. Here we identified a direct interaction of both MEK1 and MEK2 with AKT. The interaction is mediated by the proline rich domain of MEK1/2 and regulated by phosphorylation of Ser298 in MEK1, or Ser306 in MEK2, which we identified here as a novel regulatory site. We further developed a blocking peptide, which inhibits the interaction between MEK and AKT, and when applied to cells, affects migration and adhesion, but not proliferation. The specific mechanism of action of the MEK-AKT complex involves phosphorylation of the migration-related transcription factor FoxO1. Importantly, prevention of the interaction results in a decreased metastasis formation in a breast cancer mouse model. Thus, the identified interaction both sheds light on how signaling specificity is determined, and represents a possible new therapeutic target for metastatic cancer.
Collapse
Affiliation(s)
- Shiri Procaccia
- Department of Biological Regulation, The Weizmann Institute of Science, Rehovot, Israel
| | - Merav Ordan
- Department of Biological Regulation, The Weizmann Institute of Science, Rehovot, Israel
| | - Izel Cohen
- Department of Biological Regulation, The Weizmann Institute of Science, Rehovot, Israel
| | - Sarit Bendetz-Nezer
- Department of Biological Regulation, The Weizmann Institute of Science, Rehovot, Israel
| | - Rony Seger
- Department of Biological Regulation, The Weizmann Institute of Science, Rehovot, Israel
| |
Collapse
|
17
|
Allan CM, Procaccia S, Tran D, Tu Y, Barnes RH, Larsson M, Allan BB, Young LC, Hong C, Tontonoz P, Fong LG, Young SG, Beigneux AP. Palmoplantar Keratoderma in Slurp2-Deficient Mice. J Invest Dermatol 2015; 136:436-443. [PMID: 26967477 PMCID: PMC4789766 DOI: 10.1016/j.jid.2015.11.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 09/29/2015] [Accepted: 10/12/2015] [Indexed: 01/13/2023]
Abstract
SLURP1, a member of the Ly6 protein family, is secreted by suprabasal keratinocytes. Mutations in SLURP1 cause a palmoplantar keratoderma (PPK) known as mal de Meleda. Another secreted Ly6 protein, SLURP2, is encoded by a gene located ~20 kb downstream from SLURP1. SLURP2 is produced by suprabasal keratinocytes. To investigate the importance of SLURP2, we first examined Slurp2 knockout mice in which exon 2–3 sequences had been replaced with lacZ and neo cassettes. Slurp2−/− mice exhibited hyperkeratosis on the volar surface of the paws (i.e., PPK), increased keratinocyte proliferation, and an accumulation of lipid droplets in the stratum corneum. They also exhibited reduced body weight and hind limb clasping. These phenotypes are very similar to those of Slurp1−/− mice. To solidify a link between Slurp2 deficiency and PPK and to be confident that the disease phenotypes in Slurp2−/− mice were not secondary to the effects of the lacZ and neo cassettes on Slurp1 expression, we created a new line of Slurp2 knockout mice (Slurp2X−/−) in which Slurp2 was inactivated with a simple nonsense mutation. Slurp2X−/− mice exhibited the same disease phenotypes. Thus, Slurp2 deficiency and Slurp1 deficiencies cause the same disease phenotypes.
Collapse
Affiliation(s)
- Christopher M Allan
- Department of Medicine, Divisions of Cardiology and Dermatology, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Shiri Procaccia
- Department of Medicine, Divisions of Cardiology and Dermatology, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Deanna Tran
- Department of Medicine, Divisions of Cardiology and Dermatology, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Yiping Tu
- Department of Medicine, Divisions of Cardiology and Dermatology, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Richard H Barnes
- Department of Medicine, Divisions of Cardiology and Dermatology, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Mikael Larsson
- Department of Medicine, Divisions of Cardiology and Dermatology, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Bernard B Allan
- Department of Molecular Biology, Genentech, South San Francisco, California, USA
| | - Lorraine C Young
- Department of Medicine, Divisions of Cardiology and Dermatology, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Cynthia Hong
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, California, USA; Howard Hughes Medical Institute, University of California, Los Angeles, California, USA
| | - Peter Tontonoz
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, California, USA; Howard Hughes Medical Institute, University of California, Los Angeles, California, USA
| | - Loren G Fong
- Department of Medicine, Divisions of Cardiology and Dermatology, David Geffen School of Medicine, University of California, Los Angeles, California, USA.
| | - Stephen G Young
- Department of Medicine, Divisions of Cardiology and Dermatology, David Geffen School of Medicine, University of California, Los Angeles, California, USA; Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, California, USA.
| | - Anne P Beigneux
- Department of Medicine, Divisions of Cardiology and Dermatology, David Geffen School of Medicine, University of California, Los Angeles, California, USA.
| |
Collapse
|
18
|
Yang SH, Procaccia S, Jung HJ, Nobumori C, Tatar A, Tu Y, Bayguinov YR, Hwang SJ, Tran D, Ward SM, Fong LG, Young SG. Mice that express farnesylated versions of prelamin A in neurons develop achalasia. Hum Mol Genet 2015; 24:2826-40. [PMID: 25652409 DOI: 10.1093/hmg/ddv043] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Accepted: 02/02/2015] [Indexed: 12/15/2022] Open
Abstract
Neurons in the brain produce lamin C but almost no lamin A, a consequence of the removal of prelamin A transcripts by miR-9, a brain-specific microRNA. We have proposed that miR-9-mediated regulation of prelamin A in the brain could explain the absence of primary neurological disease in Hutchinson-Gilford progeria syndrome, a genetic disease caused by the synthesis of an internally truncated form of farnesyl-prelamin A (progerin). This explanation makes sense, but it is not entirely satisfying because it is unclear whether progerin-even if were expressed in neurons-would be capable of eliciting neuropathology. To address that issue, we created a new Lmna knock-in allele, Lmna(HG-C), which produces progerin transcripts lacking an miR-9 binding site. Mice harboring the Lmna(HG-C) allele produced progerin in neurons, but they had no pathology in the central nervous system. However, these mice invariably developed esophageal achalasia, and the enteric neurons and nerve fibers in gastrointestinal tract were markedly abnormal. The same disorder, achalasia, was observed in genetically modified mice that express full-length farnesyl-prelamin A in neurons (Zmpste24-deficient mice carrying two copies of a Lmna knock-in allele yielding full-length prelamin A transcripts lacking a miR-9 binding site). Our findings indicate that progerin and full-length farnesyl-prelamin A are toxic to neurons of the enteric nervous system.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Yulia R Bayguinov
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, NV 89557, USA
| | - Sung Jin Hwang
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, NV 89557, USA
| | | | - Sean M Ward
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, NV 89557, USA
| | | | - Stephen G Young
- Department of Medicine, Molecular Biology Institute and Department of Human Genetics, University of California, Los Angeles, CA 90095, USA and
| |
Collapse
|
19
|
Procaccia S, Seger R. Mechanisms of transformation by the MEK1 mutants K57N and D67N. FASEB J 2012. [DOI: 10.1096/fasebj.26.1_supplement.761.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shiri Procaccia
- Department of Biological RegulationWeizmann Institute of ScienceRehovotIsrael
| | - Rony Seger
- Department of Biological RegulationWeizmann Institute of ScienceRehovotIsrael
| |
Collapse
|
20
|
Plotnikov A, Zehorai E, Procaccia S, Seger R. The MAPK cascades: signaling components, nuclear roles and mechanisms of nuclear translocation. Biochim Biophys Acta 2010; 1813:1619-33. [PMID: 21167873 DOI: 10.1016/j.bbamcr.2010.12.012] [Citation(s) in RCA: 613] [Impact Index Per Article: 43.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2010] [Revised: 12/02/2010] [Accepted: 12/08/2010] [Indexed: 12/15/2022]
Abstract
The MAPK cascades are central signaling pathways that regulate a wide variety of stimulated cellular processes, including proliferation, differentiation, apoptosis and stress response. Therefore, dysregulation, or improper functioning of these cascades, is involved in the induction and progression of diseases such as cancer, diabetes, autoimmune diseases, and developmental abnormalities. Many of these physiological, and pathological functions are mediated by MAPK-dependent transcription of various regulatory genes. In order to induce transcription and the consequent functions, the signals transmitted via the cascades need to enter the nucleus, where they may modulate the activity of transcription factors and chromatin remodeling enzymes. In this review, we briefly cover the composition of the MAPK cascades, as well as their physiological and pathological functions. We describe, in more detail, many of the important nuclear activities of the MAPK cascades, and we elaborate on the mechanisms of ERK1/2 translocation into the nucleus, including the identification of their nuclear translocation sequence (NTS) binding to the shuttling protein importin7. Overall, the nuclear translocation of signaling components may emerge as an important regulatory layer in the induction of cellular processes, and therefore, may serve as targets for therapeutic intervention in signaling-related diseases such as cancer and diabetes. This article is part of a Special Issue entitled: Regulation of Signaling and Cellular Fate through Modulation of Nuclear Protein Import.
Collapse
Affiliation(s)
- Alexander Plotnikov
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Isreal
| | | | | | | |
Collapse
|
21
|
Abstract
The ERK signaling cascade is composed of several protein kinases that sequentially activate each other by phosphorylation. This pathway is a central component of a complex signaling network that regulates important cellular processes including proliferation, differentiation, and survival. In most of these cases, the ERK cascade is activated downstream of the small GTPase Ras that, upon activation, recruits and activates the first tier in the cascade, which contains the Raf kinases. Afterward the signal is further transmitted by MEKs, ERKs, and often RSKs in the MAPKK, MAPK, and MAPKAPKs tiers of the cascade, respectively. ERKs and RSKs can further disseminate the signal by phosphorylating and modulating the activity of a large number of regulatory proteins including transcription factors and chromatin modifying enzymes. Understanding the mechanisms of activation and the regulation of the various components of this cascade will enhance our insight into the regulation of the ERK-dependent cellular processes in normal cells or of their malfunctioning in various diseases, including cancer. In this chapter, we describe methods used to determine the activity of ERKs, which upon slight modifications can also be used for the study of other signaling kinases, either within the cascade or in other pathways. These methods have been successfully applied to study the ERK signaling cascades in a variety of tissue-cultured cell lines, homo-genized animal organs, and lower organisms. As such, the use of these methods should expand our knowledge on the regulation of many distinct systems and upon induction of various stimulations.
Collapse
Affiliation(s)
- Shiri Procaccia
- Department of Biological Regulation, The Weizmann Institute of Science, Rehovot, Israel
| | | | | |
Collapse
|
22
|
Catania A, Gerloni V, Procaccia S, Airaghi L, Manfredi MG, Lomater C, Grossi L, Lipton JM. The anticytokine neuropeptide alpha-melanocyte-stimulating hormone in synovial fluid of patients with rheumatic diseases: comparisons with other anticytokine molecules. Neuroimmunomodulation 1994; 1:321-8. [PMID: 8528899 DOI: 10.1159/000097183] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
The aim of this study was to determine if the anticytokine neuropeptide alpha-melanocyte-stimulating hormone (alpha-MSH) occurs, along with interleukin 1 receptor antagonist (IL-1ra) and soluble tumor necrosis factor receptor (sTNFr), in synovial fluid of patients with rheumatoid arthritis (RA), juvenile chronic arthritis (JCA), or osteoarthritis. The data show that alpha-MSH does occur in the synovial fluid and its concentrations are greater in patients with RA than in those with osteoarthritis. Synovial fluid concentrations of IL-1ra and sTNFr were likewise greater in RA. Further, concentrations of alpha-MSH, IL-1-ra, and sTNFr were greater in patients with polyarticular/systemic-onset JCA than in those with pauciarticular disease, that is in patients with greater joint inflammation. Concentrations of alpha-MSH were greater in synovial fluid than in plasma in a substantial proportion of patients, suggesting local production of the peptide; this is the first indication that the anticytokine molecule alpha-MSH is produced within a site of inflammation. Further, it appears that local production of alpha-MSH is induced particularly in those arthritic joints that have more intense inflammatory reactions. This finding, combined with previous evidence of the marked anti-inflammatory activity of alpha-MSH, suggests that the peptide acts locally to modulate proinflammatory influences in rheumatic diseases.
Collapse
Affiliation(s)
- A Catania
- Institute of Internal Medicine, Infectious Diseases, and Immunopathology, University of Milan, Italy
| | | | | | | | | | | | | | | |
Collapse
|
23
|
Procaccia S, Blasio R, Villa P, Lazzarin A, Bonacina C, Novati R, Bini T, Memoli M, Imondi N, Zanussi C. Rheumatoid factors and circulating immune complexes in HIV-infected individuals. AIDS 1991; 5:1441-6. [PMID: 1814328 DOI: 10.1097/00002030-199112000-00005] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We studied serological aspects of autoimmunity in patients with AIDS, AIDS-related complex (ARC) and in individuals at risk for AIDS. Immunoglobulin (Ig) M, IgG and IgA rheumatoid factors (RF) were quantified by enzyme-linked immunosorbent assay (ELISA), Ig by radial immunodiffusion, and circulating immune complexes (CIC) by the CIC-conglutinin and CIC-complement 1q (C1q) assays. Mean IgM RF levels were normal in AIDS patients, but those of ARC patients were higher and more frequent than the levels defined by agglutination methods. Similar observations were made for intravenous drug users (IVDU) and for both HIV-seropositive and HIV-seronegative homosexual men. Mean IgG RF levels were normal in AIDS and ARC patients but high in homosexual men and, to a lesser degree, in IVDU. IgA RF levels were high in many AIDS and ARC patients, in homosexual men, and in haemophiliac and control groups. The selective increase of the IgA isotype in AIDS was confirmed by the Ig results, which also showed an IgG increase in all groups. IgM were mainly high in people with ARC. CIC were detected in 68% of ARC patients by both methods, and in 55% of AIDS patients by CIC-Clq. A high incidence of positive samples in all at-risk populations, but particularly in seronegative individuals, was observed using CIC-conglutinin. CIC-C1q also revealed larger amounts of CIC in HIV-seronegative individuals, mainly in homosexual men. The study of these humoral aspects of autoimmunity provides useful information on the impairment of B-cells in patients with AIDS and ARC.(ABSTRACT TRUNCATED AT 250 WORDS)
Collapse
Affiliation(s)
- S Procaccia
- Istituto di Medicina Interna, University of Milan, Italy
| | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Procaccia S, Bianchi Porro G, Colucci A, Villa P, Blasio R, Ardizzone S, Bonacina CA, Zanussi C. Detection of rheumatoid factors of different isotypes and of circulating immune complexes in patients with inflammatory bowel disease. Boll Ist Sieroter Milan 1990; 69:413-21. [PMID: 2152301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The behaviour of some serological aspects of autoimmunity was studied in patients with inflammatory bowel disease (IBD) by determining the incidence and levels of serum IgM, IgG and IgA rheumatoid factors (RF) and of circulating immune-complexes (IC) in 67 patients suffering from ulcerative colitis (UC) and 53 from Crohn's disease (CD). Sera from 40 young healthy subjects were included as controls. RF were detected by an enzyme linked immuno-assay (ELISA) and IC by the CIC-conglutinin and the CIC-C1q assays. ELISA detected a higher incidence of IgM RF in both UC and CD groups than the routine agglutination tests, although the mean levels were non significantly higher than in controls. Mean IgG RF levels were significantly above normal in UC and CD patients, the latter showing a greater incidence of elevated values and higher mean levels. IgA RF were significantly elevated only in CD patients; mean values for the UC group were within the normal range. The CIC-conglutinin test did not detect a significant incidence or high mean levels of IC and the CIC-C1q assay turned up a sizeable number of positive samples only in the CD group. Although still only preliminary, these overall findings suggest that RF activity is somehow present in patients with IBD. The greater prevalence of IC in CD patients, together with the patterns of IgG and IgA RF support the concept that this disease possibly involves autoimmune phenomena more than ulcerative colitis.
Collapse
Affiliation(s)
- S Procaccia
- Istituto di Clinica Medica I, University of Milan, Italy
| | | | | | | | | | | | | | | |
Collapse
|
25
|
|
26
|
Procaccia S, Lanzanova D, Caputo D, Ferrante P, Papini E, Gasparini A, Colucci A, Bianchi M, Villa P, Blasio R. Circulating immune complexes in serum and in cerebrospinal fluid of patients with multiple sclerosis. Characterization and correlation with the clinical course. Acta Neurol Scand 1988; 77:373-81. [PMID: 3046225 DOI: 10.1111/j.1600-0404.1988.tb05922.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We studied circulating immune complexes (IC) in the serum and cerebrospinal fluid (CSF) of patients with clinically defined multiple sclerosis (MS), in order to establish a correlation with the clinical course of the disease and to investigate the molecular composition of the IC isolated from patients in active phase of the disease. Serum IC levels were found to be significantly increased in patients from the progressive and active relapsing-remittent subgroups with both the CIC-conglutinin and C1q-binding methods. High levels of IC in CSF were detected only in the subgroup consisting of the relapsing-remittent patients in disease exacerbation when IC were determined by the C1q-binding test. No significant increase in serum or in CSF were found using the mRF-I test. The preliminary results of a qualitative investigation on serum IC in MS indicated that they are heterogeneous in nature, their size is mainly of the intermediate type, and they contain IgG, IgM, complement components and beta 2-microglobulins, the latter presenting an observation both new and interesting for studies on serum IC in MS patients.
Collapse
Affiliation(s)
- S Procaccia
- Institute of Medicine, University of Milan Medical School, Italy
| | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Procaccia S, Gasparini A, Colucci A, Lanzanova D, Bianchi M, Forcellini P, Villa P, Blasio R, Zanussi C. ELISA determined IgM, IgG and IgA rheumatoid factors in rheumatoid arthritis and in other connective tissue diseases. Clin Exp Rheumatol 1987; 5:335-42. [PMID: 3440330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
We used an adaptation of an enzyme-linked immunoadsorbent assay (ELISA) to determine serum levels of IgM, IgG and IgA rheumatoid factors (RF) in 50 patients with classic or definite rheumatoid arthritis (RA) according to the ARA criteria, balanced for positive or negative-routine Latex-RF reaction. A control group of 50 young normal subjects and a reference group of 44 patients with other connective tissue diseases (OCTD) were also studied. We confirmed the high sensibility of the method, together with its good specificity and reproducibility. For the IgM RF a very significant correlation was found between ELISA results and Latex-RF titration (p less than 0.001). Many Latex-RF negative RA patients had high ELISA levels of IgM RF, suggesting that this assay reveals, at least in part, hidden or non-agglutinating IgM RF. Among the OCTD group only some SLE cases, mainly Latex-RF positive, had enhanced IgM RF on ELISA. Considered quantitatively, IgG RF did not play a significant diagnostic role for RA (p greater than 0.05), because they were also found, with widely dispersed values, in normal subjects, and because the mean increase in RA patients was relatively small. Interestingly, IgA RF were above the normal range in many RA patients, both Latex-RF positive or negative. The mean values differed significantly from those of controls (p less than 0.005), and a correlation was observed between IgA RF levels and IgA containing immune-complexes. Normal IgA RF values were observed in SLE patients, even if Latex-RF positive, suggesting that their increase in RA patients is not the mere expression of a polyclonal B cell activation.
Collapse
Affiliation(s)
- S Procaccia
- Clinica Medica II, University of Milan, Italy
| | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Procaccia S, Lazzarin A, Colucci A, Gasparini A, Forcellini P, Lanzanova D, Foppa CU, Novati R, Zanussi C. IgM, IgG and IgA rheumatoid factors and circulating immune complexes in patients with AIDS and AIDS-related complex with serological abnormalities. Clin Exp Immunol 1987; 67:236-44. [PMID: 3608224 PMCID: PMC1542594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
To investigate some humoral aspects which may reflect the involvement of B lymphocytes in the acquired immunodeficiency syndrome (AIDS), we used an enzyme-linked immunoassay (ELISA) to determine the levels of IgM, IgG and IgA rheumatoid factors (RF) in 16 patients suffering from full-blown AIDS and 32 patients with AIDS-related complex (ARC), in the clinical form of lymphoadenopathy syndrome (LAS), compared with 40 healthy, young heterosexual subjects. Both AIDS and ARC patients showed a greater incidence of high IgM RF levels, with mean values significantly higher than controls, but with no differences between the two pathological groups. IgG RF behaviour was similar in the two patient populations and the healthy subjects. IgA RF were significantly raised in AIDS and ARC. Further information on RF was obtained by determination of the immunoglobulin levels of the respective isotypes in the same patients. Mean IgG levels were above normal in AIDS and ARC patients, but the latter group showed a higher incidence of increased values and higher mean levels. The IgA isotype was significantly increased mainly in AIDS patients. The behaviour of IgM was virtually the same in the three groups studied. A difference between AIDS and ARC patients was established by the detection of circulating immune-complexes (IC) by the C1q-binding and CIC-conglutinin assays. IC were significantly high, by both methods, only in the ARC group, but normal or very low in AIDS. These overall findings suggest once again the impairment of B cell function in AIDS, with prevalent hyperactivation in ARC and exhaustion in full-blown AIDS, and apparent preservation, in the latter group, of the antibody responses which are more closely related to the activity of subsets of T helper cells.
Collapse
|
29
|
Procaccia S, Borroni G, Lanzanova D, Papini E, Perego R, Ferrante P. IgG rheumatoid factors behaviour in young normal subjects following vaccination. Boll Ist Sieroter Milan 1983; 62:451-61. [PMID: 6671029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
In order to contribute to explain the finding of Rheumatoid Factors of the IgG class in all normal subjects, even at low levels, a study on their behaviour in a group of young subjects serving in the army, at the time of anti-typhoid and antitetanic vaccination, and in the following two months, was conducted. Parallely some aspecific serological parameters of autoimmunity were determined. The results demonstrate, first of all, a good antibody response to the vaccine in all subjects observed. Immunoglobulins of the IgG, IgA, and IgM class were normal in all samples. Complement factors C3 and C4 were slightly decreased after the second dose of vaccine, suggesting a modest consumption probably due to immune complexes formation. Factor C3A showed a slight increase, may be to be considered as its property of an acute phase reactant. Autoantibodies determined by immunofluorescence were constantly negative. IgM rheumatoid factors became transitory positive in a significant proportion. IgG rheumatoid factors demonstrated a two-phase increase, more evident after the second dose of vaccine. We can conclude, mainly for the latest parameter, that these results reveal an autoimmune serological response, even quantitatively modest, concomitant to the specific sensitization resulting from vaccination.
Collapse
|
30
|
Perego R, Vezzoli S, Manfredi W, Bigi G, Procaccia S. Isolation and characterization of circulating immune complexes in patients with rheumatoid arthritis. Boll Ist Sieroter Milan 1983; 62:462-8. [PMID: 6608359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
We studied soluble immune complexes in sera and synovial fluids of ten patients suffering from Rheumatoid Arthritis (RA), six seropositive and four seronegative. Isolation of the immune complexes was obtained by a combination of gel filtration and affinity chromatography from biological fluids. The first step involved preparation of a globulin-enriched fraction by precipitation of either serum or synovial fluid with 5% polyethylene glycol 6000. The precipitate was solubilized in Borate NaCl buffer and fractioned by gel filtration in Ultrogel AcA 34. Eluted peaks were submitted to affinity chromatography on a Protein A-Sepharose CL 4B column. The recovered material was analyzed by double immunodiffusion and electrophoresis in 6-20% polyacrylamide gel containing sodium dodecylsulphate (SDS-PAGE) and was shown to contain IgG, IgM, IgA with small amounts of C1q, C3 and C4. Observation occurred that there is a different distribution of macromolecular and intermediate complexes in seropositive and seronegative samples respectively, total C1q binding activity being equal.
Collapse
|
31
|
Milanese C, Procaccia S, La Mantia L, Guzzetti E, Corridori F. Peripheral neuropathy and solitary myeloma: analysis of serum and CSF IgG in two cases. J Neurol Neurosurg Psychiatry 1982; 45:468-70. [PMID: 6283034 PMCID: PMC1083130 DOI: 10.1136/jnnp.45.5.468] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Clinical and laboratory findings of two patients affected by solitary myeloma, IgG3 lambda type, with peripheral neuropathy are reported. In both cases the same IgG isoelectrofocusing pattern was found in cerebrospinal fluid and serum samples. Data are consistent with damage of the blood-brain barrier.
Collapse
|
32
|
Ghezzi A, Caputo D, Montanini R, Procaccia S, Zibetti A, Cazzullo CL. Multiple tests in the diagnosis of multiple sclerosis. Ital J Neurol Sci 1981; 2:297-302. [PMID: 7341552 DOI: 10.1007/bf02335411] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Visual evoked potentials (VEPs), somatosensory evoked potentials (SEPs), E-UFA test and CSF isoelectrofocusing (IEF) were applied to 42 multiple sclerosis patients. VEPs were abnormal in 29 cases. SEPs in 31 cases, E-UFA in 30 cases, CSF IEF in 38 cases. At least two tests were abnormal in 41 out of 42 patients; 16 cases revealed pathological responses in three tests (38,1%), 15 in four of them (35,7%). The authors discuss the value of using several tests in the diagnosis of multiple sclerosis and emphasize their importance for the purpose of diagnostic classification.
Collapse
|
33
|
Bardare M, Besana C, Borroni C, D'Angelo R, Procaccia S, Ortolani C, Zapparoli B. [Evaluation of some inflammatory and immune parameters in juvenile rheumatoid arthritis during the acute phase and in remission]. Boll Ist Sieroter Milan 1980; 59:35-45. [PMID: 7459014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A serologic study was carried out in 27 children.-- 12 females and 15 males -- affected with juvenile rheumatoid arthritis (JRA), systemic and polyarticular type, in active phase and in remission. Beside the routine assays (ESR and haemometry), a dosage of serum immunoglobulins (IgA, M, G) and complement components (C3 and C4) was carried out; antinuclear antibodies with immunofluorescence, rheumatoid factors with classical method (latex test and Waaler-Rose reaction) and antigamma factors (AGGF) according to modified Schur's method were looked for. Polymorphonuclear function was assayed employing NBT test, phagocytosis and killing with Klebsiella. The results confirmed that the most reliable activity index is the ESR, while the WBC count is move variable and that the rheumatoid factors according to the usual techniques are almost always absent. As a whole, in JRA the levels of IgM, IgG, IgM-AGGF, C4 assayed higher than in controls. In the different subgroups, the systemic disease is characterized by higher serum IgA and IgG-AGFF. The PMN function was globally normal.
Collapse
|
34
|
Alkabes M, Palmieri G, Bellasio G, Procaccia S. [Evaluation of the therapeutic efficacy and tolerance of diphenpyramide in a double-blind comparison with indomethacin in the treatment of osteoarthrosis]. Clin Ter 1978; 86:137-45. [PMID: 369768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
35
|
Procaccia S, Ortolani C. [Behavior of lactate dehydrogenase isoenzymes after cadaveric renal homografts in humans]. Quad Sclavo Diagn 1972; 8:171-82. [PMID: 4576975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
36
|
Procaccia S, Santambrogio C, Massari N. [Isoenzymes of the tissue creatine phosphokinase of the rabbit demonstrated by polyacrilamide gel electrophoresis]. Minerva Med 1971; 62:2457-60. [PMID: 5092265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
37
|
Massari N, Tenconi L, Civardi F, Santambrogio C, Negri S, Procaccia S, Samaja U. [Methods of investigations of "functionality" of the isolated and perfused liver]. Minerva Med 1970; 61:3121-6. [PMID: 4914584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
38
|
Negri S, Civardi F, Santambrogio C, Procaccia S, Massari N. [Determination of mesenchymal hepatic clearance by means of high molecular weight colloidal Fe]. Minerva Med 1970; 61:1896-901. [PMID: 5422049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
39
|
Procaccia S, Civardi F, Negri S, Santambrogio C, Massari N. [Isolated liver perfusion: behavior of lactate dehydrogenase activity and its isoenzymes]. Minerva Med 1970; 61:509-13. [PMID: 5417273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
40
|
Procaccia S, Santambrogio C, Negri S, Tenconi L, Samaia U, Massari N. [Perfusion of the isolated liver: measurement of its functional tolerance by study of specific metabolic changes]. Minerva Med 1969; 60:3013-7. [PMID: 5806657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
41
|
Tenconi L, Procaccia S, Civardi F, Massari N. [Perfusion of the isolated liver. Changes in the time of tissue electronic paramagnetic resonance (or ESR, electrospin resonance)]. Minerva Med 1969; 60:2244-7. [PMID: 4307077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
42
|
Civardi F, Tenconi L, Procaccia S, Negri S, Santambrogio C. [The isolated and perfused liver. Observations on its morpho-functional changes in the study of biochemical and biological syndromes]. Minerva Med 1969; 60:2087-91. [PMID: 5790872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
43
|
Negri S, Civardi F, Tenconi L, Massari N, Procaccia S. [Serum ornithine-carbamoyl-transferase in hepatic pathology]. Minerva Med 1969; 60:171-3. [PMID: 5776765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
44
|
Tenconi L, Guardamagna C, Samaja U, Procaccia S, Bailo U, Massari N. [Effect of clomiphene on hepatic function]. Minerva Ginecol 1968; 20:1875-1878. [PMID: 5734791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
|
45
|
Procaccia S, Civardi F, Tenconi L, Massari N, Samaja U. [Behavior of ceruloplasmin activity in some liver diseases]. Minerva Med 1968; 59:5267-8. [PMID: 5717379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
46
|
Negri S, Santambrogio C, Procaccia S, Tenconi L. [Perfusion of the isolated liver: behavior of the total amount of tissue ATP with time]. Biol Lat 1968; 21:103-6. [PMID: 5735718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
47
|
Tenconi L, Santambrogio C, Civardi F, Procaccia S, Massari N. [Trypsin-like activity of the serum in the diagnosis of exocrine pancreas diseases: experimental study]. Biol Lat 1968; 21:81-7. [PMID: 5735723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
48
|
Negri S, Procaccia S, Santambrogio C, Tenconi L, Massari N. [Perfusion of the isolated liver: behavior of the isoenzymes of esterase activity in subcellular fractions]. Biol Lat 1968; 21:95-8. [PMID: 5735724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
49
|
Santambrogio C, Negri S, Procaccia S, Massari N. [Perfusion of the isolated liver: behavior of acid phosphatasic activity and its isoenzymes]. Biol Lat 1968; 21:99-102. [PMID: 5735725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
50
|
Santambrogio C, Negri S, Tenconi L, Civardi F, Procaccia S. [Perfusion of the isolated liver: measurement of the enzymatic activities of the tissue]. Biol Lat 1968; 21:89-93. [PMID: 4310152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|